WILLIAM PARKER
Full Stack Developer
Chicago, IL · w.parker@email.com · (555) 517-2648
Summary
Full stack developer with 5 years shipping customer-facing features across React front-ends and Node.js APIs. Cut page load time by 55% and led the build of a checkout flow now processing $2M+ in monthly transactions.
Experience
Full Stack Developer · Etsy
2021 - Present
- Led rebuild of the checkout flow using React and Node.js, now processing $2M+ in monthly transactions with 99.9% uptime
- Reduced homepage load time by 55% through code splitting, image optimization, and API response caching
- Built a GraphQL layer connecting 6 internal services, cutting front-end data-fetching code by 40%
- Mentored 3 junior developers via code review, cutting average PR turnaround to under 6 hours
Software Developer · DoorDash
2019 - 2021
- Built and shipped 3 customer-facing features end-to-end, from PostgreSQL schema design to React UI
- Wrote Jest and Cypress test suites that increased coverage from 50% to 82%, cutting regression bugs by 35%
- Migrated 14 legacy endpoints from Express to TypeScript, reducing production type errors by 60%
Junior Web Developer · Grubhub
2018 - 2019
- Built responsive HTML/CSS and JavaScript components for 12 restaurant landing pages
- Fixed 80+ front-end defects in the internal ordering dashboard using React and Git workflows
- Automated weekly reporting with a Node.js script, saving the support team 5 hours per week
Education
B.S. Computer Science — University of Illinois at Urbana-Champaign · 2019
Skills
JavaScript, TypeScript, React, Next.js, Node.js, GraphQL, PostgreSQL, MongoDB, Docker, AWS, Git, Jest
Certifications
AWS Certified Developer - Associate, Amazon Web Services
AWS Certified Solutions Architect - Associate, Amazon Web Services




