senior network security architect

Codvo.ai

<div><div><div>Senior Cloud Network Security Engineer (Category &ndash; Architect)
Sector: Oil and Gas
Department: IT Infrastructure &amp; Security
Location: Doha, Qatar 
Company Overview:
At Codvo, software and people transformations go hand-in-hand. We are a global empathy-led technology services company. Product innovation and mature software engineering are part of our core DNA. Respect, Fairness, Growth, Agility, and Inclusiveness are the core values that we aspire to live by each day. 
We continue to expand our digital strategy, design, architecture, and product management capabilities to offer expertise, outside-the-box thinking, and measurable results. 
Job Description 
The Senior Cloud &amp; Network Security Engineer will be responsible for designing, implementing, and safeguarding the company&rsquo;s core digital and network infrastructure through robust architecture, secure connectivity, and proactive defence strategies. The role encompasses network design, routing and switching, firewalls, load balancers (LB), web application firewalls (WAF), VPNs, and hybrid cloud security across on-premises and cloud (Azure, GCP) environments. 
The engineer will ensure high availability, resilience, and compliance of all network and security systems, providing expert guidance to cross-functional teams and ensuring alignment with corporate cybersecurity and infrastructure standards. 
Key Responsibilities
Infrastructure &amp; Network Security Management<ul><li>Design, deploy, and manage secure enterprise network architectures spanning on-premises data centers, field assets, and multi-cloud environments (Azure and GCP).</li><li>Configure and maintain routing and switching infrastructure, including VLANs, BGP, OSPF, and WAN/LAN connectivity.</li><li>Manage enterprise firewalls, VPNs, load balancers (F5, Azure Application Gateway), WAFs, and IDS/IPS systems to ensure end-to-end network security.</li><li>Implement and enforce network segmentation, access control lists (ACLs), and zero trust network policies to secure sensitive environments.</li><li>Ensure availability, performance, and scalability of network services through continuous monitoring, optimization, and proactive capacity planning.</li><li>Integrate network telemetry and logs into enterprise SIEM platforms to support threat detection, visibility, and response.</li><li>Collaborate with DevOps, Cloud, and Infrastructure teams to embed security principles within all network and infrastructure deployments.</li><li>Ensure compliance with internal cybersecurity frameworks and external standards such as ISO 27001, NIA Qatar, and energy sector security mandates.</li></ul>
Cloud Security (Azure &amp; GCP)<ul><li>Design and enforce cloud network topologies and security configurations using native controls such as Azure Virtual Networks, Network Security Groups (NSGs), Firewalls, Private Endpoints, and Google VPC Service Controls.</li><li>Secure interconnectivity between on-premises and cloud through ExpressRoute, VPN gateways, and hybrid peering.</li><li>Integrate security-by-design practices into infrastructure-as-code (IaC) and DevSecOps pipelines to ensure consistent and automated network provisioning.</li><li>Manage cloud-native load balancing, WAF, DDoS protection, and application gateways for secure application delivery.</li></ul> 
Threat Detection, Incident Response &amp; Compliance<ul><li>Monitor and analyze network traffic to detect anomalies, intrusions, and advanced threats.</li><li>Respond to network security incidents, coordinate investigation and remediation efforts, and implement corrective actions.</li><li>Maintain configuration baselines, patch management routines, and ensure full compliance with corporate and regulatory security standards.</li><li>Perform periodic risk assessments, vulnerability scans, and network penetration reviews to identify and mitigate risks.</li></ul>
Advisory &amp; Architecture Support<ul><li>Participate in design reviews of new digital transformation projects, ensuring alignment with network and security architecture standards.</li><li>Provide technical leadership and mentorship to network and infrastructure teams, fostering a culture of secure design and continuous improvement.</li><li>Advise stakeholders on network resilience, redundancy, and secure connectivity strategies across all business units.</li></ul> 
Required Skills and Qualifications:<ul><li>Bachelor's degree in Computer Engineering, Cybersecurity, Information Systems, or related field.</li><li>10+ years of experience in network and infrastructure security within large-scale enterprise IT or OT environments.</li><li>Proven expertise in:</li></ul>
o Routing and switching (Cisco, Juniper, or equivalent)
o Enterprise firewalls (Palo Alto, Fortinet, Cisco ASA)
o Load balancers (F5, Azure Application Gateway, NGINX Plus)
o Web Application Firewalls (WAF) and reverse proxy systems
o VPN, IPSec, SSL/TLS, and Zero Trust network architectures
o Cloud networking and security (Azure, GCP)
o Network automation (Terraform, Ansible, ARM templates)<ul><li>Experience with SIEM, SOAR, and threat intelligence platforms (e.g., Azure Sentinel, Chronicle, Splunk).</li><li>Excellent problem-solving skills and ability to lead incident response efforts under pressure.</li></ul>
Technical Proficiencies<ul><li>Enterprise Firewalls &amp; Security Appliances: Palo Alto, Fortinet, Cisco ASA</li><li>Load Balancers &amp; WAF: F5, Azure Application Gateway, Cloudflare, GCP equivalents</li><li>Routing &amp; Switching: Cisco, Juniper, Layer 3 segmentation, BGP/OSPF</li><li>Cloud Security Tools: Azure Security Center, Microsoft Defender for Cloud, GCP Security Command Center</li><li>IAM &amp; Access Control: Azure AD Conditional Access, GCP IAM, MFA, SSO</li><li>Automation &amp; IaC: Terraform, Ansible, ARM templates</li></ul>
Preferred Qualifications<ul><li>Professional certifications such as CISSP, CCSP, Cybersecurity Architect Expert (SC-100) or AZ-500 (Azure Security Engineer) or Google Cloud Security Engineer</li><li>Experience in oil &amp; gas, energy, utilities, or critical infrastructure sectors</li><li>Familiarity with OT (Operational Technology) environments and ICS/SCADA systems</li><li>Exposure to multi-cloud security strategy and cloud-native DevSecOps practices</li></ul></div> 

