🚀 The Top 3% of Node.js, AI & Backend Engineering Talent on Upwork 🤖 AI-Native Backend Development for Modern SaaS & Enterprise Products ⚡ 10+ Years of Professional Experience ⚡ AI Agents, Chatbots & LLM Integrations Delivered ⚡ Modern AI Stack: Cursor, Claude Code, GPT-4, Claude Sonnet & Copilot ⚡ 30–40% Faster Delivery Through AI-Assisted Engineering ⚡ Trusted by Startups, SaaS Companies & Enterprise Clients Welcome! 👋 I'm a Senior Node.js Developer, Node.js Backend Developer specializing in scalable, secure, and high-performance backend systems. For 10+ years, I've helped companies architect, build, optimize, and modernize SaaS platforms, enterprise applications, fintech products, healthcare solutions, CRM/ERP systems, and marketplace platforms. From Startup MVPs to enterprise ecosystems, I deliver software designed to scale with business growth. 🔥 WHAT YOU GET ✔ High-Performance Backend systems engineered to process millions of requests with 99.99% uptime. ✔ Production-ready features delivered 30–40% faster using AI-assisted development and AI-generated code workflows. ✔ End-to-End Development—from MVP Development and Product Development to long-term Backend Support and Application Maintenance. ✔ A Dedicated Developer and Technical Lead focused on measurable business outcomes. 🏆 RESULTS & IMPACT ✔ Delivered SaaS Development initiatives, ecommerce solutions, enterprise applications, and real-time systems serving thousands of users worldwide. ✔ Improved API performance by up to 50% through Backend Optimization, Redis caching, and Database Architecture improvements. ✔ Accelerated release cycles by 30–40% using AI-native engineering practices without sacrificing maintainability. ✔ Built Scalable Backend infrastructures capable of supporting millions of transactions and sustained business growth. 🚚 WHERE I DELIVER As a Senior Node.js Developer and Backend Engineer, I build REST API and GraphQL API ecosystems using Node.js, Express.js, NestJS, Fastify, Koa.js, JavaScript, TypeScript, WebSocket, Socket, Microservices, and Event-Driven Architecture. As an API Developer and REST API Developer, I deliver API Development, API Integration, Third-Party API Integration, Authentication, Authorization, JWT, OAuth, SSO, Swagger, OpenAPI, and API Documentation for secure enterprise environments. As a Full Stack Developer, I create Web Applications, Ecommerce Websites, Website Redesign projects, Browser Extensions, Google Chrome Extensions, Desktop Applications, Platform Plugins, Headless CMS, CMS Integration, Odoo Development solutions, and End-to-End Development initiatives. As an AI engineering partner, I help companies implement AI Development through AI Agent Development, AI App Development, AI Bots, Chatbots, ChatGPT Integration, OpenAI API integrations, OpenAI Codex Prompt workflows, AI Model Integration, and AI-generated code strategies that improve team productivity by 30–40%. 💳 INTEGRATIONS & AUTOMATION ✔ 10+ years integrating Stripe Integration, PayPal Integration, Twilio Integration, SendGrid, shipping providers, Payment Integration services, Webhooks, and System Integration workflows. ✔ Built asynchronous architectures using RabbitMQ, Kafka, BullMQ, Queue Management, and Message Queues to improve throughput and reliability. ✔ Automated Data Processing and ETL pipelines that reduce manual effort and support real-time decision-making. ⚒️ TECHNOLOGY ECOSYSTEM ✔ 10+ years of Backend Development using Node.js, Express.js, NestJS, Fastify, JavaScript, TypeScript, Python, PHP, Java, Kotlin, Scala, Ruby, C#, ASP.NET, Django, and modern Software Architecture practices. ✔ 8+ years delivering Full-Stack Development with React, Angular, AngularJS, Vue.js, HTML5, CSS3, Bootstrap, jQuery, Google Analytics, Adobe Photoshop, and Website Optimization strategies. ✔ 10+ years designing Database Development and Database Architecture solutions using MongoDB, PostgreSQL, MySQL, Redis, DynamoDB, Firebase, Supabase, Prisma, TypeORM, Sequelize, Mongoose, Microsoft SQL Server, MariaDB, Oracle, Neo4j, and Azure Cosmos DB. ✔ 7+ years deploying cloud-native applications with Amazon Web Services (AWS), Lambda, EC2, S3, Azure, Google Cloud Platform, Docker, Kubernetes, DevOps, Serverless Architecture, GitHub Actions, Jenkins, Git, and CI/CD pipelines. 