Senior DevSecOps Engineer

Leidos; Alexandria (VA); On-site; USD 131,000 - 237,000; Full time

Job summary

Leidos is seeking a seasoned Digital Modernization DevSecOps leader to design and implement secure, automated DevSecOps platforms for US Coast Guard mission systems. You will drive CI/CD, IaC, GitOps, and security automation across AWS GovCloud and Kubernetes, while ensuring observability and compliance.

The role emphasizes platform engineering for critical national security missions, with extensive cloud, security, and DevOps responsibilities, and an opportunity to shape modernization efforts

Qualifications

• Bachelor's Degree and 12+ years in IT with 5+ years in DevSecOps.
• Expert-level knowledge of GitLab CI and building complex pipelines.
• Strong proficiency with Kubernetes and container orchestration.
• Hands-on Terraform in AWS GovCloud environments.
• Hands-on GitOps using Argo CD and declarative configurations.
• Observability tools such as Prometheus, Grafana, and a centralized logging stack (Loki/Vector/Fluentd) are required.

Responsibilities

• Architect and maintain Golden Path CI/CD templates and automate software supply chain.
• Develop modular Terraform code to provision AWS GovCloud and Kubernetes infrastructure.
• Deploy and maintain core platform services (GitLab, Jira, Confluence, Vault) and manage GitLab Runner on Kubernetes.
• Automate security controls and compliance checks (NIST RMF, OPA, Kyverno).
• Implement and manage observability with logging, metrics, and dashboards.

Skills

GitLab CI

Kubernetes

Terraform

Argo CD

Prometheus

Grafana

Vault

Bash Python Go

Education

Bachelor's Degree in IT or related field

Tools

AWS GovCloud

OpenShift

Cosign/Sigstore

Job description

Join us in transforming how technology serves those who serve.

At Leidos, we're not just delivering solutions - we're pioneering the future of defense and intelligence technology. Our diverse teams of innovators unite around a singular purpose: empowering our customers to succeed in their critical missions. We believe in leading with integrity, investing in our 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're the minds behind the mission-critical systems that keep our nation secure.

Your opportunity to lead transformation.

Join the core engineering team building the new USCG DevSecOps platform that will be used by hundreds of mission-application developers across the Coast Guard. If you are an expert in building secure, automated platforms and want to make a tangible impact on a critical national security mission, this role is for you.

Primary Responsibilities

• CI/CD & Supply Chain Security: Architect and maintain "Golden Path" CI/CD templates using GitLab CI Components. Engineer and automate the software supply chain, integrating SAST, SCA, container scanning, SBOM generation and artifact signing with Cosign/Sigstore.
• Infrastructure as Code (IaC) & GitOps: Develop modular Terraform code to provision and manage the platform's AWS GovCloud and Kubernetes infrastructure. Implement and manage all cluster-level and application configurations declaratively using GitOps (Argo CD), Kustomize, and Helm.
• Platform Engineering: Deploy, configure, and maintain the core platform services-including GitLab, Jira, Confluence, and HashiCorp Vault. Manage the GitLab Runner architecture on Kubernetes, ensuring fleet-wide security and scalability.
• Security & Compliance Automation: Implement and validate the technical controls such as NIST 800-53 RMF based Authority to Operate (ATO). Automate security hardening and compliance checks using tools like OPA, Kyverno.
• Observability & Monitoring: Implement and manage the platform's observability stack, including centralized logging with Vector/Loki, metrics with Prometheus, and dashboards with Grafana. Configure secure log forwarding to the enterprise SIEM.

Basic Qualifications

• Bachelor's Degree and 12+ years in an IT discipline, with 5+ years in a hands-on DevSecOps role.
• Expert-level knowledge of GitLab CI, including building complex, reusable pipeline templates.
• Strong proficiency with Kubernetes
• Deep, practical expertise with Terraform in an AWS environment (GovCloud highly preferred).
• Hands-on experience implementing GitOps principles with Argo CD.
• Hands-on experience with observability tools, including Prometheus, Grafana, and a centralized logging stack (e.g., Loki, Vector, or Fluentd). Experience configuring log shipping to a SIEM.
• Solid understanding of cloud-native security, including container hardening and secrets management with HashiCorp Vault.
• Proficiency in a scripting language such as Bash, Python or Go

Preferred Qualifications

• Experience in a DoD/Federal environment with DISA STIG and RMF compliance mandates.
• Experience with AWS EKS, Red Hat OpenShift
• Software supply chain security tools (Cosign, Syft, Grype).
• An existing DoD security clearance.
• Certifications- Must have at least 1 certification to be considered.
• CNCF Kubernetes certifications: CKA or CKS or CKAD
• AWS Certified: DevOps Engineer or Solution Architect Associate or Security
• HashiCorp Certified: Terraform Associate

If you're looking for comfort, keep scrolling.

At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Pay Range

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.