15 years in IT, 7 years in Go
I'm Serge. I help companies fix their slow, expensive Go backends and clean up AI-generated mess
From support to management to senior engineering • I've seen IT from all angles
Let's Talk About Your Backend
I'm Serge. I help companies fix their slow, expensive Go backends and clean up AI-generated mess
From support to management to senior engineering • I've seen IT from all angles
Let's Talk About Your BackendAfter years of debugging production disasters at 3am, I've learned what actually matters
I'll profile your code, find the bottlenecks, and make it fast. Better algorithms, proper caching, optimized queries.
I optimize code to use less resources. Proper indexing, efficient algorithms, smart caching. Less servers = lower bills.
I build backends that don't need rebuilding in 6 months. Clean Go code, proper tests, documentation your team will actually read. GDPR-compliant because Berlin taught me well.
Memory leaks, goroutine explosions, database deadlocks. I know how to debug and fix production issues quickly.
Common backend problems I can solve
€5,000/month for 1000 users? That's not normal. Usually fixable with proper caching and query optimization.
AI is great for prototypes. Production needs real engineering. I know the difference.
Original developer gone? Every change breaks something? I can refactor, document, and train your team.
Database locks up? APIs timeout? Memory explodes? Classic symptoms, straightforward fixes.
You find out about problems when users complain. Let's fix that with proper observability.
What you can typically expect:
Senior Go developer with 7 years of backend development experience. I specialize in performance optimization and building scalable systems.
My focus: making slow code fast, reducing infrastructure costs, and building reliable backends that don't wake you up at night.
Things I believe in:
Go 1.16-1.25
PostgreSQL, MongoDB, Redis, ClickHouse
...
AWS, Digital Ocean, Docker, Kubernetes
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Prometheus, Grafana, Tempo, Loki, Sentry
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I prefer written communication - it's clearer, async-friendly, and respects both our time.
Based in Berlin • Working with teams globally • Usually reply within 24 hours
Response time: Usually within 24 hours • All communication in writing for clarity