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# Sr. Senior Platform Engineer III

- **Company:** Eliassen Group
- **Location:** Arlington, VA, United States
- **Experience:** Expert
- **Salary:** $210,000.0 - $285,000.0
- **Contract:** Permanent contract
- **Skills:** Adobe InDesign, Agile Methodology, Amazon S3, Continuous Integration, DevOps, OpenShift, Ceph (Software), System Availability, Delivery Pipeline, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Rancher, Build Process, Terraform, Docker
- **Published:** October 2, 2026
- **Apply:** https://www.disabledperson.com/jobs/75657299-sr-senior-platform-engineer-iii

## About the Role

* Active Top Secret security clearance with SCI eligibility.
 * Certified Kubernetes Administrator and Terraform Associate certifications.
 * DoD 8140 certification aligned to the 451 System Administrator work role such as Security+, Cloud+, SSCP, CASP+, or CISSP.
 * 6+ years of systems or DevOps engineering experience, including 3+ years with Kubernetes and container technologies.
 * Experience designing, building, and maintaining Kubernetes or OpenShift container orchestration platforms.
 * Hands-on experience ensuring scalability, reliability, and security of containerized environments in enterprise or mission-critical settings.
 * Operational experience managing CI/CD pipelines, container build processes, and infrastructure automation.
 * Experience deploying, managing, and operating container runtimes, orchestration tooling, and supporting services.
 * Experience with Kubernetes ecosystem tooling including Rancher, Helm, Docker, Cilium, Rook, Ceph, MinIO, S3, and PortWorx.
 * Experience leading or assisting in design and implementation of complex integrated container platforms.
 * Ability to contribute immediately with minimal ramp-up in an operational environment.

Education Requirements

 * Bachelor's degree in Computer Science or a related technical discipline preferred.
 * Certified Kubernetes Administrator.
 * Terraform Associate.
 * DoD 8140-aligned certification such as Security+, Cloud+, SSCP, CASP+, or CISSP.

## Description

Our client seeks a Sr. Senior Platform Engineer III to design and operate Kubernetes platforms for mission-critical federal workloads. The role spans CI/CD, infrastructure automation, and platform reliability, performance, and security. The engineer will work within an Agile delivery model and communicate status and risks to stakeholders while resolving complex production issues., * Work as part of a collaborative and high-performing team delivering technical solutions within the highest levels of the federal government.

 * Design and operate Kubernetes and container platforms supporting mission-critical workloads.
 * Maintain and improve CI/CD pipelines and infrastructure automation.
 * Ensure platform scalability, reliability, performance, and security.
 * Participate in Agile execution, planning, and continuous improvement activities.
 * Troubleshoot and resolve production issues in complex environments.
 * Communicate platform status, risks, and technical decisions clearly to stakeholders.
 * Establish and maintain a high level of customer trust and confidence through technical expertise and professionalism.
 * Use creativity and engineering judgment to deliver innovative solutions that meet customer needs.