Kostas Manionis
Associate Director, Front End Engineering
Vilnius, Vilnius County, Lithuania
Summary
🤩
Rockstar🎓
Top SchoolKostas Manionis is an Associate Director of Front End Engineering with 11 years of experience building performant, developer-friendly web platforms from Vilnius. At 1stDibs he progressed from migrating legacy Backbone apps to React to leading buyer-side architecture, mentoring engineers, and shaping hiring and experimental productivity initiatives. He brings deep hands-on expertise in JavaScript, React, Relay and GraphQL, with a strong track record of diagnosing tricky bugs and tackling unreadable codebases. Kostas is particularly focused on performance—memory leak tracking, build optimizations, and mobile-first implementations—and often leads proofs-of-concept that improve site speed and developer workflow. Comfortable both coding and directing teams, he pairs technical rigor with practical product sensibility and a habit of surfacing hard-to-see issues in complex front-end systems.
11 years of coding experience
9 years of employment as a software developer
Sunrise Valley Entrepreneurship SchoolBachelor of Informatics, Information Technology Service Management, Bachelor of Informatics, Information Technology Service Management at Vilnius Gediminas Technical UniversityPanevezys "Minties" gymnasium
Lithuanian, English, Russian
Github Skills (130)
env10
visual-studio-code-extension10
autoprefixer10
declarative10
javascript10
formatter10
typescript10
mini-css-extract-plugin10
preset10
user-interface10
webpack10
frontend10
react10
jshint9
visual-studio9
Programming languages (4)
Github contributions (5)
kostasmanionis/webpack-async-chunk-names-plugin
Dec 2016 - Jul 2017
Contributions:13 commits, 4 PRs, 8 pushes in 6 months
kostasmanionis/kostasmanionis.github.io
Nov 2016 - Apr 2019
Contributions:8 pushes, 1 branch in 2 years 5 months
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