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Gilang Pangestu

@gilangpangestu

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I build scalable fintech, Web3, and healthcare applications with Nest.js, Next.js, and React Native.

Indonesia

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What I'm looking for

I'm looking to build scalable web, mobile, and backend products, particularly in fintech, Web3, healthcare, or cloud-based systems, where I can improve performance, reliability, integrations, and user-facing features.

I've built scalable fintech and Web3 platforms at Undercurrent Capital, serving thousands of users through Nest.js and Next.js applications. I designed and maintained 20+ REST API endpoints integrating blockchain and payment services.

For Tixflare and Tixbite, I delivered multi-vendor ticket checkout, Stripe and HitPay integrations, seller verification, order tracking, notifications, and payment features. I've also improved backend response times through query optimization and caching.

At Motmaena Medical Center, I migrate database and source-code components, resolve underlying business-logic issues, and build consultant scheduling and consultation workflows. At Hayati–Hijra Bank, I contributed financial calculation logic and frontend chart integrations.

My work spans Nest.js, Laravel, Next.js, React Native, Vue.js, PostgreSQL, MySQL, and cloud-based backend services. I've also integrated LLMs into mobile applications and published apps through TestFlight and Google Play Console.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Motmaena Medical Center

Mar 2026 - Present (7 months)

Working as a Backend Engineer using Nest.js, migrating from old application to new one, resolving critical bugs, and building new features for the consultant app.

NestJS Database Migration Bug fixing Business Logic Consultant App Features

Mobile Developer

Kettl

Jul 2026 - Aug 2026 (1 month)

Worked as Mobile Developer using React Native, integrating LLMs like Gemini, Open API, and Claude, handling all app features, and publishing to TestFlight and Google Play Console.

React Native LLM Integrations Gemini OpenAI Claude TestFlight Google Play Developer Console

Fullstack Engineer

Hayati – Hijra Bank

Feb 2026 - Aug 2026 (6 months)

Worked as Fullstack Engineer using Nest.js and Next.js, contributed to working capital turnover calculation, built financial health calculation logic with frontend charts, and developed open API integration.

NestJS Next.js Financial Calculation Chart Integrations OpenAPI

Fullstack Developer

Undercurrent Capital, Pte. Ltd.

Apr 2022 - Dec 2025 (3 years 8 months)

Built scalable fintech and Web3 platforms using Nest.js and Next.js, designed and maintained 20+ REST API endpoints, and improved backend performance through query optimization and caching.

NestJS Next.js REST APIs Blockchain Payment Services Query Optimization Caching

Backend Developer

NAFV

Jul 2025 - Sep 2025 (2 months)

Worked as Backend Developer using Nest.js and PostgreSQL, built and maintained backend services for MRMP Asuka.

NestJS PostgreSQL Backend Services

Fullstack Developer

Tixflare.com

Sep 2024 - Jan 2025 (4 months)

Implemented secure checkout system using Stripe supporting multi-vendor ticket sales, built seller verification, order tracking, email notifications, and address book features.

Next.js NestJS MySQL Prisma Stripe Checkout Systems Multi Vendor

Fullstack Developer

Tixbite.com

May 2023 - Jun 2024 (1 year 1 month)

Built platform pages and payment integration page, integrated 3rd-party HitPay APIs, and resolved various admin API bugs.

Next.js NestJS MySQL Sequelize HIT Pay API Integration

Technical Project Manager

Undercurrent Capital, Pte. Ltd.

Nov 2023 - Dec 2023 (1 month)

Temporarily covered the Project Manager role across 2 ongoing projects, managed team tasks per sprint, reviewed daily and weekly performance, and supported cross-team requirements.

Project Management Sprint Planning Team Management Performance Reviews

Fullstack Developer

So High

Sep 2022 - Mar 2023 (6 months)

Developed payment gateway via HitPay, gifting APIs, product APIs, and user profile APIs, and resolved bugs across mobile app, backend, and admin panel.

React Native Vue.Js Laravel HIT Pay Payment Gateways API Development

Laravel Developer

Salasar eCommerce Total Solutions Pvt Ltd

Jan 2022 - Mar 2022 (2 months)

Freelance role building e-commerce applications using Laravel and cs-cart.

Laravel CS Cart Ecommerce

Backend Developer

Qiblat

Aug 2020 - Mar 2022 (1 year 7 months)

Built web applications primarily with Laravel, CodeIgniter, and Vue.js, including project YO! Inves.

Laravel CodeIgniter Vue.Js

Fullstack Developer

Panenpa

Sep 2021 - Dec 2021 (3 months)

Maintained and enhanced existing applications and admin panel (Shikikan) using Laravel.

Laravel Maintenance Admin Panel

Fullstack Developer

KMS Edu App

Jun 2021 - Jul 2021 (1 month)

Built a web app helping posyandu provide KMS services, implemented KMS materials, quizzes with e-certificates, and admin page using Laravel and Vue.js.

Laravel Vue.Js KMS E Certificate

Backend Developer Intern

Biotropica IPB

Jan 2020 - Mar 2020 (2 months)

Built a KPI system for all employees using Laravel.

Laravel KPI Management

Backend Developer Intern

Kejar.id

Jun 2019 - Jul 2019 (1 month)

Supported education system development and learned Laravel as the primary backend framework.

Laravel Education

Education

Degrees, certifications, and relevant coursework

IPB University

Diploma, Informatics Management

2017 - 2020

Grade: 3.44

Activities and societies: Participated in SEA TVET Batch 4 (2019), coordinated by SEAMEO.

Pursued Informatics Management with a GPA of 3.44. Participated in the South-East Asian Technical and Vocational Education and Training (SEA TVET) Batch 4 in 2019, coordinated by SEAMEO.