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Overnight React Frontend Developer Jobs in Colorado

Instant Serve LLC

Application Developer

Denver, CO · On-site

$60 - $70/hr

NET 8 / 9 project with a React front-end. Location: Denver, CO (100% onsite) Start: 10/06/2025 End ... LINQ * Azure DevOps with GIT / TFSC or equivalent * Console Application Executables * Window ...

Anagh Technologies, Inc.

Front End React Developer

Denver, CO · On-site

$107K - $124K/yr

... a React developer with about two years of experience. Remote/Onsite: * If relo: * Can start 100% remote but would need to move to CO with a set timeline Top Skills: * 3+ years of front end ...

Cymertek

Front End GUI Developer / Software Engineer

Aurora, CO · On-site

$106K - $123K/yr

Front End GUI Developer / Software Engineer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly ... Familiarity with front-end frameworks (e.g., React, Angular, Vue) * Experience with version control ...

Marathon TS

Software Engineer

Colorado Springs, CO · On-site

Marathon TS is looking for a Software Engineer to support their efforts at TSA. The role involves ... Required : • 2+ years of React Frontend development • 2+ years of HTML/CSS • 2+ years of ...

Cymertek

React.js / Node.js Developer

Aurora, CO · On-site

SIMILAR CAREER TITLES Frontend Developer, Backend Developer, Full Stack Developer, JavaScript Developer, Web Developer, UI/UX Developer, MEAN Stack Developer, MERN Stack Developer, Software Engineer ...

CGI Inc.

Senior React Developer/Architect

Centennial, CO · On-site

$133K - $181K/yr

The ideal candidate brings deep front-end engineering expertise, strong architectural judgment, and ... React JavaScript * SASS * Storybook * Typescript * WebPack What you can expect from us: Together ...

Loft Orbital

Frontend Engineer

Golden, CO · On-site

As a Frontend Engineer, you will work on refining the UI of Cockpit, the satellite operations ... Required : • Strong proficiency in TypeScript / HTML / CSS • Experience with Vue or React • ...

Resource Label Group

Senior Front-End Engineer

Longmont, CO · On-site

$121K - $166K/yr

THE OPPORTUNITY We're looking for a Senior Front-End Engineer to take ownership of our front-end ... Deep proficiency with React, TypeScript, Node.js, and Tailwind, with the ability to design ...

AgentSync, Inc.

Senior Frontend Engineer

Denver, CO · On-site

$160K - $185K/yr

Build high-quality, accessible, performant features in our React app across multiple product areas * Help shape the path forward for our frontend architecture * Build and extend a shared component ...

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Senior React Frontend Architect

Eitacies Inc

Englewood, CO • On-site

$60/hr

Full-time

Re-posted 17 days ago

Job description

Senior React /Frontend Architect 
Denver, CO - Onsite  5 days Inoffice
About Role: (React, TypeScript, Node.js)
We need someone who can initiate and architect for our project from scratch, including:
  • Setting up a brand-new frontend architecture
  • CDN strategy and traffic pattern considerations
  • SEO improvements and best practices
  • Integration of AEM with React applications
  • SSR (Server-Side Rendering) knowledge
  • Performance optimization strategies
Overall, we are looking for someone with strong frontend architectural expertise.
Must Have Skills:
  • React
  • Material UI
  • TypeScript
  • Storybook
  • SASS
  • AEM Cloud with SPA Editor experience

Job Description:
We are looking for a Senior React Architect with expertise in React, Material UI, TypeScript, and Node.js to help build and optimize high performance web applications. The ideal candidate has a strong foundation in front-end development, best practices, advanced TypeScript skills, and experience with modern JavaScript build tools like Webpack. Experience in Node.js library packaging, design systems, and optimizing front-end performance is highly desirable.
Responsibilities:
  • Develop and optimize React components, ensuring reusability, maintainability, and performance.
  • Architect and maintain a scalable React application structure, following best practices for long-term sustainability.
  • Build and package Node.js libraries to be reusable across multiple projects.
  • Write clean, efficient, and scalable TypeScript code, ensuring strong type safety and maintainability.
  • Build UI components using Material UI, ensuring consistency with design guidelines.
  • Integrate and consume RESTful APIs or GraphQL endpoints efficiently.
  • Implement and manage front-end testing using frameworks such as Jest, Cypress, or React Testing Library.
  • Optimize Webpack configurations for faster builds, better bundling, and improved performance.
  • Ensure adherence to best practices for performance optimization, accessibility, and security.
  • Collaborate closely with backend teams to integrate APIs and optimize data fetching strategies.
  • Debug and resolve complex issues across the front-end stack, including state management and caching strategies.
  • Stay updated with the latest trends in React, TypeScript, and front-end development to deliver best-in-class solutions.
  • Participate in code reviews, mentor junior developers, and contribute to technical discussions.
Qualifications:
  • 13+ years of experience in front-end development, with at least 8+ years of hands-on React experience.
  • Advanced TypeScript skills, with a focus on type safety and best practices.
  • Strong experience with Material UI for building accessible, consistent UIs.
  • Solid understanding of Node.js and experience with Node.js library packaging.
  • Hands-on experience with front-end test frameworks (Jest, Cypress, React Testing Library).
  • Deep understanding of Webpack, including performance optimizations, tree shaking, and bundle splitting.
  • Familiarity with state management solutions such as Redux, Zustand, or Recoil.
  • Experience with performance tuning, lazy loading, and optimizing Lighthouse scores.
  • Familiarity with CI/CD pipelines and DevOps practices for front-end deployments.
  • Strong knowledge of RESTful APIs and GraphQL, with experience in efficient data fetching strategies.
  • Excellent problem-solving skills and the ability to debug complex front-end issues.
  • Strong communication skills, with the ability to collaborate effectively with designers, backend developers, and stakeholders.