Bilal Köse Bilal Köse Bilal Köse Bilal Köse Bilal Köse Bilal Köse Bilal Köse Bilal Köse Bilal Köse

Bilal Köse

Computer Engineer

The code I write reaches millions of people every day. With 10+ years across large-scale platforms, I build and ship software languages and technologies change, the approach doesn't: the right system, the right decisions, full ownership.

  • 10+ years experience Large-scale platforms and product teams
  • High-scale systems Distributed architecture, performance, reliability
  • Cloud-native delivery Kubernetes, CI/CD, secure sustainable releases

My career

Text in the video
  1. 500K+ e-documents a day — on a platform I help build (Teamsystem · Mikrogrup, 2024 — now).
  2. 99.9% uptime SLA · 2M+ API requests a day · 2K+ messages per second at peak · 15K+ enterprise clients.
  3. P99 API latency ~350 ms → under 200 ms; HSM PDF/XML signing 800 ms → 300 ms (−60%).
  4. 10+ legacy VB.NET services rebuilt on .NET: ~45% fewer production errors, ~30% faster API responses, 800K+ domains managed (Team.Blue · Natro, 2022 — 2024).
  5. I run my own production: 20+ services on bare-metal Kubernetes, most shipped via GitOps — this website runs on it.
  6. GlamUp Girls: live on the App Store and Google Play, in Turkish, English and Arabic, with 1,000+ outfits, accessories, hairstyles and makeup options.
  7. 10+ years: 2012 Freelance Software Developer · 2016 IT Specialist · 2018 Full-Stack Developer · 2020 Software Engineer · 2022 and 2024 Senior Software Engineer.
  8. Bilal Köse — Computer Engineer · .NET · Kubernetes · Microservices · Distributed Systems · bilalkose.com.tr. [background music]
All projects
All posts

Useful Tools