Kai König
Senior Data Analyst
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolKai König is a Senior Data Analyst and seasoned engineering leader with 15 years of experience building data platforms, backend systems, and product-focused teams from Berlin. He combines hands-on skills in Python, Ruby, SQL, Java and HTML with proven leadership—scaling teams, introducing agile practices, and turning legacy systems into incremental, maintainable replacements (notably a Scala 3 payment/invoicing rebuild). Kai has driven analytics adoption with BigQuery/Metabase and DBT, shifting teams from bottlenecks to self-service platforms while mentoring engineers and founders. He contributes to open-source database tooling—improving Propel2’s schema and decimal handling—demonstrating attention to edge cases in data types and schema generation. Outside work he pursues art, travel and sailing, having led watches in the Clipper Round The World Race, a background that surfaces in his calm decision-making under pressure. He holds a Computer Science degree from Otto-Friedrich-Universität Bamberg and blends entrepreneurial curiosity with operational rigor.
15 years of coding experience
17 years of employment as a software developer
Computer Science, Computer Science at Otto-Friedrich-Universität Bamberg
English, German
Github Skills (10)
php10
schema-design10
orm10
schema10
database-design10
db-schema10
database-schema10
mysql9
sql9
testing8
Programming languages (16)
Github contributions (5)
propelorm/Propel2
Mar 2015 - Mar 2015
Propel2 is an open-source high-performance Object-Relational Mapping (ORM) for modern PHP
Role in this project:
Database Engineer / Database Administrator
Database Engineer / Database AdministratorContributions:7 commits, 2 PRs, 2 comments in 1 day
Contributions summary:Kai contributed to the Propel2 ORM, specifically focusing on database schema and data type handling. Their work involved adding support for decimal fields with a scale of zero, addressing edge cases in data type size and scale configuration, and improving database schema generation, as evidenced by the code modifications across schema definition files and platform-specific code. They also implemented tests to validate the correct behavior of decimal fields in database interactions.
ormphppropel
kairichard/kairichardkoenig.de
Aug 2019 - Oct 2022
Contributions:119 commits, 115 pushes, 1 branch in 3 years 2 months
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