senior network security engineer

HCA Healthcare

<div>Are you passionate about the patient experience? At HCA Healthcare, we are committed to caring for patients with purpose and integrity. We care like family! Jump-start your career as a Senior Network Security Engineer today with HCA Healthcare.
<h5 class="jobSectionHeader">Job Summary and Qualifications</h5>
<h5 class="jobSectionHeader">JOB SUMMARY
Lead efforts in implementation, modernization, standardization and enhancement of network security controls to protect a Fortune 100 enterprise&rsquo;s infrastructure, patients and data from increasing risk and threats. The position will perform and oversee reviews and assessments of policies for risk and vulnerabilities and identify potential hardening opportunities, provide remediation recommendations, designs and solutions while implementing configuration changes for continuous security control maturity and risk reduction.
This position will work collaboratively with other IT teams to implement risk management practices, optimize technology solutions, monitor and adjust infrastructure to meet current and future needs, ensure compliance with regulatory requirements, and continuously plan for the future to improve our security posture and control maturity. The ideal candidate will be experienced in network security fundamentals and have a strong understanding of how to develop and implement remediation plans to address identified risks, implement new features and technologies, standardize and optimize existing technologies, establish and maintain baselines, and automate processes wherever possible to increase efficiency and reduce errors.
GENERAL RESPONSIBILITIES
Responsibilities include but are not limited to the following;
<ul><li>Evaluate, recommend and implement appropriate security measures, including next-generation firewall features, intrusion detection/prevention systems, VPN, network segmentation/zero trust, multifactor and access control mechanisms</li></ul>
<ul><li>Conduct firewall rule reviews, security audits, baseline and best practice compliance, forensic network investigation to support data transmission adherence and implement or oversee recommendations</li></ul>
<ul><li>Support and manage network security solutions to protect the organization's infrastructure, applications, and data from cyber threats in accordance with regulatory and industry requirements, such as PCI DSS, SOX, NIST, ISO 27000 and HIPAA</li></ul>
<ul><li>Evaluate vulnerability assessments, penetration tests, metrics and security audits to identify potential hardening opportunities and provide remediation recommendations and solutions.</li></ul>
<ul><li>Recommend and implement complex solutions and configuration changes within a large enterprise network in support of continuous security control maturity and risk reduction</li></ul>
<ul><li>Participate in incident response and disaster recovery planning and testing</li></ul>
<ul><li>Collaborate with other IT teams to ensure that network security controls are integrated with other systems, applications and comply with security standards</li></ul>
<ul><li>Routinely perform audits and control tests on deployed technologies, collecting and consolidating indicators of performance, risks, trends and providing recommendations, baseline and regulatory compliance ratings.</li></ul>
<ul><li>Manage relationships with vendors and contractors to ensure that security services are timely delivered and implemented in alignment to security policies</li></ul>
<ul><li>Collaborate on the development and documentation of security policies and procedures, training and awareness.</li></ul>
<ul><li>Provide guidance and training to peers on compliance and best practices.</li></ul>
<ul><li>Research design enhancements and identify automated solutions or best of breed technologies while assisting with integration tests with vendors.</li></ul>
<ul><li>Keep up-to-date with the latest threats and vulnerabilities, as well as relevant regulations and industry best practices, and implement recommendations to improve the organization's security posture and control maturity.</li></ul>
EDUCATION AND EXPERIENCE
Bachelor&rsquo;s degree preferred
Must have 5+ years of relevant work experience required
OTHER/SPECIAL QUALIFICATIONS
Extensive experience with security technologies, such as next-generation firewalls, intrusion detection/prevention systems, VPN, network segmentation, access control mechanisms, and security design, management, best practices, policy, standards in large 1000+ firewall environments.
Expertise in Checkpoint Firewall, CMA, Provider-1, Maestro, VSX/VSLS, CloudGuard
Cisco Network Security Products &amp; Technologies (i.e. Firepower, ASA, VPN, WSA, ISE, Stealthwatch, etc.)
Strong understanding of network protocols, topologies, tools, subnetting and architectures
Aptitude in Network Security Policy Management tools (Algosec, Tufin) and/or conducting risk assessments, firewall rule review, and security audits
Strong knowledge of enterprise security technologies and processes (Zscaler, Advanced Threat Detection Tools, Antibot, Antimalware, Threat Emulation, SIEM, IDS/IPS, Network Packet Analysis, Netflow, etc.)
Experience designing solutions for security standards and frameworks, such as HIPAA, SOX, PCI DSS, HITECH, ISO/IEC 27001, and NIST Cybersecurity Framework
Network Security Management Tools/Technologies (e.g: Splunk, Trustsec, segmentation, syslog, etc..)
Excellent verbal and written communication, interpersonal, analytical and problem-solving skills.
Demonstrated leadership and mentorship skills, with the ability to guide and train junior engineers
Ability to work independently and as part of a team
Relevant certifications from ISC2 (CISSP), GIAC (GISP), ISACA (CISA), Cisco Security or CompTIA are a plus
PHYSICAL DEMANDS/WORKING CONDITIONS
<ul><li>Position expectations are minimal supervision required due to design, service and support knowledge/skillsets</li></ul>
<ul><li>Position may require periodic after hours work and light travel at times with little notice</li></ul>
<ul><li>Position requires sitting for extended periods. In office requirement minimum 2 days per week.</li></ul>
Benefits</h5>
HCA Healthcare, offers a total rewards package that supports the health, life, career and retirement of our colleagues. The available plans and programs include:<ul><li>
Comprehensive benefits for medical, prescription drug, dental, vision, behavioral health and telemedicine services</li><li>
Wellbeing support, including free counseling and referral services</li><li>
Time away from work programs for paid time off, paid family leave, long- and short-term disability coverage and leaves of absence</li><li>
Savings and retirement resources, including a 401(k) Plan with a 100% match on 3% to 9% of pay (based on years of service), Employee Stock Purchase Plan, flexible spending accounts, preferred banking partnerships, retirement readiness tools, rollover support and financial wellbeing counseling</li><li>
Education support through tuition assistance, student loan assistance, certification support, dependent scholarships and a partnership with Galen College of Nursing</li><li>
Additional benefits for fertility and family building, adoption assistance, life insurance, supplemental health protection plans, auto and home insurance, legal counseling, identity theft protection and consumer discounts</li></ul>
Learn more about Employee Benefits
Note: Eligibility for benefits may vary by location.
HCA Healthcare has been recognized as one of the World's Most Ethical Companies&reg; by the Ethisphere Institute more than ten times. In recent years, HCA Healthcare spent an estimated $3.7 billion in cost for the delivery of charitable care, uninsured discounts, and other uncompensated expenses. 
&quot;The great hospitals will always put the patient and the patient's family first, and the really great institutions will provide care with warmth, compassion, and dignity for the individual.&quot;- Dr. Thomas Frist, Sr. 
HCA Healthcare Co-Founder
If you are looking for an opportunity that provides satisfaction and personal growth, we encourage you to apply for our Senior Network Security Engineer opening. We promptly review all applications. Highly qualified candidates will be contacted for interviews. Unlock the possibilities and apply today!
We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.</div>

