senior linux engineer

Dial Edge Telecom

<p><b>Senior DevOps Engineer / Linux System Administrator</b><br/><b>Location:</b> Bahria Enclave, Islamabad<br/><b>Job Type:</b> Full-Time</p><p>Dial Edge Telecom is looking for a highly skilled <b>Senior DevOps Engineer / Linux System Administrator</b> to manage and scale cloud-native, high-availability infrastructures for FinTech and media-focused platforms. The ideal candidate will bring strong hands-on experience with cloud platforms, containerization, CI/CD pipelines, monitoring, security, and high-traffic systems.</p><p>Key Responsibilities</p><p><b>Infrastructure &amp; Cloud Operations</b></p><ul><li>Design, deploy, and maintain high-availability infrastructure on <b>Azure, AWS, and on-prem VMware</b> environments.</li><li>Manage Linux servers (Ubuntu, CentOS, RedHat) including performance tuning, security hardening, and patching.</li><li>Build and maintain hybrid and multi-cloud environments for cost and performance optimization.</li><li>Implement auto-scaling, load balancing, and disaster recovery strategies.</li></ul><p><b>Containerization &amp; Orchestration</b></p><ul><li>Containerize applications using Docker and manage workloads with Kubernetes (EKS), ECS, and Docker Swarm.</li><li>Configure Kubernetes features including RBAC, namespaces, ConfigMaps, Secrets, and ingress controllers.</li><li>Manage microservices deployments and optimize resource utilization.</li></ul><p><b>CI/CD &amp; Automation</b></p><ul><li>Build and maintain CI/CD pipelines using Azure DevOps, Jenkins, GitHub Actions, Bitbucket, or GitLab.</li><li>Automate infrastructure provisioning using Ansible, Terraform, and custom scripts (Bash/Python).</li></ul><p><b>Monitoring, Logging &amp; APM</b></p><ul><li>Implement centralized logging and monitoring using ELK Stack, Prometheus, Grafana, Nagios, Monit, or Checkmk.</li><li>Set up APM and distributed tracing using OpenTelemetry.</li><li>Configure alerts and incident response workflows via PagerDuty, Slack, or equivalent tools.</li></ul><p><b>Security &amp; Access Control</b></p><ul><li>Implement Zero Trust security models with RBAC and SSO (Okta/Auth0).</li><li>Manage SSL/TLS certificates and secure cloud infrastructure via IAM, security groups, WAF, and DNS policies.</li></ul><p><b>Databases &amp; Backend Support</b></p><ul><li>Manage and secure PostgreSQL, MySQL, MongoDB, and Redis databases.</li><li>Implement backup, recovery, and disaster recovery processes.</li><li>Provide L2/L3 support for production systems in high-traffic environments.</li></ul><p><b>Streaming &amp; High-Traffic Systems (Optional / Plus)</b></p><ul><li>Deploy and manage live streaming infrastructures using NGINX-RTMP, FFmpeg, AWS IVS, CloudFront.</li><li>Optimize systems for low-latency streaming and high concurrent user traffic.</li></ul><p>Required Skills &amp; Qualifications</p><ul><li>4&ndash;5+ years of experience as a DevOps Engineer / Linux System Administrator</li><li>Strong expertise in cloud platforms (Azure, AWS, VMware)</li><li>Hands-on experience with Docker, Kubernetes, and CI/CD pipelines</li><li>Strong Linux fundamentals (networking, storage, permissions, LVM, SSH)</li><li>Experience with monitoring, logging, and alerting systems</li><li>Strong scripting skills in <b>Bash and Python</b></li><li>Experience supporting production systems with high availability requirements</li></ul><p>Preferred / Plus</p><ul><li>Experience in <b>FinTech, OTT, or high-traffic consumer platforms</b></li><li>Experience with live streaming systems</li><li>Knowledge of Zero Trust security models</li><li>Experience with Terraform and Infrastructure as Code</li><li>Exposure to Java applications, Tomcat, and microservices architectures</li></ul><p>Education</p><ul><li>Bachelor&rsquo;s degree in Computer Science, Engineering, or a related field</li></ul><p>Why Join Us</p><ul><li>Work on mission-critical, high-scale systems</li><li>Exposure to FinTech and media-intensive platforms</li><li>Opportunity to architect secure, scalable cloud environments</li><li>Collaborative and technically driven engineering culture</li></ul><p>Job Type: Full-time</p><p>Pay: Rs150,000.00 - Rs200,000.00 per month</p><p>Work Location: In person</p>

