Open to opportunities

Joe Young

@joeyoung

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Frontend Engineer with 5+ years of React experience, building accessible, high-performance web and mobile UI.

United States

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What I'm looking for

I’m looking to build accessible, high-performance frontend systems with strong engineering practices—spec-driven delivery, robust automated testing, and clean state/data boundaries—while collaborating cross-functionally to ship meaningful features.

I’m a Frontend Engineer with 5+ years of experience using React to modernize and build accessible frontend applications for web and mobile across the full software development lifecycle. I prioritize performance, user experience, and cross-functional collaboration to ship features reliably.

At Dematic, I architected real-time WebSocket data layers and asynchronous client pipelines for sub-400ms updates, then led an application-wide migration to TanStack Query to eliminate runtime race conditions. I’ve also optimized critical rendering paths by refactoring legacy components with memoization and improving data processing complexity from O(n^2) to O(n).

I’m equally focused on quality and accessibility: I scaled automated testing infrastructure to 85%+ coverage using Vitest and Playwright, modernized legacy test suites with AI-assisted tooling, and helped meet WCAG 2.1 AA accessibility needs across user-facing components. I also authored spec-driven requirements and built an AI agent workflow that ran accessibility audits and CSS optimization in parallel.

Experience

Work history, roles, and key accomplishments

Frontend Engineer

Dematic

Sep 2021 - May 2025 (3 years 8 months)

Architected real-time WebSocket data layers and asynchronous client pipelines for sub-400ms data updates and dynamic visualization rendering at high concurrency. Migrated the application to TanStack Query and improved rendering performance and automated testing coverage to 85%+.

WebSockets Asynchronous Client Pipelines Tanstack Query React Query Server State Caching Performance Optimization Memoization Vitest React Testing Library Playwright Testing Automation CI CD

Frontend Engineer

Purple Rock Scissors

Oct 2020 - Sep 2021 (11 months)

Modernized a healthcare SPA by refactoring legacy class components into type-safe functional React components with TypeScript, improving rendering by reducing unnecessary re-renders by 30%–50%. Built client-side GraphQL query structures to reduce payload sizes by 40%–60% and refactored components to meet WCAG 2.1 AA accessibility standards.

React TypeScript GraphQL Performance Optimization WCAG 2.1 AA Accessibility Testing

Software Engineer (Frontend)

FlightSafety International

Jan 2020 - Oct 2020 (9 months)

Improved Core Web Vitals (INP and LCP) by 25% across pilot eLearning applications through profiling client-side bottlenecks and optimizing React rendering cycles. Led TDD adoption by authoring unit test suites, increasing automated test coverage from 0% to 70% and reducing regression risk.

React Rendering Optimization Performance Profiling Unit Testing Testing Automation Regression Testing