Software Integration Engineer 3: Kubernetes & TS/SCI

Cornerstone Defense; Annapolis (MD); On-site; USD 190,000 - 210,000; Full time

Benefits offered by this job

Medical, Dental and Vision Plans

Generous PTO Policy

401(k)

HSA and FSA options

Life and Disability Insurance

Tuition Reimbursement and Training

Perks at Work Discount Program

Referral Program

Leads Generation Program

CollegeAmerica 529

Fitness Reimbursement Program

Travel Assistance

Norton Lifelock Benefit Solutions

Life Planning Financial & Legal

Job summary

Cornerstone Defense is seeking a Software Integration Engineer III to install, configure, and maintain a large-scale on‑prem Kubernetes cluster powering mission-critical apps. You will partner with DevOps, Security, and application teams to drive automation and best practices across tenants.

The role requires extensive experience in Linux, scripting, Kubernetes, Docker, and IaC tooling, with a focus on reliability, performance, and security in a defense/comms environment.

Qualifications

• Bachelor's degree in CS or related field with strong Linux background.
• 8+ years for senior level with relevant systems integration experience.
• Experience integrating, installing, configuring, upgrading software in heterogeneous environments.

Responsibilities

• Install, configure, maintain, and troubleshoot a large on‑prem Kubernetes cluster.
• Collaborate with DevOps, Security, and App teams to implement automation and best practices.
• Support integration of new services within Kubernetes and ensure reliability and security.
• Manage IaC and automation tools such as Helm and Ansible, monitor performance with Prometheus/Grafana.

Skills

Linux CLI

Bash/Python

Kubernetes troubleshooting

CI/CD pipelines

Git & collaboration

Jira/Confluence

Education

Bachelor's Degree in Computer Science or related field

Master's Degree substitute 2 years experience

Tools

Docker

Kubernetes

Helm

Ansible

Prometheus Grafana

Job description

Cornerstone Defense is seeking a Software Integration Engineer III to install, configure, and maintain a large-scale on‑prem Kubernetes cluster powering mission-critical apps. You will partner with DevOps, Security, and application teams to drive automation and best practices across tenants.

The role requires extensive experience in Linux, scripting, Kubernetes, Docker, and IaC tooling, with a focus on reliability, performance, and security in a defense/comms environment.