Open to opportunities

Brandon Sligh

@brandonsligh

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Senior frontend engineer specializing in React, Next.js, and full‑stack performance optimization.

United States

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What I'm looking for

I am looking for a role where I can lead frontend development, improve performance and UX, mentor engineers, and work cross-functionally in an innovative, product-driven company.

I am a Senior Frontend Engineer with 10+ years building responsive, user-centered applications using React, Next.js, and Angular, and contributing across the full stack with Node.js and Python. I have a track record of optimizing application performance, improving UX, and creating reusable component libraries that accelerate feature delivery and maintain consistent UI standards.

At companies like Zeni, Talkiatry, Coursera, and Walmart I led responsive design efforts, integrated GraphQL and REST APIs, ensured accessibility and HIPAA compliance where required, and mentored junior developers. I seek to leverage my frontend and backend expertise to deliver scalable, high-quality products at an innovative tech company.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Engineer

Current

Zeni

Mar 2021 - Present (4 years 11 months)

Architected and developed core frontend components for an AI-driven financial platform using React and Next.js, established a reusable component library, and collaborated on Node.js/GraphQL APIs to deliver real-time financial insights and improved mobile compatibility.

React Next.js JavaScript TypeScript Node GraphQL Responsive Design Component Libraries API Integration

Senior Frontend Engineer

Talkiatry

Jan 2019 - Feb 2021 (2 years 1 month)

Developed and optimized a HIPAA-compliant telemedicine frontend using React and Redux, integrated GraphQL and Socket.io for real-time updates, and improved patient engagement by 20% while achieving WCAG 2.1 accessibility improvements.

React Redux GraphQL Socket.IO JavaScript Accessibility Real Time Updates

Frontend Developer

Coursera

Jun 2017 - Dec 2018 (1 year 6 months)

Contributed to migration from AngularJS to Angular 8, developed interactive course modules and dashboards in TypeScript, improving performance by 15% and reducing maintenance time via a reusable component library.

Angular TypeScript JavaScript REST APIs GraphQL Performance Optimization Component Libraries UX collaboration

Frontend Developer

Walmart

Sep 2014 - May 2017 (2 years 8 months)

Contributed to migration from jQuery/JSP to React for Walmart's e-commerce platform, developed reusable components that sped checkout by 35% and ran A/B tests that improved completion rate by 10%.

React JavaScript jQuery REST APIs A B Testing Performance Optimization