<div><div>Sub-Department:</div>
<div>Business analyst</div></div></div></div>

Senior Cloud Network Security Engineer

BOEING

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.We are seeking a seasoned Senior Aircraft Network Architect to join our Boeing Defense, Space & Security (BDS) team in Hazelwood or Berkeley, MO.The ideal candidate will lead the design, integration, and verification of complex aircraft communications and onboard network solutions for military and special-mission platforms.This role requires deep system architecture experience, hands on knowledge of avionics networks, strong stakeholder leadership, and the ability to translate operational requirements into robust, secure, and maintainable network designs.Key Responsibilities:<ul><li>Lead architecture, design, and lifecycle planning for onboard aircraft networks including data, voice, video, timing, and mission systems.</li><li>Define high-level and detailed network architectures, interfaces, protocols, and topology for fixed- and rotary wing platforms and missionized aircraft.</li><li>Lead requirements decomposition, traceability, and verification activities with systems engineering and software/hardware teams.</li><li>Specify and select network hardware, switches, routers, gateways, line-replaceable units (LRUs), and RF/C4ISR interfaces.</li><li>Ensure cyber security and information assurance compliance across network designs (segmentation, encryption, key management, DoD/industry standards).</li><li>Develop and maintain architecture artifacts: diagrams, interface control documents (ICDs), data flow models, fault management plans, and test cases.</li><li>Collaborate with Avionics, Systems Integration, Flight Controls, Mission Systems, and Program Management to align network architecture with overall system objectives.</li><li>Provide technical leadership during integration, lab testing, flight test, and fielding; troubleshoot complex network issues.</li><li>Mentor junior engineers and lead technical reviews, trade studies, and design reviews.</li><li>Support proposals, cost estimates, and technical briefs for customers and internal stakeholders.</li></ul> Basic Qualifications (Required Skills and Experience): <ul><li>Bachelor of Science degree in Engineering, Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement </li><li>10+ years of experience in aircraft or aerospace network architecture, avionics, or complex embedded networking systems.</li></ul> Preferred Qualifications (Desired Skills and Experience): <ul><li>Master's degree in relevant field.</li><li>Prior experience working on aircraft programs, ISR, C4ISR, missionized platforms, or similar defense aviation projects.</li><li>Familiarity with software-defined networking (SDN), Time-Sensitive Networking (TSN), ARINC 825 (CAN in avionics), and publish/subscribe middleware (DDS).</li><li>Hands-on experience with network test equipment, lab automation, and simulation tools.</li><li>Experience developing and reviewing ICDs, safety assessments (FMEA/FTA), and reliability analyses.</li><li>Strong background in IP networking, routing, switching, VLANs, multicast, QoS, timing/synchronization (PTP/NTP), and network management.</li><li>Experience with cyber security practices and standards relevant to defense systems (e.g., DoD RMF, STIGs, NIAP, AES, IPsec).</li><li>Proven experience in system-level integration, ICD development, and support of verification & validation (V&V) including lab and flight test.</li><li>Excellent written and verbal communication skills; ability to present architecture to technical and non technical stakeholders.</li></ul>This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. Shift: This position is for 1st ShiftRelocation:This position offers relocation based on candidate eligibility. Note: Basic relocation will be offered for eligible internal candidates.Drug Free Workplace:Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.Pay & Benefits:At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.Pay is based upon candidate experience and qualifications, as well as market and business considerations. Summary pay range: $143,650 - $194,350 Applications for this position will be accepted until Nov. 13, 2025 Export Control Requirements: This position must meet export control compliance requirements. To meet export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. 120.15 is required. "U.S. Person" includes U.S. Citizen, lawful permanent resident, refugee, or asylee. Export Control Details: US based job, US Person required Education Bachelor's Degree or Equivalent RequiredRelocation This position offers relocation based on candidate eligibility.Security Clearance This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)Visa Sponsorship Employer will not sponsor applicants for employment visa status.Shift This position is for 1st shift Equal Opportunity Employer:Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

