Alex Chen

Lead frontend architecture and development for cloud-native SaaS platform. Mentor junior engineers, establish coding standards, and drive AI-assisted development workflows across the engineering organization.

Enterprise Design System

• Built a comprehensive design system serving 40+ product teams with 200+ components, achieving 95% UI consistency and reducing design-to-development time by 60%.
• React, TypeScript, Storybook, CSS-in-JS (Stitches), Radix UI, Changesets, Semantic Release
• Architected component library, established accessibility standards (WCAG 2.1 AA), implemented automated visual regression testing, and led adoption across engineering teams.
• Tech Stack: React TypeScript Storybook CSS-in-JS Accessibility Monorepo CI/CD
• Challenges: Accessibility First: Achieved 100% keyboard navigability and screen reader compatibility for all components, passing automated a11y audits.
• Challenges: Developer Experience: Reduced component creation time from 2 days to 2 hours through CLI scaffolding and comprehensive documentation.

AI-Assisted Feature Delivery Platform

• Integrated Claude Code and GitHub Copilot into development workflow for streaming code generation, repository-context exploration, and automated test generation, reducing feature delivery time by 30%.
• React, TypeScript, Vite, Claude Code API, GitHub Copilot, OpenAI API, Streaming SSE, Tool-State Interface
• Designed human-supervised AI workflow with task decomposition, repository-context exploration, implementation planning, test generation, PR review, and documentation updates. Implemented streaming UX with tool-state interfaces, citations, and interruption/retry flows.
• Tech Stack: AI-Assisted Development Streaming UX Tool-State Interfaces TypeScript React SSE
• Challenges: Human-Supervised Workflow: Established mandatory local validation, CI checks, code review, security/permission review, and rollback readiness for all AI-generated changes.
• Challenges: Streaming UX: Built real-time streaming interface showing AI reasoning steps, tool calls, and citations with full user control and review.

Developed customer-facing features for B2B analytics platform. Collaborated with designers and backend engineers to deliver responsive, performant user interfaces.

Real-Time Analytics Dashboard

• Built interactive data visualization dashboard processing 10M+ events daily with sub-second query response times.
• React, Redux, D3.js, WebSocket, Docker, AWS Lambda
• Implemented real-time data streaming, optimized rendering performance for large datasets, and built reusable chart components.
• Tech Stack: React Redux D3.js WebSocket Performance Optimization
• Challenges: Performance Optimization: Reduced initial load time by 70% through code splitting, lazy loading, and virtualized lists.
• Challenges: Cross-Team Collaboration: Partnered with backend team to design GraphQL schema and optimize data fetching patterns.