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Zachary Howell

@zacharyhowell

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Senior Front-End Engineer specializing in performant, accessible React/TypeScript apps.

United States

Message

What I'm looking for

I seek roles where I can lead front-end delivery, optimize performance and accessibility, mentor engineers, and ship scalable, maintainable web applications within collaborative product/UX teams.

I am a Senior Front-End Engineer with 5+ years building pixel-perfect, responsive web applications and data-intensive dashboards that scale under production traffic. I specialize in React, Angular, and TypeScript and consistently deliver 100/100 Lighthouse scores through performance optimization, Vite/Webpack bundling, and rigorous CI/CD workflows.

I have led technical delivery for 60+ enterprise accounts, achieved 3x performance gains and 99.9% uptime, and mentored junior engineers while collaborating closely with UX and product teams. I ship maintainable, well-documented code, build accessible design systems with TailwindCSS, and operate reliable deployment pipelines across Netlify and Git-based CI/CD.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

Freelance

Oct 2025 - Present (8 months)

Delivered mobile-first React/Vite/Tailwind apps achieving 100/100 Lighthouse scores via bundling, code-splitting, and image optimization; built real-time Firestore CMS dashboards and managed CI/CD to ensure 99.9% uptime.

React Vite Tailwind TypeScript Firestore CI CD

Current

Founder & Lead Full Stack Engineer

Current

Claw and Decay Clothing

Jan 2024 - Present (2 years 5 months)

Architected a responsive React/TypeScript e-commerce platform with Vite and a Tailwind component library, delivering 100/100 Lighthouse scores and maintaining 99.9% uptime through CI/CD and rigorous code review workflows.

React TypeScript Vite Tailwind Stripe REST APIs Netlify CI CD

AI Engineer Claude Code Project

Anthropic

Dec 2025 - Mar 2026 (3 months)

• Agentic Workflow Steering: Evaluated and iterated on the claude-hfi CLI tool, directing the AI
model through multi-turn interactions to reach production-ready status in complex repositories.
• PR Quality Governance: Conducted rigorous technical reviews on AI-generated diffs, enforcing
standards for modularity, error handling, and performance optimization.

Software Engineer

North American Fulfillment

Aug 2021 - Aug 2025 (4 years)

Led Angular development of 60+ client dashboards with responsive data visualizations from REST APIs/AWS S3, implemented virtual scrolling and optimized fetching to achieve 3x faster load times and 99.9% uptime.

Angular JavaScript REST APIs AWS S3 Scrolling Performance Optimization Cross Browser Testing Git