Senior Aircraft Network Architect

Halan - حالا

<div>
 
 
 Job Overview:
 
 
 
 
 
 
 We are looking for a
 
 Senior Network Security Engineer
 
 to ensure a reliable, secure, and efficient data
 
 
 communications network. In this role, you will be responsible for deploying, configuring,
 
 
 maintaining, and monitoring network infrastructure to support seamless operations.
 
 
 
 
 
 
 Key Responsibilities:
 
 
 
 
 
 
 &bull;Support, configure, maintain, and upgrade network systems.
 
 
 &bull;Monitor security logs and firewalls to identify and mitigate threats.
 
 
 &bull;Ensure network security, connectivity, and performance optimization.
 
 
 &bull;Troubleshoot and Configure Cisco and Dell Switches (L2/L3), NAC solutions (Forti NAC),
 
 
 and firewalls (Palo Alto, FortiGate, Forcepoint).
 
 
 &bull;Implement and manage and operation Firewalls (Forcepoint, Palo Alto and FortiGate)
 
 
 &bull;Working with IP routing protocols: OSPF, EIGRP and BGP, configuring routing with
 
 
 automatic fail-over solutions between connections.
 
 
 &bull;Implement and Troubleshoot Remote Access Solutions: IPsec, SSL VPN.
 
 
 &bull;Implement and troubleshoot site to site VPNs between DC and Clients.
 
 
 &bull;Hardening Network devices according to PCI requirements.
 
 
 &bull;Remediate any vulnerabilities discovered related to network scans to match PCI DSS.
 
 
 &bull;Configure and manage WAF, LTM (F5), VPNs, and IPS/IDS solutions.
 
 
 &bull;Configuring various advanced WAF and ADC features (Profiles, monitors, Load balancing, HTTP Redirects, SSL offloading, Outbound data theft protection, DDOS Protection, Session persistence, Cloaking, iRules and Analytics polices).
 
 
 &bull;Manage user accounts, permissions, and network policies.
 
 
 &bull;Monitor system utilization, performance, and capacity planning.
 
 
 &bull;Configure and troubleshoot and Manage Cisco CUCM.
 
 
 
 
 
 
 Requirements:
 
 
 
 
 
 
 &bull;3 to 5 years of experience in network security.
 
 
 &bull;CCNP, NSE certifications are Plus
 
 
 &bull;Strong knowledge of EPP, PAM, EDR, and Sandbox technologies.
 
 
 &bull;A proactive and responsible professional with a strong problem-solving mindset.
 
