Hamidreza Darabi
Senior Backend Engineer, Python & Go, real-time systems and data pipelines
Self-taught Senior Backend Engineer with 9+ years building real-time
systems and data pipelines in Python (Django, FastAPI, Flask) and Go,
backed by PostgreSQL, Redis, Kafka and Elasticsearch. Fintech and regtech
background. Based in Sofia, Bulgaria, open to remote.
I balance delivery speed against clean, maintainable code, own features
end to end, and work closely with engineering and product. I like the
parts that are easy to get wrong under load: idempotency, backpressure
and clean shutdown.
Skills
- Languages: Python, Go, JavaScript, TypeScript, SQL, Bash
- Frameworks: Django, FastAPI, Flask, React
- Data: PostgreSQL, Redis, Elasticsearch, pgvector
- Real-time: WebSockets, Kafka, Celery, Redis Pub/Sub
- Cloud: AWS, Azure, Docker, CI/CD, Linux
Experience
- Mar 2022 to now: Senior Full-Stack Developer, Resonanz Capital. Python, Flask and React on Azure.
- Jul 2021 to Mar 2022: Senior Full-Stack Developer, ComplyAdvantage. Django, React and Go on AWS.
- Feb 2021 to Jul 2021: Senior Backend Developer, Compilat. Lua and Tarantool services with Kafka streaming.
- Jul 2020 to Jan 2021: Senior Developer and DevOps, OpenSofia. Microservices in Python, React and Go.
- Feb 2020 to May 2020: Backend / Python Developer, AHDesign. Django apps with Redis, Elasticsearch and Celery.
- Jan 2018 to Nov 2019: Full-Stack Developer, Gemos Imperia. Python and Django backends, VPN servers in Go.
- 2013 to 2017: Freelance Developer. Full-stack client apps end to end.
Projects
- ledger: Go double-entry ledger, row-locked transfers and idempotency
- marketstream: Go pipeline from Binance WebSocket to Postgres, OHLCV API
- tricolor: concurrent mark and sweep garbage collector in Go, no dependencies
- pgvector-rag: RAG search API on FastAPI, pgvector and Redis with citations
- elina: Django and Celery BTC/USD ingestion with a DRF read API
- event-microservices: Go auth, Django and Flask kept in step by Kafka events
- live-metrics: live Binance trade analytics, Kafka, Timescale and React
- real-time-pipeline: event-driven pipeline, Kafka, Celery, Redis, Postgres, FastAPI
- message-dispatcher: Go service dispatching from a PostgreSQL queue with Redis caching
- security-checker: Go middleware blocking SQLi/XSS, rate-limiting with Redis
- synapse-stack: full-stack PDF manager, Flask and React with text search
Contact