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Apex Systems Logo Apex Systems · IT - Software Development

API Developer

United States, Denver 50.00 - 75.00 USD / Hour · Job Posted April 01, 2026
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Job Description

The VA Lighthouse Program is a U.S. Department of Veterans Affairs initiative to modernize and streamline access to VA data and services through secure, reliable, scalable application programming interfaces (APIs), improving how veterans, partners, and internal teams access critical information. The AI & Engineering team supports the VA Lighthouse platform to accelerate digital delivery, modernize technology and operations, and drive measurable improvements for public sector clients through collaboration, innovation, and continuous improvement. As the API Developer you are responsible for designing, developing, and maintaining Application Programming Interfaces (APIs) that enable communication between different software systems.

Job Responsibility

  • Define and document API specifications, endpoints, data models, and protocols - REST, GraphQL
  • Build and implement APIs using programming languages and frameworks such as Java, Python, Ruby and .net
  • Ensure seamless integration of APIs with internal and external systems, applications, and third-party services
  • Write unit, integration, and end-to-end tests for APIs. Debug and resolve issues to ensure reliability and performance
  • Create and maintain clear, comprehensive documentation for API consumers, including usage examples and best practices
  • Implement authentication, authorization, encryption, and other security best practices to protect data and services
  • Monitor and optimize API performance, scalability, and reliability
  • Manage API versions and ensure backward compatibility as APIs evolve
  • Work closely with front-end and back-end developers, architects, QA engineers, and other stakeholders to deliver robust solutions
  • Provide ongoing support, troubleshoot issues, and implement enhancements based on user feedback

Requirements

  • Java, SpringBoot & SpringBatch framework
  • GitHub, Jaeger, GitHub Actions, Git Releases
  • mySQL
  • Oracle
  • RDS
  • Document DBs (DynamoDB, MongoDB)
  • Ruby
  • Python
  • AWS Cloud
  • Backstage.io
  • Open API
  • OpenTracing
  • Docker, Kubernetes, Helm
  • Familiarity with VA Lighthouse APIs

What we offer

  • Medical, dental, vision, life, disability, and other insurance plans
  • ESPP (employee stock purchase program)
  • 401K program with company match after 12 months
  • HSA (Health Savings Account on the HDHP plan)
  • SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
  • Corporate discount savings program
  • On-demand training program
  • Access to certification prep and a library of technical and leadership courses/books/seminars after 6+ months
  • Certification discounts and other perks to associations that include CompTIA and IIBA
  • Dedicated customer service team
  • Certified Career Coach
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