🤖 AI-ASSISTED ENGINEERING STACK ✔ 5+ years leveraging Cursor, GitHub Copilot, Claude Code, OpenAI ChatGPT, GPT-4, and GPT-4o to accelerate prototyping, debugging, testing, and implementation by 30–40%. ✔ While AI accelerates delivery, critical architecture decisions, scalability planning, and Technical Lead responsibilities remain grounded in 10+ years of engineering experience. 🤝 LET'S BUILD SOMETHING GREAT Whether you need a Node.js Developer, Node.js Backend Developer, Backend Engineer, Full-Stack Developer, API specialist, AI integration partner or Technical Lead I'd be happy to discuss your architecture, roadmap, and next steps.

Senior Node.js, React & React Native developer with 5+ years of experience building scalable APIs, web/mobile apps, and real-time systems. Strong background in authentication, payments, Firebase, AWS, and AI integrations for SaaS platforms. Backend-focused engineer with solid frontend expertise—React.js for SPAs and React Native for cross-platform mobile applications—delivering clean, maintainable, and production-ready code. Tech stack highlights: - Node.js (MEAN & MERN stacks) - React.js & React Native - GraphQL & RESTful APIs - MongoDB, MySQL, PostgreSQL - TypeORM, Sequelize, Prisma,... - AWS services I’d be excited to apply my skills to your project and deliver meaningful value to your team.

I am a dedicated Node.js backend developer with strong expertise in designing and implementing scalable, secure, and high-performance web applications. Over the years, I have built and enhanced numerous projects from scratch, applying modern architecture design patterns, optimizing code, and improving performance to meet business goals and user expectations. My core skills revolve around JavaScript, React, Node.js, PHP, and CSS, allowing me to deliver complete end-to-end solutions. Whether it’s building an efficient backend with Node.js or integrating a powerful React frontend, I ensure seamless connectivity and a smooth user experience. 🔑 My Expertise Backend Development with Node.js Proficient in Node.js for building scalable APIs and server-side logic. Skilled in Express.js and modern frameworks for RESTful API and GraphQL development. Optimization of backend performance, code refactoring, and reducing latency. Designing microservices and serverless architectures with AWS Lambda and Docker. Frontend Integration with React & JavaScript Development of user-friendly interfaces with React and JavaScript. Implementing responsive layouts with CSS and best UI/UX practices. Creating reusable React components and connecting them to robust backend APIs. Supporting React Native applications with optimized backend services. Database Design & Management Skilled in SQL and NoSQL databases, ensuring scalability and high availability. Schema design, query optimization, and integration with backend APIs. Experience with MongoDB, PostgreSQL, and Firebase for real-time data processing. Full-stack Capabilities Combining JavaScript, React, PHP, CSS, and Node.js into complete fullstack solutions. Integrating backend services with modern frontends to deliver smooth user flows. Building SaaS platforms, e-commerce solutions, CRM/ERP systems, and custom dashboards. 🏆 What Makes Me Different End-to-End Ownership – I can take your idea from concept to deployment. From designing the Node.js backend to integrating with React frontends, I cover every layer of the stack. Performance & Scalability – I focus on building solutions that are not just functional but also optimized for growth, ensuring low latency and high throughput. Proven Communication & Leadership Skills – I collaborate closely with clients, clearly explain technical solutions, and lead projects within tight deadlines. Continuous Learning – I constantly upgrade my knowledge, especially in blockchain technology, AI-driven development, and cloud-native architectures. 