Joachim Wester
Founder at Heads Svenska AB
Stockholm, Stockholm County, Sweden
Summary
🤩
RockstarJoachim Wester is a veteran Swedish entrepreneur and technologist with 11 years of documented software experience and three decades of company-building, having founded or co-founded multiple firms including Starcounter AB, Heads Svenska AB and JOWE Retail Systems. He blends hands-on backend engineering—evidenced by contributions to a lean JSON-Patch implementation and careful bug fixes and test work—with strategic leadership as majority shareholder and board participant across tech ventures. Based in Stockholm, Joachim has steered product, release and governance activities through IPO-era ownership and successful exits, demonstrating both operational rigor and investor-level perspective. Less obvious: he pairs deep technical maintenance work (core patching logic and test modernization) with high-level corporate stewardship, making him comfortable toggling between code-level detail and long-term business strategy.
11 years of coding experience
11 years of employment as a software developer
Stackoverflow
11reputation
0reached
1answer
0questions
Github Skills (11)
json10
javascript10
testing9
typescripts8
typescript8
typescript-types8
riak6
oltp6
mongodb6
nosql6
database6
Programming languages (9)
Github contributions (5)
Starcounter-Jack/JSON-Patch
Apr 2020 - Mar 2022
Lean and mean Javascript implementation of the JSON-Patch standard (RFC 6902). Update JSON documents using delta patches.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 releases, 44 commits, 18 PRs in 2 years
Contributions summary:Joachim primarily contributed to the core logic of the JSON-Patch library. They made changes to the core files, specifically `src/core.ts` and `src/duplex.ts` which suggests they are making updates to the patching logic. Additionally, they fixed a bug related to object to array replacement and updated test files, showing a focus on testing and maintenance. Finally, the user bumped the copyright and updated the build version, demonstrating an involvement in the project's release cycle.
javascriptjson-documentjson-patchrfc
Polyjuice/functional
Jul 2020 - May 2026
Contributions:7 pushes, 1 branch in 5 years 10 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.