> Markdown version of [/jobs/ext/4350334-senior-front-end-developer-react-next-js](https://www.wearedevelopers.com/jobs/ext/4350334-senior-front-end-developer-react-next-js). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Front-End Developer (React / Next.js) - **Company:** CEI LLC - **Location:** Crafton, PA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Amazon Web Services, Microsoft Azure, Code Review, Continuous Integration, Document Management Systems, OAuth, Azure Active Directory, Next.js, Web Application Security, TypeScript, Web Content Accessibility Guidelines, Web Applications, Tailwind, ReactJS, Cypress (Programming Language), Git, Material UI, Playwright, Graphql, Front End Software Development - **Published:** October 23, 2026 - **Apply:** https://www.thejobnetwork.com/job/d8be131e-8c71-479d-b999-f163695413a1/senior-frontend-developer-react-nextjs ## About the Role Senior front-end engineer with deep React and Next.js expertise to lead development of enterprise web apps for a law firm or legal tech environment. 7-12+ years of front-end experience, with strong hands-on React, Next.js, TypeScript, and architecture skills. Legal or professional services experience is a plus, not required., * 7+ years front-end development, 5+ years React, 3+ years Next.js * Expert TypeScript/JavaScript * REST/GraphQL API integration * Testing (Jest, Cypress/Playwright), Git, CI/CD * SSO/OAuth and web security fundamentals * Proven technical leadership and mentoring Nice-to-Haves * Legal domain experience (matter management, document management, eDiscovery, client portals, billing) * Azure/AWS, Entra ID/Azure AD * Design systems, Storybook, Tailwind/Material UI * WCAG/ADA accessibility work Role: Own architecture decisions, lead code reviews, mentor developers, and turn complex legal/business requirements into secure, scalable UI. Bachelor's in CS or related field preferred (or equivalent experience)