Senior Full Stack MERN Developer | Custom Web Applications | API Integrations | AI Ready

Note : 50$ is just for demo phase Job Descriptions: We are looking for an experienced Full Stack MERN Developer to join our team for long-term collaboration. You should be comfortable building scalable web applications from scratch, modernizing existing systems, integrating third-party APIs, and solving complex technical challenges. This role requires someone who can take ownership of both frontend and backend development while maintaining clean, scalable, and well-documented code. Responsibilities * Build custom web applications using the MERN stack * Develop responsive, high-performance websites and dashboards * Redesign and modernize existing websites and platforms * Convert Figma, Adobe XD, or UI/UX designs into pixel-perfect applications * Develop REST APIs and GraphQL APIs * Integrate third-party APIs and SaaS platforms * Design scalable backend architecture * Optimize database performance and queries * Implement authentication, authorization, and role-based access control * Build admin panels, CRM systems, SaaS platforms, and internal business tools * Optimize website speed, SEO, Core Web Vitals, and performance * Deploy applications to cloud infrastructure * Debug production issues and improve system stability * Write clean, reusable, maintainable code * Collaborate using Git and Agile workflows Required Skills Frontend * React.js * Next.js * JavaScript (ES6+) * TypeScript * Redux / Redux Toolkit * Context API * HTML5 * CSS3 * Tailwind CSS * Bootstrap * Material UI * Chakra UI * Responsive Design * Framer Motion * React Query * Axios Backend * Node.js * Express.js * NestJS (preferred) * REST API Development * GraphQL * JWT Authentication * OAuth * WebSockets * Socket.IO * Microservices Architecture Database * MongoDB * Mongoose * PostgreSQL * MySQL * Redis API Integrations * Stripe * PayPal * Twilio * SendGrid * OpenAI API * Claude API * Google APIs * Google Maps API * Firebase * AWS Services * Azure APIs * HubSpot API * Zoho API * Salesforce API * Shopify API * WooCommerce API * WordPress REST API * QuickBooks API * Slack API * Discord API * Telegram Bot API * WhatsApp Business API * Zoom API * Calendly API * Make.com * Zapier * n8n DevOps & Deployment * Docker * Git * GitHub * GitLab * CI/CD * Nginx * PM2 * Linux * AWS * DigitalOcean * Vercel * Netlify * Cloudflare * VPS Deployment Additional Experience (Preferred) * AI Integrations * OpenAI Agents * LLM Applications * LangChain * RAG Systems * Vector Databases * Pinecone * ChromaDB * Automation Workflows * CRM Development * SaaS Development * ERP Systems * Marketplace Development * Multi-Tenant Applications * Payment Gateways * Real-time Applications * Analytics Dashboards * Reporting Systems * Booking Systems * E-commerce Platforms * Custom CMS Development Nice to Have * Python * FastAPI * Django * React Native * Electron * Unit Testing * Playwright * Cypress * Jest * Docker Compose * Kubernetes * Elasticsearch What We Expect * Excellent communication * Strong problem-solving ability * Attention to detail * Ability to work independently * Daily progress updates * Clean Git commits * Well-documented code * Long-term mindset Please include examples of similar projects you've built, GitHub (if available), and explain your role in those projects. Budget : 5000 USD