About this role
At Credence, we support our clients’ mission-critical needs, powered by technology. We provide cutting-edge solutions, including AI/ML, enterprise modernization, and advanced intelligence capabilities, to the largest defense and health federal organizations. Through partnership and trust, we increase mission success for war-fighters and secure our nation for a better future.
We are privately held, are repeatedly recognized as a top place to work, and have been on the Inc. 5000 Fastest Growing Private Companies list for the last 12 years. We practice servant leadership and believe that by focusing on the success of our clients, team members, and partners, we all achieve greater success.
Credence has an immediate need for a Mid to Senior COBOL Developer / Solutions Architect to support our AI/ML team. This role is critical to bridging legacy COBOL systems and modern cloud native architectures to work on-site in McLean VA.
The candidate will act as a technical lead and translator, working across legacy codebases, modernization tools, and modern engineering teams to ensure accurate business logic extraction, successful code conversion, and validated operational outcomes.
Legacy System Analysis & Business Logic Extraction
Analyze COBOL, JCL, and DB2 components of legacy systems to understand existing business processes and data flowsCOBOL experience on the IBM AS 400 is an immediate must have specifically IBM I (AS 400) and Z/os later in Phase IISupport reverse engineering efforts to extract and validate business rules, interfaces, and non‑functional requirementsCollaborate with Government SMEs and sustainers to ensure functional accuracy and mission alignmentModernization & Solution Architecture
Guide modernization efforts using AWS Transform, Reimagine, Kiro, and/or Blu Age, as appropriateSupport forward engineering of modernized services (Java, C#, or Node.js) based on extracted business logicContribute to defining cloud native, microservices-based architectures aligned with DoW standardsIntegration, Testing & Validation
Support generation and execution of automated test cases to validate converted code against legacy outputsParticipate in User Acceptance Testing (UAT) Documentation & Knowledge Transfer
Produce clear technical documentation describing legacy behavior and modernized solutionsSupport knowledge transfer to Government personnel to reduce long-term reliance on scarce COBOL skillsRequirements
Must have a minimum of 5+ years of hands-on experience with COBOL in large, mission critical systemsMust have experience with mainframe and IBM I (AS/400) environments, including JCL and DB2Must hold demonstrated ability to understand and document complex business logic from legacy systemsStrong communication skills and ability to collaborate with mixed legacy and modern engineering teams
Desired / Preferred Qualifications
Experience with legacy system modernization or refactoring projectsFamiliarity with cloud platforms (AWS preferred) and modern application architecturesExposure to Java, C#, or Node.js in modernization or re‑engineering effortsUnderstanding of logistics, supply chain, or sustainment systemsExperience working alongside automated code transformation tools (e.g., AWS Transform, Reimagine, and/or Blu Age)Experience working in DoW (formerly DoD) or Federal enterprise environmentsPrior involvement with DoW (formerly DoD) systems preferredMust be a US Citizen and with the ability to obtain a Defense Secret ClearanceActive Clearance is preferredOnsite: McLean VA Benefits
Health Care Plan (Medical, Dental & Vision)Retirement Plan (401k, IRA)Life Insurance (Basic, Voluntary & AD&D)Paid Time Off (Vacation, Sick & Public Holidays)Family Leave (Maternity, Paternity)Short Term & Long Term DisabilityTraining & DevelopmentWellness Resources