Yosef Kevin Yonathan

Ruby on Rails Dev | I Fix Legacy Apps, Cut Infra Costs

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South Jakarta, Indonesia

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Meet Yosef Kevin

I'm a backend-focused developer with 10+ years of experience in Rails, GraphQL, MySQL, and AWS.
I specialize in fixing legacy apps, optimizing slow APIs, and reducing cloud costs (especially on EC2 + RDS).
I work fast, don't waste time, and deliver clean, production-ready code.
šŸ’” Need someone to upgrade your Rails app, fix N+1 queries, or move off Heroku? I'm your man.


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Rate

$25 - $50/hr

Details

South Jakarta, Indonesia

Fluent in English and Indonesian