Senior Front End Developer

Ethereum Technologies; 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

Job Title: Senior Front End Developer
Location: Plano, TX
Duration: 12 Months + Extension
Bill Rate: $86/hour (C2C)
Job Type: W-2, 1099, C2C
Client: To Be Discussed Later
Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary:

We are seeking a Senior Front End Developer with extensive hands on experience in React, Next.js, and TypeScript. You will build scalable, responsive, accessible, and high performance enterprise web applications. This role requires technical ownership and close collaboration with product, design, backend, QA, and architecture teams to deliver production ready front end solutions.

Responsibilities:

• Development: Build responsive web apps using React 19, Next.js 16+, TypeScript, Tailwind CSS, and shadcn/ui.
• Architecture: Utilize modern Next.js patterns including App Router, Server/Client Components, SSR/SSG/ISR, caching, and middleware.
• UI/UX: Translate Figma designs into pixel accurate user interfaces; contribute to enterprise design systems and document components via Storybook.
• Data & State: Integrate RESTful APIs with robust asynchronous handling; manage state using TanStack and React Context.
• Optimization: Maximize Core Web Vitals, code splitting, lazy loading, and bundle performance across devices.
• Quality & Testing: Write clean code; develop tests (Jest, React Testing Library, Cypress, Playwright); perform debugging and code reviews.
• DevOps: Utilize Git workflows and support CI/CD pipelines (Vercel, AWS, Azure).
• Leadership: Stay updated on industry trends; mentor junior and mid-level developers to improve engineering maturity.

Qualifications:

• Education: Bachelors degree in Computer Science, Engineering, or equivalent experience.
• Experience: 8+ years of professional front end or web development experience.
• Core Skills: Expert knowledge of React.js (hooks, context, lifecycle), Next.js, TypeScript, ES6+, HTML5, CSS3, and DOM manipulation.
• Styling & Systems: Deep experience with Tailwind CSS, mobile first design, web accessibility (WCAG), and component driven workflows.

Preferred Qualifications

• Next.js Advanced: Expertise in App Router, React Server Components, route handlers, revalidation, and SEO optimization.
• Tools & Libraries: Experience with UI toolkits (Radix, Material UI, Chakra) and monorepos (Turborepo, Nx, pnpm workspaces).
• Security & Infrastructure: Familiarity with authentication (OAuth, JWT), cloud platforms, and Agile/Scrum delivery environments.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.