Core Stack
TypeScriptReactFastifyNext.jsFull-stack web developmentBackend architecture
Open for Contract Work
Jonathan Fritz
Combining hands-on engineering with system design and consulting capability.
I worked for people just like you.
- taxpeer.de
- FMX - Filmhochschule Ludwigsburg
- App Innovators
- S-Bahn Stuttgart
- Verwaltung Bauer
- Horbach
- dozens of NGOs & non-profits
About
About Me
I am a senior software engineer with broad technical range and a consistent focus on durable implementation.
Starting programming in 2013, I have built a broad technical foundation across web, backend, app, and system design. Before Taxpeer, I served as Head of IT at SIUT in Berlin, where I designed on-premise solutions for real-world problems.
Today, I am focused on advancing technology, using AI responsibly for positive impact, and building powerful, efficient systems that help organizations execute with confidence.
Freelance work
nosc.io
I worked with dozens of clients, from startups to large organizations through my freelance company nosc.io. You can be one of them.
Available for contract work, consulting, and custom software projects of any size.
Client typesStartups, companies, NGOs, agencies
Common engagementsBackend builds, app delivery, architecture, consulting
Skills
Skills and Expertise
I work primarily as a full-stack TypeScript developer with a strong backend focus, while also bringing in deep low-level engineering knowledge and long-running app development experience.
Dev Ops / Infrastructure
Pipeline buildingMaintaining infrastructureDeployment automation
App Development
iOS development since 201430+ apps builtClient and product experienceLong-term maintenance
Low-Level Development
Comfortable below the framework layer.
I have built shells, web servers and more from the ground up in C and C++. I am very confident going below the framework layer when needed and implement solutions that just work.
Volunteering
Beyond commercial projects.
Since 2019, I have applied my digital and technical skills to support non-profit organizations. This includes contributions to multiple notable climate movements in Germany, as well as websites, tools, and apps for smaller non-profit organizations and art collectives so they can stay focused on their mission.
Why Work With Me
Why clients reach out
The value proposition is straightforward: senior technical judgment, reliable execution, and comfort with difficult systems.
Strong backend and system design expertise
Able to move between strategy and implementation
Experience with complex operational systems
Comfortable building custom solutions, not just templates
Proven work across education, industries, apps, and non-profits
Contact
Contact Me
Companies, founders, agencies and NGOs can get in touch for freelance projects, consulting, or technical collaboration.
Project inquiry form
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