Senior DevOps Engineer / Linux System Administrator

Canonical

<div>
 You will work across the full Linux stack from kernel through networking, virtualization and graphics to optimise Ubuntu, the world's most widely used Linux desktop and server, for the latest silicon.
 <br/>
 <br/>
 Our teams partner with specialist engineers from major silicon companies to integrate next-generation features and performance enhancements for upcoming hardware.
 <br/>
 <br/>
 This is an excellent opportunity for someone who wants to have a meaningful impact on the adoption of Linux across multiple industries. The right candidate must be resourceful, articulate, and able to deliver on a wide variety of solutions across server, desktop and IoT technologies. Canonical offers a fun, fast-paced team environment and a career full of learning and development opportunities.
 <br/>
 <br/>
 Location: This is a Globally remote role
 <br/>
 <br/>
 What your day will look like
 <br/>
 <br/>
 <ul>
  <li>
   Design and implement the best Ubuntu integration for the latest IoT desktop and server-class hardware platforms and software stacks
  </li>
  <li>
   Work with partners to deliver an optimised, first class Ubuntu experience on their platforms
  </li>
  <li>
   Take a holistic approach to the Ubuntu experience on partner platforms with inputs on technical plans, testing strategy, quality metrics
  </li>
  <li>
   Participate as technical lead on customer engagements involving complete system architectures from cloud to edge
  </li>
  <li>
   Help our partners integrate their apps, SDKs, build device OS images, and optimize applications with Ubuntu Core, Desktop and Server
  </li>
  <li>
   Work with the most advanced operating systems and application technologies available in the enterprise world.
   <br/>
   <br/>
  </li>
 </ul>
 Joining Canonical, you will partner with bright minds from all over the world, and work with an exciting set of new technologies in a fast growing company with a truly unique and ambitious vision to build a better platform with free software. You will work with customers on exciting IoT, desktop and server platforms and technologies, built to support different verticals: from robots to data centers, from telco to retail, as well as automotive.
 <br/>
 <br/>
 What we are looking for in you
 <br/>
 <br/>
 <ul>
  <li>
   You love technology and working with brilliant people
  </li>
  <li>
   You have a Bachelor's degree in Computer Science, STEM or similar
  </li>
  <li>
   You have experience with Linux packaging (Debian, RPM, Yocto)
  </li>
  <li>
   You have experience working with open source communities and licences
  </li>
  <li>
   You have experience working with Python, C, C++
  </li>
  <li>
   You can work in a globally distributed team through self-discipline and self-motivation.
   <br/>
   <br/>
  </li>
 </ul>
 Nice to have
 <br/>
 <br/>
 <ul>
  <li>
   Experience with server technologies, including UEFI firmware, GPU computing, RDMA/Infiniband and virtualization stacks
