Tim Mohlmann
Head Of Software Engineering at ZITADEL
Sibiu, Romania
Summary
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Rockstar🎓
Top SchoolTim Mohlmann is a pragmatic software engineering leader and founder with 15 years of experience who currently heads engineering at ZITADEL after running his own startup, Mohlmann Solutions. He combines hands-on Go backend development, DevOps and sysadmin responsibilities—running Docker Swarm and replicated PostgreSQL—for production web services, and has practical experience upgrading OIDC implementations and CI/CD automation in notable open-source projects like ZITADEL and Mailu. Comfortable shifting between startup multitasking and formal engineering leadership, he has led small teams, shipping reusable API components while learning the hard lessons of product-market fit. His background in maritime engineering and commissioning gives him a systems-first mindset and a knack for diagnosing complex, cross-domain failures under pressure.
15 years of coding experience
16 years of employment as a software developer
Maritime officer, Unrestricted, Maritime officer, Unrestricted at scheepvaart en transport college
Dutch, English
Stackoverflow
1,740reputation
361kreached
27answers
18questions
Github Skills (24)
docker10
back-end-development10
testing10
oid10
bash10
docker-compose10
travis-ci10
dockers10
cicd10
git9
go8
networking8
api7
apidoc7
sql6
Programming languages (15)
Github contributions (5)
Mailu/Mailu
Aug 2018 - May 2020
Insular email distribution - mail server as Docker images
Role in this project:
DevOps Engineer
DevOps EngineerContributions:312 commits, 142 PRs, 80 pushes in 1 year 9 months
Contributions summary:Tim primarily focused on improving the testing and deployment infrastructure for the Mailu project. Their contributions included implementing and refining the test suite, introducing automatic Docker image builds and uploads to Docker Hub for pull requests, and setting up automated backporting for urgent fixes. They also addressed DNS resolution issues and made adjustments to the Docker network configuration. The work demonstrated their expertise in CI/CD workflows and containerized application deployment.
pop3dovecotdkimdisposablemailbox
zitadel/zitadel
Feb 2023 - Apr 2025
ZITADEL - Identity infrastructure, simplified for you.
Role in this project:Back-end Developer
Back-end DeveloperContributions:519 reviews, 400 PRs, 985 pushes in 2 years 2 months
Contributions summary:Tim primarily focused on upgrading to and implementing version 2 of the OIDC specification. Their work involved updating internal OIDC libraries, fixing tests, and resolving build errors. The changes demonstrate a deep understanding of OIDC, including refresh token handling, and involved simplifying complex logic within the code. The commits also show experience in testing, ensuring the stability of the updated OIDC implementation.
serverlesskeycloakzitadelbest-ofera
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