Nick William - Senior React Native Developer

React Native Engineer with over 5 years experience Builds and delivers smooth and high-quality applications. Experienced in multiple industries, including banking, fintech, cryptocurrency, education, and renewable energy. Strong problem-solving skills, especially in app performance optimization. Love to interview and onboard new members. Enjoy training and supporting new members. Ability to do presentations. Communicate efficiently in English. Communicate with other teams (BA) business analyst, Product Owner, Design Team to understand the requirements from stakeholders.

Project list

RWE - Germany

This is an electricity production and trading project in the Asia-Pacific region, Europe and the United States

Led a comprehensive refactor of the application codebase, enhancing maintainability and scalability.Identified, analyzed, and resolved critical performance issues, boosting the application's performance score from 45 to 90.Successfully migrated the React Native framework from version 0.63 to 0.72.4, ensuring the application is up-to-date and leveraging the latest features and improvements.Built a complete feature flow for app notifications using Apple Push Notification Service (APNS), enhancing user engagement and communication.Developed high-performance functions to interact with and process large volumes of real-time data efficiently, ensuring seamless and responsive user experiences.Collaborating with the Technical Solution Manager (SM) on technical suggestions for UI/UX improvement is integral to enhancing our product and eliciting positive feedback from stakeholders.

Technologies: JavaScript, C#, Swift, Kotlin, Postman, VS Code, Git, MySQL, GitLab CI/CD, GitHub Actions, React Native, Redux, Flutter, REST API

Vikki Digital Bank

This is project that Build Digital bank application from scratch

Developed a digital banking application from scratch.Implemented Universal Link Dynamic for multiple environments and domains.Built internal React Native library using Native code to integrate with React Native app.Integrated core banking platforms and third-party systems.Conducted training sessions and shared technical knowledge with the team.Measured and optimized application performance.

Technologies: JavaScript, Java, Swift, Kotlin, VS Code, Git, MySQL, GitHub Actions, React Native, REST API

Fonos Application

Fonos is a digital content application including Copyrighted Audiobooks, Book Summary, Meditation, Ebook and many other rich content, to support the development of spiritual life and career for busy people.

Worked collaboratively with the team to rebuild the Fonos app (version 3), implementing a new codebase, enhancing UI, and ensuring scalability. Contributed to design discussions focusing on application architecture, Ul structure, and code organization.Utilized React Native debugging tools like Profiler, React Native Performance, and Flipper to identify and resolve performance issues, notably fixing a critical app responsiveness problem after launch.Developed comprehensive test plans for new features, ensuring smooth releases, and collaborated closely with QA for quality assurance.Supported the marketing team with technical solutions for executing promotions within the app, implementing remote configuration techniques for seamless updates.Engaged with Customer Support to gather user feedback, driving bug fixes and feature enhancements to meet user expectations.Collaborated closely with the QA and QC teams, offering support in testing and resolving bugs and implementing new features.

Technologies: JavaScript, Swift, Kotlin, Postman, VS Code, Git, MongoDB, GitHub Actions, React Native, Node.js, Next.js, REST API

Nami Exchange

Crypto Spot & Futures Exchange crypto Investment and Trading App

Developed and shipped new features to enhance user experienceRebuilt the user interface for the Nami applicationOptimized codebase and improved app performance by handling real-time data in the price list

Technologies: JavaScript, Kotlin, VS Code, Git, MySQL, GitLab CI/CD, React Native, Swift, REST API

Merchant Location

Merchant Location typically refers to the physical or virtual location where a merchant conducts their business activities, interacts with customers, or manages their operations.

Create the structure of the source code to implement the project.Review the code of members of the team.Discuss with members to implement tasks.Discuss with BA to clear requirements.Support members of the team

Technologies: JavaScript, Kotlin, Postman, VS Code, Git, MySQL, GitLab CI/CD, React Native, Node.js, Redux, Swift

Momo Chat

This is part of the Momo App, allowing users to text and send pictures on mobile devices.

CodingTestingCollaborated closely with the QA and QC teams, offering support in testing and resolving bugs and implementing new features.

Technologies: JavaScript, Swift, Kotlin, Postman, VS Code, Git, MySQL, GitLab CI/CD, React Native, Node.js, Next.js, Redux, gRPC

Momo

This is an e-wallet platform, allowing users to make payments and transactions on mobile devices.

Developed two mini-games, "Momo City" and "Momo Academy, " utilizing React Native with React Native Reanimated v1 and React Native PanGestureHandler. These games featured smooth animations and interactions, ensuring a seamless gaming experience even on low-end Android devices. Actively participated in the development of Momo App v3, which introduced a new application architecture with the inclusion of Platforms and mini-apps.Built the Momo Contact API to facilitate contact data synchronization with the server and provide a means for mini-apps to access and manage contact information.Worked closely with the Product Owner team to develop new and improved features within these mini-apps.Engaged in design discussions, contributing valuable insights on application architecture and providing input on key decisions.Collaborated closely with the QA and QC teams, offering support in testing and resolving bugs and implementing new features.Worked in close partnership with the Product Owner team to implement new functionalities, including money transfers, cash-in from banks, and loyalty programs.

Technologies: JavaScript, Objective-C, Swift, Kotlin, Postman, VS Code, Git, MySQL, MongoDB, GitLab CI/CD, React Native, Node.js, Next.js, Redux, gRPC, REST API

Project list

Education

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