About Rok
Senior .NET backend engineer with 25+ years of professional experience in
production systems and legacy modernization.
Recent paid work:
• Boerse Stuttgart Digital Ventures (2021–2025): real-time market data pipeline
for Bison trading app (500K+ users). Stack: .NET, RabbitMQ, Playwright,
Docker, GitLab CI/CD.
• LUZ d.d. (2000–2021): sole architect of a Web GIS platform, 500+ production
applications across 10 major versions. .NET Core migration, SSO, modular
search engine.
Open-source and personal infrastructure (non-client work, but demonstrates
what I build in my own time):
• Rokstep — .NET Framework migration shims + Roslyn analyzers
• 4 Terraform providers written in Go (Shelly IoT, UniFi, Zabbix)
• 3 MCP servers in TypeScript
• Self-hosted k3s Kubernetes cluster + MQTT smart-home setup
Core (professional): C#, .NET, ASP.NET Core, Entity Framework, SQL Server,
RabbitMQ, Docker, Playwright, GitLab CI/CD.
Working level (from personal projects): Go, TypeScript, Kubernetes, MQTT, IoT
protocols, Terraform provider development.
Actively exploring AI-assisted development (Claude Code) for daily workflows.
Security-aware by background (CEH).
Slovenian
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Boerse Stuttgart Digital Ventures GmbH – Hybrid (DE/SI)Senior Backend .NET DeveloperMarch 2021 - March 2025 (4 years)Ljubljana, SloveniaDesigned and built real-time chart data pipeline – ingesting, analysing and serving live market data with high availability (.NET, RabbitMQ) Backend developer on Bison trading app serving 500K+ users (.NET) Built automated integration testing framework for API services (Playwright, Docker, GitLab CI/CD) Collaborated daily in distributed cross-functional team across Germany and Slovenia
- LUZ, d.d.Web GIS Solution ArchitectJanuary 2000 - March 2021 (21 years and 2 months)Ljubljana, SloveniaDesigned and evolved a rapid Web GIS platform through 10 major versions, powering 500+ active applications (ASP.NET, SQL Server) Built SSO and authorization system (4 versions) with resource-based access control and auditing Developed modular search engine supporting heterogeneous data types across multiple databases (MS SQL, Oracle) Created unified application development model migrated to .NET Core Sole architect and developer – full ownership from design to deployment
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Education
- BSc Computer and InformationUniversity of Ljubljana2006BSc Computer and Information
- MCPD: Enterprise & Web DeveloperMicrosoft2008MCPD: Enterprise & Web Developer
Certifications
- Certified Ethical Hacker (CEH v5)EC-Council2007
- Pluralsight Skill IQ — C# (Expert)Pluralsight2020