CRM / ERP Platform
Full-timeAvrora Holding · Backend Developer · Dec 2025 — May 2026
Internal CRM/ERP platform running day-to-day operations across the holding. I built core backend modules as NestJS and Go (Gin) microservices on PostgreSQL, and moved inter-service communication onto events.
- daily users
- 500+
- modules shipped
- 10+
- GraphQL/REST endpoints
- 40+
- heaviest query time
- −40%
- ▸Migrated to Kafka/NATS events, removing 10 synchronous dependencies so services deploy independently
- ▸gRPC APIs between services; GraphQL and REST at the edge
- ▸Co-designed a BPM workflow engine (state transitions, task routing) automating 15+ business processes
- ▸Indexing and query restructuring cut the heaviest SQL by 40%; background-job throughput doubled
- ▸Unit and e2e coverage, then a refactor that shrank the codebase ~30% with no behavior change