  </li>
  <li>
   Experience with graphics stacks
  </li>
  <li>
   Good understanding of networking - TCP/IP, DHCP, HTTP/REST
  </li>
  <li>
   Basic understanding of security best practices in IoT or server environments
  </li>
  <li>
   Good communication skills, ideally public speaking experience
  </li>
  <li>
   IoT / Embedded experience &ndash; from board and SoC, BMCs, bootloaders and firmware to OS, through apps and services
  </li>
  <li>
   Experience working with CI automation platforms such as GitHub
  </li>
  <li>
   Experience with performance benchmarking and profiling
  </li>
  <li>
   Some experience with Docker/OCI containers/K8s
   <br/>
   <br/>
  </li>
 </ul>
 What we offer you
 <br/>
 <br/>
 <ul>
  <li>
   Learning and development opportunities
  </li>
  <li>
   Annual compensation review
  </li>
  <li>
   Recognition rewards
  </li>
  <li>
   Annual leave
  </li>
  <li>
   Priority Pass for travel
   <br/>
   <br/>
  </li>
 </ul>
 Your base pay will depend on various factors including your geographical location, level of experience, knowledge and skills. In addition to the benefits above, certain roles are also eligible for additional benefits and rewards including annual bonuses and sales incentives based on revenue or utilisation. Our compensation philosophy is to ensure equity right across our global workforce.
 <br/>
 <br/>
 In addition to a competitive base pay, we provide all team members with additional benefits, which reflect our values and ideals. Please note that additional benefits may apply depending on the work location and, for more information on these, you can ask in the later stages of the recruitment process.
 <br/>
 <br/>
 <ul>
  <li>
   Fully remote working environment - we've been working remotely since 2004!
  </li>
  <li>
   Personal learning and development budget of 2,000USD per annum
  </li>
  <li>
   Annual compensation review
  </li>
  <li>
   Recognition rewards
  </li>
  <li>
   Annual holiday leave
  </li>
  <li>
   Parental Leave
  </li>
  <li>
   Employee Assistance Programme
  </li>
  <li>
   Opportunity to travel to new locations to meet colleagues at 'sprints'
  </li>
  <li>
   Priority Pass for travel and travel upgrades for long haul company events
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  About Canonical
  <br/>
  <br/>
 </strong>
 Canonical is a pioneering tech firm that is at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company. We expect excellence - in order to succeed, we need to be the best at what we do.
 <br/>
 <br/>
 Canonical has been a remote-first company since its inception in 2004. Work at Canonical is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game. Canonical provides a unique window into the world of 21st-century digital business.
 <br/>
 <br/>
 Canonical is an equal opportunity employer
 <br/>
 <br/>
 We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products. Whatever your identity, we will give your application fair consideration.
 <br/>
 <br/>
</div>


