Chester De Guzman

Senior Full Stack Engineer with 7+ years of experience building scalable, high-performance web and mobile applications, specializing in React and modern frontend ecosystems. Proven expertise in developing complex UI systems, data-intensive platforms, and highly interactive user experiences across both web and mobile environments. Strong experience delivering end-to-end solutions using Node.js and Python, including API design, system integration, and performance optimization.

Hands-on experience in cross-platform mobile development using React Native for iOS and Android. Solid background in Vue (Vue 2 & Vue 3, Vuetify) and building maintainable, scalable architectures in distributed team environments.

Senior Full Stack Developer at FunctionHealth (2025-01 – 2026-02)

• Built scalable, high-performance applications using React and TypeScript for healthcare analytics platforms.
• Developed advanced data visualization systems using D3.js and Recharts for real-time insights.
• Integrated and optimized GraphQL and REST APIs, improving data-fetch efficiency and reducing latency.
• Contributed to backend services using Node.js and Python for data processing and API performance improvements.
• Implemented robust state management and caching strategies using React Query.
• Developed and maintained cross-platform mobile applications using React Native for iOS and Android.
• Optimized mobile performance and ensured consistent user experience across devices.
• Contributed to CI/CD pipelines and monorepo architecture, improving deployment speed and reliability.
• Collaborated cross-functionally to deliver scalable, production-grade systems.

Full Stack Developer (React / Vue / Node / Python) at Redlizard Studioz (2021-08 – 2024-12)

• Developed complex frontend systems using React and TypeScript for interactive applications.
• Built scalable UI architectures and reusable component systems.
• Utilized Vue 2 and Vue 3 with Vuetify for diverse product requirements.
• Built backend services and APIs using Node.js and Python for real-time systems.
• Designed scalable state management architectures (Zustand, Redux, Vuex, Pinia).
• Engineered dynamic visualization and transformation tools for creative platforms.
• Led development of multiple cross-platform mobile applications using React Native for iOS and Android.
• Integrated mobile apps with backend APIs and implemented efficient state management solutions.
• Improved application performance and maintainability through architectural enhancements and code reviews.

Frontend Developer at KaizenPH IT Solutions (2018-06 – 2021-07)

• Developed frontend applications using React, Next.js, and Redux.
• Contributed to scalable UI systems and reusable frontend architecture.
• Built API service layers to streamline backend communication.
• Implemented authentication systems using AWS Amplify and third-party providers.
• Optimized performance for data-heavy applications.
• Integrated Builder.io to enable no-code content management.

Bachelor of Computer Science in Computer Science – Siena College of Taytay (2014 – 2018)