Experience & Case Studies

Enterprise intake platform for large-scale document processing — Remote

• Building Java Spring Boot microservices for an enterprise, API-driven intake platform that lets consumer applications securely store, retrieve, update, and search submitted files and metadata at scale, for millions of records annually.
• Working across a cloud-native stack (AWS, S3, OpenSearch, OpenShift) with RESTful and multipart APIs, deployed via GitHub Actions CI/CD.
• Handling change-stream monitoring, batch reindexing, and queue-driven data consolidation to keep search indices current under high write volume.

Error resolution platform for high-volume form validation — Remote

• Owned microservices architecture decisions independently, including service boundaries and message contracts for upstream GMF MOD integration — when ticket requirements left gaps, resolved them by going directly to the source (Functional Specification Packages and the Internal Revenue Manual) rather than waiting on clarification.
• Architected and built Spring Boot microservices to accept and validate 20+ form types with complex, form-specific rules logic, supporting millions of submissions annually.
• Engineered a version-aware payload conversion layer using polymorphic deserialization and a Spring factory pattern with automatic bean detection — full backward/forward compatibility with zero-downtime migration of existing records.
• Built a JSON schema-driven multi-form rendering system in React 19 / Next.js 15 with dynamic field visibility, conditional logic, role-based access control, and real-time validation — new form types ship as configuration, not code.
• Integrated AI/LLM workflows into the error-resolution pipeline to improve automated detection accuracy and processing efficiency at scale.
• Implemented a scheduled Spring Batch step that automatically promotes stalled records past a 24-hour SLA window to approved status — eliminating manual examiner intervention for that case.
• Traced a silent Kafka message-drop issue the upstream producing team couldn't reproduce, using offset-level topic analysis and a JUnit test that reproduced the failure to force a concrete cross-team fix.
• Served as a go-to technical resource for QA testers across ERA, answering system-behavior questions directly during test cycles to unblock test case design and triage.
• Delivered demos and code walkthroughs for business stakeholders and legacy-system staff — covering both UI wireframes and backend architecture — translating how the modernized application worked end-to-end for an audience still oriented around the old mainframe system.
• Owned end-to-end delivery across six services, shipping 500+ changes in under 6 months in a high-velocity Agile environment.

Legacy mainframe-to-Java modernization, plus a tooling initiative — Mechanicsburg, PA (Hybrid)

• Backend Java developer on a 27-member team modernizing a monolithic legacy system into Java, one of the firm's two largest active modernization programs.
• Led technical-assistance sessions for sponsored Java/Spring Boot trainings and served as an onboarding buddy, mentoring new team members through backend and full-stack fundamentals.
• Used PI planning and sprint cadences to help drive projects from initiation to delivery — coordinating tasks, prioritizing work, and engaging clients to keep complex efforts on schedule.
• Co-led a 6-person side initiative converting 50+ legacy VBA tools into Java and modern web apps, achieving a 30× performance improvement and shipping to 120+ engineers via GitHub — earned an Exceptional performance review for the combined impact.