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Senior Network Security Engineer

92Techno

We are seeking a highly skilled Senior Network Security Engineer with deep expertise in firewall security, routing, and cloud networking. The ideal candidate will have expert-level proficiency in Palo Alto Firewalls, Cisco security solutions, AWS/Azure networking, and complex BGP/OSPF environments. This role involves managing next-gen security features, VPNs, secure DNS, and enterprise-grade load balancing across a multi-cloud and hybrid infrastructure.Key Responsibilities:Firewall &amp; Security Management:<ul><li>Expert-level management of Palo Alto Firewalls, including advanced features such as:</li><li>URL Filtering</li><li>External Dynamic Lists (EDL)</li><li>Antivirus &amp; Vulnerability Protection</li><li>File Blocking</li><li>SSL Decryption</li><li>Active Directory Integration for user-based policies</li><li>Hands-on experience with Palo Alto Panorama for centralized firewall management, configuration, and monitoring.</li><li>Cisco Umbrella administration for secure DNS and URL filtering.</li><li>Cisco ASA and Cisco Firepower management, implementing URL, Threat, and Malware protection policies.</li><li>Cisco ISE administration for device authentication and access control policies.</li></ul>Routing &amp; VPN Management:<ul><li>Managing complex BGP and OSPF environments, ensuring optimal routing across enterprise networks.</li><li>Managing VTI-based VPN tunnels using Cisco and Palo Alto Firewalls for secure site-to-site connectivity.</li><li>Understanding of certificate chains and their role in SSL decryption, troubleshooting certificate-related firewall issues.</li></ul>Load Balancing &amp; DNS:<ul><li>Big-IP F5 LTM and DNS administration, ensuring high availability and optimal traffic distribution across enterprise applications.</li></ul>Cloud &amp; Hybrid Networking:<ul><li>AWS and Azure networking management, including VPC, VNets, and security groups.</li><li>On-Prem to Cloud connectivity, implementing and managing Direct Connect (AWS) and ExpressRoute (Azure).</li></ul>Data Center Networking:<ul><li>Cisco Nexus switching expertise, including advanced data center networking features.</li></ul>Qualifications &amp; Experience:<ul><li>8+ years of hands-on experience in network security and firewall administration.</li><li>Expertise in Palo Alto Networks firewalls and Panorama management.</li><li>Strong knowledge of Cisco security products, including ASA, Firepower, Umbrella, and ISE.</li><li>Advanced experience with BGP, OSPF, and VPN technologies in enterprise environments.</li><li>F5 LTM and DNS expertise for application and traffic management.</li><li>Cloud networking experience in AWS and Azure, including hybrid connectivity solutions.</li><li>Proficiency in Cisco Nexus switching for data center environments.</li></ul>Certifications (Preferred but not Required):<ul><li>Palo Alto Networks PCNSE (Palo Alto Networks Certified Network Security Engineer)</li><li>Cisco CCNP Security or CCIE Security</li><li>AWS Certified Advanced Networking &ndash; Specialty</li><li>F5 Certified Technology Specialist (LTM, DNS)</li></ul>Job Type: Full-timePay: Rs300,000.00 - Rs350,000.00 per monthWork Location: In person

