Senior DevOps Engineer

Job Summary

We are seeking a Senior Platform & Release Engineer to design, build, secure, and deliver Kubernetes-based platforms and release systems in complex operational environments, including offline and air‑gapped deployments. The role sits at the intersection of platform engineering, automation, release management, and developer enablement, requiring deep Kubernetes and infrastructure expertise, strong software engineering skills, and a pragmatic, security‑conscious mindset.

• Design, build, and maintain Kubernetes‑based platform and release systems for secure and constrained environments.
• Develop and maintain automation tooling, deployment workflows, and operational utilities using Python, Bash, and infrastructure‑as‑code.
• Build and support release pipelines, artifact management workflows, and reproducible deployment bundles.
• Maintain and improve internal operator and engineering workbench tools using modern web technologies.
• Support Kubernetes platform operations, including cluster provisioning, upgrades, configuration management, and troubleshooting.
• Engineer secure deployment workflows with strong attention to credential handling, certificate management, secrets isolation, and deployment guardrails.
• Collaborate across engineering teams to improve platform reliability, deployment consistency, and operational efficiency.
• Troubleshoot complex issues spanning applications, containers, clusters, hosts, networking, storage, and artifact distribution systems.
• Mentor junior engineers and establish engineering best practices across platform and release operations.
• Continuously improve engineering workflows through automation, AI‑assisted tooling, and operational best practices.

• Senior‑level experience in platform engineering, release engineering, or Dev Ops/SRE roles supporting Kubernetes‑based systems.
• Hands‑on experience operating Kubernetes in offline, air‑gapped, or otherwise constrained deployment environments.
• Strong expertise with Kubernetes, Helm, RKE2, Ansible Playbooks, Jinja templating.
• Automation and tooling development experience using Python and Bash.
• Full‑stack development capability with Type Script/JavaScript, React, Tailwind CSS.
• Strong understanding of CI/CD pipelines and artifact management workflows using Git, Artifactory, container registries (including Zot or similar), Helm charts, signed and reproducible release bundles.
• Experience implementing secure engineering and deployment practices: credential and secret management, TLS certificates and CA bundle management, deployment boundaries, guardrails.
• Strong understanding of platform engineering, release engineering, PaaS/SaaS delivery models, operator‑focused tooling and workflows.
• Eligible to obtain a DOD Security Clearance.

• Experience supporting government, defense, or intelligence community environments.
• Strong Linux systems engineering experience in RHEL/Rocky Linux, Docker/container runtimes, RKE2, networking, storage systems, host provisioning.
• Security‑minded engineering approach that balances automation, maintainability, auditability, and operational constraints.
• Strong troubleshooting and root‑cause analysis across application layers, Kubernetes clusters, host systems, networking, artifact repositories, authentication and credential systems.
• Demonstrated ability to mentor engineers and communicate complex platform concepts to technical and non‑technical stakeholders.

• Reliable, repeatable, and secure platform deployments across connected and disconnected environments.
• Streamlined release and artifact workflows with strong operational visibility and reproducibility.
• Improved developer and operator experience through automation and tooling.
• Faster issue resolution through strong systems‑level troubleshooting.
• Continuous improvement of engineering practices using modern automation and AI‑assisted workflows.

$ – $ + benefits.

We are committed to creating an inclusive workplace and welcome applications from all backgrounds. Cubic is an equal‑opportunity employer and does not discriminate based on protected characteristics under applicable law.