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1. Senior Software Engineer (2024.01 ~ ) 2. Software Engineer (2022.06 ~ 2023.12) Adjust, an AppLovin (NASDAQ: APP) company, is trusted by marketers around the world to measure and grow their apps across platforms, from mobile to CTV and beyond. Adjust works with companies at every stage of the app marketing journey, from fast-growing digital brands to brick-and-mortar companies launching their first apps. Adjust’s powerful measurement and analytics suite provides visibility, insights and essential tools that drive better results. [Apps Settings Frontend Development Team (JUN 2022 - CURRENT)] ● Successfully migrated the mobile and CTV app settings of the Adjust suite to a new design using micro-frontends, internal UI library, react-query, and react-hook-form to improve user experience ● Played a key role in the major improvement of the onboarding process and app setup by revamping the App Settings section, which historically lacked strategy and became a cluttered toolbox that intimidated clients at the beginning of their attribution journey with Adjust suite

Taxfix is a pioneering company at the forefront of transforming the tax filing experience. Through our innovative platform, users can effortlessly and efficiently file their tax returns from any location, utilizing our user-friendly app or browser interface. With a seamless question-and-answer process, users provide information about their tax situation, allowing Taxfix to calculate potential refunds accurately. [New Market Research Team (FEB 2022 - MAY 2022)] ● Built the new crypto tax calculation web app to assist users in calculating all cryptocurrency transactions and converting these into reports ● Amplified affiliate click to user’s tax submission conversion rate from 0.93% to 2.5% and affiliate registration from 700/month to 2000/month by developing the tax refund estimator widget [Tax Expert Platform Team (FEB 2020 - JAN 2022)] ● Maintained the internal tax logic editor, built with React-Redux and Phoenix, for tax consultants to launch new markets in the EU (Projects: Workbench, Tax Engine) ● Initiated and developed the JSON editor to support the user's answers validation testing on tax logic ● Maintained the scalable and consistent UI library using atomic design principles and met 100% coverage on unit testing with JEST and Storybook ● Developed various types of form components and validations on the client side and improved the significant performance optimization of large forms on redux ● Integrated Elixir APIs to handle real-time communication on the form and contributed to testing REST APIs

● Developed 15 creative interactive data visualisations with vue.js & d3.js for data-driven storytelling with mobile-first mantra ○ Major data analysis & visualisation works ■ Interactive quiz: Ready to live with AI? ■ The colourful history of Singapore’s street names (Awarded the Bronze medal at Malofiej Award, 2020) ■ 26 patriotic songs but which one hit the mark? ■ A year of Malaysia’s Pakatan Harapan: Promises fulfilled? ■ Are you paying too much for school bus fees? Find out ● Maintained the internal google docs plugin for journalists to write down articles and generate the JSON to ship the google cloud ● Developed the news kit design system and components library using Vue.js to publish online news articles ● Analyzed large data set such as map and text with Python3 and prototyped unique data-driven charts

● Improved the user’s configurations of Babel Repl, an open-source JavaScript transcompiler editor, built with React ● Integrated babel-time-travel, a tool for the time-travel interface for babel transformations, into Babel Repl

● Conducted product launch of a new online course platform edwith.org for web, iOS, and Android, which grew to 20,000 daily active users in the first year ● Executed the platform transition from B2C to B2B, which lead to establishing partnerships with 3 IT companies, including NAVER crop, and 5 leading universities such as KAIST, POSTECH, and GIST ● Designed A/B testing for retention in online courses and introduced a new visualisation process and scoring solution, which a significant increase of 60% in retention and 40% higher average learning success