Alexej Haak
Head Of Engineering at zvoove Germany
Schleswig-Holstein, Germany
Summary
👤
Senior🎓
Top SchoolAlexej Haak is a Senior Engineering Manager based in Schleswig-Holstein, Germany, with 11 years of experience building and leading high-performing software teams across gaming, enterprise, and startup environments. He combines deep technical fluency—evidenced by hands-on contributions to the Scala formatter scalafmt—with pragmatic people leadership, scaling teams at ESL FACEIT Group and earlier serving as head of engineering and project lead roles. Known for bridging architecture and execution, he focuses on shipping robust backend systems, addressing edge cases, and improving developer workflows. Alexej’s background in both computer science and business education gives him a rare mix of technical rigor and product-minded decision making. He thrives in fast-paced, cross-functional settings where clean code and clear team dynamics matter equally.
11 years of coding experience
12 years of employment as a software developer
Bachelor of Science (B.S.) Bachelor of Education, Wirtschaftswissenschaften im Profil Handelslehramt / Informatik, Bachelor of Science (B.S.) Bachelor of Education, Wirtschaftswissenschaften im Profil Handelslehramt / Informatik at Kiel University
German, English
Github Skills (8)
code-formatting10
scala10
testing9
refactoring9
algorithms6
algorithm6
data-structures6
data-structure6
Programming languages (14)
Github contributions (5)
scalameta/scalafmt
Feb 2017 - May 2017
Code formatter for Scala
Role in this project:
Backend Developer
Backend DeveloperContributions:6 commits, 10 PRs, 31 comments in 3 months
Contributions summary:Alexej primarily contributed to the core logic of the code formatter. They focused on implementing a new feature to add newlines before top-level statements, and they also addressed edge cases related to it. Furthermore, the user fixed formatting issues, incorporated test cases, and corrected compilation errors. They also made several code adjustments to comments and annotations.
scalaformatter
Daxten/bay-scalajs.g8
Feb 2016 - Jun 2017
A ScalaJs Template with scaffolding, postgres, scalajs-react and play-framework in the backend
Contributions:1 release, 117 commits, 112 pushes in 1 year 4 months
backendplayframeworkpostgresqlscalajsscalajs-react
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