Lead Application Developer

About Us

Onyx Government Services, LLC., is a Service-Disable Veteran-Owned Small Business (SDVOSB), headquartered in Fairfax, Virginia. We specialize in data management, integration, and analysis solutions to provide decision-ready information to Command and Control (C2) and Decision Support Systems. We have demonstrated expertise in the field of Information Technology, database & COTS integration, and custom software development.

Onyx pairs subject matter and functional experts with developers to provide high quality, tailored solutions. In support of our various efforts, we have developed the Onyx Data Management Toolkit, a combination of Agile Development principles, COTS Integration, and custom software, to deliver flexible, cost-effective solutions to a variety of Department of Defense, Intelligence Community, and Law Enforcement agencies.

Suitland, MD

U.S. Citizenship required

This position is contingent upon contract award.

We are seeking a Subject Matter Expert (SME)–level Lead Application Developer to lead the design and development of new and modernized applications for the U.S. Census Bureau’s Decennial Transformation and Application Modernization (DTAM) effort. This role provides technical and management leadership on major application development assignments, applying coding and documentation best practices and adhering to USCB technical and security requirements and SDLC frameworks.

The Lead Application Developer delivers cloud-native, microservices-based solutions using a Dev Sec Ops  methodology spanning front-end, back-end, and full-stack development. Decision-making and domain knowledge may have a critical impact on overall program implementation. May supervise others.

• Expert experience developing cloud-native applications using microservices, containerization, and serverless architectures
• Strong front-end, back-end, and full-stack development skills across multiple languages and platforms
• Demonstrated experience implementing Dev Sec Ops CI/CD pipelines and secure coding practices
• Experience with version control, automated testing, and deployment automation (IaC)
• Familiarity with Section 508 accessibility compliance and secure application design

• Experience modernizing legacy applications to cloud-native architectures
• Familiarity with AI/ML, business intelligence, or robotic process automation integration
• Experience with scaled agile (SAFe) delivery in a federal environment
• Excellent written and verbal communication skills, including technical briefing to stakeholders

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field
• 15+ years of experience providing technical and management leadership on major application development assignments (SME level)

• Cloud certification (AWS / Azure / Google)