Developed and launched a margin opening feature enabling users to leverage trading limits, directly driving a 3% increase in overall company revenue.

OS Engineer at Onsite, Indonesia

Led margin opening feature enabling users to leverage trading limits, directly driving a 3% increase in overall company revenue. Refactored core user flows including in-box notifications, withdrawal history, and the 'more' page using clean architecture and modularization, successfully increasing month-over-month user retention by 9%. Served as the primary Technical Lead for the Customer Area module serving 9,000 daily active iOS users, overseeing login events, Online Account Opening, multi-account management, and third-party behavioral integrations. Designed and implemented a universal deep link navigation system, reducing feature integration time and improving cross-module scalability. Enforced robust local data persistence strategies using Core Data and SQLite, completely eliminating reliance on UserDefaults and successfully reducing nil-related crashes by 5%. Planned and scoped platform and services to buy and sell used motorcycles backend by Plan et moto / Platform and services to

iOS & Fullstack Engineer at Planet Bank

Engineered an iOS app from the ground up using MVVM architecture and the Combine framework, supporting users to service motorcycles, book appointments, and process warranty claims; maintained an active user base of approximately 800+ monthly active users. Built API endpoints connecting the core website, internal Content Management System, and Android apps.

OS & Full Stack Engineer at Remote, Indonesia

Engineered an iOS application from the ground up using MVVM architecture and Combine framework, supporting iOS 13+, enabling users to service motorcycle fleets, book appointments, and process warranty claims, maintaining an active user base of approximately 800 monthly users. Successfully increased crash-free sessions from 92% to 98% by creating a comprehensive Unit Testing protocol and robust error-handling across the app. Developed and optimized API endpoints connecting the core website, internal CMS, and Android apps, processing over 100 requests daily. Built a custom PHP/Laravel CMS to digitize paper-based workflows and completely redesigned the homepage, attracting 400+ monthly visitors.

Led a team of 2 engineers, driving architecture decisions and delivering a children's educational app using Core Animation Framework to drive custom video creation and interactions. Independently developed a finance education application, integrating Agora and Qiscus APIs to establish live video streaming and interactive messaging, maintaining over 100 active monthly users. Elevated engineering standards through rigorous code reviews and mentoring junior developers.

OS Developer Lead Trainee at Remote, Indonesia

Led a team of 2 engineers, driving architecture decisions and delivering a children's educational app, using Core Animation Framework to drive custom video creation and interactions. Independently developed a finance education application, integrating Agora and Qiscus APIs to enable live video streaming and interactive messaging, maintaining over 100 active monthly users. Elevated engineering standards through rigorous code reviews, resolving production bugs, and mentoring junior developers.

Student Intern at Apple Developer Academy

Co-founded the 'Hearo App', an accessibility application that leverages sign language recognition using machine learning; featured globally in the Apple Newsroom.