Senior Network Security Engineer

malomatia

<div>
 
 We are looking for a
 
 Senior Network and Security Engineer
 
 to join our
 
 Network &amp; Security Operations Center (NSOC)
 
 . The ideal candidate will have
 
 8&ndash;10 years of hands-on experience
 
 managing
 
 Huawei network and security infrastructure
 
 , including routers, switches, firewalls, and security appliances.
 
 
 
 
 
 
 
 
 
 Key Responsibilities
 
 
 <ul>
 <li>
 Deploy, configure, and manage Huawei routers (NE/AR), switches (S5700/S6700/CloudEngine), and firewalls (USG6000 series).
 </li>
 <li>
 Provide 24x7 NOC support, including incident response, troubleshooting, and ITIL-compliant change management.
 </li>
 <li>
 Implement and manage security solutions: firewall policies, IPS/IDS, VPNs, and SecoManager
 </li>
 <li>
 Maintain configuration backups, firmware updates, patches, and version control.
 </li>
 <li>
 Create technical documentation, network diagrams, SOPs, runbooks, and performance reports.
 </li>
 <li>
 Work with multi-vendor environments (Cisco, Juniper, Palo Alto, Fortinet) and support cloud &amp; automation initiatives (Azure/AWS, Python, Bash, Ansible, PowerShell).
 </li>
 </ul>
 
 
 
 
 
 Qualification
 
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in IT, Computer Science, Telecommunications, or related field.
 </li>
 <li>
 HCIE-Datacom / HCIE-Security or HCIP-Datacom with HCIP-Security; additional certifications like CCNP/CCIE, JNCIP/JNCIE, PCNSE, NSE 4&ndash;7, CISSP, ITIL Foundation are a plus.
 </li>
 <li>
 Strong knowledge of routing (BGP, OSPF, IS-IS, MPLS) and switching (VLANs, STP, LACP, VXLAN).
 </li>
 <li>
 Excellent troubleshooting, analytical, and English communication skills.
 </li>
 <li>
 Willingness to work in shift rotations for 24x7 NOC operations and provide on-call support.
 </li>
 </ul>
</div>

