Backend Engineer at Veltiston AI

Built and maintained Spring Boot services for a distributed operations platform, implementing REST APIs and backend workflows for resource planning, assignment, scheduling, state transitions, and operational reporting. Designed the orchestration layer between transactional services and an external computation engine, using REST contracts to coordinate long-running jobs, asynchronous state updates, and user-triggered workflow changes. Improved reliability of stateful backend operations with audit logging, idempotent workflow tracking, database-lock retry handling, tenant-aware configuration, and recovery paths for rebuilding derived state. Built a Python asyncio concurrency simulator covering 38 workflow mutation scenarios, with configurable multi-agent execution to stress-test locking, race conditions, consistency boundaries, failure recovery, and post-run validation. Extended the simulator with 10 data import pipelines, snapshot creation, metrics, structured logging, and a 3-stage dat