Linux Platform Integration - Ubuntu Systems Senior Engineer

<div>
 Work across the full Linux stack from kernel through GUI to optimise Ubuntu, the world's most widely used Linux desktop and server, for the latest silicon.
 <br/>
 <br/>
 The role is a fast-paced, problem-solving role that's challenging yet very exciting. The right candidate must be resourceful, articulate, and able to deliver on a wide variety of solutions across PC and IoT technologies. Our teams partner with specialist engineers from major silicon companies to integrate next-generation features and performance enhancements for upcoming hardware.
 <br/>
 <br/>
 <strong>
  Location:
 </strong>
 <em>
  This is a Globally remote role
  <br/>
  <br/>
 </em>
 What your day will look like
 <br/>
 <br/>
 <ul>
  <li>
   Design and implement the best Ubuntu integration for the latest IoT and server-class hardware platforms and software stacks
  </li>
  <li>
   Work with partners to deliver a delightful, optimised, first class Ubuntu experience on their platforms
  </li>
  <li>
   Take a holistic approach to the Ubuntu experience on partner platforms with inputs on technical plans, testing strategy, quality metrics
  </li>
  <li>
   Participate as technical lead on complex customer engagements involving complete system architectures from cloud to edge
  </li>
  <li>
   Help our customers integrate their apps, SDKs, build device OS images, optimize applications with Ubuntu Core, Desktop and Server
  </li>
  <li>
   Work with the most advanced operating systems and application technologies available in the enterprise world.
   <br/>
   <br/>
  </li>
 </ul>
 Joining Canonical, you will partner with bright minds from all over the world, and work with an exciting set of new technologies in a fast growing company with a truly unique and ambitious vision to build a better platform with free software. You will work with customers on exciting IoT and server platforms and technologies, built to support different verticals: from robots to data centers, from telco to retail.
 <br/>
 <br/>
 What we are looking for in you
 <br/>
 <br/>
 <ul>
  <li>
   You love technology and working with brilliant people
  </li>
  <li>
   You have a Bachelor's degree in Computer Science, STEM or similar
  </li>
  <li>
   You have experience with Linux packaging (Debian, RPM, Yocto)
  </li>
  <li>
   You have experience working with open source communities and licences
  </li>
  <li>
   You have experience working with C, C++
  </li>
  <li>
   You can work in a globally distributed team through self-discipline and self-motivation.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Additional Skills That You Might Also Bring
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Experience with graphics stacks
  </li>
  <li>
   Good understanding of networking - TCP/IP, DHCP, HTTP/REST
  </li>
  <li>
   Basic understanding of security best practices in IoT or server environments
  </li>
  <li>
   Good communication skills, ideally public speaking experience
  </li>
  <li>
   IoT / Embedded experience &ndash; from board and SoC, BMCs, bootloaders and firmware to OS, through apps and services
  </li>
  <li>
   Some experience with Docker/OCI containers/K8s
   <br/>
   <br/>
  </li>
 </ul>
 What we offer you
 <br/>
 <br/>
 Your base pay will depend on various factors including your geographical location, level of experience, knowledge and skills. In addition to the benefits above, certain roles are also eligible for additional benefits and rewards including annual bonuses and sales incentives based on revenue or utilisation. Our compensation philosophy is to ensure equity right across our global workforce.
 <br/>
 <br/>
 In addition to a competitive base pay, we provide all team members with additional benefits, which reflect our values and ideals. Please note that additional benefits may apply depending on the work location and, for more information on these, you can ask in the later stages of the recruitment process.
 <br/>
 <br/>
 <ul>
  <li>
   Fully remote working environment - we've been working remotely since 2004!
  </li>
  <li>
   Personal learning and development budget of 2,000USD per annum
  </li>
  <li>
   Annual compensation review
  </li>
  <li>
   Recognition rewards
  </li>
  <li>
   Annual holiday leave
  </li>
  <li>
   Parental Leave
  </li>
  <li>
   Employee Assistance Programme
  </li>
  <li>
   Opportunity to travel to new locations to meet colleagues at 'sprints'
  </li>
  <li>
   Priority Pass for travel and travel upgrades for long haul company events
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  About Canonical
  <br/>
  <br/>
 </strong>
 Canonical is a pioneering tech firm that is at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company. We expect excellence - in order to succeed, we need to be the best at what we do.
 <br/>
 <br/>
 Canonical has been a remote-first company since its inception in 2004. Work at Canonical is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game. Canonical provides a unique window into the world of 21st-century digital business.
 <br/>
 <br/>
 Canonical is an equal opportunity employer
 <br/>
 <br/>
 We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products. Whatever your identity, we will give your application fair consideration.
 <br/>
 <br/>
</div>


