Ezrqn Kemboi is a pragmatic engineering leader with 8 years of experience building scalable, maintainable web applications and APIs, currently serving as Head of Engineering for a stealth startup after a Senior Backend Engineer role at Yellow Card. He combines hands-on expertise in Node.js/TypeScript, SQL and NoSQL databases, GraphQL, and system design with practical CI/CD and deployment experience, and he continuously seeks to deepen his DevOps skills. Ezrqn has led teams at The Jitu Group and mentored engineers since his early days at Andela, favoring leadership through guidance rather than management. An active open-source maintainer on validator.js, he has contributed mobile phone and locale validations that impact millions of monthly downloads. Based in Nairobi, he pairs strong computer science fundamentals with a user-focused approach to shipping robust software.
8 years of coding experience
7 years of employment as a software developer
General Education, Computational and Applied Mathematics, General Education, Computational and Applied Mathematics at Chebara Boys High School
General Studies, General Studies at Kapsowar Primary School
Bachelor's degree, Electrical and Electronics Engineering, Bachelor's degree, Electrical and Electronics Engineering at Machakos University
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Gretsa University
Contributions:89 reviews, 24 commits, 34 PRs in 2 years 9 months
Contributions summary:Ezrqn primarily contributed to the `validator.js` library by implementing and fixing mobile phone format validations for various locales. Their work involved adding new locales such as Chile, Austria (de-AT), France oversea department, and Ireland. Furthermore, the user addressed bugs related to existing validation rules, including fixes for Fiji mobile phone formats and improved the isHash and isPostalCode functionality.
This application is a library management including stocking, tracking and renting books
Contributions:198 commits in 9 months
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Ezrqn Kemboi - Head Of Engineering at Stealth Mode