Site Reliability Engineer

Leidos; San Antonio (TX); Hybrid; USD 87,000 - 157,000; Full time

Benefits offered by this job

Health and Wellness programs

Retirement plan

Paid Leave

Job summary

Leidos is seeking a Site Reliability Engineer to help build and operate scalable compute platforms. You will work across Linux systems, networking, distributed storage, and observability, with a focus on reproducible environments and NixOS-based deployments.

You'll collaborate to reduce configuration drift, enhance resilience, and automate deployment pipelines. The role offers flexible hours and work-from-home options within a supportive, expert team.

Qualifications

• Bachelor's degree in CS/CE or equivalent skills.
• Strong experience administering Linux systems.
• Experience with Linux networking, storage, and file systems.
• Experience automating system configuration and deployment.
• Experience with Nix and/or NixOS in production, lab, or personal environments.
• 2+ years of scripting (Python, Go, Bash) or similar.
• Ability to debug complex systems across stack layers.

Responsibilities

• Own the reliability and operation of critical compute and data platforms.
• Design, deploy, and maintain Linux infrastructure, including NixOS-based systems.
• Build reproducible configurations and deployment workflows using Nix and IaC.
• Develop reusable NixOS modules, packages, flakes, and system configurations.
• Improve platform resilience, fault tolerance, and maintainability.
• Build monitoring, logging, alerting, and observability capabilities.
• Diagnose failures across Linux, networking, storage, containers, and distributed systems.
• Automate repetitive operational tasks and reduce drift.
• Design security and maintainability components for deployed systems.
• Help define deployment standards, upgrade strategies, and disaster recovery.
• Perform capacity planning and identify performance bottlenecks.
• Own solutions spanning CNO, analytics, security, infrastructure, and field deployments.
• Learn new skills and teach others.

Skills

Linux administration

Networking

Storage

Automation

Nix/NixOS

Scripting

Debugging

Learning mindset

Education

Bachelor's degree or equivalent

Tools

NixOS

Terraform

Ansible

Job description

Who We Are:

Kudu Dynamics is a 100% employee-owned company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced capabilities throughout the entire USG arsenal. Our team of hackers, engineers, makers, and shakers brings deep experience across research, development, deployment, and operations.

Kudu Dynamics is uniquely qualified to anticipate tomorrow's threats and build the next generation of capabilities.

When you come in for your interview, you'll see that Kudu is an amazing place to work, where you'll be surrounded by experts who are ready to teach and learn. Our team has flexible work hours and work-from-home options. When we do work from the offices, we enjoy home-roasted coffee and award-winning workspaces.

Job Description:

Hello! We're a small team in a fun company looking for someone to come in and help us build systems that stay reliable when things get complicated.

We need a Site Reliability Engineer who has experience building, deploying, automating, and operating complex compute platforms. You'll work across infrastructure, Linux systems, networking, distributed storage, observability, security, and deployment automation, with a particular emphasis on creating systems that are reproducible, maintainable, resilient, and easy to operate.

A major part of this role will involve Nix and NixOS. We want someone who appreciates declarative systems, reproducible environments, infrastructure-as-code, and reducing configuration drift. You may be building NixOS-based servers, improving deployment pipelines, developing reusable Nix modules, debugging distributed systems, or making sure a platform can be rebuilt predictably from scratch.

Critical components of the environment may include high-performance compute, distributed Linux file systems, network design, security-in-depth, ML/AI infrastructure, high-bandwidth data processing, cloud deployment, and fielded systems.

You don't need to be an expert at everything. Whatever part you bite off, though, will be yours to own. This is a great opportunity to apply deep systems expertise while learning adjacent areas.

Our team needs your help making sure our customers are repeatedly provided with operational insights from a multi-domain data environment—and that the infrastructure producing those insights is dependable, observable, reproducible, and recoverable.

These Are the Things You'll Get to Do:

• Own the reliability and operation of critical compute and data platforms.
• Design, deploy, and maintain Linux infrastructure, including NixOS-based systems.
• Build reproducible system configurations and deployment workflows using Nix and infrastructure-as-code.
• Develop reusable NixOS modules, packages, flakes, and system configurations.
• Improve platform resilience, fault tolerance, recoverability, and maintainability.
• Build monitoring, logging, alerting, and observability capabilities that help us understand system behavior before customers notice problems.
• Diagnose difficult failures across Linux, networking, storage, containers, and distributed systems.
• Automate repetitive operational tasks and eliminate configuration drift.
• Design and build security and maintainability components for deployed systems.
• Help define operational standards, deployment practices, upgrade strategies, and disaster-recovery procedures.
• Perform capacity planning and identify performance bottlenecks across compute, storage, and networking.
• Own solutions spanning CNO, analytics, security, infrastructure, and field deployments.
• Learn new skills and teach the rest of us what you know.

Minimum Qualifications:

• Enthusiasm for learning new stuff.
• Bachelor's degree in Computer Science, Computer Engineering, a related field, or amazing equivalent skills.
• Strong experience administering and troubleshooting Linux systems.
• Experience with Linux networking, storage, and file systems.
• Experience automating system configuration and deployment.
• Experience with Nix and/or NixOS in production, lab, or significant personal environments.
• Python, Go, Bash, or similar scripting/programming experience of 2+ years.
• Ability to debug complex systems methodically across multiple layers of the stack.

Nice-to-Have Qualifications:

• Deep experience with NixOS, including custom modules, overlays, flakes, packaging, and reproducible deployments.
• Experience operating fleets of Linux systems.
• Infrastructure-as-code experience with Nix, Terraform, Ansible, or similar tooling.
• Experience designing highly available or fault-tolerant systems.
• Monitoring and observability experience with tools such as Prometheus, Grafana, Loki, OpenTelemetry, Elasticsearch, or similar systems.

Original Posting:

August 14, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87,100.00 - $157,450.00

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.