Senior Frontend Engineer
Summary
Freelancer Client is hiring: Senior Frontend Engineer.
Location: Remote
You’ll take full ownership of the client-side of our next product release, building a fast, responsive interface in React. The design team will hand over wireframes, high-fidelity mockups, and the occasional interactive prototype; your task is to turn each of them into polished, production-ready code.
What you'll do:
• Craft clean JSX, modern CSS, and well-structured state management that scales.
• Push performance—lazy-load, code-split, and fine-tune until Lighthouse is green across the board.
• Hunt down cross-browser quirks and squash them quickly.
• Consume RESTful endpoints from our Node-based API, shaping data for smooth UX.
• Commit early and often to a Git flow that keeps the whole team in sync.
• A working familiarity with smart-contract concepts and web3 libraries is a plus; some of our upcoming modules will surface blockchain data to users.
• Deliverables will be reviewed against:
• 1. Feature parity with provided designs on desktop, tablet, and mobile.
Skills: JavaScript, CSS, HTML, Node.js, Git, React.js, Blockchain, Web Development, Frontend Development, REST API
Budget: $25–$50 USD
Source: Freelancer Client via Remote / Online. Apply on the source website.
Original
You’ll take full ownership of the client-side of our next product release, building a fast, responsive interface in React. The design team will hand over wireframes, high-fidelity mockups, and the occasional interactive prototype; your task is to turn each of them into polished, production-ready code.
Day to day, you’ll:
• Craft clean JSX, modern CSS, and well-structured state management that scales.
• Push performance—lazy-load, code-split, and fine-tune until Lighthouse is green across the board.
• Hunt down cross-browser quirks and squash them quickly.
• Consume RESTful endpoints from our Node-based API, shaping data for smooth UX.
• Commit early and often to a Git flow that keeps the whole team in sync.
A working familiarity with smart-contract concepts and web3 libraries is a plus; some of our upcoming modules will surface blockchain data to users.
Deliverables will be reviewed against:
1. Feature parity with provided designs on desktop, tablet, and mobile.
2. No critical console errors or failing unit tests.
3. Consistent performance scores (90+ in Google Lighthouse) on a staging URL.
4. Merge-ready PRs with clear commit history and documentation.
If you’re a detail-oriented React engineer who enjoys squeezing every millisecond of speed out of a UI, I’d love to collaborate on this launch.
Location & Details
Apply on source →About this listing
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