I’m a senior software engineer with 20+ years in IT. I build scalable systems, lead technical teams, and optimize application performance. My experience spans enterprise solutions for automotive giants like VW Group/ŠKODA, e-commerce platforms, and financial systems. When I’m not architecting backends, I’m developing indie games in Godot or coaching young chess players.

Technical Skills

Backend: C#, .NET, ASP.NET Core, Entity Framework Core, LINQ optimization, REST APIs, gRPC

Cloud & Infrastructure: Microsoft Azure, Azure Functions, Logic Apps, Docker, RabbitMQ, Redis, PostgreSQL, SQL Server

Architecture: Microservices, CQRS, Event-driven, Domain-Driven Design, Performance optimization

Game Development: Unity, Godot, Netcode for GameObjects, Multiplayer networking, WebSockets

Career Highlights

  • Azure Integration Engineer at Ciklum (2025–present) — Designing and implementing Azure-based integration solutions
  • Enterprise Architect at Qinshift for VW Group/ŠKODA (2023–2024) — Designed connected car platform architecture
  • Performance Specialist — Optimized checkout systems, reporting pipelines, and caching strategies saving significant infrastructure costs
  • Sales Process Optimization — Master’s thesis research on bridging theory and practice in software companies, focusing on proposal process optimization and its direct impact on revenue https://theses.cz/id/3q0yvc/
  • Open Source Contributor — NotionExporter, SieveCache and other tools

A few articles showcasing my technical expertise:

What People Say

“Working with Patrik has been a real pleasure. Patrik not only knows his stuff when it comes to development, but his knack for guiding and upskilling junior devs is top-notch. The team’s skill level has skyrocketed thanks to his mix of smarts and patience. What’s really cool is Patrik’s proactive approach – always ready to jump in and lend a hand before anyone even has to ask. He’s the kind of leader who rolls up his sleeves and makes tech magic happen, all while keeping the vibe upbeat and collaborative. Any tech crew would be lucky to have him on board!”

— David Malecek, Team Lead

“Patrik combines knowledge with experience. I wish him the very best for the future.”

— Kirk Armstrong, Technical Manager & Overall Architect Connected Car, ŠKODA AUTO

“Patrik is a capable developer and architect with professional communication skills—both with clients and colleagues. His technical abilities are complemented by strong business sense and experience in leading teams. I would definitely welcome the opportunity to work with Patrik again.”

— Lucie Krobová, Transformation & Strategy Leader

What I’m Looking For

  • Contract-based work — Prague preferred, remote possible
  • Challenging technical problems — Performance optimization, complex integrations, greenfield projects
  • Architecture involvement — I want to shape technical and business decisions, not just execute tickets
  • Agile teams — Experience with SAFe and LeSS at enterprise scale
  • Rate: 10,000 CZK / man-day

Let’s Talk

I’m not actively looking, but I’m always open to the right opportunity. If you need a technical lead or engineering manager who can drive architecture decisions, mentor teams, and deliver results—let’s talk.

📧 Email: patrik.sima@gmail.com

📱 Phone: +420 777 287 451

💼 LinkedIn: linkedin.com/in/patriksima

🐙 GitHub: github.com/patriksima

📄 Full CV: View my complete resume