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Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

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Freezor/README.md

👋 Hi, I'm Oliver

I rescue legacy .NET systems in manufacturing companies before they become business risks.

For 13+ years, I've specialized in making complex systems reliable again — stabilizing releases, modernizing architectures, and preparing production environments for Industry 4.0.

What I Do

Legacy System Stabilization

  • Transform unstable .NET systems into reliable production environments
  • 60% reduction in production incidents (OPTANO case)
  • 64% reduction in critical bugs through systematic refactoring

Industry 4.0 Integration

  • OPC UA and Asset Administration Shell (AAS) implementation
  • I worked at AASX Server
  • Fraunhofer IOSB-INA research experience in digital twins
  • Creator of FluentAAS — Open-source C# library for AAS creation

Release Excellence

  • CI/CD pipeline modernization (40% faster builds)
  • Test automation (46% → 87% coverage)
  • From quarterly to bi-weekly releases without downtime

Real-World Impact

Cross-Platform App — Stabilized mobile app serving 300,000+ users

  • 60% crash reduction within 3 months
  • Enhanced release quality for enterprise-scale consumer application

B2B Optimization Platform — Improved analytics platform releases

  • Sprint delivery reliability: 70% → 95%
  • Cut deployment time by 40%
  • Accelerated release cycles from quarterly to bi-weekly

My Approach

I don't just consult — I commit code on day one and leave teams empowered to continue independently.

My work focuses on:

  • Hands-on technical delivery, not PowerPoint presentations
  • Measurable results over buzzwords
  • Team enablement over dependency creation
  • Pragmatic solutions over architectural dogma

Technology & Domains

Core Stack: C# / .NET 6-9, ASP.NET Core, Docker, Microservices
CI/CD: TeamCity, GitHub Actions, Azure DevOps
Industry 4.0: Asset Administration Shell (AAS), Digital Twins, OPC UA
Methodologies: Test-Driven Development, Refactoring, Continuous Delivery

Background

Based in Lemgo, Germany (Ostwestfalen-Lippe region), with deep roots in the local manufacturing ecosystem. Previously worked at Miele, OPTANO, and Fraunhofer IOSB-INA.

Get in Touch

If you're dealing with a legacy .NET system that's become a bottleneck, or need to integrate Industry 4.0 standards into existing production environments, let's talk.

I work with mid-sized manufacturing companies (50-500 employees) in the DACH region who need immediate technical expertise combined with long-term team development.

LinkedIn: oliver-fries
Location: Lemgo, Germany

Pinned Loading

  1. FluentAAS FluentAAS Public

    A fluent, modular C# library for building, validating, and serializing Asset Administration Shell (AAS) models — developer-friendly, standards-compliant, and ready for automation.

    C#

  2. webcrawler-microservice webcrawler-microservice Public

    Java