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Sr. DevSecOps Engineer with Security Clearance

Seneca Resources, LLCReston, VA🇺🇸United StatesPosted Sep 17, 2026

Why This Role Stands Out

Advance your career as a Sr. DevSecOps Engineer in a hybrid Washington D.C. role where you'll design and implement secure development pipelines and integrate cutting-edge security practices. This position offers competitive compensation and the opportunity to mentor junior engineers while ensuring STIG compliance and delivering secure software solutions. If you possess a TS/SCI with CI Poly clearance and a passion for robust security, you'll thrive in this impactful role.

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Reston, VA, United States
Posted
23 hours ago

Job Description

Position Title: Sr.

DevSecOps Engineer
Location: Washington, DC
Clearance Required: TS/SCI with CI Poly
Compensation: Competitive, based on experience
Employment Type: Full-Time Overview: We are seeking a Senior DevSecOps Engineer to play a critical role in designing, implementing, and maintaining secure and efficient software development and deployment pipelines. You will collaborate with cross-functional teams to integrate security practices seamlessly into the development and operations lifecycle, ensuring the delivery of high-quality, secure, and reliable software solutions.

What You'll Do: Collaborate with customers and internal teams to design and implement technical solutions across multiple classification environments, working independently or collaboratively to address complex requirements. Develop CI/CD pipelines from scratch in GitLab and Jenkins with integrated security scanning and STIG compliance validation, providing expert guidance on pipeline troubleshooting and DevSecOps best practices.

Create and maintain Infrastructure as Code (IaC) templates, primarily using CloudFormation, to architect highly available, resilient, and secure DevSecOps tool infrastructure across AWS environments (GovCloud, C2S, TC2S) while ensuring STIG compliance. Lead advanced troubleshooting by analyzing system and application logs via Linux command-line tools, conducting root cause analysis, and developing mitigation strategies for service degradation.

Provide expert guidance to development teams on secure coding practices, STIG compliance, and vulnerability remediation in support of ATO efforts, while mentoring junior engineers through code reviews, IaC best practices, and technical documentation. What You'll Need to Succeed: Active TS/SCI with CI Poly security clearance. Certification to satisfy DoD 8140/8570 (e.g., Security+ or equivalent).
5+ years as a DevSecOps Engineer, DevOps Engineer, or similar. Strong hands-on Linux experience.

Experience with designing, deploying, and managing production-grade Kubernetes (K8s) or OpenShift clusters via automation with Ansible and Terraform and/or CloudFormation in on-prem and cloud environments. Experience with CI/CD pipelines (e.g. GitLab or equivalent) and containerization. Experience with Helm chart development and STIGs (preferred).

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