Jonas Holtkamp
Software Engineer
Backend systems, cloud infrastructure & distributed architectures. Over a decade building things that scale.
Get in touch →About
Over a decade in. Still enjoying it.
I'm a backend-focused software engineer with deep experience in cloud infrastructure, distributed systems, and the kind of platform work that keeps everything running but rarely makes it onto a slide deck.
At Senacor, I spent nine years as Lead Developer — leading a feature team inside an agile delivery setup. That means I know how to design architecture and how to work with the people implementing it. I thrive in collaborative environments and I've been told I'm easy to be around.
Currently working as an individual contributor at codejoi, focused on cloud, infrastructure, and application engineering.
Agentic AI coding tools are part of how I work — Claude Code specifically. I've found that knowing when not to trust it is at least half the skill, and a decade of engineering judgement tends to help with that.
I don't have a LinkedIn. This is it.
Experience
2025 — present
Software development consultancy. Individual contributor with a focus on cloud infrastructure, platform engineering, and application development.
2016 — 2025
IT consulting and digital transformation for clients in financial services and automotive. Designed and implemented cloud-based microservice architectures, led a team of junior and senior developers, and owned technical decisions end to end — architecture, code, people, and stakeholders.
2013 — 2016
IT service provider for the German savings bank financial group. Java engineer on the core banking system, focused on credit processes. Where I learned my ropes.
Skills
Languages & Runtimes
Cloud & Infrastructure
Data
Messaging & Streaming
Observability
CI/CD
Practices
Contact
Let's talk.
Whether you have a project in mind, want to talk shop, or just want to say hello — my inbox is open.
hello@jonasholtkamp.dev →