JonathanJonathan Suhangita
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Jonathan Suhangita

Hi, I'm Jonathan

I'm a React Native developer based in Tangerang, and I've spent the last 6 years building mobile apps that real businesses use every day, including a 24/7 gym app for a Singapore company and a fintech app for WOM Finance that's regulated by OJK. I've integrated payments with Stripe, Xendit, and Shopee Pay, set up biometric login, and taken apps all the way to the App Store and Google Play.

Before freelancing, I taught programming. I mentored students at Swiss German University, led a game-programming workshop at Tzu Chi School PIK, and still mentor on Dealls. Teaching taught me to explain technical things in plain language, so you'll always know what's being built and why.

I studied Informatics at Universitas Pelita Harapan. Outside of code, you'll find me playing tennis or trying a new café.

What I work with

React Native · React · Next.js · Node.js · Firebase · Stripe · Xendit · Shopee Pay

Teaching

Guest lectures and workshops, from a UI/UX class at UKRIDA to summer coding at Swiss German University.

Jonathan Suhangita presenting a Good UI lecture with a microphone at UKRIDA
Guest lecture at UKRIDA, on what makes a good interface.
Jonathan Suhangita with students during questions in a UKRIDA classroom
Jonathan Suhangita receiving a guest lecturer certificate at UKRIDA, in front of a slide thanking him for the WOM Finance session
Jonathan Suhangita mentoring students at computers during the Swiss German University summer coding course
Jonathan Suhangita, wearing an SGU lanyard, mentoring a student at the summer coding course

Certificates

UKRIDA certificate for Jonathan Suhangita, guest lecturer on UI/UX Design in the Web Programming class, Jakarta, 23 October 2026
Swiss German University internship certificate for Jonathan Suhangita, workshop instructor from 31 May to 31 July 2018
Tzu Chi Secondary School certificate of appreciation for Jonathan Suhangita, workshop leader in web programming with Bubble, 23 to 27 July 2018

Experience & teaching

Teaching is where I learned to explain every step in plain language.

  1. Apr 2020–presentSingapore

    React Native Front End Developer

    The Gym Pod · Immortals Pte Ltd

    Full-time. I maintain the app on the App Store and Google Play, write clean code with unit tests, fix bugs, and integrate APIs. Payments run through Stripe and Shopee Pay.

  2. Apr 2019–Jul 2020Tangerang, Indonesia

    Frontend Developer

    Daily Act · PT Amber Media Sosial

    I built the interface to match the UI/UX team's mockups pixel for pixel, added the custom animations they asked for, and used Redux to manage the app's state.

  3. Oct 2026Jakarta

    Guest Lecturer

    UKRIDA (Universitas Kristen Krida Wacana)

    Web Programming class, on UI/UX design.

  4. Dec 2018–Jan 2019Tangerang

    Instructor / Mentor

    Swiss German University

    Part-time. I mentored a course on app programming with MIT App Inventor and game programming with Construct 2.

  5. May–Jul 2018Tangerang

    Workshop Instructor

    Swiss German University

    Internship, taught in English. I introduced mobile apps with MIT App Inventor 2, games with Construct 3, and web programming with Bubble.is, for students at Mentari Intercultural Secondary School Jakarta, Tzu Chi Secondary School PIK, and the SGU summer course.

  6. 23–27 Jul 2018

    Workshop Lead

    Tzu Chi Secondary School, Pantai Indah Kapuk

    I led a workshop on web programming fundamentals with Bubble, and taught game programming with Roblox Studio.

  7. Mentor

    Dealls

    I still mentor on Dealls.

Book a free call

20–30 minutes. No commitment, just an honest take on what's possible.

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