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A hard-working, Detail-oriented, problem solver with creative solutions, and self-motivated Mobile Application Developer. Someone who has great ambition to change the world for the better through the lines of code that he wrote. Based on Steve Jobs Think Different principle. With more than 6+ years of experience in mobile application development, I hope to make unique and different breakthroughs in solving problems through technology. Through mobile applications, I hope to become a world-class developer that is useful for life.…A hard-working, Detail-oriented, problem solver with creative solutions, and self-motivated Mobile Application Developer. Someone who has great ambition to change the world for the better through the lines of code that he wrote. Based on Steve Jobs Think Different principle. With more than 6+ years of experience in mobile application development, I hope to make unique and different breakthroughs in solving problems through technology. Through mobile applications, I hope to become a world-class developer that is useful for life.

Yusuf Umar Hanafi

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A hard-working, Detail-oriented, problem solver with creative solutions, and self-motivated Mobile Application Developer. Someone who has great ambition to change the world for the better through the lines of code that he wrote. Based on Steve Jobs Think Different principle. With more than 6+ years of experience in mobile application development, I hope to make unique and different breakthroughs in solving problems through technology. Through mobile applications, I hope to become a world-class developer that is useful for life.…A hard-working, Detail-oriented, problem solver with creative solutions, and self-motivated Mobile Application Developer. Someone who has great ambition to change the world for the better through the lines of code that he wrote. Based on Steve Jobs Think Different principle. With more than 6+ years of experience in mobile application development, I hope to make unique and different breakthroughs in solving problems through technology. Through mobile applications, I hope to become a world-class developer that is useful for life.

Available to hire

A hard-working, Detail-oriented, problem solver with creative solutions, and self-motivated Mobile Application Developer. Someone who has great ambition to change the world for the better through the lines of code that he wrote. Based on Steve Jobs Think Different principle. With more than 6+ years of experience in mobile application development, I hope to make unique and different breakthroughs in solving problems through technology. Through mobile applications, I hope to become a world-class developer that is useful for life.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Indonesian

Fluent

English

Advanced

Work Experience

Senior Flutter Developer at Wolkk

October 1, 2022 - Present

Led the development of a Flutter-based POS and mobile applications for Wolkk, applying BLoC/Cubit for state management and Clean Architecture. Implemented CI/CD with GitHub Actions and created a standardized Flutter project template to improve development efficiency. Integrated platform channels to connect Flutter with native Kotlin, C++, and Swift code, boosting performance and functionality. Also managed a project team for a Windows desktop POS app for a Germany-based client, coordinating with product managers and clients, performing code reviews, and guiding the team's progress. Implemented a method-channel framework to bridge native code, enabling seamless cross-platform features.

Flutter Developer at Volantis.io

October 1, 2021 - October 1, 2022

Contributed to the CUiT Flutter app by enhancing UI/UX and implementing Firebase Authentication, Cloud Firestore, Firebase Crashlytics, Firebase App Distribution, and Firebase Dynamic Links to improve user experience and reliability. Built a custom Flutter method channel to integrate a camera AI 3rd-party library (Kotlin/Swift), boosting performance. Implemented performance enhancements in the Buzzco app by applying MVVM architecture and Cubit state management, and integrating advanced Flutter packages for a smoother UX.

iOS Developer Intern at Apple Developer Academy | UC Surabaya

February 1, 2021 - December 1, 2021

Developed an interactive COVID-19 game using Swift Playgrounds; WWDC 2021 award recognized for innovation and creativity. Created a portfolio of iOS apps using Swift, UIKit, and SwiftUI, applying MVVM and VIPER patterns. Designed real-time heart-rate monitoring functionality for an emergency safety app on iOS and watchOS, ensuring seamless integration with Apple devices.

Mobile Developer Lead at Zeniora Education

December 1, 2020 - February 1, 2022

Led mobile development team in building Zeniora app using Flutter with MVVM and Provider, delivering a clean, maintainable codebase. Achieved a top 10 ranking in the Play Store education category and a 4.9/5.0 rating from 1800+ reviews. Implemented Scrum/Agile processes to improve collaboration and timely delivery. Integrated Zeniora App with Midtrans Payment Gateway in WebView to enable in-app transactions. Implemented CI/CD pipelines to automate builds and deployments, accelerating release cycles.

Quality Assurance Intern at PT Sofco Graha

July 1, 2019 - August 1, 2019

Implemented automated testing scripts using Selenium for a human resources website product, ensuring high software quality standards and efficient bug detection during the QA internship.

Laboratory Research Assistant at B201 Telematics Laboratory

January 1, 2017 - September 1, 2020

Led a multidisciplinary team to design and develop a multimedia data visualization application for telematics research. Assisted in researching cutting-edge multimedia technologies and mentored Flutter developers. Developed a comprehensive laboratory practicum program for new Electrical Technology Faculty students, improving hands-on learning and knowledge retention. Led assistants to manage laboratory tests and ensure smooth operations. Conducted introductory C++ workshops for STTAL students.