Increased parent user retention by prioritizing high-impact features from user feedback, conducting A/B tests and experiments, and improving ease of use. Achieved a 5% ARR increase in the first six months. Implemented interactive features and real-time messaging to enhance member engagement.

Founder/Frontend Lead Engineer at Cribit, Inc.

August 1, 2024 - October 2, 2025

Led a team of frontend developers, established biweekly sprint cycles, and set technical direction for React/Redux-based frontend. Collaborated with design and backend teams to deliver a robust MVP with GPT-3/ Firebase-enabled user profiles and enhanced UI.

Back-End Engineer at Atelier API Extension (SDC-Snakes/QA-Services-API)

May 1, 2023 - October 2, 2025

Developed and optimized API server and database to support a growing eCommerce app (millions of products, questions/answers, reviews). Built scalable RESTful APIs, performed load testing, reduced query latency from 1800ms to 23ms, and horizontally scaled the app using 3 AWS EC2 instances and Nginx, achieving 300% RPS growth.

Frontend Developer at Joon Health (YC W2022)

September 1, 2025 - October 2, 2025

Increased user retention by prioritizing high-impact features from user feedback, conducted A/B tests and experiments, and improved onboarding and overall UX to boost engagement. Implemented front-end architecture and components for a health-tech platform, enabling real-time messaging and profile features; collaborated with backend and design to deliver a cohesive user experience.

Founder/Frontend Lead Engineer at Cribit, Inc.

August 1, 2024 - October 2, 2025

Led a frontend team, established architecture, libraries, and best practices; guided two-week sprint cycles; built responsive UI with React and Redux, integrated Firebase for data management and GPT-3 API for AI-assisted features; collaborated with designers and backend engineers to translate concepts into a polished product.