📂 Types of Projects I Work On Custom Backend Development – RESTful APIs, GraphQL endpoints, and high-performance server logic in Node.js. React Web Applications – Clean, modern, and responsive frontends powered by React and JavaScript. SaaS Platforms – Scalable solutions combining Node.js backend with interactive React dashboards. E-commerce Solutions – Fullstack development with JavaScript, PHP, Node.js, and React, including payments and inventory management. Blockchain Integrations – Working with smart contracts, Web3 APIs, and decentralized identity systems. Legacy System Modernization – Migrating outdated platforms into modern JavaScript + React + Node.js stacks. 🛠️ Technical Skills Languages: JavaScript, TypeScript, PHP Frontend: React, React Native, HTML5, CSS3 Backend: Node.js, Express.js, Laravel Databases: MongoDB, PostgreSQL, MySQL, Firebase DevOps: AWS Lambda, Docker, Kubernetes APIs: RESTful, GraphQL, WebSockets Other: Git, Agile Project Management, CI/CD 🌍 Why Clients Choose Me Fullstack Expertise: I bring together JavaScript, React, Node.js, PHP, and CSS into unified, robust systems. Proven Experience: I have successfully delivered projects for fintech, SaaS, blockchain, e-commerce, and enterprise businesses. Client-Centric Approach: I take time to understand your business needs and translate them into scalable technical solutions. On-Time Delivery: Recognized for completing projects under tight deadlines without sacrificing quality. 📞 Let’s Work Together If you are looking for a Node.js backend developer who also has strong skills in React, JavaScript, CSS, and PHP, I’d love to collaborate with you. My focus is always on building solutions that are secure, scalable, and user-friendly. Whether you need a new platform built from scratch, a backend optimized for performance, or a full-stack application that combines powerful APIs with intuitive frontends, I am here to help. Let’s connect and discuss how I can bring your project to life! 🔑 Keywords included often & naturally: Node.js, React, JavaScript, CSS, PHP, backend developer, react, javascript, backend development.

Hi, I’m Danny — a full-stack developer with 10+ years of experience, specializing in Node.js, TypeScript, and scalable web systems. That is what I have been doing so far and, recent a couple of years, I now focus on building AI-powered applications by combining solid backend architecture with modern tools like OpenAI, LangChain.js, and vector databases (Qdrant, Supabase). I don’t just build chatbots — I build AI agents that use tools, remember context, and automate real business workflows. With AI-assisted development tools like Copilot and Cursor.dev, I move 3–5× faster while still writing clean, modular code that’s easy to test and extend. Are you looking for a NodeJS expert? Yes! - 10+ years of exp in NodeJS/Typescript - REST-style and GraphQL APIs for mobile/web apps - Scripts to automate business flows I am committed to Drawing use-case diagrams closely connected with actual clients. Pulling robust db schema, architecturing the whole system. Composing tests cases for each use-case. Write clean, modular, and maintainable code. Maintaining and extending system module by module. Strong communication skills and ability to work in a fast-paced team environment. Capable of designing complex systems from ground up. You can rely on me with AI argmented system Backend - Express/NestJS Frontend - VueJs and React, React Native, ElectronJS DB - MongoDB, PostgreSQL, MySQL Deployment - AWS/Heroku/Azure/GCP I would be happy to add value to your team, product and company for great success.

𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐏𝐲𝐭𝐡𝐨𝐧 | 𝐒𝐚𝐚𝐒 & 𝐀𝐈 𝐄𝐱𝐩𝐞𝐫𝐭 Most products don't fail because the idea was wrong. They fail because the app is slow, breaks under real users, or costs too much to keep running. That's exactly the part I fix. I'm Muhammad Yasir, a Senior Full Stack Developer with 10+ years of experience building scalable, high-performance SaaS platforms, AI-powered apps, and web systems used by thousands of people. I've led development teams and worked with clients across IT, healthcare, education, SaaS, and AI, turning rough ideas into production-ready products that are fast, secure, and built to grow. You won't just get code. You'll get a solution that actually moves your business forward. 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐃𝐨 𝐅𝐨𝐫 𝐘𝐨𝐮 - Build full-stack SaaS platforms from scratch - Develop scalable backend systems (Node.js / Python) - Create modern, responsive UIs with React & Next.js - Build cross-platform mobile apps (React Native) - Integrate AI features, chatbots, and automation (OpenAI, Claude, and other LLMs) - Design clean REST APIs & database architecture - Optimize app performance, speed, and scalability - Deploy to the cloud (AWS, Firebase, Vercel, Docker) 𝐌𝐲 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡 I focus on: - Clean, maintainable code - Scalable, future-proof architecture - Real performance optimization - Smooth, intuitive user experience - Clear communication from start to finish 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐈'𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 - Built and scaled SaaS platforms handling thousands of active users - Improved app performance (LCP/TTI) by 2–3x - Increased client conversion rates by 25–35% - Reduced development and infrastructure costs by 30–40% 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Next.js, TypeScript, HTML5, CSS3, Tailwind CSS 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, Python (Django / Flask) 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: JavaScript (ES6+), TypeScript, Python, PHP 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, PostgreSQL, MySQL, Firebase 𝐂𝐥𝐨𝐮𝐝 & 𝐓𝐨𝐨𝐥𝐬: AWS, Firebase, Vercel, Docker, Git, CI/CD 𝐂𝐌𝐒 & 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞: WordPress, Shopify, Laravel 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 - Fast, clear communication, no guesswork - Reliable delivery with no missed deadlines - Scalable solutions built to last - Detail-oriented, business-focused development - Strong problem-solving from concept to launch - Long-term support after delivery 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐆𝐫𝐞𝐚𝐭 Whether you want to build something new, fix a stuck project, or scale what you already have, I'm ready to help. 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭'𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, Python Developer, Web Developer, API Developer, SaaS Developer, AI Developer, Chatbot Development, Automation, AWS, Firebase, Docker, MongoDB, PostgreSQL, Scalable Apps, MVP Development

Senior Node.js Developer. Over 10 years building production Node.js, NestJS, and TypeScript backends end-to-end. Full-stack ownership across React, Angular, and the messy migrations between them. EdTech / healthcare: Ionic + web for education; HIPAA-oriented SaaS backend work. Mobile scale: backend optimization for a fitness product with 10M+ downloads and heavy transaction load. Angular: long-term products, migrations, enterprise UI, maintainable modules. Strong proof on large Angular codebases when that is the job. AI integration where it earns its keep: OpenAI / Gemini for document automation and workflow APIs. What I deliver: - Production Node.js + NestJS backends, TypeScript end-to-end - Express services, microservices architecture, REST and GraphQL APIs - Backend optimization at mobile-app scale (10M+ downloads case) - Angular front-ends and migrations when the project needs full-stack ownership - AI integration where it serves the product Tech stack: Node.js, NestJS, TypeScript, Express, Angular, React, MongoDB, PostgreSQL, REST/GraphQL, Firebase, Git. Senior Node.js Developer, Node.js Developer, NestJS Developer, Backend Developer, TypeScript Developer, Angular Developer, Full Stack Developer, Microservices Developer, Backend Architect.

