UX/UI Developer & Engineer | Translate User Needs & Business Goals into Interfaces that Delight Users | Mobile & Web Applications | Human-Computer Interaction (HCI) | Publish to Apple App Store and Google Play Store
I’m an experienced User Experience / User Interface (UX/UI) Developer and Engineer with 6+ years of experience in React and React Native. I have proven ability to translate user needs and business goals into intuitive, engaging, and responsive user interfaces.
Led end-to-end design and development of a farm monitoring app using React Native, enabling real-time environmental data tracking and irrigation control, with an optional AI-based irrigation feature for automated decision-making.
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Designed intuitive UI/UX flows in Figma based on team-provided insights from field testing with farmers in Uganda, ensuring the app was user-friendly for managing complex farming tasks.
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Collaborated cross-functionally with scientists, engineers, and developers to integrate scientific research, feature requirements, and technical specifications into the app, ensuring usability across technical skill levels.
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Integrated machine learning-based plant health detection using photos taken by users, providing instant diagnosis and treatment suggestions to enhance decision-making.
Took full ownership of software implementation and front-end development, building software interfaces using React and React Native for a time and attendance system serving over 40,000 users.
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Integrated hardware features—including fingerprint scanning, facial recognition, and NFC/RFID card reading—via React Native Bridge and Android native code.
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Led front-end development of a web-based application for a next-generation applicant tracking system (ATS), HR, and timesheet tracking platform demo version, integrating primary human capital functions for streamlined measurement and reporting.
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Implemented SQLite, Redux, Redux Toolkit, and React Hooks for efficient state management, local storage, and offline support.
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Built real-time communication features with MQTT, improving sync and responsiveness across devices.
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Integrated GraphQL (via Apollo Client) and RESTful APIs (via RTK Query), using Banana Cake Pop and Swagger UI to test, explore, and validate endpoints, enabling seamless front-end/backend collaboration.
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Created wireframes, mock-ups, and high-fidelity prototypes in Figma, ensuring intuitive and consistent UI/UX across platforms.
Designed end-to-end user experience for web-based interfaces, mobile applications, and products —creating user journeys, user flows, mock-ups, wireframes, and prototypes using Figma, Axure RP and Adobe XD.
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Utilized storyboarding techniques to visualize user interactions and map out the flow of experiences, ensuring intuitive and engaging designs.
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Designed and built interactive dashboards for internal use, providing teams with real-time insights and control panels; ensured consistency and usability across platforms by adhering to standard design guidelines.
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Worked on the product development of a smart farming light app, paired with Sherpa Light, a lighting system that won the CES 2020 Innovation Award, optimizing growth conditions for indoor farming.
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Worked in cross-functional teams, collaborating across engineering, design, product, and scientific teams to understand agronomic needs and translate technical requirements into functional product features, ensuring alignment with both scientific and user expectations.
Co-hosted remote, user-centered design workshops for 30+ employees from Costa Rica's Ministry of Finance Culture & Digital Transformation Team—spanning engineers, customer service representatives, and other subject matter experts—via Microsoft Teams and Miro, to facilitate collaboration and guide participants in proposing methods to modernize and digitalize Costa Rica's Ministry of Finance.
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Trained teams in user research methods—including data collection, persona development, affinity diagramming, user journey mapping, storyboarding and ideation techniques—and how to create these artifacts collaboratively using Miro to identify key UX pain points and improve service design.
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This project was part of the Hacienda Digital (Fiscal Modernization) initiative, sponsored by the World Bank.
Education
Korea Advanced Institute of Science and Technology
Master of Science (M.S.)
Korea Advanced Institute of Science and Technology