Computer Science student • Full-stack developer • Automation builder
I'm a Computer Science student at the University of Münster and a working student in IT. I work in German and English, and I focus on software that is technically sound and genuinely useful day-to-day — full-stack apps, internal tools, automation, and data pipelines.
I'm particularly interested in how modern AI tooling (e.g. Claude Code) changes the way engineers plan, implement, and refactor — not as a buzzword, but as a real part of my daily workflow.
- Full-stack web applications with TypeScript, React, and Node/Express
- Automation workflows that replace repetitive manual work (n8n, Make, APIs)
- Data and reporting tools with Python, pandas, and SQL
- AI-assisted development, using Claude Code as part of daily planning, implementation, and refactoring
I care about clean, reliable software and prefer practical impact over clever abstractions. I enjoy work where engineering meets real business processes.
Right now, I’m focused on growing into an engineer who can do more than just code:
- understand the problem deeply
- design a solid solution
- build it cleanly
- use modern tools like Claude Code effectively
- and make sure the result creates real value
That combination of engineering + AI leverage + product thinking + execution is what I’m aiming to strengthen with every project.
- Open-source collaborations
- Automation- or data-heavy side projects
- AI-enabled tools for developers or small teams
- Practical software ideas with real utility
- GitHub: @LennardGeissler
- LinkedIn: Lennard Geißler
Building useful software — one clean, working system at a time.