Core Technologies

C# / .NETExpert
ASP.NET Core/MVCExpert
Azure ServicesExpert
Generative AIAdvanced
Entity Framework / T-SQLAdvanced
React/TypeScript / JSAdvanced

Leadership & Architecture

Team Leadership
Solution Architecture
Microservices
Technical Interviews
Code Review
Agile/Scrum

Recent Certifications

Azure AI Fundamentals

AI-900 • Feb 2025

Azure Solutions Architect Expert

AZ-305 • Valid until Feb 2026

Azure Administrator Associate

AZ-104 • Valid until Jan 2026

MCSD: App Builder

Microsoft Certified

Languages

English: Advanced (C2 Proficiency)
Polish: Upper-Intermediate (B2)
German: Basic (Grundstufe)

Professional Experience

Lead Software Developer / .NET Technologist

European Airline - Aviation Solutions
Jan 2017 - Present
  • Lead team of up to 15 developers on flight crew management platform (CrewPage)
  • Architected microservices for crew planning with automated FTL (Flight Time Limitations) calculations
  • Built real-time flight crew assignment system handling cabin and cockpit crew scheduling
  • Developed master-data synchronization platform (DataSync) with Azure Message Bus
  • Created staff management system (PersonData) and vacation/bid request tool (RequestTool)
  • Implemented highly customized React UI with real-time updates via SignalR
  • Technologies: ASP.NET Core 10, React 16+/MobX, Azure (Web Services, SQL, AD, Message Bus), SignalR, TypeScript

Technical Interviewer

SaM Solutions
2015 - Present
  • Conducted 250+ technical interviews for .NET/full-stack positions
  • Evaluated candidates on C#, ASP.NET, SQL, Entity Framework, JavaScript, CSS

Lead Developer / Architect

Enterprise Systems - Various Sectors
2014 - 2017
  • Led development of audit documentation suite with team of 6 developers
  • Architected flight ticket booking system with ancillary services and payment integration
  • Built enterprise risk management platform with multi-tenant support
  • Developed research budgeting system serving 800k requests/day across clustered infrastructure
  • Created power plant management system with real-time monitoring dashboard
  • Technologies: ASP.NET MVC5, WebAPI, SignalR, Azure, Quartz.NET, Active Directory

Senior Developer

SaM Solutions
2007 - 2014
  • Developed enterprise web applications using ASP.NET MVC/WebAPI
  • Built SiteCore and Umbraco CMS solutions for various business domains
  • Database design and optimization with SQL Server