Jan Mehnen - Founder at Stealth Startup

Jan Mehnen

Founder at Stealth Startup

Hamburg, Germany

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Summary

🤩

Rockstar

🎓

Top School

Jan Mehnen is a founder and engineer with 15 years of experience building hardware-enabled manufacturing and automation systems, currently leading a stealth startup focused on next-generation European production. He combines a PhD-level background in production technology with hands-on work in avionics, fixed-wing UAV command-and-control, and sensor-driven automation from his role at mb+Partner. Jan is also an active back-end contributor to notable open-source projects in the IPFS/libp2p ecosystem, improving pubsub, HTTP API behavior, and test coverage for widely used Go libraries. His work bridges applied research—machine learning and CFRP heat conduction studies—with practical prototyping and production automation, from mobile runway systems to automated localization. Known for moving both atoms and bits, he thrives at the intersection of industrial strength and new technology, translating complex research into deployable systems. Based in Hamburg, he often blends deep technical detail with product-oriented execution and enjoys connecting with engineers who reimagine how things are made.

15 years of coding experience

9 years of employment as a software developer

Dr.-Ing. / PhD Production Technology, Dr.-Ing. / PhD Production Technology at Hamburg University of Technology

English, German

Github Skills (14)

json10

ipfs10

go10

api10

pubsub10

http-api10

libp2p10

testing10

concurrency9

apidoc9

command-line-interface8

command-line8

cli8

base648

Programming languages (19)

JavaC++LeanCRustCoqTeXGo

Github contributions (5)

ipfs/kubo

Oct 2016 - Sep 2018

IPFS implementation in Go: a daemon that stores and serves content-addressed data, with a CLI, HTTP Gateway, and RPC API

Role in this project:

Back-end Developer

Contributions:57 commits, 21 PRs, 159 pushes in 1 year 11 months

Contributions summary:Jan primarily contributed to the IPFS Kubo implementation in Go by fixing issues related to HTTP API behavior. They focused on ensuring headers were correctly sent, handling flush errors, and removing redundant operations within the HTTP API. Additionally, the user reverted a previous commit impacting js-ipfs-api compatibility and added documentation for the command. They also updated the floodsub version and included sharness tests for pubsub functionality.

cligoipfsrpc

ipfs/go-ipfs-api

Oct 2016 - Nov 2017

The go interface to ipfs's HTTP API

Role in this project:

Back-end Developer

Contributions:9 commits, 3 PRs, 2 pushes in 1 year 1 month

Contributions summary:Jan primarily worked on implementing and refining the `pubsub` functionality within the go-ipfs-api library. Their contributions involved the design and implementation of data structures like `PubSubRecord` and `Subscription`, along with corresponding methods for subscribing, publishing, and canceling subscriptions. The code changes reflect a progression from an initial prototype to a more refined, yet still simplified, implementation of the pubsub feature, including changes to how the messages are handled. These changes involved base64 encoding, JSON decoding and the implementation of specific methods to handle the flow of information.

go-interfaceipfs

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