DevSecOps Engineer; Cloud & Platform Engineering

Concept Solutions, LLC (CS) is seeking an experienced Dev Sec Ops  Engineer to support a mission-critical application modernization program for a Department of War (DoW) customer. This position is contingent upon contract award, with an anticipated start in October 2026.

This initiative will transform how users access and interact with a portfolio of production applications by creating a unified platform featuring single sign-on, a common user interface, and a repeatable approach for integrating applications.

As a Dev Sec Ops  Engineer, you will play a key role in building, securing, and maintaining the cloud infrastructure and automated deployment pipelines that support this modernization effort. You will work with modern cloud-native technologies while helping ensure existing mission-critical applications remain operational throughout the transition.

This is an opportunity to contribute to a high-impact federal modernization initiative using AWS Gov Cloud, Kubernetes, infrastructure as code, and secure CI/CD practices.

• Build, configure, and maintain infrastructure as code using Open Tofu and Helm within Kubernetes environments hosted on AWS Gov Cloud.
• Support the development and operation of a secure, scalable, and reliable application platform.
• Maintain consistency across environments by promoting the same code through established deployment processes.

• Design, build, and maintain CI/CD pipelines within the customer's Git Lab environment.
• Integrate automated build, security scanning, policy enforcement, testing, evidence collection, and deployment stages into delivery pipelines.
• Apply container security and hardening practices to support secure application deployments.

• Operate and maintain the integration gateway and observability stack to support platform reliability and performance.
• Support ongoing platform operations while maintaining the stability of existing production applications.
• Collaborate with technical teams to enable secure, repeatable application onboarding and deployment processes.

• 6+ years of experience in Dev Ops, Dev Sec Ops , or platform engineering.
• Hands-on experience with Kubernetes and containerized application environments.
• Experience with infrastructure as code using Terraform or Open Tofu.
• Experience using Helm for Kubernetes application deployment and management.
• Experience developing and maintaining CI/CD pipelines using Git Lab CI.
• Knowledge of container hardening and secure deployment practices.
• Experience working with AWS Gov Cloud.

• Experience with Envoy for gateway or proxy functionality.
• Familiarity with Open Telemetry for application and infrastructure observability.
• Experience working with Iron Bank container images.
• Active Secret security clearance.
• Ability to meet Tier 5 eligibility requirements if privileged administration is required.

• Location:
  
  Hybrid. Work may be performed from CS headquarters in Reston, Virginia, and approved remote locations within the United States, with on-site work at Government facilities in Northern Virginia and Maryland as required. Government-furnished equipment will be used for all access to Government environments.
• Schedule:
  
  Full-time, 40 hours per week, Monday through Friday, with core hours of 9:00 a.m. to 3:00 p.m. Eastern. The team operates in two-week sprints, with a customer demonstration each sprint.
• Travel: 0–10%, within the Washington, DC metropolitan area.
• Security Requirement: U.S. citizenship required. Must be eligible to obtain and maintain a DoD security clearance. An active Secret clearance or higher is strongly preferred and may allow an earlier…