I am Henrik , a creative technologist with more than 15 years of experience in professional software development, from hands-on coding to leading a tech organization. As Head of Technology at a Hamburg-based fintech I built a team of around 50 people across three locations, so I know both sides: building things myself and enabling others to build.
Today I work as a freelancer in two directions. On one side, (AI) automation with n8n in enterprise environments, recently banking connections and SAP integrations. On the other side, hands-on software development. Sometimes as part of an existing dev team, but more often as special projects directly with the C-level: when things need to move fast, nobody knows yet what exactly is needed, or a technical topic is stuck, whether after restructurings, for new products or in the middle of a migration. I do not just advise there, I build. That is where I roll up my sleeves, write the code myself and iterate quickly.
Technically I have been working cloud-native on AWS for more than 10 years, with Node.js and TypeScript as my core stack. I cover the full range: from frontend and UI work, through serverless and containerized backends with Docker, to infrastructure, operations and SRE topics like monitoring, deployments and keeping systems reliable in production. I am comfortable owning a system end to end rather than just one layer of it.
On the side I run CustomJS, a tool with several thousand users in the n8n and Make ecosystem, which I build and operate on AWS myself.
Custom JS execution Execute custom JavaScript code in no-code tools like integromat or make.com.
This product was created because I needed exactly this functionality. That's why I built and published a service with as little effort as possible. After a year it has developed so well that I am currently working on an extension for Custom.JS to bring custom logic into any software.
https://www.customjs.space
