Stefan Matting
SRE at Wire
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolStefan Matting is an SRE with 11 years of experience building reliable back-end and data systems, currently operating at Wire in Berlin. He moves fluidly between site reliability, backend development and ML-informed data work, previously delivering production ML solutions at Outfittery and natural-language data interfaces at AskBy.ai. A pragmatic polyglot, his open-source contributions show hands-on work in Haskell, Purescript, Nix and Python—most notably improving authentication and token handling in Wire’s server services. Trained in mathematics and computer science, Stefan combines formal problem-solving with practical engineering to modernize legacy systems and securely scale services. He has a track record of converting research and prototypes into robust production features.
11 years of coding experience
15 years of employment as a software developer
WendlingenDiplom Mathematics and Computer Science, Diplom Mathematics and Computer Science at Universität Freiburg
English, French
Github Skills (5)
databases10
back-end-development10
haskell10
database10
cassandra9
Programming languages (22)
Github contributions (5)
wireapp/wire-server
Oct 2020 - Jan 2023
🇪🇺 Wire back-end services
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 releases, 649 reviews, 663 commits in 2 years 4 months
Contributions summary:Stefan's commits primarily focus on modifying the back-end services of the Wire server. They are focused on improving the handling of security tokens and user authentication, specifically by implementing SHA512 hashed tokens and introducing a mechanism for converting legacy plaintext tokens. Their work involves database interactions and code changes within the `spar` service.
backendwireserverhaskellrust
smatting/nixos-configs
Mar 2018 - Mar 2026
Contributions:22 pushes, 1 branch in 8 years 1 month
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