Senior Network and Security Engineer

Ceenex Global LLC

We are Hiring!!!#UAEjobs #DubaiJobs #NetworkEngineer #CCIE #Senior #L3Position - Senior L3 Network Admin&ndash; Security, Cloud &amp; Enterprise NetworksLocation - Dubai, UAEExperience - 8+ yearsSalary - Max 20000 AED + BenefitsJob SummaryWe are seeking a highly senior L3 Network Engineer / Network Architect with 8&ndash;10 years of hands-on enterprise experience to provide architecture-level support, lead complex network design validation, and drive network optimization, security posture, and availability improvements across enterprise and hybrid cloud environments. The role requires CCIE-level expertise, deep Azure networking skills at L3 level, and strong leadership in critical escalations, Zero Trust implementation, and governance.Experience&middot; 8&ndash;10 years of experience in enterprise network engineering, with senior L3 / architect-level ownership&middot; Proven experience leading large-scale, mission-critical network environmentsTechnical Expertise (Mandatory)&middot; CCIE (Enterprise Infrastructure or Security) &ndash; #mandatory&middot; Palo Alto Firewalls (expert level, including segmentation &amp; Zero Trust)&middot; Cisco Firepower Threat Defense (FTD)&middot; Microsoft Azure Networking &ndash; L3 level&middot; Cisco DNAC, Cisco ISE, Cisco WLC&middot; F5 Load Balancers&middot; Strong expertise in BGP, OSPF, SD-WAN, LAN/WAN&middot; Solid understanding of DNS, DHCP, and enterprise network servicesCertifications (Mandatory / Preferred)&middot; CCIE &ndash; Enterprise Infrastructure or Security (#Mandatory)&middot; Palo Alto Networks: PCNSE (strongly preferred)&middot; Microsoft Azure: AZ-700 (Azure Network Engineer Associate)&middot; F5 Networks: F5 Certified Administrator / Specialist&middot; ITIL&reg; 4 Foundation (preferred)APPLY AS SOON AS POSSIBLE!Email- greeshma@ceenexglobal.comJob Type: Full-timePay: AED16,000.00 - AED20,000.00 per monthWork Location: In person

Senior L3 Network Admin– Security, Cloud & Enterprise

Humana

<div><h1 class="jobSectionHeader">Become a part of our caring community 
</h1>
The Senior Network Engineer designs, analyzes, plans and modifies network components supporting customer communication implementation activities. The Senior Network Engineer work assignments involve moderately complex to complex issues where the analysis of situations or data requires an in-depth evaluation of variable factors.
Job Description
The Senior Network Engineer (Remote Solutions) is responsible for developing and evaluating remote site solutions throughout Humana and its subsidiaries. This role prepares analyses of short-term and long-term capacity requirements for switching, routing, transmission, and signaling. It involves conducting SDWAN network design and testing, as well as feasibility and cost studies. The engineer develops standard solutions and establishes the required sequence of network activities. Site growth and expansion evaluations are conducted to determine the impact on remote services. The Senior Network Engineer actively participates in departmental strategy and makes decisions on moderately complex to highly complex technical issues related to project components. Work is performed independently, with considerable latitude in determining objectives and approaches to assignments. The position requires participation in on-call and implementation duties during nights and weekends, as needed. Humana seeks a Senior Network Engineer who will deliver solutions for multi-platform network connectivity. This critical role within Humana&rsquo;s IT organization encompasses engineering and design, planning, implementation, and the establishment of operational and maintenance programs to deliver best-in-class, next-generation SDWAN and remote site infrastructure. Responsibilities include optimizing all aspects of the remote network ecosystem, such as performance, resiliency, availability, resource utilization, and innovation. Additionally, this position provides cloud network design, engineering, and administrative support for both physical and virtual networking devices within multi-platform environments. The Senior Network Engineer is responsible for leveraging highly available networking technologies in a heterogeneous environment.
The scope will include the following areas of concentration:<ul><li>
Network engineering and implementation expertise supporting multiple software defined network overlay technologies; Planning, designing, and deploying new network infrastructure and connectivity for complex environments.</li><li>
Overseeing and performing administration, configuration, and monitoring of all network equipment &amp; cloud resources (switches, routers, firewalls, Expressroute Gateways, User Defined Route tables, etc.).</li><li>
Support the elimination of existing datacenter dependencies to enable cloud/fastest-path access (i.e. VPN, Web Proxy, etc...)</li><li>
Connectivity solutions for supporting a hybrid cloud strategy;</li><li>
WAN circuit topology and telco/carrier technical integration.</li></ul> 
Engineering responsibilities for these areas of concentration include, but are not limited:
<ul><li>Design and implement complex solutions across multiple SD-WAN and wireless platforms.</li><li>
Build and maintain robust authentication policies using Aruba ClearPass Policy Manager and Cisco ISE.</li><li>
Develop integrations for Zscaler ZIA with existing firewall stacks and edge infrastructure.</li><li>
Manage high-availability environments across diverse switching and wireless platforms.</li><li>
Participate in the lifecycle of multiple large-scale projects, ensuring high-quality delivery through rigorous Methods of Procedure (MOPs).</li><li>
Serve as a technical mentor to junior and mid-level engineers, conduct deep-dive technical reviews, and foster a culture of documentation with attention to detail.</li><li>
Partnering with internal and external business groups to develop technical solutions to meet business objectives.</li><li>
Design for new solutions;</li><li>
Standard solution configuration;</li><li>
Technology roadmap development, management, and maintenance;</li><li>
Documenting and updating all network infrastructure and supported business processes.</li><li>
Capacity and performance planning;</li><li>
 Integration with related infrastructure engineering efforts;</li><li>
Alignment and integration with information security requirements;</li><li>
Disaster recovery/business continuity integration.</li><li>
Continuous knowledge and skills improvement;</li><li>
WAN circuit topology and telco/carrier technical integration;</li><li>
Assist in motivating and growing the Network Engineering team to its next level of maturity, agility (NetDevOps) and scalability;</li><li>
Help build foundation and help define capabilities and processes to address network needs in tactical and strategic terms;</li><li>
L4 Troubleshooting &amp; resolving network issues and outages;</li><li>
Application performance troubleshooting using network/cloud tools and methodology;</li><li>
Define, documenting, and enforcing network standards;</li><li>
Perform after-hours solutions implementation;</li><li>
 Support other teams as needed, after-hours;</li><li>
 Participates in on-call rotation as needed</li><li>
 Write &amp; maintain documentation &amp; SOP's for other operations teams.</li></ul><h1 class="jobSectionHeader"> 
Use your skills to make an impact 

