I'm Rico Fritzsche. I'm a software architect, engineer, and founder focused on building reliable, scalable systems that solve real-world problems.

In over 30 years of software engineering, I've learned that rigid, layered architectures create more friction than clarity. Today, I prefer simpler, more focused designs that stay close to the problem and scale naturally. My work focuses on building high performance systems, especially in geospatial, logistics and modern SaaS environments.

What I’m Working On

My recent work focuses on the application of Vertical Feature Slices, Functional Core / Imperative Shell (FCIS) architecture to production systems, particularly with Rust and C#. I am exploring how to design systems that are testable, predictable and easy to reason about, even in large codebases.

I'm also building location-based services from the ground up - including a complete geospatial processing stack, vector tile infrastructure, and a custom geocoding engine - with performance and simplicity in mind.

What I Share Here

At ricofritzsche.me, I publish articles that go beyond surface-level tutorials. My focus is on:

• Scalable software architecture
• Vertical Slice Architecture
• The good parts of Domain-Driven Design
• Functional programming techniques in Rust and C#
• Geospatial systems (PostGIS, PostgreSQL, OSM)
• Clean data pipelines
• Modern API and backend design for SaaS

I write for developers, architects, and technical decision-makers who care about craft and clarity.

Why I Write

This site exists to document what works. I’m not here to chase trends. I’m here to share principles, patterns, and architecture techniques that stand the test of time.

If you're building complex systems and want practical perspectives grounded in real-world experience, you're in the right place.

Cheers!