Sebastian Cohnen
Cologne, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolSebastian Cohnen is a seasoned software architect and founder with 16 years of experience building backend systems and shaping system architecture for high-scale web applications. He co-founded StormForger—an early Performance Testing as a Service product—and later led its integration and performance engineering as VP Performance Testing after acquisition, scaling observability and ML-driven Kubernetes optimization by orders of magnitude. Hands-on with Ruby/Rails, Erlang, Go, Node.js and recently Rust, he focuses on simple, elegant and efficient systems and helping teams understand behavior under load. His open-source contributions include improving documentation for the well-known Tsung benchmarking tool, reflecting a pragmatic attention to clarity as well as code. Based in Cologne, he pairs startup leadership and product-building experience with deep operational knowledge of NoSQL, messaging, and distributed performance testing.
16 years of coding experience
15 years of employment as a software developer
M. Sc., Computer Science, M. Sc., Computer Science at Cologne University of Applied Sciences
German, English
Stackoverflow
151reputation
18kreached
5answers
0questions
Github Skills (14)
documentation10
encoding6
couchdb6
uuid6
resteasy6
database6
jetty6
performance-testing6
mysql6
tsung6
java6
erlang4
xmpp4
http4
Programming languages (24)
Github contributions (5)
processone/tsung
Sep 2013 - Nov 2020
Tsung is a high-performance benchmark framework for various protocols including HTTP, XMPP, LDAP, etc.
Role in this project:
Technical Writer
Technical WriterContributions:92 commits, 36 PRs, 30 pushes in 7 years 3 months
Contributions summary:Sebastian primarily focused on improving the project's documentation. Their contributions include removing LaTeX commands and fixing various typos across several documentation files, including `docs/conf-sessions.rst`, `docs/benchmark.rst`, `docs/reports.rst`, `docs/conf-advanced-features.rst`, `docs/introduction.rst`, `docs/conf-monitoring.rst`, `docs/faq.rst`, `docs/conf-client-server.rst`, `docs/conf-file.rst`, and `docs/benchmark.rst`. These edits enhanced the clarity, consistency, and readability of the documentation.
snmpbenchmarkingerlangmysqlxmpp
tisba/adventofcode
Dec 2018 - Dec 2024
Contributions:63 pushes, 3 branches in 6 years 1 month
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