Senior Front End Engineer: React/Next.js & TypeScript

Ethereum Technologies LLC; Plano (TX); On-site; USD 98,000 - 139,000; Full time

Job summary

Ethereum Technologies seeks a Senior Front End Developer to lead the design and development of scalable, enterprise web apps. You will own frontend architecture and collaborate with product, design, backend, QA, and architecture teams to deliver production-ready solutions.

You will work with React, Next.js, and TypeScript to craft accessible, responsive interfaces, optimize performance, and contribute to design systems.

Qualifications

• Bachelor's degree or equivalent experience in CS/engineering.
• 8+ years of frontend or web development experience.
• Expert knowledge of React.js, Next.js, TypeScript, ES6+, HTML5 and DOM.
• Tailwind CSS, mobile-first design, WCAG accessibility, and component-driven workflows.

Responsibilities

• Build responsive web apps using React 19, Next.js 16+, TypeScript, Tailwind CSS, and shadcn/ui.
• Architect modern Next.js patterns including App Router, Server/Client Components, SSR/SSG/ISR, caching, and middleware.
• Translate Figma designs into pixel-accurate UIs; contribute to enterprise design systems and document components via Storybook.
• Integrate RESTful APIs and manage state using TanStack and React Context.
• Maximize Core Web Vitals, code splitting, lazy loading, and bundle optimization across devices.
• Write clean code and develop tests (Jest, RTL, Cypress, Playwright); conduct debugging and code reviews.
• Utilize Git workflows and support CI/CD pipelines (Vercel, AWS, Azure).
• Mentor junior and mid-level developers to improve engineering maturity.

Skills

React.js

Next.js

TypeScript

ES6+

HTML5

CSS3

DOM manipulation

Education

Bachelor's degree in Computer Science or equivalent

Tools

Tailwind CSS

Radix

Material UI

Chakra UI

Turborepo

Nx

pnpm workspaces

Job description

Ethereum Technologies seeks a Senior Front End Developer to lead the design and development of scalable, enterprise web apps. You will own frontend architecture and collaborate with product, design, backend, QA, and architecture teams to deliver production-ready solutions.

You will work with React, Next.js, and TypeScript to craft accessible, responsive interfaces, optimize performance, and contribute to design systems.