Zac Sung (宋凡宇) 9 years of software development experience Familiar with embedded Linux, C++/C/Python programming Familiar with Agile software development process Experienced in test automation Interested in problem-solving with different approaches Interest and ability to learn other coding languages/technique as needed Taipei City, Taiwan [email protected] Zac SungEXPERIENCE Staff Software Engineer • VicOne (A subsidiary of Trend Micro ) SepNov 2023 | 2 yrs 3 mos Developed Secure OTA (Over-the-Air) Update related functions on Linux-based and Android-based systems. Improved automotive software update security and

to improved online visibility. JuneOctober 2020 Senior Software Engineer Innovature • Spearheaded software development projects, achieving a 20% reduction in project delivery time through streamlined processes. • Led a team of 4 developers, resulting in a successful product launch within a record-setting timeline of 10 months. • Implemented innovative coding practices, leading to a 15% improvement in overall code efficiency and maintainability. • Collaborated with cross-functional teams to deliver 7 software solutions, garnering client accolades and contributing to a 30% increase in client satisfaction. OctoberApril 2018 Software Engineer Zuken Inc. • Orchestrated the development of coherent web

系統專案規格確認、資料表設計、物件介面制定 - 主要工作為後端，使用PHP搭配Laravel框架，開發Restful API - 與團隊成員討論開發規範，如coding style、laravel架構擴展等 - 使用phpunit撰寫unit test，確保程式品質 - 前端使用Vue框架，實作SPA，串接Restful API、頁面套版 相關專案 - 開發實作訂單 、 繳

handling 10,000+ data items and supporting large-scale file uploads. Advanced cross-platform compatibility using PWA technology, aligning with the latest web standards. Combined front-end and backend technologies to design industry-standard reports for business printing solutions. Independent Contractor (System Engineer), Various Clients Technologies: PHP (OOP), Python, Ruby, RoR, Node.js, jQuery, Java, Java Web, Golang, C, C++, Microsoft Office Macro (VBA). Delivered custom solutions across diverse technology stacks, addressing specific client needs. Demonstrated versatility by undertaking multiple roles from coding and debugging to strategic developmen...

Intern — Streams Inc. • JulJun 2017 Use PHP/MySQL to develop and maintain the background system. Responsible for the development and design of the company website . Skills Frontend Vue2/Vue3, Vue-i18n , Vuex/Pinia, TypeScript Nuxt2/Nuxt3, Nuxt-i18n, Nuxt-content RWD , SCSS, Element UI/Element Plus, Tailwind Chart.js, D3.js Storybook 7 Webpack, Vite Integrate LightHouse CI to identify website performance issues SEO analysis, structured data setting Unit testing with Vue-testing-library, Jest Coding style management with ESLint Error tracking with Sentry Backend/Dev...

App, focusing on enhancing user experience and functionality. Key responsibilities included: - Employed MVVM Architecture with RxSwift for app development. - Utilized ReactorKit to seamlessly bind view state and actions. - Implemented the NFT feature, including Rooit Alpha Cell and Roo. - Generated Xcode project using XcodeGen. - Maintained consistent coding style with SwiftFormat. - Introduced the Shop tab feature to enrich app functionality. - Modularized app features into smaller frameworks for improved scalability. - Wrote comprehensive UnitTest cases to ensure code robustness. For DevOps Responsibilities: - Constructed API Gateway services to integrate external client API requests. - Utilized Prometheus

design Drive design architecture of the sportsbook system Average latency on odds synchronization is less than one second Wager throughput on single node is about 900 per second Lead team refactor report system for stable, flexible and maintainable Simplify data synchronization process, replace Canal, Cassandra to TiDB Make our system data latency seldom over 1 minute Reduce a half time on new feature development Coding Design and implement architecture of P2P payment system Optimize slow SQL query and reduce our system requirement Refactor payment system to reduce overall development time 30% on add a new payment Bac...