senior linux engineer

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>
Description: We are seeking a highly skilled and multi-faceted Cyber Engineer for a critical contract role supporting Google's SIPRNet enclave. The ideal candidate is a proactive and seasoned professional with extensive, hands-on experience navigating Red Hat Linux, the NIST 800-53 Risk Management Framework (RMF) control requirements, and Security Operations for a classified network in a unique commercial cloud setting. This role requires a blend of technical engineering prowess to provide Security Operations support as well as a deep understanding of continuous monitoring control requirements to prepare for security assessments and auditing. You will be a key contributor to our SIPR Enclave team, supporting the SIPR Enclave Lead in RMF activities and the Senior Cyber Engineer in security operations support. 
How the Cybersecurity Engineer will make an impact:
From a RMF perspective, as directed by the SIPR Enclave Lead -<ul><li>
Supports maintaining the Continuous Monitoring program, specifically around vulnerability management, endpoint security, auditing, and security alert triage/monitoring.</li><li>
Supports control implementation statement updates, documentation development for plans or procedures, artifact identification for assessments, and body of evidence generation.</li><li>
Supports POAM mitigation and/or remediation activities.</li></ul>
From a Security Tools administrative perspective, as directed by the Senior Cyber Engineer, the Engineer -<ul><li>
Ability to update and maintain security tool versions (Trelix, etc)</li><li>
Configure, patch, and update the Linux operating systems</li><li>
Monitors the security applications such as Trelix</li><li>
Scanning implementation (Tenable.sc, SCC Tool)</li><li>
SIEM implementation (Splunk)</li><li>
Endpoint security implementation (Trellix)</li><li>
Works with the vendors of the security applications as applicable to maintain security updates, licenses, resolve support issues (e.g., for Tenable plugins), etc.</li></ul>
For the SIEM:<ul><li>
Ensure security systems are up to date and implemented.</li><li>
Validate the telemetry from the hosts and security applications are forwarded to the SIEM.</li><li>
Configures alerts for privileged activity that would be conducted in the enclave as well as alerts from security advisories.</li><li>
Triages all alerts from the SIEM to ensure activity in the environment is authorized.</li><li>
Investigates, resolves, and reports security incidents in alignment with the Incident Response Plan.</li></ul>
For scanning/STIGs:<ul><li>
Ensures the inventory of hosts and recurring/ad-hoc scan policies are accurate.</li><li>
Reviews the scans to confirm correct, actionable data is generated to support the patching activities.</li><li>
Reviews STIG results and supports the team in implementing corrective action as applicable.</li></ul>
For endpoint management:<ul><li>
Ensures all hosts can be seen in the endpoint security application with ongoing monitoring and applicable policies applied.</li><li>
Triages all alerts from the tool to ensure activity in the environment is authorized.</li><li>
For insider threat monitoring:</li><li>
Ensures deployment of tool and related modules are performing as intended.</li><li>
Monitors aggregate user data as directed.</li><li>
Designs, develops, tests, and evaluates information system security throughout the systems development life cycle.</li></ul> 
What you'll need to be successful:<ul><li>
Education: BA/BS Degree or equivalent experience in lieu of degree</li></ul><ul><li>
Experience: 8+ years of related experience</li></ul><ul><li>
Ability to use security operations of Trelix.</li><li>
Ability to update security applications, such as Trelix.</li><li>
Experience patching and updating LINUX (or RHEL or Red Hat)</li><li>
Ability to harden the system using STIGs.</li><li>
Ability to update the underlying security tools Linux operating system.</li><li>
Role requirements: Knowledge of the complete NIST SP 800 series (especially 800-37, 800-53, 800-30) and risk management principles.</li><li>
Certifications: Must be DoD 8140 / 8570.01-M compliant (e.g., including but not limited to Security+)</li></ul><ul><li>
Investigation/Clearance Level:<ul><li>
Must possess a current and active Top Secret (Sensitive Compartmented Information [SCI] eligibility).</li></ul> 
Location: Onsite at the classified operations center in McLean, VA.</li></ul>
Preferred Qualifications:<ul><li>
Hands-on experience with security operations of Teramind.</li><li>
Hands-on experience with Tenable.sc.</li><li>
5 days onsite McLean, VA</li></ul>
</div></div><div><div><div>Work Requirements</div></div><div></div><div><div>
Years of Experience<div>
8 + years of related experience</div><ul><li>may vary based on technical training, certification(s), or degree</li></ul></div><div></div><div>
Certification
CompTIA Security+ CE | CompTIA - CompTIA</div><div></div><div>
Travel Required<div>
10-25%</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 $142,792 - $175,950. 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 Cybersecurity Engineer (Linux)

Business Solutions & Services (BSS) - USA

<div>
 
 Job Summary
 
 
 
 We are looking for a skilled Red Hat Engineer with 3 &ndash; 5 years of experience in Linux system administration, container platforms, and enterprise infrastructure environments. The ideal candidate should have hands-on expertise in Red Hat Enterprise Linux (RHEL), automation tools, and container orchestration using Red Hat OpenShift.
 
