Java API / Publication Engineer
Sr. Backend Java Developer – MDM PlatformJob Role: Java API / Publication Engineer Experience: 10+ yearsLocation: Chicago, ILType: Full-time - HybridJob SummaryWe are looking for a Senior Backend Java Developer to design and build the core backend services of a Master Data Management platform for a leading global credit ratings organization. You will engineer the server-side components that power Security Master, Entity Master, and Reference Data workflows — including data ingestion, processing, match-merge engines, workflow orchestration, and integration with downstream systems — using Java Spring Boot on AWS.Key ResponsibilitiesDesign and develop backend microservices using Java Spring Boot for MDM core functions: data ingestion, validation, match-merge, golden record management, and stewardship workflows.Build RESTful APIs consumed by the React UI and downstream enterprise systems, following OpenAPI/Swagger standards.Implement business logic for survivorship rules, conflict resolution, and golden record computation for Security and Entity Master data.Integrate with AWS services: RDS, S3, SQS/SNS, Lambda, ECS/EKS, API GatewayBuild workflow orchestration for stewardship tasks using AWS Step Functions or equivalent.Implement security controls: OAuth2/JWT authentication, role-based access control (RBAC), and data masking.Write unit and integration tests; participate in code reviews and enforce coding standards.Collaborate with the MDM Architect on design decisions and contribute to HLD/LLD documentation.Support DevOps pipelines (CI/CD) for containerized deployments on Docker/EKS.Participate in Agile ceremonies and contribute to sprint planning, estimation, and retrospectives.Education & ExperienceBachelor’s degree in computer science or related field.10+ years of backend software development experience with at least 7 years on Java Spring Boot.Strong experience with microservices architecture, RESTful API design, and event-driven patterns.Proficiency with AWS cloud services: RDS, S3, SQS, Lambda, ECS/EKS, API Gateway.Experience building data processing pipelines for high-volume, low-latency financial data.Solid understanding of OAuth2, JWT, and API security best practices.Experience with Docker, Kubernetes, and CI/CD tools (Jenkins, GitHub Actions).Domain exposure to financial data — securities, reference data, or MDM — is strongly preferred.Knowledge, Skills & AbilitiesDeep Java expertise: Spring Boot, Spring Data JPA, Spring Security, Spring Batch.Microservices design patterns: CQRS, event sourcing, saga, API gateway.Performance tuning: JVM optimization, connection pooling, database query optimization.Ability to translate complex domain rules (golden record logic, survivorship) into clean, testable code.Strong problem-solving skills and ability to drive technical decisions in a collaborative team environment