Kai User
@kaiuser12
Full Stack Engineer at CreativIn, building client-facing features; solo-rewrote PassingLab’s paid exam platform with 24 tables and ~24,000 lines of TypeScript.
IndonesiaWhat I'm looking for
At CreativIn, I build and ship client-facing web features end to end with TypeScript, React, and Node.js. I also contribute to architecture and data-modelling decisions with the product team.
On PassingLab, I was the sole engineer on a full rewrite of a live, paid Laravel exam platform to Next.js. I migrated 24 tables and built an exam engine with reliable answer autosave, a server-side timer, and question ordering that persists across reloads.
I also closed an inherited account-takeover vulnerability with purpose-scoped, single-use OTPs and database-backed rate limiting, and made QRIS payments safe to retry by re-verifying provider webhooks. The rewrite comprises about 24,000 lines of TypeScript.
As a freelance full-stack engineer, I build web and mobile apps for small businesses and founders, from requirements and data modelling through deployment and maintenance. My projects include an influencer marketplace, a native Android music player, and a personal finance app.
Experience
Work history, roles, and key accomplishments
Full Stack Engineer
CreativIn
Jul 2026 - Present (4 months)
Build and ship client-facing web features end to end with TypeScript, React, and Node.js, covering schema, API, and UI. Contribute to architecture and data modelling decisions with the product team.
Freelance Full Stack Engineer
Self-employed
Dec 2022 - Present (3 years 11 months)
Build web and mobile apps for small businesses and founders, from requirements and data model to deployment and maintenance.
IT Support Specialist
Alchemist Law Office
Sep 2024 - Sep 2025 (1 year)
Supported staff with hardware, software, and network issues; maintained the office's Excel workflows.
Web Designer
UTERO Indonesia
Dec 2022 - Mar 2023 (3 months)
Designed and built responsive web pages from brand and layout requirements.
Education
Degrees, certifications, and relevant coursework
BINUS University
Bachelor of Computer Science, Computer Science
2024 -
Pursuing a Bachelor of Computer Science with an expected graduation in September 2028.
SMK Telekomunikasi Darul Ulum
Software Engineering (RPL), Software Engineering
2021 - 2024
Completed a Software Engineering (RPL) program, focusing on software development fundamentals.
Availability
Location
IndonesiaAuthorized to work in
Website
zaidanikram.idPortfolio
passinglab.idSalary expectations
Social media
Job categories
Interested in hiring Kai?
You can contact Kai and 90k+ other talented remote workers on Himalayas.
Message KaiGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