DTS Solution

Job Description 
 
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 As a Senior Network Security Consultant for Cybersecurity Engineering division, you will play a critical role in our cybersecurity efforts. You will be responsible for the complete post-sales project lifecycle for network and security solutions, from initial design, implementation, deployment, and integration. Additionally, you will have the unique opportunity to engage in pre-sales activities, prepare technical proposals, and respond to Requests for Proposals (RFPs). This role requires a deep understanding of network and security technologies, hands-on experience with leading solutions, and the ability to collaborate effectively with clients and internal teams. </div>
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Expertise in Next-Generation Firewalls (NGFW), SDWAN, ADC, and Web Application security Technologies: Demonstrate a strong command of NGFW, SDWAN, ADC, and WAF technologies, leveraging this knowledge to design and implement robust security solutions. </li>
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Certification and Proficiency: Possess valid advance certifications and hands-on experience with Fortinet and Palo Alto Networks solutions (excluding sales certifications such as NSE1-3). </li>
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Comprehensive Security Knowledge: Exhibit a deep understanding and practical experience with technologies including IPSec, SSL VPN, Sandboxing, Forward and Reverse Proxy, NAT, syslog, DNS, Network Access Control (NAC), and cloud computing platforms (AWS/Azure). </li>
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Network Expertise: Apply knowledge of data center network topology and architecture, routing, switching, routing protocols, MPLS, load balancers, and Software-Defined Networking (SDN). </li>
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Solution Planning and Design: Collaborate with clients to plan and design solutions that align with business and project requirements. </li>
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Customer Engagement: Independently engage with clients to gather and comprehend their specific requirements. Confidently lead presentations to clients. </li>
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Support and Documentation: Prepare High-Level Designs (HLD), Low-Level Designs (LLD), and migration documents related to projects. </li>
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Compliance and Auditing: Conduct compliance and security assessment in IT environments and audit configurations of both on-premises and cloud firewalls, WAF, ADC and landing zone. </li>
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Flexibility: Be available to work beyond standard business hours and on weekends as needed, depending on project criticality and support requirements. </li>
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Collaboration: Collaborate effectively with team members, sharing knowledge and expertise. </li>
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Technical Documentation: Create and maintain technical documentation related to network and security devices. </li>
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Metric Development: Assist in developing meaningful network metrics and performance baselines for clients. </li>
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Bachelor's degree in a relevant field (or equivalent experience). </li>
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5+ years of professional experience in network security consulting. </li>
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Strong knowledge and experience with NGFW, ADC, WAF, and related technologies. </li>
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Valid advance certifications in Fortinet and Palo Alto Networks solutions. </li>
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Proficiency in IPSec, SSL VPN, Sandboxing, Proxy, NAT, syslog, DNS, NAC, and cloud platforms (AWS/Azure). </li>
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Familiarity with data center network architecture, routing, switching, MPLS, load balancers, and SDN. </li>
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Excellent communication and presentation skills. </li>
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Strong analytical and troubleshooting abilities. </li>
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Ability to work independently and collaboratively. </li>
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Certifications such as CISSP, CISM, CCNP Security, or equivalent are a plus. </li>
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 Additional Requirements </div>
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Must possess a valid GCC (Gulf Cooperation Council) driving license. </li>
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Must have an active LinkedIn profile for professional networking and engagement. </li>
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Senior Network Security Consultant

Oman Arab Bank

<div>
 
 
 
 Purpose and Summary
 
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 The assist keeping bank&rsquo;s LAN/WAN Infrastructure and online platforms up, running, and secure as per the guidelines and timelines set by the bank.
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 Key Deliverables
 
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 Maintain the networks infrastructure for the bank services as per the guidelines and timelines set by the bank.
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 Configure networks to support the level of security required within the agreed SLAs
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 Responsible for administering and managing Web Application Firewalls (WAF), Proxy servers, Load Balancers (LB), and Network Firewalls, including configuration, policy enforcement, performance tuning, and ongoing maintenance.
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 Liaise with all departments and branches in networks related installation, maintenance, and security.
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 Assist line manager in the preparation and maintenance of section&rsquo;s related documentations.
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 Oversee the operational technical development of the section as well as getting involved in the development of section&rsquo;s policies, processes, and procedures.
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 Work along with Infrastructure, Architecture, and delivery teams to ensure networks are fully functional and secure.
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 Participate in improving the operational technical standard and competencies with the team.
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 Provide a call support to the networks and 24/7 teams as and when required.
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 Assist and support the implementation of all service management processes including, Change Processes, Service Level Agreement and to ensure all are according to bank&rsquo;s strategic objectives.
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 Adhere to the best practices, especially in Capacity management, Resiliency, Networks patching and upgrading.
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 Ensure all activities are carries out based on bank&rsquo;s policies, processes, and procedures.
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 Participate in Networks related initiatives and projects as assigned or other duties as assigned by line manager.
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 Ensue all related activities are in accordance with bank&rsquo;s policies, procedures, and standards.
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 Participate in other related initiatives and projects as assigned or other duties as assigned by management.
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 Skills/Knowledge
 
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 Managing change in demanding environment.
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 Result Orientation
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 Teamwork skills.
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 Coordination skills.
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 Effective communication skills
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 Strong command in English and Arabic language
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 Product development and management.
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 Experience
 
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 5 to 7 years of experience in Networks technology.
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 Business Understanding
 
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 Experience in design, delivery, operations of networks and connectivity services
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 Manage the critical LAN/WANs
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 Delivering experience in large scale network change programs.
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 Knowledge of bank&rsquo;s policies, processes, and procedures
 
 
 
</div>

Senior Specialist - Network Security

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