XAKPC DEV LABS

Pavel Osadchuk
Available for remote roles

Principal .NET / C# Engineer, Tech Lead & Software Architect

Principal hands-on .NET/C# engineer and former founder with 14+ years building backend systems, SaaS platforms, APIs, and business-critical software for international teams. Open to remote Staff / Principal Engineer, Tech Lead, and Software Architect opportunities.

Remote-first B2B ยท EOR ยท Employment EU hours ยท partial US overlap Based in South Korea

14+

years shipping production .NET

30,000+

daily users on a product I founded

70 TB

document corpus delivered via REST

3ร—

international hackathon winner

How I Can Help

Staff / Principal Engineer

Hands-on delivery of backend systems, APIs, and microservices with ASP.NET Core โ€” production reliability, performance, and clean, maintainable code.

Tech Lead

Pragmatic technical leadership: architecture and code review, quality standards, responsible AI-assisted development, and daily collaboration across EU/US timezones.

Software Architect

Solution architecture across application, infrastructure, and data layers โ€” service design, database architecture, deployment topology, security boundaries, and non-functional requirements.

Experience

Software Architect ยท Andersen

2026 โ€” Present

Own solution architecture for an enterprise operations management platform across application, infrastructure, and data layers โ€” service design, database architecture, deployment topology, and security boundaries. Define the technical foundation and enforce guidelines for responsible AI-assisted development using Claude Code.

Lead .NET Developer / Tech Lead ยท Andersen

2021 โ€” Present

An enterprise standards-document comparison platform using AI text recognition and NLP to detect differences across document versions at scale, built for a global information-services client.

  • Designed and built .NET microservices for document processing, scaling to hundreds of thousands of documents.
  • Delivered secure delivery of a corpus up to 70 TB, exposed via REST APIs to an Angular web app.
  • Built a company-wide email-templating foundation and governed migration to a v2 settings platform.
  • Reviewed architecture and code, keeping quality, maintainability, and production stability high.

Technical Founder (CEO/CTO) ยท HR Chatbot

2015 โ€” 2021

Founded and led an AI-powered HR automation platform for recruitment, onboarding, and employee support that reached 30,000+ daily users. Led a 5-person cross-functional team, architected a cloud-native platform on .NET Core and Azure, and owned product direction and enterprise integrations from concept to market.

Senior Full-Stack Developer ยท Municorn

2015 โ€” 2017

Built mobile and web apps for financial services โ€” ASP.NET Web API analytics processing hundreds of thousands of transactions, top-ranked Xamarin iOS/Android apps, BDD testing practices, and image-processing for document recognition.

Senior .NET Developer ยท Thomson Reuters

2015

Contributed to the WinRT version of EIKON Interactive Map, an enterprise geospatial app โ€” high-performance Windows apps with ArcGIS and MVVM, plus a fault-tolerant REST client for a real-time news API.

Tech Stack

Backend

  • C# / .NET
  • ASP.NET Core
  • Web API / MVC
  • REST APIs
  • Microservices

Frontend / UI

  • Angular
  • Blazor
  • Razor Pages
  • htmx
  • WinUI / MAUI / Xamarin

Databases

  • PostgreSQL
  • MS SQL Server
  • SQLite

Cloud

  • Azure (Functions, Service Bus, Web Apps)
  • AWS (S3, Lambda)

Identity

  • Microsoft Entra ID

Testing / DevOps

  • xUnit / NUnit
  • Azure DevOps
  • GitHub Actions
  • CI/CD

Awards

  • HackJunction Helsinki 2016 โ€” Winner, Skype AI Challenge
  • HackJunction Helsinki 2015 โ€” Winner
  • PayPal BattleHack Moscow 2014 โ€” Winner

Education

  • Bauman Moscow State Technical University โ€” Master's degree, Computer Science
  • Moscow Institute of Physics and Technology โ€” Professional Retraining, Innovation Management

Work Setup

Remote-first

Long-term contractor and remote employment experience with US and EU teams.

B2B ยท EOR ยท Employment

B2B invoicing available via a registered entity โ€” see Legal.

EU hours

Partial US overlap for standups and collaboration.

Based in South Korea

Working with international, multi-timezone teams.

Let's talk

Have a Staff/Principal Engineer, Tech Lead, or Architect role โ€” or a B2B contract? The fastest way to reach me is email.