Embedded Linux Senior Software Engineer - Optimisation

TekSynap

<div><div><b>WORK ENVIRONMENT</b></div><div>
The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.</div><ul><li>
Location: Rockville, MD</li><li>
Type of environment: Onsite &ndash; NRC Headquarters (Rockville, MD) with support to NRC data centers, CFD cluster, and cloud environments</li><li>
Noise level: Medium</li><li>
Work schedule: Standard hours: <b>8:00 AM &ndash; 4:30 PM</b></li><li>
Amount of Travel: Participation in <b>on-call rotation. </b>Ability to respond onsite within <b>1 hour</b> if required</li></ul><div><div><b>
WORK AUTHORIZATION/SECURITY CLEARANCE
</b></div></div><div><p>U.S. Citizen</p><div>
Must be able to obtain and maintain an NRC security clearance (Public Trust or higher)</div></div><div><div><br>
</div></div><div><div><b>PHYSICAL DEMANDS</b>
</div></div><div><div>The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms; talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.</div></div><div><div><br>
</div></div><div><div><b>OTHER INFORMATION</b>
</div></div><div><div>Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice</div></div><div><br>
</div><br>
<div>The <b>Linux (RHEL) Operating System Lead</b> is responsible for the administration and optimization of Red Hat Enterprise Linux (RHEL) systems supporting the NRC&rsquo;s High Performance Computing System (HPCS), including the Computational Fluid Dynamics (CFD) cluster and cloud-based environments.</div><div></div><div><b><br>
REQUIRED QUALIFICATIONS</b></div><div></div><div><b><br>
Experience</b></div><ul><li>
7+ years of experience in <b>Linux system administration (RHEL preferred)</b></li><li>
Strong experience with:</li><li><ul><li>
Linux system performance tuning</li><li>
Shell scripting (Bash, Python)</li><li>
System monitoring tools</li></ul></li><li>
Experience supporting <b>HPC environments or compute clusters</b></li><li>
Familiarity with:</li><li><ul><li>
Virtualization (VMware)</li><li>
Cloud environments (AWS GovCloud, Azure)</li></ul></li><li>
Knowledge of <b>FISMA, NIST, and federal security standards</b></li><li>
Strong troubleshooting and analytical skills</li></ul><div><b>
Education</b></div><ul><li>
Bachelor&rsquo;s degree in IT, Computer Science, or related field (or equivalent experience)</li></ul><div><b>
Clearance</b></div><ul><li><div>
Must be able to obtain and maintain an NRC security clearance (Public Trust or higher)</div></li></ul><div><b>
Preferred Qualifications</b></div><ul><li>
Red Hat certifications (<b>RHCSA, RHCE</b>)</li><li>
Experience with:</li><li><ul><li>
HPC schedulers (e.g., Slurm, PBS)</li><li>
Parallel computing environments</li></ul></li><li>
Experience with scientific/engineering tools (e.g., <b>ANSYS, CFD applications</b>)</li><li>
Automation tools (Ansible, Puppet)</li></ul><div><b>
Key Responsibilities</b></div><ul><li>
Administer and maintain <b>RHEL-based systems</b> in standalone and cloud environments</li><li>
Support <b>HPC/CFD Linux cluster operations</b>, including performance tuning and job scheduling</li><li>
Install, configure, and maintain scientific and engineering applications (e.g., ANSYS, Nek5000)</li><li>
Monitor system health, performance, and availability</li><li>
Troubleshoot system failures and restore services quickly</li><li>
Implement <b>security patches, updates, and vulnerability remediation</b></li><li>
Support <b>continuous monitoring and FISMA compliance activities</b></li><li>
Manage user accounts, permissions, and access controls</li><li>
Configure networking, storage, and cluster components</li><li>
Maintain system documentation, scripts, and operational procedures</li><li>
Automate administrative tasks where possible</li><li>
Support system upgrades, capacity planning, and scaling</li><li>
Collaborate with stakeholders and participate in technical planning discussions</li></ul><div><b>
Deliverables &amp; Expectations</b></div><ul><li>
Monthly status and asset reporting</li><li>
Participation in system health reviews and change control boards</li><li>
Continuous improvement and modernization of systems</li><li>
Maintain high availability and operational readiness of HPCS systems</li></ul><p><br>
TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment. <b>&ldquo;Technology moving at the speed of thought&rdquo;</b> embodies these principles &ndash; the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers. Apply now to explore jobs with us at www.TekSynap.com.</p><p>
We offer our full-time employees a competitive <b>benefits</b> package to include health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays.</p><p>
TekSynap is a <b>drug-free</b> workplace. We reserve the right to conduct drug testing in accordance with federal, state, and local laws. All employees and candidates may be subject to drug screening if deemed necessary to ensure a safe and compliant working environment.</p><p>
By applying to a role at TekSynap you are providing consent to receive <b>text messages</b> regarding your interview and employment status. If at any time you would like to opt out of text messaging, respond &quot;STOP&quot;. As part of the application process, you agree that TekSynap Corporation may retain and use your name, <b>e-mail, and contact information</b> for purposes related to employment consideration.</p><p><b>
EQUAL EMPLOYMENT OPPORTUNITY</b></p><p>
In order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as &ldquo;protected status&rdquo;). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company-sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment. TekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. If you believe you need a reasonable accommodation in order to search for a job opening or to submit an application, please contact hr@teksynap.com for assistance.</p></div>