</h1>Required Qualifications:<ul><li>
BS/BA, preferably in a technical or scientific field or in lieu of BS/BA, 4+ years industry experience + industry certifications</li><li>
4+ years of experience working with SDWAN architecture network designs, implementations, and support</li><li>
Network engineering certification such as CCNP, Fortinet NSE or equivalent</li><li>
4+ years of technical network engineering experience, and 3+ years of project leadership experience</li><li>
4+ years of Layer 2/ Layer 3 network architectural design (WAN/Cloud/Data Center) and engineering experience</li><li>
4+ years of experience working with BGP and other WAN technologies</li><li>
Strong experience supporting large-scale environments and remote sites</li><li>
Experience with Cisco networking equipment &bull; Experience with Palo Alto Firewalls</li><li>
Experience in Site-to-Site VPN technologies</li><li>
Knowledge of QoS and network security functions (firewalls, VPN, IPS, etc)</li><li>
Ability to manage complex multi-organizational projects</li><li>
Experience with implementing and operating software-defined network environments (Cisco, Aruba, Fortinet, Meraki etc.)</li><li>
Vendor management skills (hardware/software security vendors as well as third party vendors)</li><li>
 Experience working with Data Center Colocation facilities and virtual network fabric provided by vendors such as Equinix and Mega-Port.</li><li>
US Citizenship</li><li>
Pass eQIP certification background check</li></ul>
Preferred Qualifications<ul><li>
Demonstrated experience with DevOps</li><li>
Infrastructure as Code experience</li><li>
Programming/scripting languages and frameworks knowledge and experience, in support of automation (Python, Ansible, etc.)</li><li>
Familiarity with Akamai, ZScaler, and ThousandEyes</li><li>
Experience with AGILE methodology &amp; ITSM processes</li><li>
Understanding of CSP network offerings and how to apply them to public cloud providers (Amazon AWS, MS Azure, Google GCP).</li><li>
Understanding of Cloud Network Security technologies</li><li>
Familiarity with public cloud provider PaaS and SaaS offerings (e.g. Azure Kubernetes Service, Application Service Environment, etc.) Data Center infrastructure solutions: Cisco (R&amp;S), Palo Alto (NGFW + IDS/IPS functions), Infoblox (DDI), Cisco ISE, also implemented on Cisco products</li></ul> 
Additional Information
Work-At-Home Requirements<ul><li>
WAH requirements: Must have the ability to provide a high speed DSL or cable modem for a home office. Associates or contractors who live and work from home in the state of California will be provided payment for their internet expense.</li><li>
A minimum standard speed for optimal performance of 25x10 (25mpbs download x 10mpbs upload) is required.</li><li>
Satellite and Wireless Internet service is NOT allowed for this role.</li><li>
A dedicated space lacking ongoing interruptions to protect member PHI / HIPAA information</li></ul>
#LI-Remote
Travel: While this is a remote position, occasional travel to Humana's offices for training or meetings may be required.
Scheduled Weekly Hours
40
Pay Range
The compensation range below reflects a good faith estimate of starting base pay for full time (40 hours per week) employment at the time of posting. The pay range may be higher or lower based on geographic location and individual pay will vary based on demonstrated job related skills, knowledge, experience, education, certifications, etc. 

$97,900 - $133,500 per year 

This job is eligible for a bonus incentive plan. This incentive opportunity is based upon company and/or individual performance.
Description of Benefits
Humana, Inc. and its affiliated subsidiaries (collectively, &ldquo;Humana&rdquo;) offers competitive benefits that support whole-person well-being. Associate benefits are designed to encourage personal wellness and smart healthcare decisions for you and your family while also knowing your life extends outside of work. Among our benefits, Humana provides medical, dental and vision benefits, 401(k) retirement savings plan, time off (including paid time off, company and personal holidays, volunteer time off, paid parental and caregiver leave), short-term and long-term disability, life insurance and many other opportunities.<h1 class="jobSectionHeader"> 
About us 
</h1>
About Humana: Humana Inc. (NYSE: HUM) is a leading U.S. healthcare company. Through our Humana insurance services and our CenterWell healthcare services, we make it easier for the millions of people we serve to achieve their best health &ndash; delivering the care and service they need, when they need it. These efforts are leading to a better quality of life for people with Medicare and Medicaid, families, individuals, military service personnel, and communities at large. Learn more about what we offer at Humana.com and at CenterWell.com. 
 
