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Frontend Developer

CEI

full-remoteseniorcontractfrontend Allentown, PA Today via LinkedIn
50 - 60 USD/daily

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Tags

ReactNext.jsJavaScriptTypeScriptTailwind CSSAccessibility (WCAG/ADA)Unit TestingEnd-to-End TestingWeb Performance OptimizationAgile

About the role

Role Overview

Build and maintain responsive, interactive web applications for a public-facing content site in a dynamic, agile environment. You’ll collaborate with a team to create reusable UI components, improve performance, and ensure accessibility standards are met.

Responsibilities

  • Develop responsive, interactive web applications using React and Next.js with modern JavaScript (ES6+)
  • Write clean, maintainable, well-documented code aligned with established standards and best practices
  • Optimize for speed and scalability (e.g., bundle optimization, lazy loading, code splitting)
  • Ensure consistent functionality and appearance across browsers and devices
  • Build reusable, modular UI components and contribute to a component library
  • Create and maintain unit, integration, and end-to-end tests
  • Ensure compliance with accessibility requirements (WCAG/ADA) so all users can use the site
  • Manage source control with Git (branching, PRs, code reviews)
  • Identify and fix front-end bugs and performance bottlenecks
  • Participate in code reviews and provide constructive feedback/mentorship
  • Attend and contribute to agile ceremonies (sprint planning, daily standups, retrospectives)
  • Stay current with evolving front-end technologies and industry best practices

Required Skills / Qualifications

  • Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience
  • 5+ years of front-end development with strong JavaScript fundamentals
  • Proficiency with React, HTML5, CSS3, and modern JavaScript (ES6+)
  • Experience with Next.js and server-side rendering concepts
  • Strong knowledge of responsive design and CSS frameworks (with Tailwind CSS preferred)
  • Experience with Git and collaborative development workflows
  • Understanding of web performance optimization and browser developer tools
  • Strong problem-solving, attention to detail, and communication skills

Nice-to-Haves

  • TypeScript
  • Testing frameworks: Jest, React Testing Library, Cypress
  • CSS preprocessors or CSS-in-JS (e.g., Sass, Less)
  • Headless CMS integration and JAMstack
  • SEO fundamentals and implementation
  • Accessibility standards and assistive technologies
  • Mobile-first development and PWAs
  • Familiarity with backend technologies / full-stack concepts
  • Portfolio demonstrating code quality, performance, and UX

About CEI

CEI is a technology partner that delivers solutions to help customers transform their business and achieve meaningful results. The company offers services spanning strategy, custom application development, and application management. Industry focus is on technology and digital transformation services.

Scraped 4/2/2026

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