Linux (RHEL) Operating Systems Lead

Exegy

<div><div><div><h2 class="jobSectionHeader"><b>Location</b></h2><p>
St. Louis</p></div><div><h2 class="jobSectionHeader"><b>
Employment Type</b></h2><p>
Full time</p></div><div><h2 class="jobSectionHeader"><b>
Location Type</b></h2><p>
Hybrid</p></div><div><h2 class="jobSectionHeader"><b>
Department</b></h2><p>
Research and Development</p></div></div><div></div><div><div><div><p><b><br>
About Exegy</b></p><p>
Exegy is a global leader in intelligent market data, advanced trading systems, and future-proof technology. Exegy serves as a trusted partner to the complete ecosystem of the buy-side, sell-side, exchanges, and financial services technology firms around the globe. Headquartered in St. Louis with regional offices in North America, the UK/Europe and Asia Pacific, Exegy has the global footprint to deliver world-class support and managed services to its customer base of elite financial market participants.</p><p></p><p><b>
Job Summary</b></p><p>
Exegy is seeking a highly motivated senior level software engineer to work closely with other dedicated engineers in our Market Data Engineering group. The engineer will be responsible for the design, implementation, documentation, and debugging of time critical, multi-threaded, distributed s that interact with Exegy&rsquo;s custom hardware acceleration devices. Successful candidates should have a strong work ethic, work well with others in a team environment, and the ability to quickly learn complex concepts relating to market data processing systems.</p><p></p><p><b>
Responsibilities</b></p><ul><li><p>
Design and build ultra-low latency Foreign Exchange feed handlers for Equities, Options, Commodities, Fixed Income and Foreign Exchange markets</p></li><li><p>
Design and build reusable and extensible software to process financial market data in an ultra-low latency system</p></li><li><p>
Refactor and test existing software implementations</p></li><li><p>
Support Technical Account Managers and Operations</p></li><li><p>
Mentor other Market Data Engineer developers</p></li><li><p>
Work with other development groups at Exegy on strategic initiatives</p></li><li><p>
Identify ways to automate testing, packaging, and deployment</p></li></ul><p></p><p><b>
Our Ideal Candidate Has:</b></p><ul><li><p>
BS degree in Computer Science, Electrical Engineering, or relevant industry experience</p></li><li><p>
7+ years&rsquo; experience in developing multithreaded C++ software systems</p></li><li><p>
5+ years&rsquo; experience in designing clean and extensible object-oriented designs</p></li><li><p>
Experience in applying design patterns</p></li><li><p>
Experience with scripting languages, Python preferred</p></li><li><p>
Familiarity with Linux operating systems (RedHat, CentOS, SUSE Linux)</p></li><li><p>
Experience with Linux development and debugging tools</p></li><li><p>
Knowledge of profiling, memory leak detection and other code analysis</p></li><li><p>
Experience developing real-time or ultra-low latency C++ software systems preferred</p></li><li><p>
Experience with financial market data preferred</p></li></ul></div></div></div></div><p></p>

