Yosef W
Senior Web Developer at Crowdo
Central Sumba Regency, East Nusa Tenggara, Indonesia
Summary
👤
Senior🎓
Top SchoolYosef W is a Senior Web Developer with 10 years of hands-on experience building and modernizing Ruby on Rails applications, focused on performance, scalability, and maintainability. He has driven optimizations that cut memory and response times, introduced Docker-based workflows, consolidated dependency management, and established automated testing to reduce production issues. Comfortable integrating APIs like Twilio and Stripe and working with Redis, ElasticSearch, Sidekiq, AWS/GCP, he also created a Rails service to simplify consuming the Odoo API. Beyond day-to-day engineering he contributes to open-source maintenance—refactoring legacy A/B-testing code in the well-known AgileVentures WebsiteOne project—which reflects his attention to cleanup and long-term code health. Based in Central Sumba, Indonesia, Yosef blends practical DevOps practices with product-minded backend work and a knack for translating messy legacy systems into reliable platforms.
10 years of coding experience
5 years of employment as a software developer
Full Stack Web Development Certification, Computer Software Engineering, Full Stack Web Development Certification, Computer Software Engineering at Free Code CampBachelor, Information Technology, 3.46/4, Bachelor, Information Technology, 3.46/4 at STMIK Asia
Indonesian, Indonesian
Stackoverflow
193reputation
7kreached
11answers
1question
Github Skills (14)
rails10
ruby-on-rails10
ruby10
agile9
agile-development9
database-migration8
database-migrations8
capistrano6
asdf-vm6
webpack6
webpacker6
asset-pipeline6
rspec5
cucumber5
Programming languages (12)
Github contributions (5)
AgileVentures/WebsiteOne
Aug 2017 - Jul 2021
A website for Agile Ventures
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 15 commits, 12 PRs in 3 years 11 months
Contributions summary:Yosef primarily focused on refactoring and removing legacy code related to the "Vanity" A/B testing gem. They disabled the gem across multiple controllers, including application, authentication, registration, and subscription controllers, as well as in view files. The user also removed the migration file associated with the gem and cleaned up commented-out code. These changes streamlined the codebase by removing unused functionality.
herokuventurescodeclimatesemaphore-cicapybara
kemenag-sumteng/bdd
Apr 2019 - May 2019
Contributions:131 pushes, 4 branches, 22 tags in 11 days
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