Sr. Site Reliability Engineer (SRE) III

Position Description

Join a collaborative, high-performing engineering team delivering mission-critical infrastructure and reliability solutions at the highest levels of the federal government. This is a systems-leaning SRE role focused on stability, automation, incident response, and platform observability — supporting a large, multi-customer federal organization where your work directly impacts national priorities. You'll work alongside Platform Engineers, DevSecOps engineers, PostgreSQL DBAs, and Software Developers in a fast-paced classified environment.

What You'll Do

• Design, deploy, and maintain mission-critical application workloads on Kubernetes and virtualized environments, ensuring scalability, availability, and compliance with government requirements
• Build and sustain automated CI/CD pipelines, monitoring, alerting, and configuration management workflows across development, integration, staging, and production environments
• Provision and maintain developer environments and toolchains to enable rapid, secure, and efficient software delivery
• Identify and eliminate friction across the software development lifecycle — building developer-first platform experiences
• Own incident response, root cause analysis, and continuous improvement activities across a large, multi-customer organization
• Communicate clearly and confidently with senior stakeholders and high-visibility government customers

Required Skills and Experience

• Active Top Secret clearance (required at time of hire; SCI sponsorship available)
• DoD 8140 certification — Security+ or higher (required)
• 7+ years of experience in systems engineering, SRE, or operations with direct ownership of production availability, performance, and reliability
• Kubernetes experience — production ownership required, including container-native and object storage solutions (MinIO, PortWorx, S3-compatible services)
• Experience with Ansible, Desired State Configuration, GitLab CI/CD automation, and Bash scripting
• Experience with enterprise load-balancing solutions (F5 or equivalent)
• Experience designing and managing monitoring, alerting, and observability solutions aligned to defined SLOs
• Ability to contribute immediately with minimal ramp-up in a mission-critical classified environment
• On-call rotation participation required — flexibility essential

About Seneca Resources

Seneca Resources is more than just a staffing and consulting firm — we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. When you work with Seneca, you're choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way. Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.