I build modern web applications.
Enabling reliable and scalable communication services.
Get in touchAlexander Mader
Functional Lead & Software Engineer based in Karlsruhe. Working with JavaScript/TypeScript and Java — mostly React and Spring Boot. Currently at IONOS SE.
About me
Functional Lead & Software Engineer based in Karlsruhe. I work with JavaScript/TypeScript and Java, mostly combining React with Spring Boot. Beyond my day job I run self-hosted infrastructure and continuously explore web development and AI.
Focus
- Full-stack product development with React and Spring Boot
- Containerisation, CI/CD pipelines, and self-hosted infrastructure
- AI-integrated development workflows
- Web performance and scalable architectures
Approach
- Teamwork and open communication over siloed work
- Sustainable solutions over quick fixes
- Continuous learning as a professional habit
- Close collaboration with stakeholders from the start
Featured Writing
From practice. In progress. Focused on engineering leadership and sustainable delivery.
1/14/2026 · 6 min read
Shipping calmer teams: clarity over urgency theatre
How small operating rules around ownership, decision logs, and handoffs improve delivery speed without burning out engineers.
Read article11/8/2025 · 5 min read
Using AI as a reliability multiplier in product engineering
A practical workflow for pairing AI-assisted implementation with architecture guardrails, tests, and code review quality bars.
Read article8/3/2025 · 7 min read
Frontend platform basics that make large React apps maintainable
Theme tokens, accessibility defaults, release discipline, and observability patterns that keep complexity in check over time.
Read articleContact
Reach out directly: info@alexandermader.de
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