Equal Opportunity Employer
It is the policy of Humana not to discriminate against any employee or applicant for employment because of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, genetic information, disability or protected veteran status. It is also the policy of Humana to take affirmative action, in compliance with Section 503 of the Rehabilitation Act and VEVRAA, to employ and to advance in employment individuals with disability or protected veteran status, and to base all employment decisions only on valid job requirements. This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment.</div>

Senior Network Engineer

Blackwatch International Corporation

<div>Blackwatch International Corporation (Blackwatch) is a small business founded in 2010 and dedicated to supporting Federal business and national security objectives. Our headquarters are in McLean, VA, with satellite offices in Sacramento, CA.
Blackwatch invests in innovation and quality for our customers and staff, holding corporate-level ISO 9001:2015, ISO/IEC 27001:2013, and ISO/IEC 20000-1:2018, CMMC Level 2, and CMMI Level 3 certifications. We are a leading provider of information technology (IT) infrastructure, cybersecurity, DevSecOps, data exploitation, and engineering services, specializing in large and complex projects. Blackwatch is dedicated to growth and offers a dynamic working environment with multiple opportunities for advancement.
Position Location: Alexandria (On-site, Virtual, and Telework support)
Position Type: Full-Time
Years of Experience: 8+ years
Security Clearance: Ability to obtain Public Trust (or higher if required)
US Citizenship Required: Yes, with Real ID
Position Description
The Senior Network Engineer positions will be part of 70-person End User Services and Audio Visual (AV) Collaboration Support team supporting the United States Patent and Trademark Office (USPTO), an agency within the U.S. Department of Commerce, responsible for granting U.S. patents and registering trademarks, playing a vital role in fostering innovation, protecting intellectual property, and supporting economic growth. To carry out this mission, USPTO depends on a modern, secure, and highly available information technology environment that supports a geographically dispersed workforce, extensive telework capabilities, and high-demand public-facing systems. The Office of the Chief Information Officer (OCIO) is central to this effort, delivering reliable, innovative, and secure IT services that enhance productivity, communication, and collaboration for leadership, employees, and external stakeholders.
The Senior Network Engineer positions support the USPTO OCIO mission by providing comprehensive End User Services and Audio Visual (AV) Collaboration Support across enterprise environments, ensuring seamless IT service delivery while advancing modernization and improving the overall user experience. The scope includes support for desktop services across headquarters, regional, and satellite offices, warehouse operations, telework services, and AV and collaboration capabilities, creating a cohesive and resilient IT ecosystem for both on-site and remote users. This project is focused on maintaining reliable operations through the sustainment and enhancement of legacy systems while also enabling modernization through the introduction of innovative technologies and solutions that align with evolving mission needs. The End User Services and Audio Visual (AV) Collaboration Support project supports 12,895 teleworkers in which 96.14% of USPTO employees are teleworking at least one day a week with 11,405 of those teleworkers working from home five days per week. USPTO maintains over 17,800 laptop/desktop computers for employees and on-site support contractors, and over 26,800 printers. The warehouse contains over 190 different IT items with approximately 11,000 serialized items and a total of 20,000 items currently stored.
The Senior Network Engineer is responsible for the design, configuration, installation, testing, maintenance, and troubleshooting of enterprise network infrastructure supporting USPTO end-user services, including LAN, WAN, wireless connectivity, and Voice and Video Teleconferencing (VTC) systems. This role ensures reliable, secure, and high-performing network connectivity across headquarters, regional offices, telework environments, and field locations in support of mission-critical operations. The Senior Network Engineer works within a service-oriented, Agile delivery environment and may operate in a supervisory capacity as needed to support field technicians and coordinate network support activities.
In alignment with the broader End User Services and Operations Support (EUSOS) program, the Senior Network Engineer plays a key role in enabling seamless connectivity between servers, end-user devices, collaboration platforms, and cloud-based services. This position supports both proactive network optimization and reactive incident resolution, ensuring minimal downtime and rapid restoration of services in accordance with established service level agreements (SLAs). The Network Engineer collaborates closely with field engineers, desktop support teams, and enterprise stakeholders to deliver integrated IT and communications solutions that enhance productivity, reliability, and user experience.
The Senior Network Engineer is responsible for configuring and testing network devices such as routers, switches, hubs, gateways, and related infrastructure components to ensure proper operation and interoperability across systems. This includes staging and validating SOHO routers and other network equipment for deployment, supporting equipment swaps, and ensuring successful integration into existing environments. The role also involves troubleshooting complex network issues, including connectivity problems related to Active Directory, DNS, DHCP, and other core services, while applying structured diagnostic methods and root cause analysis to identify and resolve issues efficiently.
