Senior DevSecOps Engineer

Overview

At Leidos, we're not just delivering solutions - we're pioneering the future of defense and intelligence technology. Our diverse teams unite around a singular purpose: empowering our customers to succeed in their critical missions. We believe in integrity, investing in communities, and building sustainably for tomorrow.

Shape the future of digital defense.

Our Digital Modernization sector is at the forefront of next-generation technology, architecting cutting-edge solutions in cyber defense, logistics optimization, security operations, and decision intelligence. We are the minds behind the mission-critical systems that keep our nation secure.

Your opportunity to lead transformation.

We’re seeking a Senior Dev Sec Ops  Engineer to spearhead cloud initiatives for the United States Coast Guard at C5

ISC in Alexandria, VA. In this role, you’ll architect the cloud infrastructure that powers critical Coast Guard operations, driving innovation that directly impacts national security.

Ready to engineer solutions that matter?

We are seeking a highly capable Senior Dev Sec Ops  Engineer with expertise in AWS, Azure, and Python. This individual will be responsible for developing in scalable cloud-native solutions, and ensuring best practices across architecture, development, deployment, and security. This is a hands-on technical role that requires rolling up your sleeves to architect, code, debug, and mentor.

• Design, implement and maintain end-to-end CI/CD pipelines in Harness (CI + CD), including builds, tests, artifact publishing, and progressive deployments
• Operate Harness Delegates/agents and configure execution environments (Kubernetes, cloud VMs, Harness Cloud) for pipeline execution
• Implement pipeline governance: RBAC, policy-as-code (OPA), approval gates and compliance checks; automate rollbacks and continuous verification
• Improve build & test speed using Harness features (cache intelligence, test intelligence) and optimize artifacts/caching
• Create/review YAML pipeline definitions, maintain pipelines in Git (Harness Git Experience/.harnessrepo approach), and enable Git Ops workflows where appropriate
• Design, implement, and maintain CI/CD pipelines for secure, automated software delivery
• Develop infrastructure as code (IaC) using tools such as Terraform, Ansible, or Cloud Formation
• Embed security best practices into the SDLC and CI/CD processes
• Implement automated security tools for vulnerability scanning, SAST/DAST, and container security
• Collaborate with security teams to ensure compliance with organizational and industry security standards (e.g., NIST, DoD, ISO)
• Deploy and manage applications on cloud platforms such as AWS, Azure, Google Cloud or Oracle Cloud Infrastructure (OCI)
• Maintain high availability, scalability, and performance of cloud-based systems
• Configure and optimize container orchestration platforms (e.g., Kubernetes, Docker)
• Establish proactive monitoring solutions to ensure system reliability and availability
• Work closely with cross-functional teams, including developers, QA, and security professionals
• Mentor junior team members and contribute to continuous improvement of Dev Sec Ops  practices

• Bachelor's degree and 12+ years of experience or Master's with 10+ years of prior relevant experience, additional years of experience accepted in lieu of a degree in an IT discipline
• Excellent customer service skills, with experience in a customer-facing role for a minimum of 6 years
• Minimum 7+ years of administration experience with cloud-based applications (MS O365, SharePoint, Azure AD, AWS)
• Proven experience implementing pipelines in Harness (CI + CD) or other modern CI/CD platforms; comfortable with visual & YAML pipeline editors
• Proficiency with Red Hat Open Shift services
• Proficiency in programming/scripting languages (e.g., Python, Java, Bash, Go)
• Experience with configuration management and orchestration tools (e.g., Terraform, Ansible, Puppet)
• Deep understanding of CI/CD tools (e.g., Harness, Jenkins, Git Lab CI, Git Hub Actions, Azure Dev Ops)
• Hands-on experience with containerization and orchestration (e.g., Docker, Kubernetes)
• Stro…