DevOps & Cloud @ 1&1 Mail & Media

Hallo, I’m Vivek.a software engineer based in Karlsruhe, Germany.

I like building things end to end — data, backends, interfaces and the infrastructure underneath. Right now I’m at 1&1 Mail & Media, where I work with the team running log pipelines and Kubernetes platforms behind one of Germany’s largest mail providers, alongside my master’s in Web & Data Science. Before that, I freelanced and shipped a school platform that parents and teachers still use.

More Information →or say hallo →

Selected work

Things I’ve built

gruendbar.vivekreddy.de

Gründbar preview

Gründbar↗

A startup idea directory — pitch in markdown, collect upvotes, find teammates. Next.js, Sanity, GitHub OAuth.

stromlinie.vivekreddy.de

Stromlinie preview

Stromlinie↗

Germany’s power grid, live — generation mix, day-ahead prices and renewable share from open data.

fliessband.vivekreddy.de

Fließband preview

Fließband↗

A data pipeline that monitors itself — GitHub Actions cron, SQLite-in-git, quality checks, freshness SLO.

klartext.vivekreddy.de

Klartext preview

Klartext↗

OCR that never uploads your document — Tesseract WASM in the browser with a visible preprocessing pipeline.

prompt-pattern↗

A Racket #lang that makes LLM prompt templates compile-time checked — an undeclared slot fails the build.

bipl-lsp↗

A language server with live type checking for a teaching language — being upstreamed into softlang/yas.

Writing

Recent notes

July 13, 2026·2 min read

SQLite in git is a real architecture→

Fließband stores its database in the repo and lets GitHub Actions be its scheduler, its ops log and its deploy pipeline. Here is why that is a decision, not a hack.

July 13, 2026·2 min read

When the free tier died, my OCR moved into the browser→

Klartext was built as a Dockerized Python service — until Hugging Face put Docker Spaces behind a paywall mid-project. The forced rewrite produced a better architecture.

July 8, 2026·3 min read

MCP is not a plugin system→

Everyone treats Model Context Protocol like USB for APIs. But tools are only one of six primitives — and the protocol is really a contract about control, not connectivity.