Jacky Efendi
Senior Software Engineer at Sticker Mule
Special capital Region of Jakarta, Indonesia
Summary
👤
Senior🎓
Top SchoolJacky Efendi is a Senior Software Engineer with 11 years' experience building high-performance web experiences, design systems, and developer tooling from Jakarta. He specializes in frontend engineering but pairs that expertise with a strong understanding of platform and build infrastructure—having led migrations to pnpm, introduced Next.js+Preact microsites, and slashed build and LCP timings at Tokopedia. Currently at Sticker Mule, he combines hands-on implementation with tech leadership experience as a former tech lead and principal engineer who mentors teams and presents at industry forums. Jacky’s background includes building PWAs, optimizing mobile web performance, and improving developer workflows to reduce friction and errors. He is pragmatic about trade-offs and often bridges product, design, and infra concerns to deliver measurable improvements.
11 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 of Applied Science (B.A.Sc.), Information Technology, Bachelor of Applied Science (B.A.Sc.), Information Technology at Politeknik Caltex Riau
Indonesian, English
Stackoverflow
4,894reputation
1.1mreached
90answers
13questions
react-hooks
top-5%
javascript
top-5%
Github Skills (200)
sarif10
browser10
dotenv10
lighthouse10
react-ssr10
audit10
typescript-compiler10
fetch10
react-router10
auditing10
react-loadable10
user-interface10
react-apollo10
keyboard-navigation10
frontend10
Programming languages (8)
Github contributions (5)
jackyef/profile-overflow
Jun 2022 - Sep 2022
Contributions:41 commits, 2 pushes in 2 months
jackyef/my-site
Jan 2020 - Jan 2023
Personal playground for tinkering with stuff; contains the code for jackyef.com
Contributions:3 reviews, 305 commits, 146 PRs in 3 years 1 month
playgroundtinkering
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