Alex Kim

Senior Frontend Engineer

you@email.com · (555) 456-7890 · San Francisco, United States linkedin.com/in/repolish-ai

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About

Frontend engineer with 5+ years of experience building performant web applications. Expert in React, Next.js, and TypeScript with a deep focus on Core Web Vitals, accessibility, and developer experience.

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Experience

Senior Frontend Engineer @ Vercel

2022-06 – Present

• Architected and built the Next.js application framework powering Vercel's marketing site and documentation platform, achieving 98+ Lighthouse scores.
• Developed reusable component library using React Server Components and TypeScript, adopted by 12 product teams across the company.
• Led performance optimization initiative that improved Largest Contentful Paint by 40% and Cumulative Layout Shift by 60% across key landing pages.
• Championed accessibility standards, driving compliance to WCAG 2.1 AA across all customer-facing surfaces.

Frontend Engineer @ Linear

2020-01 – 2022-05

• Built real-time collaborative editing features using CRDTs and WebSockets for the issue tracking platform.
• Designed and implemented a keyboard-first navigation system that reduced average issue creation time by 30%.
• Developed end-to-end testing infrastructure using Playwright, achieving 95% test coverage on critical user journeys.

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Education

• B.S., Electrical Engineering & Computer Science — University of California, Berkeley (2015-09 – 2019-06)

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Skills

• Core Skills: Strategic Thinking · Analytical Problem Solving · Cross-functional Collaboration · Communication
• Technical: Data Analysis · Project Management · Presentation

Open Source

• Creator and maintainer of a popular React animation library (5K+ GitHub stars)

Blog

• Write technical articles on web performance and React patterns — 50K+ monthly readers on dev.to

Speaking

• React Conf 2024 - "RSC Patterns at Scale"