You focus on growth. I’ll focus on building the product right. Senior FullStack Developer | 5+ Years of Experience creating and maintaining React/NodeJS apps. Hi, I’m Mohammed 👋 — a Full-Stack Developer focused on building modern web applications with React, Next.js, Firebase, and Node.js. I create fast, scalable, and polished web applications that perform reliably and feel intuitive to users. From rebuilding outdated systems to launching production-ready platforms, I’ve spent the last 5+ years turning ideas into products that deliver real impact. Clients often bring me in when things get messy—tight deadlines, failing systems, or products that don’t quite FEEL polished. I get things back on track with clean code, smooth UI, and scalable architecture. Here’s what they say: ✅ “Above & Beyond!” – SEO fixes with Vercel ✅ “Faithfully implemented the designs + proactive solutions.” – Research Portal ✅ “Transformed our codebase into something we’re proud of.” – Email Marketing Platform ### How I Can Help You: → Ship Faster – Clean, scalable code that helps you launch without delays or rewrites. → Polish Your Product – UI that looks great and feels right—your users will notice. → Future-Proof Your Stack – I build with performance, SEO, and long-term growth in mind. → Fix the Unfixable – Legacy code? Inconsistent UX? Tight deadlines? I’ve been the “save the day” dev more than once. ### Technical Toolkit: * Frontend: Next.js (App/Pages Router), React.js, TypeScript, Tailwind CSS * Backend: Node.js, REST APIs, Authentication flows (NextAuth, Clerk) * Database & Cloud: PostgreSQL, MySQL, MongoDB, Firebase, Supabase * UI Libraries: MUI, Ant Design, Framer Motion * Deployment: Vercel, Docker, AWS Communication: Multilingual (English, Arabic, French) with a collaborative, solutions-first mindset. If you're working with React, Next.js, or Node.js, let’s skip the technical debt and build it right the first time. Message me with your Figma file or current codebase, and let’s discuss how to hit your next milestone. Best, Mohammed

I provide a Node.js Backend Developer team that ships production-grade SaaS, APIs and platforms. 11,000+ hours worked, 50+ Node.js Backend Developer projects delivered, 100% Job Success Score, Top Rated Plus. As CEO I scope and own every Node.js Backend Developer engagement we sign. I study the brief, run discovery with founders, match the right engineers and stay accountable for delivery. My team owns the code - I never touch it. So when a brief lands for a Backend Engineer, an API Developer or a full stack software engineer, I scope it and the team builds it. Why hire my team: - 20+ years of Node.js Backend Developer, Full Stack Developer and SaaS Developer delivery - 200+ Node.js Backend Developer and SaaS Developer projects shipped - Long-term clients on retainers (3 - 10+ years) Our Node.js Backend Developer team designs services, REST and GraphQL APIs, queues and event pipelines that hold up under real production load. A NestJS Developer on the team treats Node as a serious production runtime and owns the heavy backend modules. Typical engagements: multi-tenant SaaS APIs, real-time platforms, billing flows, data pipelines, AI-backed services. Stack: Node.js, NestJS, ExpressJS, TypeScript, PostgreSQL, Redis, Elasticsearch, AWS, GCP, Docker, Kubernetes. Our Full Stack Developer team owns systems end-to-end - one team handling Node.js services, React frontends, data models and infra. A React Node pairing is our default shape - a React Node frontend on a NestJS Developer backend, with a nextjs developer on SEO-critical pages. We replace fragmented setups where a website developer, web developer and front end specialist were stitched together. Adjacent angles I present daily: full stack developer saas for B2B platforms, python full stack developer pairings for data and AI, full stack developer ai integrations, full stack developer react teams for SaaS dashboards, full stack developer shopify extensions, full stack web developer rebuilds of legacy SPAs, full stack ai saas developer engagements where LLM features must ship at production standard. Our SaaS Developer team helps founders ship multi-tenant SaaS and B2B platforms. A SaaS Developer engagement covers auth and RBAC, Stripe billing, observability, anti-abuse and event tracking the saas marketing team can use. The team has