 
 
 Key Responsibilities
 
 
 
 <ul>
 <li>
 Install, configure, and maintain Red Hat Enterprise Linux (RHEL 7/8/9) servers.
 </li>
 <li>
 Manage patching, upgrades, system hardening, and performance tuning.
 </li>
 <li>
 Deploy and manage containerized workloads on Red Hat OpenShift.
 </li>
 <li>
 Support containerization using Docker and orchestration via Kubernetes.
 </li>
 <li>
 Implement automation using Ansible and manage CI/CD pipelines (e.g., Jenkins).
 </li>
 <li>
 Monitor system health and performance using tools such as Nagios or Grafana.
 </li>
 <li>
 Support cloud and hybrid environments across major cloud platforms.
 </li>
 <li>
 Manage virtualization platforms and support on-prem to cloud migrations.
 </li>
 <li>
 Ensure infrastructure security, compliance, and documentation standards.
 
 
 
 </li>
 </ul>
 
 Required Skills
 
 
 
 <ul>
 <li>
 3 &ndash; 5 years of hands-on Linux administration experience.
 </li>
 <li>
 Strong expertise in Red Hat Enterprise Linux.
 </li>
 <li>
 Experience managing Red Hat OpenShift environments.
 </li>
 <li>
 Knowledge of automation, scripting (Bash/YAML), and DevOps practices.
 </li>
 <li>
 Understanding of networking, storage, and virtualization concepts.
 </li>
 <li>
 Experience supporting development, testing, and production environments.
 
 
 
 </li>
 </ul>
 
 Preferred Certifications
 
 
 
 <ul>
 <li>
 Red Hat Certified System Administrator (RHCSA)
 </li>
 <li>
 Red Hat Certified Engineer (RHCE)
 
 </li>
 </ul>
</div>

Red Hat Engineer

Canonical

<div>
 Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. Our customers include the world's leading public cloud and silicon providers, and industry leaders in many sectors. The company is a pioneer of global distributed collaboration, with 1200+ colleagues in 75+ countries and very few office based roles. Teams meet two to four times yearly in person, in interesting locations around the world, to align on strategy and execution.
 
 
 The company is founder led, profitable and growing.
 
 
 We are hiring engineering leaders to work across the breadth of our Ubuntu Engineering organisation - leaders who care deeply for quality, performance and resilience in software, and have a proven track record for building, nurturing and developing high performing engineering teams.
 
 
 This leadership track includes roles for managers and Senior+ engineers alike. At Canonical, managers are expected to stay technical and close to the code, and our Senior+ engineers lead and develop software projects, as well as the processes and people around them.
 
 
 Our teams integrate the freshest open source software, provide robust upgrade paths and engineer the future of Ubuntu. Ubuntu is not just the world's most deployed open source operating system, it's a platform that enables innovation for millions of users across the globe. Our community represents the full breadth of the developer experience; from students, hobbyists and freelancers to high performance engineering and creative teams in corporate and academic environments.
 
 
 The four key teams that ship Ubuntu are the
 
 
 <ul>
 <li>
 
 Foundations
 
 : maintaining foundational software: architectures, package managers, compilers, toolchains, bootloaders, filesystems and core utilities
 </li>
 <li>
 
 Server:
 
 leading the design, evolution and future of our Ubuntu Server distribution
 </li>
 <li>
 
 Desktop:
 
 driving Ubuntu Desktop, our future immutable desktop: Ubuntu Core Desktop, WSL, gaming technology, and a suite of modern applications for the desktop crafted with Flutter
 </li>
 <li>
 
 Debcrafters:
 
 a new team responsible for the forward movement, maintenance and overall health of the Ubuntu archive: one of the most abundant repositories of open source software available today
 
 
 </li>
 </ul>
 You'll be accountable for your technical roadmap, and responsible for your team: helping them grow as engineers, do important and satisfying work, and have a great time while doing it. Technical leadership experience and a background in software engineering are necessary prerequisites for this role. You will be expected to lead, challenge, and develop strong engineers, positively influence the culture, facilitate technical delivery, and work with your team on strategy and execution
 
 
 At Canonical, you will have the opportunity to engage with and contribute to the broader open source community. We're looking for individuals who can help build a thriving community and contribute with enthusiasm and precision to a broad range of technologies
 
 
 
 Location
 
 : We have remote roles open in every time zone.
 
