Full-Stack Node.js & React.js Developer Needed (With 12-Mo Bug Warranty)

Project Overview:
We are looking for an experienced Full-Stack Developer (React.js & Node.js) to build a responsive, high-performance web application.

The complete UI/UX designs will be provided to the selected freelancer. Your primary responsibility will be translating these designs into clean, scalable code, implementing backend architecture, and ensuring end-to-end functionality.

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Key Responsibilities & Scope:
- Frontend: Implement pixel-perfect, responsive layouts across mobile, tablet, and desktop using React.js.
- Backend: Develop scalable APIs, logic, and database schemas using Node.js.
- Performance & Security: Implement industry-standard security safeguards (protection against OWASP top 10, sanitization, authentication) and optimize core web vitals/page loading speeds.
- Quality Assurance: Thorough unit and integration testing to ensure zero critical bugs prior to deployment.
- Handover: Complete transfer of all source code, documentation, credentials, and IP rights upon project completion.

Support & Maintenance Terms (Mandatory):
- 12 Months Post-Delivery Support: You must provide 12 months of technical maintenance covering bug fixes and issue resolution for the delivered scope at no extra charge.
- Scope Boundary: Any brand-new feature development or major design alterations requested after handover will be scoped and paid separately.

Requirements:
- Proven experience with commercial Node.js and React.js web applications.
- Strong attention to detail regarding UI/UX implementation.
- Availability for clear, daily/weekly progress check-ins.

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How to Apply:
1. Start your proposal with the phrase: "STACK-VERIFIED" so we know you read the complete scope. Proposals without this will be rejected.
2. Share links to 1–3 live web apps you personally built using React.js and Node.js.
3. Confirm your acceptance of the 12-month post-handover bug support clause.
4. Provide your realistic timeline estimate.