Site Reliability Engineer — Remote, NixOS & Observability

Leidos Inc; San Antonio (TX); On-site; USD 87,000 - 157,000; Full time

Benefits offered by this job

Flexible work hours

Work-from-home options

Home-roasted coffee and award-winning?

Office amenities and collaboration

Job summary

Leidos is seeking a Site Reliability Engineer to help build reliable compute platforms and Nix/NixOS-based infrastructure. You will design, deploy, and automate Linux environments, create reusable modules and deployment workflows, and drive resilience and observability across distributed systems.

The role emphasizes declarative systems, infrastructure-as-code, and reducing configuration drift. You will work on high-performance compute, distributed storage, networking, and ML/AI infrastructure,

Qualifications

• Bachelor's degree or equivalent experience in computer science or related field.
• Strong Linux system administration and troubleshooting experience.
• Experience with Linux networking, storage, and file systems.
• Proficient in automating system configuration and deployment.
• Experience with Nix/NixOS in production or labs.
• 2+ years of scripting in Python, Go, or Bash.
• Ability to debug complex systems methodically across 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, recoverability, and maintainability.
• Build monitoring, logging, alerting, and observability to preempt issues.
• Diagnose failures across Linux, networking, storage, containers, and distributed systems.
• Automate repetitive operational tasks and eliminate drift.
• Contribute to security and maintainability of deployed systems.
• Help define deployment practices, upgrades, and disaster-recovery procedures.
• Perform capacity planning and identify performance bottlenecks.

Skills

Enthusiasm for learning

Linux systems administration

Linux networking

Automation of configuration

Scripting (Python/Go/Bash)

Debugging complex systems

Education

Bachelor's degree in Computer Science/Engineering or related field

Tools

Nix/NixOS

Terraform

Ansible

Job description

Leidos is seeking a Site Reliability Engineer to help build reliable compute platforms and Nix/NixOS-based infrastructure. You will design, deploy, and automate Linux environments, create reusable modules and deployment workflows, and drive resilience and observability across distributed systems.

The role emphasizes declarative systems, infrastructure-as-code, and reducing configuration drift. You will work on high-performance compute, distributed storage, networking, and ML/AI infrastructure,