This position provides technical assistance and end-user support via phone, email, remote tools, or in-person interaction, responding to network-related incidents and service requests. The Senior Network Engineer gathers detailed user input, asks targeted diagnostic questions, and applies technical expertise to quickly identify and resolve problems. In addition, the role generates operational reports, documents service activities, and provides recommendations for network improvements and infrastructure enhancements to management for review and planning purposes.
Responsibilities<div><ul><li>
Install, configure, test, and maintain network infrastructure including routers, switches, hubs, gateways, and related devices</li><li>
Support LAN, WAN, wireless, and Voice/Video Teleconferencing (VTC) connectivity across enterprise environments</li><li>
Configure and validate network components to ensure secure and reliable connectivity between servers, endpoints, and cloud services</li><li>
Stage, test, and deploy SOHO routers and other network equipment for installation, replacement, and troubleshooting activities</li><li>
Troubleshoot complex network issues, including connectivity problems involving Active Directory, DNS, DHCP, and related services</li><li>
Analyze network performance and traffic to identify root causes of outages, latency, or connectivity degradation</li><li>
Provide technical support to end users via phone, email, remote tools, and in-person assistance for network-related issues</li><li>
Gather and analyze user-reported issues, ask diagnostic questions, and implement effective resolution strategies</li><li>
Coordinate with field engineers, desktop support teams, and infrastructure teams to resolve incidents and implement changes</li><li>
Perform network testing, validation, and quality assurance on installed or replaced equipment</li><li>
Maintain accurate documentation of network configurations, procedures, troubleshooting steps, and incident resolutions</li><li>
Generate reports and service request documentation for management review, analysis, and operational tracking</li><li>
Monitor, respond to, and resolve network-related incidents and service requests in accordance with SLAs</li><li>
Support network equipment lifecycle management, including installation, upgrades, replacements, and decommissioning</li><li>
Participate in root cause analysis (RCA) for network outages and recurring issues, implementing corrective actions</li><li>
Recommend improvements to network architecture, performance, and reliability based on analysis and operational trends</li><li>
Collaborate with cross-functional teams and vendors to support deployments, upgrades, and issue resolution</li><li>
Promote knowledge sharing and maintain technical documentation and best practices across support teams</li><li>
Support Agile team operations and participate in continuous improvement initiatives</li><li>
Provide leadership or supervisory support for network-related tasks and field operations as needed</li></ul></div>
Minimum Qualifications<div><ul><li>
Bachelor&rsquo;s degree in Information Technology, Computer Science, Engineering, or related technical field required (Master&rsquo;s degree preferred)</li><li>
Minimum of 8+ years of progressive experience in network engineering, infrastructure support, or enterprise IT environments (or 6+ years with a Master&rsquo;s degree)</li><li>
Demonstrated experience providing technical leadership on major network engineering tasks and mission-critical infrastructure initiatives</li><li>
Expert-level knowledge of enterprise network architecture, including LAN, WAN, routing, switching, and wireless technologies</li><li>
Advanced experience configuring, installing, and maintaining network devices such as routers, switches, gateways, and firewalls</li><li>
Strong experience supporting enterprise services including DNS, DHCP, Active Directory integration, and authentication services</li><li>
Proven ability to troubleshoot complex, high-impact network issues in large-scale enterprise environments</li><li>
Experience supporting Voice over IP (VoIP) and Video Teleconferencing (VTC) systems and related infrastructure</li><li>
Experience staging, testing, deploying, and validating network equipment, including SOHO and enterprise-grade devices</li><li>
Ability to analyze network performance, identify root causes of outages, and implement corrective and preventive solutions</li><li>
Experience leading or overseeing junior and mid-level engineers in operational or project-based work</li><li>
Strong experience working in IT service management environments using ticketing systems (e.g., SMP, ServiceNow, or equivalent)</li><li>
Demonstrated ability to develop technical documentation, network diagrams, reports, and operational procedures</li><li>
Experience generating executive-level reports and providing technical recommendations to management</li><li>
Strong communication skills with the ability to engage technical and non-technical stakeholders effectively</li><li>
Experience participating in or leading root cause analysis (RCA) for critical network incidents and outages</li><li>
Proven ability to work independently while establishing goals, priorities, and technical direction aligned to mission objectives</li><li>
Experience working in Agile or cross-functional enterprise IT environments</li><li>
U.S. Citizenship required</li><li>
Ability to obtain and maintain a Public Trust clearance or higher</li></ul></div>
Preferred<div><ul><li>
Industry certifications such as CCNP, CCIE, Network+, Security+, or equivalent advanced networking certifications</li><li>
Experience supporting federal government or highly regulated enterprise environments</li><li>
Experience with network monitoring, automation, or performance management tools</li><li>
Experience supporting large-scale VTC and collaboration infrastructure in mission-critical environments</li></ul></div></div>

