Java Developer with Strong GraphQL
Dice is the leading career destination for tech experts at every stage of their careers. Our client, NimbusAITech LLC, is seeking the following. Apply via Dice today!Senior Backend Java Engineer (GraphQL Migration Expert)Location: McLean, VA (Candidates must currently live in the area – no relocation)About The RoleWe''re seeking a hands-on Senior Backend Java Engineer to drive the migration of REST-based microservices to GraphQL endpoints on our modern CORE platform. This is an active coding role (not tech lead or architect), focused on collaborating with GraphQL API partners for field mapping, query construction, and ensuring data integrity/response time parity between legacy and new systems. If you''re a GraphQL expert with deep Java/Spring Boot experience, we need you!Candidate PrioritiesFirst Priority: Prior Capital One experienceSecond Priority: Strong financial domain candidates with 8+ years of proven GraphQL expertiseNote: Recent interviews for this role focused exclusively on GraphQL – we''re looking for true experts who can hit the ground running.Required Technical SkillsJava: 8+ years of hands-on development experienceSpring Boot: Strong experience refactoring and migrating existing microservicesGraphQL: Proven experience consuming GraphQL APIs in Java/Spring Boot, including field mapping, query construction, and response handlingAWS Fargate/ECS: Hands-on operational experience deploying, managing, and troubleshooting containerized servicesMicroservices: Solid understanding of REST-based microservices architecturePerformance Testing/Validation (Strong Plus): Benchmarking response times and data integrity between legacy and modern systemsKey ResponsibilitiesMigrate REST microservices to consume GraphQL endpoints on the CORE platformPartner with GraphQL API teams to map legacy fields to GraphQL equivalentsBuild, test, and validate GraphQL queries for data accuracy and performanceDeploy and manage services on AWS Fargate/ECSConduct performance benchmarking to ensure parity with legacy systemsSoft SkillsExceptional communication and analytical skills to collaborate cross-teamMeticulous attention to detail for field mapping and migration accuracyWhy Join Us?Work on cutting-edge GraphQL migrations in a high-impact financial environment. Competitive contract rates for the right expert.Apply Now: Send your resume highlighting GraphQL projects and Capital One/financial experience to Local McLean, VA candidates only.