Software Developer - API

Job Role: Software Developer - API
Duration: 3 Months with possible extension
Location: Hopkins, MN or Irving, TX (Hybrid 3 days)

Job Description

• This role is part of the User Authorization Management (UAM) initiative focused on building and enhancing secure, scalable APIs to manage user access, permissions, and delegation capabilities across enterprise platforms.
• The project involves:
  • Designing and developing Spring Boot–based microservices and REST APIs
  • Extending capabilities through GraphQL APIs for flexible data access and aggregation 
  • Supporting integrations with multiple downstream systems and platforms (e.g., identity systems, reporting platforms)
  • Implementing secure access controls and authorization workflows
  • Driving test-driven development (TDD) using tools such as Karate and WireMock
  • Supporting modernization toward scalable, event-driven architecture (where applicable, Kafka is used for asynchronous communication)
• The initiative is critical to ensuring secure, compliant, and efficient user access management across digital banking systems.

• Core Development & Design
  • Design, develop, and maintain Spring Boot–based REST APIs and microservices
  • Build and enhance GraphQL APIs for optimized data retrieval and flexible client consumption
  • Implement end-to-end feature development from requirements to deployment
• Testing & Quality
  • Follow TDD practices using Karate, WireMock, JUnit, Mockito (similar testing patterns seen in current projects)
  • Develop and maintain unit, integration, and API-level test cases
  • Ensure high code quality, performance, and security compliance
• Integration & Collaboration
  • Integrate APIs with internal/external systems using REST, messaging, or event-driven patterns
  • Collaborate with product owners, architects, QA, and downstream teams
  • Participate in code reviews, design discussions, and backlog grooming
• Full Stack Contribution
  • Support UI integration using React (or similar frameworks) when required
  • Work closely with frontend teams or contribute directly to UI components
• DevOps & Deployment
  • Assist in CI/CD pipeline activities (build, deploy, monitor)
  • Troubleshoot issues across environments (Dev / UAT / Prod)
• Documentation & Process
  • Create API documentation (Swagger/OpenAPI, GraphQL schema)
  • Follow Agile processes including sprint planning, standups, and retrospectives

• Core Backend (Must Have)
  • Java Spring Boot (Microservices, REST APIs) – 5 years
  • Strong experience in API design and development
  • Experience with Microservices architecture
• Testing & Quality
  • TDD experience (Karate / WireMock / JUnit / Mockito) – 3 years
  • Strong understanding of API testing and automation
• Data & Integration
  • Experience with SQL / NoSQL databases
  • Understanding of API integrations and distributed systems
• Frontend / Full Stack
  • Working knowledge of React (or similar UI frameworks) – 2 years
• GraphQL
  • Hands-on experience with GraphQL API development – 2 years
• DevOps / Tools
  • Experience with:
    • Git / CI-CD (Jenkins or similar)
    • Containerization (Docker preferred)
    • Agile methodologies

• Experience with Kafka or event-driven architecture
• Experience with YugabyteDB or distributed databases
• Knowledge of OAuth2 / security frameworks (relevant for Auth/UAM domain)
• Experience with cloud platforms (AWS/Azure)
• Familiarity with API Gateway / API Lifecycle management
• Exposure to high-scale, financial or banking systems
• Strong debugging, problem-solving, and performance tuning skills
• Excellent communication and ability to work in a cross-functional team