Site Reliability Engineer — NixOS, Monitoring & Resilience

Leidos Inc; Columbus (OH); Hybrid; USD 87,000 - 157,000; Full time

Benefits offered by this job

Work-from-home options

Job summary

Leidos is seeking a Site Reliability Engineer to join our team and help build reliable compute platforms spanning Linux, networking, storage, and observability. The role emphasizes declarative configurations with Nix/NixOS and infrastructure-as-code, aiming to minimize configuration drift and ensure reproducibility.

You'll own deployment pipelines, contribute to high-performance compute environments, and collaborate across security, analytics, and field deployments while learning and

Qualifications

• Bachelor's degree in Computer Science or related field.
• 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 experience of 2+ years.
• Ability to debug complex systems methodically across multiple layers of the stack.

Responsibilities

• 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.

Skills

Nix/NixOS

Linux

Networking

Scripting (Python/Go/Bash)

IaC (Terraform/Ansible)

Debugging complex systems

Education

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

Tools

Nix

NixOS

Terraform

Ansible

Prometheus

Grafana

Job description

Leidos is seeking a Site Reliability Engineer to join our team and help build reliable compute platforms spanning Linux, networking, storage, and observability. The role emphasizes declarative configurations with Nix/NixOS and infrastructure-as-code, aiming to minimize configuration drift and ensure reproducibility.

You'll own deployment pipelines, contribute to high-performance compute environments, and collaborate across security, analytics, and field deployments while learning and