 
 
 The role entails
 
 
 
 Based on the first round of interviews, we identify specific teams where you might be an excellent fit and conduct second-round interviews with those teams. Our leads are:
 
 
 <ul>
 <li>
 Leading their teams in elevating the Linux developer and user experience
 </li>
 <li>
 Designing, building and shipping high quality, performant software in Rust, Go and Python
 </li>
 <li>
 Demonstrating sound engineering principles through architecture, development and code reviews
 </li>
 <li>
 Taking responsibility for planning, estimation and execution
 </li>
 <li>
 Working with product management to define the vision and strategy for Ubuntu
 </li>
 <li>
 Setting expectations with other engineering teams, senior management, and external stakeholders
 </li>
 <li>
 Offering coaching, mentoring, technical feedback and hands-on career development
 </li>
 <li>
 Contributing to upstream and neighboring open source projects
 </li>
 <li>
 Optimizing the distribution for performance, reliability, and security
 </li>
 <li>
 Debugging complex system-level issues and delivering robust solutions
 </li>
 <li>
 Authoring and improving technical and community documentation
 
 
 </li>
 </ul>
 
 What we are looking for in you
 
 
 
 <ul>
 <li>
 An exceptional academic track record from both high school and university
 </li>
 <li>
 Undergraduate degree in Computer Science or STEM, or a compelling narrative about your alternative path
 </li>
 <li>
 Ability to drive and deliver technical work streams going above and beyond expectations
 </li>
 <li>
 Lead and coach others to deliver exceptional engineering work
 </li>
 <li>
 A demonstrated passion for open source software
 </li>
 <li>
 Significant experience with Rust, Go, Python, Flutter or C/C++
 </li>
 <li>
 Professional written and spoken English
 </li>
 <li>
 Excellent communication and interpersonal skills
 </li>
 <li>
 Result-oriented, with a personal drive to meet commitments
 </li>
 <li>
 Ability to travel twice a year, for company events up to two weeks each
 
 
 </li>
 </ul>
 
 Nice-to-have skills
 
 
 
 <ul>
 <li>
 Experience contributing to or leading open source projects
 </li>
 <li>
 Experience with Linux distributions/distribution engineering
 </li>
 <li>
 Experience with software packaging and distribution mechanisms
 </li>
 <li>
 Performance or Security Engineering experience
 
 
 </li>
 </ul>
 
 What we offer you
 
 
 
 We consider geographical location, experience, and performance in shaping compensation worldwide. We revisit compensation annually (and more often for graduates and associates) to ensure we recognize outstanding performance. In addition to base pay, we offer a performance-driven annual bonus. We provide all team members with additional benefits, which reflect our values and ideals. We balance our programs to meet local needs and ensure fairness globally.
 
 
 <ul>
 <li>
 Distributed work environment with twice-yearly team sprints in person
 </li>
 <li>
 Personal learning and development budget of USD 2,000 per year
 </li>
 <li>
 Annual compensation review
 </li>
 <li>
 Recognition rewards
 </li>
 <li>
 Annual holiday leave
 </li>
 <li>
 Maternity and paternity leave
 </li>
 <li>
 Employee Assistance Programme
 </li>
 <li>
 Opportunity to travel to new locations to meet colleagues
 </li>
 <li>
 Priority Pass, and travel upgrades for long haul company events
 
 
 </li>
 </ul>
 
 About Canonical
 
 
 
 Canonical is a pioneering tech firm 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. Canonical has been a remote-first company since its inception in 2004. Working here is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game.
 
 
 
 Canonical is an equal opportunity employer
 
 
 
 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.
</div>

Ubuntu Engineering Lead

<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.
 
 
 Our teams partner with specialist engineers from major silicon companies to integrate next-generation features and performance enhancements for upcoming hardware.
 
 
 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.
 
 
 Location: This is a Globally remote role
 
 
 What your day will look like
 
 
 <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.
 
 
 </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.
 
 
 What we are looking for in you
 
 
 <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.
 
 
 </li>
 </ul>
 Nice to have
 
 
 <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
 
 
 </li>
 </ul>
 What we offer you
 
 
 <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
 
 
 </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.
 
 
 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.
 
 
 <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
 
 
 </li>
 </ul>
 
 About Canonical
 
 
 
 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.
 
 
 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.
 
 
 Canonical is an equal opportunity employer
 
 
 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.
 
 
</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.
 
 
 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.
 
 
 
 Location:
 
 
 This is a Globally remote role
 
 
 
 What your day will look like
 
 
 <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.
 
 
 </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.
 
 
 What we are looking for in you
 
 
 <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.
 
 
 </li>
 </ul>
 
 Additional Skills That You Might Also Bring
 
 
 
 <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
 
 
 </li>
 </ul>
 What we offer you
 
 
 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.
 
 
 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.
 
 
 <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
 
 
 </li>
 </ul>
 
 About Canonical
 
 
 
 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.
 
 
 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.
 
 
 Canonical is an equal opportunity employer
 
 
 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.
 
 
</div>

Embedded Linux Senior Software Engineer - Optimisation

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