Power3 Solutions

<div>Tulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. Tulzi offers secure network systems and software engineering solutions in both public and private sectors. With certified expert consulting the team at Tulzi is able to address the customers mission, and follow through in the systems development life cycle.
Clearance Required: TS/SCI 
Title: Senior Seceurity Engineer 
Location: Columbia, MD 
 
The Senior Security Engineer serves as a technical leader responsible for architecting, engineering, and sustaining enterprisegrade security solutions across complex IT environments. This role is deeply handson and requires the ability to design, build, implement, operate, and optimize security technologies that protect missioncritical systems. The Senior Security Engineer provides technical direction, mentors junior engineers, and drives security innovation across the organization. The engineer leads advanced research, evaluation, and integration of emerging security technologies to strengthen the enterprise security posture. They ensure that system hardware, operating systems, software, and security controls adhere to organizational policies, compliance frameworks, and mission objectives. 
 
Key responsibilities include: 
 Architect, implement, and maintain enterprise security controls and infrastructure 
components across Windows, Linux, and virtualized environments 
 Lead the design, deployment, configuration, and lifecycle management of 
endpoint hardening and security tools (e.g., Ivanti, WSUS, Trellix, Tenable) 
 Oversee patch management processes, including OS updates, thirdparty 
software updates, and administrative tool upgrades 
 Provide expertlevel troubleshooting, rootcause analysis, and performance 
optimization for complex security and infrastructure issues 
 Evaluate, recommend, and lead the adoption of new security tools, technologies, 
and methodologies 
 Develop and maintain security documentation, including SSPs, RMF artifacts, 
engineering diagrams, and operational procedures 
 Design and implement security requirements within enterprise business 
processes and technical architectures 
 Support vulnerability assessments, interpret results, and develop riskbased 
mitigation strategies 
 Conduct system hardening, configuration baselining, and compliance scanning to 
ensure adherence to security standards 
 Support and guide incident response activities, including forensic analysis and 
containment strategies 
 Collaborate with crossfunctional teams to ensure security is embedded 
throughout system lifecycles 
 Mentor and provide technical leadership to junior and midlevel security engineers 
 Contribute to longterm security strategy, capability development, and continuous 
improvement initiatives 
 Support a diverse set of enterprise networks and mission environments as part of 
a highperforming security engineering team 
Minimum Requirements (Knowledge, Skills, and Abilities): 
 8+ years of progressive experience designing, engineering, and securing 
enterprisescale IT systems across complex network environments 
 Expertlevel knowledge in architecting, deploying, and maintaining security 
infrastructure, including endpoint protection, vulnerability management, 
configuration management, and enterprise hardening solutions 
 Demonstrated experience leading security engineering initiatives, including 
implementing advanced security controls, designing secure configurations, and 
overseeing patch and update strategies for Linux and Windows environments 
 Extensive handson experience with enterprise security tools, such as Ivanti, 
WSUS, Trellix, Tenable, or equivalent platforms, including tool integration, 
optimization, and lifecycle management 
 Strong understanding of security frameworks and compliance requirements, such 
as NIST RMF, NIST 80053, STIGs, or equivalent federal/DoD standards 
 Demonstrated ability to lead complex troubleshooting efforts, perform rootcause 
analysis, and drive longterm remediation strategies across enterprise systems 
 Experience mentoring junior engineers, providing technical leadership, and 
contributing to team capability development 
 Required IAT/Managementlevel certification: one or more of the following &mdash; 
CASP+, CISSP, or equivalent seniorlevel certification 
 Required vendor certification in one or more relevant technologies (e.g., 
Microsoft, VMware, Cisco, NetApp, Pure Storage, HP, Dell, Linux+, Red Hat, 
HBSS, ACAS). Candidates without an active certification must obtain at least one 
within 6 months of hire 
 
Clearance Required: 
 TS/SCI 
 
Minimum Years of Experience: 8+ 
Required Certifications: (if needed) 
 Required IAT Certs: one or more of the following: CASP, CISM, CISSP, or 
equivalent senior-level certification 
 Required vendor certification in one or more relevant technologies (e.g., 
Microsoft, VMware, Cisco, NetApp, Pure Storage, HP, Dell, Linux+, Red Hat, 
HBSS, ACAS). Candidates without an active certification must obtain at least one 
within 6 months of hire 
 
Preferred Qualifications: 
 Bachelors Degree 
 Experience working within a SOC 
 
Benefits:
We offer a competitive benefits and compensation package and FUN place to work! Benefits include, but not limited to:
Health and Wellness Benefits
<ul><li>Medical Insurance (three CareFirst healthcare plans to choose from, Dental and Vision Insurance, 75% covered for employee/ 50% per dependant
</li>
<li>Health Savings Account (HSA) contributions $1500 individual/ $3000 family
</li>
</ul>Personal Insurance Benefits
<ul><li>Company-paid Life Insurance and AD&amp;D coverage
</li>
<li>Company-paid Short-term and Long-term Disability Insurance
</li>
</ul>Paid Leave
<ul><li>Employees receive 20 days of vacation/10 holidays built into hourly rate/ 5 days of sick time (currently used for snow, jury, bereavement)
</li>
</ul>Retirement
<ul> <li>Pre-tax 401k program including 6% company match
</li>
<li>100% fully vested from eligibility date
</li>
</ul><ul><li>Eligible after 90 days of employment</li></ul>
Company provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, pregnancy, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.</div>

Senior Security Engineer- -TS/SCI w/ Poly Security Clearance Required

General Dynamics Information Technology

<div><div><div>Your Impact
Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.
Job Description<div>
Advance how our customers operate while you advance your career. Join GDIT as a Senior Systems Engineer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.
As a Senior Systems Engineer, the work you&rsquo;ll do at GDIT will be impactful to the mission of the Army's Network Enterprise Technology Command. You will play a crucial role in providing Information Technology System Engineering, Capability Management, Tier III and Service Support Management, and Risk Management Framework support to employ Enterprise Protected Domain Name Services to specified Non-Classified Internet Protocol Router Network (NIPRNET), Secret Internet Protocol Router Network (SIPRNET), and Deployed Forces (DF) portion of the Department of Defense Information Network (DOWIN).
Selected candidate will support operations onsite at our Fort Huachuca, AZ facility. 
 