Senior Software Engineer, C++

TISTA Science and Technology Corporation

<div>Overview:
<div>
TISTA Science and Technology is seeking a <b>Senior Linux System Administrator </b>to join our growing team.</div><div></div><div><br>
At TISTA, you&rsquo;ll do meaningful, mission‑driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. We&rsquo;re proud to serve and hire Veterans, and we put people first in everything we do.</div><div></div><div><b><br>
TISTA </b>associates enjoy above Industry Healthcare Benefits, Remote Working Options, Paid Time Off, Training/Certification opportunities, Healthcare Savings Account &amp; Flexible Savings Account, Paid Life Insurance, Short-term &amp; Long-term Disability, 401K Match, Professional development reimbursement, Employee Assistance Program, Paid Holidays, Military Leave, and much more!</div>
Responsibilities:
<div>
The Senior Linux System Administrator is responsible for the planning, deployment, security, automation, and maintenance of enterprise Linux systems and infrastructure. This role ensures high availability, system integrity, performance optimization, and secure operations supporting critical business applications.</div><ul><li>
Install, configure, maintain, and troubleshoot enterprise Linux systems including Red Hat Enterprise Linux and Solaris</li><li>
Manage user accounts, permissions, and authentication services.</li><li>
Perform patch management, upgrades, and lifecycle planning.</li><li>
Maintain storage, file systems, backups, and recovery procedures.</li><li>
Administer virtual environments.</li><li>
Support hybrid cloud infrastructure in Amazon Web Services and Microsoft Azure.</li><li>
Maintain core network services (DNS, DHCP, NFS, SSH, VPN).</li><li>
Develop scripts using Bash, Python, or similar languages.</li><li>
Implement automation using Ansible and Puppet.</li><li>
Automate provisioning, patching, compliance checks, and deployments.</li><li>
Implement system hardening, access controls, and security best practices.</li><li>
Manage firewalls, SELinux, and intrusion detection measures.</li><li>
Monitor logs and perform vulnerability remediation.</li><li>
Support compliance requirements such as CIS benchmarks, NIST, or HIPAA (if applicable).</li><li>
Implement system monitoring using Nagios, Zabbix, or Prometheus.</li><li>
Analyze performance metrics and optimize system resources.</li><li>
Perform root cause analysis and implement preventative solutions.</li></ul>
Qualifications:
<ul><li>5+ years of advanced Linux system administration experience.</li><li>
Expertise managing enterprise Linux environments.</li><li>
Experience with virtualization and cloud platforms.</li><li>
Strong scripting and automation skills.</li><li>
Competencies in Enterprise Linux administration</li><li>
Competencies in Automation &amp; Infrastructure as Code</li><li>
Competencies in Security &amp; compliance best practices</li><li>
Competencies in Cloud and virtualization technologies</li><li>
Competencies in Advanced troubleshooting &amp; performance tuning</li><li>
Competencies in Documentation &amp; operational excellence</li></ul><div><b>
Preferred Certifications</b></div><ul><li>
Red Hat Certified Engineer (RHCE)</li><li>
Linux Foundation certifications (LFCS/LFCE)</li><li>
AWS or Azure cloud certifications</li></ul><div><b>
Education:</b></div><ul><li>
Bachelor&rsquo;s degree in computer science, electronics engineering or related technical discipline and 5+ years&rsquo; work experience</li><li>
Eight (8) years of additional relevant experience may be substituted for education (13 years total)</li></ul><div></div><div><b><br>
Clearance:</b></div><ul><li><div>
The ability to pass a Tier 4/HIGH Background Investigation</div></li></ul><div></div><div><b><br>
Location:</b></div><ul><li>
Department of Veteran's Affairs <b>(100% On-site)</b></li><li>
Sunday - Thursday (11:30 PM - 8:00 AM CST Time)</li><li>
Austin Information Technology Center (AITC)</li></ul><div>
1615 Woodward Street,</div><div>
Austin, TX 78741</div></div>

Senior Linux System Administrator

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