Kees Bos
Engineer at Capitar
Randstad, Netherlands
Summary
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RockstarKees Bos is an experienced engineer with 16 years building application back-ends, databases and networked systems from the Randstad. He blends deep hands-on expertise in Python, PHP and C with strong database skills across MySQL, PostgreSQL and Oracle, and practical experience designing networks and managing routers, switches and load balancers. At Capitar he works on system integration and software development, routinely bridging application code and infrastructure. His open-source contributions span full-stack work—fixing race conditions and UI components in pyjs and enhancing backend controller DB schemas, member management and deletion flows for ZeroTierOne—showing an eye for robust API behavior and data integrity. Notably, he has tackled multi-column keys and foreign-key models in complex distributed network controllers, a detail that highlights his willingness to dive into tricky schema and concurrency issues.
15 years of coding experience
Github Skills (15)
sqlite10
ui-design10
sql10
python10
database-design10
back-end-development10
ui-components10
networking9
cprogramming-language9
javascript9
c-language9
html9
api8
apidoc8
vpn7
Programming languages (7)
Github contributions (5)
pyjs/pyjs
Jun 2010 - Sep 2015
Pyjs canonical sources. Start here!
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:286 commits, 1 PR, 1 push in 5 years 4 months
Contributions summary:Kees contributed to the Pyjamas project, demonstrating skills in front-end development and UI design by modifying UI components like `PasswordTextBox` and integrating a `MultiListener`. The user also worked on back-end functionality by fixing a race condition within the timer cancelation, adding a new module and also contributing to HTML code by creating a `HTML` component. They also contributed to the structure and layout of the project by renaming files.
pythoncanonicalsourcesstart-here
zerotier/ZeroTierOne
May 2015 - Jul 2015
A Smart Ethernet Switch for Earth
Role in this project:Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:16 commits, 18 PRs, 27 comments in 2 months
Contributions summary:Kees primarily focused on modifying the back-end controller code, specifically related to database interactions and network management features. They made significant changes to the database schema by adding foreign keys and multi-column primary keys. Their contributions included implementing network deletion and member management functionalities. These changes involved modifying SQL queries, improving API behavior, and enhancing error handling within the controller's code base.
sd-wanvpnnetworkingearthsdn
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