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Arief Daffa

@ariefdaffa

Frontend Developer at CODE.ID who shipped a WeChat Mini Program with 80%+ test coverage across 238 tests.

At CODE.ID, I shipped a production WeChat Mini Program using Taro, React, and TypeScript, and managed its deployment lifecycle through TCMPP. I also developed platform services and designed event tracking across the user journey.

At PT FAN Integrasi Teknologi, I engineered web portals for institutions including Bank Tabungan Negara (BTN), PT Kereta Api Indonesia (KAI), BP Tapera, KB Bank, and Jalin Pembayaran Nusantara. I modernized monolithic modules with React.js and Next.js to improve load latency and UI responsiveness.

At PT Tokopedia, I contributed to the Web Platform team maintaining the Search component, profiling performance and refactoring components to address runtime bottlenecks. Earlier, at KawanBantu, I advanced from Frontend Developer to Lead Frontend Developer and helped scale its crowdfunding platform.

Experience

Work history, roles, and key accomplishments

Current

Frontend Developer

Current

CODE.ID

Dec 2025 - Present (10 months)

Architected and shipped a production WeChat Mini Program using Taro, managing full deployment lifecycle via TCMPP. Engineered core platform services and enforced 80%+ test coverage across 238 tests.

Taro React TypeScript TCMPP WeChat DevTools CI CD Testing

Frontend Web Developer

PT FAN Integrasi Teknologi

Aug 2023 - Dec 2025 (2 years 4 months)

Engineered mission-critical web portals for tier-1 institutions including Bank BTN, PT KAI, and KB Bank. Refactored monolithic modules to React.js and Next.js, improving performance and responsiveness.

React Next.js TypeScript JavaScript REST APIs Performance Optimization

Software Engineer Intern (Web Platform)

PT Tokopedia

May 2022 - Dec 2022 (7 months)

Contributed to the core Web Platform team maintaining Tokopedia's Search component serving millions of daily queries. Conducted diagnostic profiling and automated testing to improve performance.

Web Platform Search Profiling Testing Automation Refactoring

Lead Frontend Developer

KawanBantu

Sep 2021 - Apr 2022 (7 months)

Promoted from Frontend Developer to Lead; defined frontend architecture and standardized code reviews. Scaled crowdfunding platform serving 5,000+ daily active users.

Frontend Architecture Code Review Scaling Crowdfunding

Education

Degrees, certifications, and relevant coursework

Universitas Brawijaya

Bachelor of Computer Science, Informatics

2019 - 2023

Grade: 3.76 / 4.00

Activities and societies: Head of IT Development (PK2 & Startup Academy); active contributor to Basic Computing Community (BCC).

Bachelor of Computer Science (Informatics) with a GPA of 3.76/4.00. Led the IT Development team for PK2 and Startup Academy, delivering a web portal for 900+ freshmen.