John Kostava
Senior Full Stack Developer at Upwork
Tbilisi, Georgia
Summary
👤
Senior🎓
Top SchoolJohn Kostava is a Senior Full Stack Developer with 9 years of experience building enterprise web applications across education, banking, and healthcare from Tbilisi, Georgia. He currently delivers new features in Angular and NestJS while maintaining legacy React/Node projects, and has a strong testing culture using Jest and Cypress. A seasoned collaborator in Agile teams, he has led architecture, coding standards, and mentoring efforts at EMIS and contributed to NX-based UI libraries and state management patterns in multiple roles. As an Expert-Vetted Upwork freelancer and Toptal contractor, he pairs hands-on implementation with client-facing delivery, often bridging front-end and occasional back-end work (PL/SQL). He’s passionate about improving code quality and developer experience, evidenced by writing Storybooks, migrating modules to library formats, and enforcing style guides.
9 years of coding experience
5 years of employment as a software developer
Information Technology, Information Technology at Tbilisi State University
Github Skills (45)
unit-testing10
foundation10
swift-package-manager10
tvos10
hmac10
aes10
swift10
uikit10
boost10
watchos10
swiftui10
digest9
ios9
rsa9
des9
Programming languages (3)
Github contributions (5)
VatoKo/VaTo
Nov 2016 - Mar 2019
Contributions:1 push, 1 branch in 2 years 4 months
VatoKo/SwifterSwift
May 2020 - Jul 2020
A handy collection of more than 500 native Swift extensions to boost your productivity.
Contributions:26 pushes, 4 branches in 1 month
cocoapodsswift-package-managerproductivityswift-extensionsextensions
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