DevSecOps Engineer

Apply now: DevSecOps Software Engineer, Onsite - Manassas, VA. Start date is ASAP for this contract position. Job Title: DevSecOps Software Engineer – Mid Level and Senior Level Positions Location: Onsite, Manassas, VA Start Date: ASAP Duration: 3 year contract Compensation: Mid Level – 55-65/hr W2 Senior Level – 70-85/hr W2 Benefits: Eligible for Health, Dental, Vision, and 401K Visa Sponsorship: Not eligible for visa sponsorship Job Description The client is seeking a DevSecOps Software Engineer to modernize a large-scale legacy codebase by designing advanced GitLab CI/CD pipelines and driving the transition from monolithic to modular builds within a cross-functional engineering team. Job Summary Evaluate a large, complex legacy codebase and assess the current CI/CD pipeline to create a strategic modernization roadmap enabling modular builds. Collaborate with stakeholders to validate and ensure end-to-end quality and effectiveness of all proposed build enhancements. Identify technical obstacles stemming from technical debt or system requirements and develop pragmatic solutions to resolve them. Build expertise with the client's catalog of shared CI/CD capabilities and integrate applicable tools into proposed modular build enhancements. Design and implement GitLab CI/CD pipelines with advanced job separation, artifact flow, and dependency management across a large codebase. Apply software architecture principles, including micro-service patterns, API contracts, and service boundaries, to support legacy system decomposition. Contribute backend and build automation expertise using C/C , Java, Make, Gradle, and Bash scripting to troubleshoot compilation failures and pipeline issues. Minimum Requirements Proven experience with GitLab for source-code management and orchestrating complex software builds, including advanced pipeline architecture and artifact flow between jobs. Hands‑on software engineering experience with large-scale codebases in C, C , and/or Java. Strong familiarity with build automation tools and scripting languages, including Make, Gradle, and Bash. Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or a comparable STEM discipline. Must be able to obtain or activelyhold an active Secret security clearance . Preferred Qualifications Demonstrated leadership in architecting and modernizing large, complex legacy software systems with hands‑on C/C or Java expertise. Experience with DevOps and automation practices, including Infrastructure-as-Code (IaC), automated testing, and release pipeline construction.Proven track record designing and delivering micro‑services solutions, including API design using REST, gRPC, GraphQL, and OpenAPI. Familiarity with SAST tools such as Fortify or comparable solutions, and binary management repositories such as Artifactory or Nexus. Experience with containerization and orchestration technologies including Docker, Docker Compose, Kubernetes, and Ansible. Strong foundation in software design fundamentals such as design patterns, architectural styles, and SOLID principles. Prior experience migrating from legacy source control and build systems (e.g., Gerrit/Jenkins) to GitLab. #J-18808-Ljbffr