Software Engineer (DevSec Ops)
About the role
MTSI is seeking to hire a Software Engineer (DevSecOps) with a strong background in secure cloud platform engineering, Kubernetes operations, and policy‑as‑code enforcement. This senior role supports mission‑critical defense programs and requires deep technical expertise, leadership ability, and hands-on experience in high-assurance environments.
Key Responsibilities
Manage and operate Azure Government (IL5) and Azure Secret (IL6) environments
Architect secure Kubernetes platforms using FluxCD, GitLab CI/CD, and GitOps methodologies
Build and maintain Terraform configurations for Azure, GitLab, Artifactory, and developer platforms
Deploy and administer Coder Enterprise v2 for secure cloud-based development
Develop hardened container images and Helm releases for regulated workloads
Implement policy‑as‑code using OPA, Rego, Gatekeeper, and advanced validation pipelines
Engineer air-gapped deployment workflows and secure artifact transfer mechanisms
Collaborate across teams to ensure compliance, security, and platform reliability
Required Qualifications
Must be able to obtain and maintain a secret level clearance
US citizenship is required.
Bachelor's degree in computer science or related STEM field.
6+ years of experience in software engineering, DevSecOps, or secure cloud/platform engineering
Security+ certification is required.
Preferred Qualifications
10+ years of relevant professional experience
Masters degree
active Secret or TS level clearance
Experience supporting Department of Defense or intelligence community systems
Responsibilities
- Manage and operate Azure Government (IL5) and Azure Secret (IL6) environments
- Architect secure Kubernetes platforms using FluxCD, GitLab CI/CD, and GitOps methodologies
- Build and maintain Terraform configurations for Azure, GitLab, Artifactory, and developer platforms
- Deploy and administer Coder Enterprise v2 for secure cloud-based development
- Develop hardened container images and Helm releases for regulated workloads
- Implement policy‑as‑code using OPA, Rego, Gatekeeper, and advanced validation pipelines
- Engineer air-gapped deployment workflows and secure artifact transfer mechanisms
- Collaborate across teams to ensure compliance, security, and platform reliability
Qualifications
- Must be able to obtain and maintain a secret level clearance
- US citizenship is required
- Bachelor's degree in computer science or related STEM field
- 6+ years of experience in software engineering, DevSecOps, or secure cloud/platform engineering
- Security+ certification is required
Skills mentioned
About Modern Technology Solutions, Inc. (MTSI)
Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of global importance in the critical mission areas of missile defense, cyber security, intelligence, unmanned/autonomous systems, aviation, space, and homeland security. The MTSI mission is to make important and lasting contributions to the nation's defense and security by providing leadership and best- value solutions to solve America's most technically challenging strategic problems. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com. For current MTSI job openings, please visit www.mtsi-va.com/careers.