$15,000.00 Fixed
We're hiring a JavaScript Developer to build dynamic, high-performance web interfaces that support our modern digital platform. You'll work on everything from interactive components and real-time UI updates to API integrations and optimized page performance.
This project focuses on developing core front-end features using vanilla JavaScript (ES6+), working with REST APIs, improving UI responsiveness, and ensuring cross-browser compatibility. You should be comfortable writing clean, structured code without relying heavily on frameworks — though experience with React, Vue, or Node.js is a plus.
You’ll collaborate with designers, backend developers, QA teams, and product managers to deliver a smooth, intuitive user experience. This project will run for 8–10 weeks, with potential extension based on performance.
If you're passionate about front-end logic, UI-level problem solving, and writing efficient JavaScript — this role is for you.
Key Responsibilities
Develop interactive UI components using vanilla JavaScript (ES6+).
Integrate RESTful APIs and handle asynchronous data with Fetch/Axios.
Optimize front-end performance (minification, lazy loading, caching).
Build reusable functions, utilities, and component patterns.
Implement form validation and secure data handling.
Ensure cross-browser compatibility and responsive design.
Debug UI issues and collaborate with QA for testing.
Work closely with designers to convert Figma mockups into real UI.
Use Git for version control and manage feature branches.
Write clean, well-commented, and maintainable code.
Implement DOM manipulation and event-driven workflows.
Apply accessibility standards (WCAG).
Optimize page loading speed using best practices.
Conduct unit testing using Jest (optional).
Provide documentation for components and modules.
Required Skills
2–4+ years of experience with JavaScript development.
Strong knowledge of ES6+ syntax and features.
Experience with DOM manipulation, events, timers, and animations.
Understanding of REST API integration.
Good knowledge of HTML5 & CSS3.
Familiarity with browser dev tools for debugging.
Knowledge of localStorage / sessionStorage.
Experience with basic build tools (Vite, Webpack optional).
Understanding of Promises, async/await, and error handling.
Knowledge of cross-browser compatibility techniques.
Experience working with Git and GitHub.
Strong attention to UI performance optimization.
Basic security knowledge (XSS, input sanitation).
Ability to write reusable modules and utility functions.
Good communication and teamwork skills.
Tools & Technologies
JavaScript ES6+
HTML5 / CSS3
Fetch API / Axios
Git & GitHub
Vite / Webpack (optional)
Browser DevTools
Figma / Adobe XD (for design handoff)
Jest (optional for testing)
Deliverables
Fully functional front-end modules using JavaScript.
Integrated API-based dynamic data components.
Optimized UI for speed and responsiveness.
Clean, commented source code.
Cross-browser compatible pages.
Two revision cycles with feedback updates.
15 days of post-launch support.
Budget Options
Hourly: $25 – $60/hour
Project-Based: $2,500 – $7,000
Monthly Retainer: $3,000 – $5,000
Timeline
Week 1: Setup + wireframe-to-UI conversion
Weeks 2–6: Component development + API integration
Week 7: Testing, optimization, and bug fixes
Week 8–10: Final revisions + deployment
Success Metrics
<1.2s average render speed
95%+ UI consistency with design
Zero critical UI bugs post-launch
Improved user engagement and interactions
Positive feedback from stakeholders
How to Apply
Please include:
3–5 JavaScript projects or GitHub repositories
A short summary of your approach to writing clean JS
Your preferred engagement type (hourly/project)
Shortlisted candidates will be contacted within 48 hours.
- Proposal: 0
- Less than 2 month
