At ING Tech, I build Django and DRF systems including a schema-per-tenant work-tracking platform serving six organizations and an attendance gateway for 100+ biometric terminals.
I designed deduplicated device-ingestion pipelines, automated fleet operations across 16 Celery tasks, and made the server the single time authority to resolve chronic device clock drift. As sole backend engineer for Ingine, I shipped eight business domains and backed the architecture with 303 tests across 47 modules.
I also build school-scale automation, including concurrent PDF report-card generation with live WebSocket progress and Google Gemini-assisted student remarks. I own schema design, API contracts, testing, and deployment across Django, PostgreSQL, Redis, RabbitMQ, and Docker.
