Senior Full-Stack Engineer (React Native + React + Node.js)

Full Codebase Audit, App Recovery & Multi-Platform Redeployment (iOS / Android / Web) We are seeking a top-tier Senior Full-Stack Engineer to take ownership of an existing production-level application and lead a complete codebase audit, stabilization, update, and redeployment across: iOS App (React Native) Android App (React Native) Web Application (React JS) Backend APIs (Node.js) This is a high-responsibility, execution-critical engagement requiring strong engineering judgment, debugging capability, and production deployment experience. ⚙️ Core Responsibilities You will be expected to independently: Perform a full deep-dive audit of an existing codebase (frontend + backend) Identify architectural issues, bugs, performance bottlenecks, and technical debt Stabilize and refactor critical components where necessary Ensure full functionality across all platforms (iOS / Android / Web) Manage full release lifecycle for mobile applications: Apple App Store deployment Google Play Store deployment Ensure backend APIs (Node.js) are stable, secure, and properly integrated Coordinate updates across all platforms with zero breaking changes in production Deliver continuous daily progress updates 🧱 Technology Stack Mobile: React Native Web: React JS Backend: Node.js APIs: REST (and/or existing architecture) ⏳ Timeline Total duration: 1 Month (strict deadline) Structured execution plan: Week 1: iOS stabilization + update + deployment readiness Week 2: Android stabilization + update + deployment Week 3: Web application updates + mobile sync improvements Week 4: Final QA, bug fixing, performance tuning, release hardening 📊 Communication & Reporting Daily written progress report required (what was done / what is next / blockers) Clear communication on technical risks or blockers immediately Code-level transparency throughout the engagement ⚠️ Ownership & Legal Conditions Full responsibility for delivery quality during the engagement period Strict adherence to deadlines is required Upon completion, all source code, modifications, and deliverables become 100% exclusive intellectual property of the client The developer retains no rights to reuse, redistribute, or reference any part of the project 🧠 Ideal Candidate Profile We are specifically looking for someone who has: Strong production experience with React Native in real-world apps Experience deploying apps to both App Store and Google Play Strong Node.js backend experience in production systems Proven ability to work with existing/legacy codebases Excellent debugging and system recovery skills Experience handling full-stack ownership of live applications Strong discipline in communication and delivery under deadlines 🎯 What Makes This Role High-Level This is not a greenfield project. You will be working on an existing production system that requires engineering maturity, not experimentation. We are looking for someone who can: Understand systems quickly Fix what is broken without rewriting everything Make the product stable, scalable, and deployable again If you are a senior engineer who thrives in complex environments and can take full ownership of a multi-platform system, we would like to hear from you.