shipped a webflow developer saas pairing, a b2b saas booking system developer engagement, a ui ux designer saas pipeline, a saas explainer video flow in onboarding and a saas sales console wired into the backend. On the API side a dedicated API Developer track owns contracts and versioning. A REST API Developer designs the REST API Developer surface - resources, pagination, idempotency, webhooks - and the API Developer keeps SDKs and docs honest. A Backend Engineer owns the data layer; a second Backend Engineer covers queues and workers so the API never blocks on jobs. Cross-language coverage. A python developer track owns scraping, ETL and AI workflows. python nodejs migrations land here when teams consolidate dual stacks. flutter node.js and vue.js node.js setups join the core when mobile or admin SPAs need a reactive layer. A react developer pairing handles SaaS dashboards on the API. A wordpress developer or shopify developer hand-off covers CMS migrations. A mobile app developer pairing extends the SaaS into iOS and Android. Clients hire me when they need: - a Node.js Backend Developer team that owns architecture, APIs and scaling - a back end developer node.js bench for high-traffic SaaS - a Full Stack Developer team replacing 3 - 5 contractors with one coherent system - a SaaS Developer team fluent in multi-tenancy, auth, billing and RBAC - an API Developer and Backend Engineer pair for a clean, versioned REST API Developer surface - a full stack software developer practice with CEO-level discipline on roadmaps - a website developer hand-off backed by the team Recent work my team shipped: - Cybersecurity SaaS. Node.js, NestJS, PostgreSQL, Redis on GCP + Kubernetes. 170M+ req/week, 500 RPS peaks, 1M+ MAU. - Device Verification SaaS. Single backend powering web, Telegram bot and Developer API. 4K+ DAU, 1M+ checks, 80%+ via API. - Clinic Enterprise platform. React, Next.js, Laravel, Node.js, Redis, AWS. REST API, queues, RBAC, 1C and lab integrations. MVP in 4 months for 500 patients/day, 500K records. - E-commerce Data Pipeline SaaS. 50M+ products, per-partner parsers, dedup. Cloud cost cut ~9x at sub-second search across 300 - 500K DAU. - Multi-currency Voting SaaS. Wallets, Stripe top-ups, real-time vote locking over WebSockets. 2M+ users in 10 countries, $2.5M+ revenue. Reliable SaaS comes from deliberate design - that's what my Node.js Backend Developer, Full Stack Developer and SaaS Developer team focuses on. Need a Node.js Backend Developer team, a Full Stack Developer team or a SaaS Developer partner that delivers on time and stays long-term - let's talk.

Most clients hiring a MERN developer have been burned before — developer went silent, code was messy, deadlines were missed. I'm Arjun, a full-stack MERN developer with 5+ years experience and part of Stack Decode — a Top Rated web development agency serving clients across the US, UK and Australia. What that means for you: I'm not a solo freelancer working alone. I have a senior team behind me, code review processes, and real accountability. What I build: → Full-stack web apps (React + Node + MongoDB) → REST APIs & third party integrations → React Native mobile apps → Real-time apps with Firebase & Redis → Cloud deployments on AWS, Heroku, Netlify → Clean, documented, maintainable code My stack: Frontend: React.js, Next.js, TypeScript, Tailwind CSS, Redux Backend: Node.js, Express.js, REST APIs Database: MongoDB, MySQL, Firebase, Redis DevOps: AWS, GitHub, GitLab, Netlify Why clients come back: — Daily progress updates — no radio silence — Clean code with proper documentation — Performance tested before every delivery — Senior review on every project via Stack Decode team $10K+ earned on Upwork · 23 projects · 763+ hours tracked Send me your project brief — I reply within 4 hours. — Arjun Verma

I build full-stack products that grow with your business – from backend APIs to clean UIs and scalable AWS infrastructure. You get one senior engineer handling it all, so there are no handoff delays or coordination issues. I'm AWS Certified Developer and specialize in serverless systems, cost-effective cloud architecture, and CRM/SaaS platforms. My clients typically launch 30–40% faster and save $5K–15K/month on infrastructure. I solve complex problems with clean, production-ready solutions. No fluff, no delays – just results that scale.