Jan Riethmayer
VP Of Engineering at Earlybird Venture Capital
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolJan Riethmayer is a veteran software leader and four-time founder with 16 years of experience building product-first engineering organizations from zero to scale, currently serving as VP of Engineering at Earlybird Venture Capital. He combines hands-on full-stack engineering (TS, Go, Ruby, Python, Elixir) with cloud-native architecture—Kubernetes, Terraform, AWS/GCP—and has led teams of 60+ while shipping first products himself. Jan co-founded Zencargo, grew bonusbox to 4M users, and twice prepared Series B engineering data rooms, demonstrating both operational rigour and investor-readiness. He excels at turning ambiguous, data-rich problems into production data platforms (EagleEye) and has a track record of embedding AI and MLOps into product workflows. Known for fast learning and execution under uncertainty, he also coaches CTOs and takes fractional CTO roles, bringing a people-first culture that scales technical teams sustainably.
16 years of coding experience
17 years of employment as a software developer
Technische Universität BerlinDesigning and building AI Products and Services, Artificial Intelligence, Designing and building AI Products and Services, Artificial Intelligence at MIT xPRO
English, German
Stackoverflow
21reputation
0reached
1answer
0questions
Github Skills (47)
homebrew9
test-unit6
factory-bot6
ruby-on-rails6
ruby6
params5
driver4
redis4
mkdocs4
churn3
elixir3
event-driven3
helm3
ddd3
event-sourcing3
Programming languages (8)
Github contributions (5)
riethmayer/eureka
Feb 2018 - May 2026
Contributions:8 reviews, 21 PRs, 90 pushes in 8 years 4 months
riethmayer/ansible_osx_bootstrap
Mar 2015 - Jan 2017
Contributions:33 commits, 2 PRs, 21 pushes in 1 year 10 months
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