MEANINGFUL WORK AND PERSONAL IMPACT:<ul><li>
Lead/Manage/Support by performing all procedures necessary to ensure the security of information systems assets and to protect systems from intentional or inadvertent access or destruction.</li><li>
Collaborate with your peers to provide planning, design, development, engineering, integration, and technical and operational support to the ADCNOMS project and Army DNS systems.</li><li>
Drive success by delivering comprehensive technical, logistical, programmatic, accreditation, configuration, maintenance, and operational oversight for EP‑DNS, including scheduling, testing, integration, validation, documentation updates, and service reporting.</li><li>
Ensure the integrity and accuracy of system configurations by maintaining complete and current configuration management records.</li><li>
Provide Tier III support for EP‑DNS and DNS‑related infrastructure, performing advanced troubleshooting and service restoration as needed.</li><li>
Conduct cybersecurity analysis and support RMF compliance activities, including actions required for IAVA‑related findings.</li><li>
Coordinate, review, and maintain system documentation and provide clear guidance on the use and administration of EP‑DNS capabilities for personnel at all levels.</li><li>
Utilize your expertise across Unclassified and Classified networks, including DNSSEC signing and validation, Infoblox DDI configuration, grid management, and IPAM workflows.</li><li>
Demonstrate strong ability in auditing and troubleshooting ISC BIND, researching IAVM/IAVA vulnerabilities, and developing shell scripts to automate data‑gathering tasks in laboratory environments.</li><li>
Install and configure test‑environment components such as Solaris‑based DNS servers, Oracle database servers, Infoblox and SafeNet appliances, and JRE environments. 
Provide Tier III DNS support, performing advanced troubleshooting, root cause analysis, and validation of mission‑system changes.</li><li>
Support operational oversight, service reporting, and thorough documentation within enterprise ticketing systems and audit logs.</li><li>
Demonstrate familiarity with auditing large‑scale TCP/IP schemes and experience with Hyper‑V, VMware, meta‑database environments, PowerShell scripting, the Microsoft Office suite, and Microsoft Visio.</li></ul> 
WHAT YOU&rsquo;LL NEED TO SUCCEED (Required): 
Bring your technology expertise and drive for innovation to GDIT. The Senior Systems Engineer must have:
Education: Bachelor&rsquo;s Degree. An additional 4 years of experience may be substituted in lieu of degree.
Security Clearance: Active Secret required. In addition, selected candidate must be able to obtain a Top Secret/SCI clearance post hire.
Experience: 5+ years of related experience.
Certification: DoW 8570 IAT Level III Certification and Computing Environment Certification.
Role Requirements:<ul><li>
Experience in System Cybersecurity Management, RMF control implementation, and compliance validation.</li><li>
Experience applying mitigation actions from security findings and maintaining configuration baselines across EP‑DNS lab and production systems.</li><li>
Demonstrated ability to maintain accurate and current system documentation, diagrams, SOPs, and configuration records.</li><li>
Ability to support full-time onsite work schedule.</li></ul>
GDIT IS YOUR PLACE: 
At GDIT, the mission is our purpose, and our people are at the center of everything we do.<ul><li>
Growth: AI-powered career tool that identifies career steps and learning opportunities.</li><li>
Support: An internal mobility team focused on helping you achieve your career goals.</li><li>
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off.</li><li>
Flexibility: Full-flex work week to own your priorities at work and at home.</li><li>
Community: Award-winning culture of innovation and a military-friendly workplace</li></ul> 
OWN YOUR OPPORTUNITY:<ul><li>
Explore an enterprise IT career at GDIT and you&rsquo;ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.</li></ul>
</div></div><div><div><div>Work Requirements</div></div><div></div><div><div>
Years of Experience<div>
5 + years of related experience</div><ul><li>may vary based on technical training, certification(s), or degree</li></ul></div><div></div><div>
Certification
Certified Information Systems Auditor (CISA) | Information Systems Audit and Control Association (ISACA) - Information Systems Audit and Control Association (ISACA)
Certified Network Professional Enterprise (CCNP) | Cisco - Cisco
CompTIA SecurityX CE | CompTIA - CompTIA
Certified Information Systems Security Professional (CISSP) | International Information System Security Certification Consortium (ISC2) - International Information System Security Certification Consortium (ISC2)</div><div></div><div>
Travel Required<div>
Less than 10%</div></div><div></div><div>
Citizenship<div>
U.S. Citizenship Required</div></div></div></div></div><div>
Salary and Benefit Information<div>
The likely salary range for this position is $88,130 - $108,100. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. 
View information about benefits and our total rewards program.</div>
About Our Work<div>
We are GDIT. A global technology and professional services company that delivers technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across over 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber and application development. Together with our customers, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.</div><div>
Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.</div><div>
Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans</div></div></div>

Senior Systems Engineer - Enterprise Protected Domain Name Service

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