Senior Java​/Batch Modernization Developer

Analyze existing Web Sphere Batch jobs and migrate them to JBatch on Open Liberty, redesigning steps, flows, and batch lifecycle where needed. Refactor and modernize shared libraries, utility code, and common batch components. Rewrite or optimize SQL queries for efficiency, reducing duplicate execution and improving throughput. Apply Spring caching, Spring integration patterns, and modern dependency injection. Build comprehensive automated tests for each migrated batch job to ensure correctness and performance.

Evaluate existing logic for opportunities to consolidate or simplify to align with the modern client architecture. Work closely with client and Intertech teams to ensure consistency across numerous batch processes.

Design and implement backend services using Java, Spring, and RESTful architectural principles. Collaborate with architects on rewriting backend logic to eliminate legacy dependencies and align with service based architecture standards. Integrate batch jobs with modern APIs, services, and messaging components as required. Contribute to architectural decisions on service boundaries, data flows, exception handling, and resiliency patterns. Apply enterprise patterns around transactions, concurrency, caching, and resource management.

Review and refactor SQL, batch logic, and backend execution to improve reliability and execution time. Implement best practices in CI/CD, automated testing, build pipelines, dependency management, and code quality tooling. Reduce unnecessary I/O, improve memory use, and optimize logic across batch workflows. Create test automation around integrations, data scenarios, and service interactions. Ensure stability and correctness across DEV, QA, UAT, PROD environments as noted in client batch deployment expectations.

Help mentor client developers new to modern Spring, JBatch, Open Liberty, or REST. Translate complex architectural concepts for cross-functional teams and stakeholders. Work with product owners, architects, QA, and client SMEs to refine requirements and ensure technical clarity. Provide guidance on modernization strategy, migration roadmaps, and incremental delivery approaches. Collaborate within a co-development model where client and Intertech work as a joint delivery team.