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I’m a Senior Frontend Engineer with 9+ years building large-scale web and mobile applications across ecommerce, healthcare, EV infrastructure, and consumer technology products used by millions. I specialize in React, Next.js, and TypeScript, and I design frontend platform architectures that deliver high-performance interfaces and scalable component systems. I enjoy turning product requirements and Figma designs into production-grade applications and collaborating with product managers, designers, and backend engineers throughout the lifecycle. I’ve led frontend modernization efforts, improved performance, reduced code duplication, and built maintainable architectures that accelerate long-term feature delivery. I have hands-on experience with GraphQL, REST, WebSockets, and real-time services, and I contribute across the stack when needed to support API contracts, frontend-backend workflows, and tooling.…I’m a Senior Frontend Engineer with 9+ years building large-scale web and mobile applications across ecommerce, healthcare, EV infrastructure, and consumer technology products used by millions. I specialize in React, Next.js, and TypeScript, and I design frontend platform architectures that deliver high-performance interfaces and scalable component systems. I enjoy turning product requirements and Figma designs into production-grade applications and collaborating with product managers, designers, and backend engineers throughout the lifecycle. I’ve led frontend modernization efforts, improved performance, reduced code duplication, and built maintainable architectures that accelerate long-term feature delivery. I have hands-on experience with GraphQL, REST, WebSockets, and real-time services, and I contribute across the stack when needed to support API contracts, frontend-backend workflows, and tooling.

Alexander Su

Front-End Developer, Web Developer, Full Stack Developer, +3

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I’m a Senior Frontend Engineer with 9+ years building large-scale web and mobile applications across ecommerce, healthcare, EV infrastructure, and consumer technology products used by millions. I specialize in React, Next.js, and TypeScript, and I design frontend platform architectures that deliver high-performance interfaces and scalable component systems. I enjoy turning product requirements and Figma designs into production-grade applications and collaborating with product managers, designers, and backend engineers throughout the lifecycle. I’ve led frontend modernization efforts, improved performance, reduced code duplication, and built maintainable architectures that accelerate long-term feature delivery. I have hands-on experience with GraphQL, REST, WebSockets, and real-time services, and I contribute across the stack when needed to support API contracts, frontend-backend workflows, and tooling.…I’m a Senior Frontend Engineer with 9+ years building large-scale web and mobile applications across ecommerce, healthcare, EV infrastructure, and consumer technology products used by millions. I specialize in React, Next.js, and TypeScript, and I design frontend platform architectures that deliver high-performance interfaces and scalable component systems. I enjoy turning product requirements and Figma designs into production-grade applications and collaborating with product managers, designers, and backend engineers throughout the lifecycle. I’ve led frontend modernization efforts, improved performance, reduced code duplication, and built maintainable architectures that accelerate long-term feature delivery. I have hands-on experience with GraphQL, REST, WebSockets, and real-time services, and I contribute across the stack when needed to support API contracts, frontend-backend workflows, and tooling.

Available to hire

I’m a Senior Frontend Engineer with 9+ years building large-scale web and mobile applications across ecommerce, healthcare, EV infrastructure, and consumer technology products used by millions. I specialize in React, Next.js, and TypeScript, and I design frontend platform architectures that deliver high-performance interfaces and scalable component systems. I enjoy turning product requirements and Figma designs into production-grade applications and collaborating with product managers, designers, and backend engineers throughout the lifecycle.

I’ve led frontend modernization efforts, improved performance, reduced code duplication, and built maintainable architectures that accelerate long-term feature delivery. I have hands-on experience with GraphQL, REST, WebSockets, and real-time services, and I contribute across the stack when needed to support API contracts, frontend-backend workflows, and tooling.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Yahoo

February 1, 2025 - May 1, 2026

Led frontend modernization for Yahoo Mail, rebuilding inbox, conversation, compose, and message detail experiences using React, Next.js, and TypeScript; replaced legacy UI layers with reusable page-level architecture and shared components used across Yahoo products. Built highly interactive mailbox interfaces with real-time updates, unread counters, threaded conversations, attachments, and multi-pane navigation while ensuring responsive performance on desktop and mobile. Designed and implemented a Storybook-based design system with reusable UI primitives, accessible components, and consistent theming. Optimized performance with server-side rendering, route-level code splitting, lazy loading, and improved hydration flows. Re-architected data handling with GraphQL and Apollo Client, enabling normalized caching and incremental loading. Refactored state management with Redux Toolkit and custom hooks for cross-surface synchronization. Implemented feature rollouts with LaunchDarkly and added

Senior Software Engineer – frontend focus at ChargePoint

July 1, 2023 - February 1, 2025

Contributed to frontend development across ChargePoint’s EV charging ecosystem for consumer drivers, fleets, and smart home customers. Built real-time charging session dashboards displaying live charger availability, progress, energy usage, and pricing using React and TypeScript. Implemented station discovery, map-based browsing, dynamic location search, and filtering to optimize desktop and mobile experiences. Developed frontend payment and billing interfaces, including pricing breakdowns, method management, subscriptions, receipts, and history. Created reusable frontend modules shared across web and mobile apps, including pricing cards, session status indicators, and fleet UI patterns. Collaborated with designers in Figma, introduced Storybook for isolated component development, and refactored architecture using Redux Toolkit. Partnered with backend and hardware teams to translate charger telemetry into real-time user experiences and improved performance through code-splitting and

Senior Software Developer at Pear Therapeutics

January 1, 2021 - April 20, 2023

Contributed to patient- and clinician-facing applications for FDA-authorized digital therapeutics (reSET and reSET-O). Built reusable React and React Native components for therapy workflows including daily check-ins, CBT modules, journaling, reminders, and recovery milestones aligned with treatment programs. Developed clinician dashboards to review adherence and progress trends. Migrated frontend code from JavaScript to TypeScript, introducing typed API models and safer component contracts. Collaborated with product, design, and clinical stakeholders to ensure accessibility and predictable UX for regulated healthcare releases. Integrated Firebase for authentication, Firestore for data syncing, and push notifications; built offline-capable React Native flows with local caching for intermittent networks. Created internal tooling and Python-based AI insights integration for research initiatives.

Software Developer at Pear Therapeutics

April 1, 2019 - December 31, 2020

Developed patient-facing and clinician-facing components for digital therapeutics; built reusable therapy workflows including daily check-ins, modules, journaling, reminders, and progress tracking; migrated frontend codebase to TypeScript; integrated Firebase services for secure login and real-time sync; built offline-capable flows and collaborated with backend teams on API validation and integration testing.

Software Developer - Frontend at Pear Therapeutics

April 1, 2019 - December 31, 2020

Developed patient-facing and clinician-facing interfaces for digital therapeutics, focusing on therapy workflows, adherence tracking, and data visualization. Contributed to the migration towards TypeScript and safer data contracts, improving maintainability across shared frontend modules. Worked closely with stakeholders to deliver accessible, consistent experiences across regulated releases.

Software Developer - Frontend at Walmart eCommerce Global

August 1, 2016 - April 1, 2019

Developed customer-facing ecommerce features for Walmart Shopping App and web platform, contributing to product discovery, detail pages, cart, and checkout experiences used by high-traffic shoppers. Built React UI components for product listings, pricing, inventory messaging, and recommendations across desktop and mobile. Integrated catalog, pricing, and search APIs, and collaborated with backend teams to deliver cohesive checkout experiences. Improved UI consistency via reusable components and enhanced rendering performance by reducing unnecessary re-renders and optimizing Redux updates. Created internal Node.js utilities for mock APIs and QA workflows.