Frontend Developer for Web Application

Posted 12 hours ago

Worldwide

Summary

About the Role We are looking for an experienced frontend developer to join us on a contract basis to help build our web-based data operations platform. Our product combines data migration and ETL capabilities with data governance, serving enterprise customers who depend on it for reliable, compliant data workflows. You will build and refine user-facing features and work closely with our team to deliver a polished, intuitive, high-performing product. Responsibilities  - Develop and maintain frontend features for our data operations platform  - Build responsive, performant, and accessible UI components using React and TypeScript  - Integrate frontend components with REST APIs  - Write clean, well-structured code with appropriate unit test coverage  - Troubleshoot and resolve UI bugs and performance issues  - Collaborate with the team through Git-based workflows and code reviews Required Qualifications  - Proven experience as a frontend developer building production web applications  - Strong proficiency with React and TypeScript  - Expert-level HTML5, CSS3, and modern JavaScript (ES6+)  - Experience consuming and integrating REST APIs  - Experience with state management libraries (e.g., Redux, Zustand, or React Context)  - Familiarity with modern build tools and bundlers (e.g., Vite, Webpack)  - Experience with frontend testing frameworks (e.g., Jest, React Testing Library, Cypress, or Playwright)  - Solid working knowledge of Git and collaborative development workflows  - Understanding of responsive design, cross-browser compatibility, and web performance optimization Nice to Have  - Experience with ETL or data integration tools  - Background developing SaaS and enterprise applications  - UI/UX design experience or a strong eye for usability and design  - Familiarity with CSS frameworks or component libraries (e.g., Tailwind CSS, Material UI)  - Exposure to CI/CD pipelines and accessibility standards (WCAG)

  • Less than 30 hrs/week
    Hourly
  • 6+ months
    Duration
  • Intermediate
    Experience Level
  • $15.00

    -

    $30.00

    Hourly
  • Remote Job
  • Ongoing project
    Project Type
Skills and Expertise
Mandatory skills
JavaScript
HTML5
TypeScript
Activity on this job
  • Proposals:50+
  • Last viewed by client:12 hours ago
  • Interviewing:
    0
  • Invites sent:
    0
  • Unanswered invites:
    0
About the client
Member since Aug 21, 2014
  • United States
    Haddon Heights12:12 PM
  • $135K total spent
    70 hires, 1 active
  • 3,392 hours

Explore similar jobs on Upwork

Website developerHourly‐ Posted 3 weeks ago
Shopify
Laravel
Webflow
WordPress
PHP
Web Design
Shopify Development
Web Development
Kajabi
Wix
Squarespace
Bubble.io
HubSpot
BigCommerce
Weebly
Landing Page
Technical SEO
Ecommerce Website Development
Framer
Responsive Design
Transfer HTML to InDesignFixed-price‐ Posted 3 weeks ago
HTML
Adobe Photoshop
Adobe InDesign
Graphic Design

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo