I build SaaS products, web applications, and MVPs from idea to production including the backend, frontend, APIs, database architecture, third-party integrations, and deployment.
I have 7 years of full-stack development experience working with Node.js, TypeScript, React, Next.js, Laravel, PHP, PostgreSQL, MySQL, MongoDB, Redis, AWS, and Docker.
My work ranges from customer-facing SaaS platforms and internal business applications to ERP systems, CRM integrations, booking platforms, and automation workflows. I can take an application from an initial idea or Figma design through architecture, development, testing, deployment, and ongoing improvements.
I also specialize in adding AI capabilities to real applications. I've built production systems using Claude, OpenAI, RAG, Qdrant, MCP, tool/function calling, and CRM integrations including an AI appointment receptionist that performs real booking actions and a Claude + MCP chatbot connected to Bitrix24.
What I can build
→ SaaS platforms and subscription-based applications
→ MVPs and custom web applications
→ Admin panels, dashboards and internal business systems
→ REST APIs and backend systems
→ React / Next.js frontends
→ Node.js / Laravel backends
→ Multi-tenant applications and role-based systems
→ Third-party API and CRM integrations
→ AI-powered features and workflows inside existing applications
→ RAG, AI agents and LLM integrations
→ AWS, Docker and production deployment
I focus on clean architecture, maintainable code and production-ready implementations rather than building something that only works for a demo.
I have a 100% Job Success Score and Top Rated status on Upwork, with experience across real estate, government, e-commerce, training, and business automation.
If you have a SaaS idea, MVP, existing application, or feature that needs to be built, send me the details. I'll tell you how I would approach it and whether I'm the right fit.
TypeScript
SaaS Development
Full-Stack Development
Node.js
React
Next.js
Laravel
PHP
MongoDB
PostgreSQL
MySQL
Supabase
API Integration
AI App Development
CRM Development
AWS Development
REST API
OpenAI API
JavaScript
WordPress
Muhammad Abubakkar M.
Ajman, United Arab Emirates
$25/hr
5.0
51 jobs
⚡ GET YOUR PRODUCTION-READY WEBSITE IN DAYS ⚡
🏆 Top Rated | 💯 100% Job Success | 👨💻 10+ Years Experience
I work as a React & Next.js Website Developer helping businesses, founders, startups, and agencies build modern, ultra-fast websites and web applications without the speed limits and bloat of legacy site builders.
Whether you are starting from a raw concept, a Figma design, or modernizing an existing platform, I take full technical ownership—from architecture and component setup to AI integrations, performance tuning, and final deployment.
🎯 What I Build & Deliver
* Custom Business & B2B Websites: Fast, responsive marketing, service, and lead generation websites built to convert.
* Next.js & React Web Applications: High-performance frontend and full-stack web builds using Next.js (App Router) and TypeScript.
* Figma to Next.js / React: Pixel-perfect, clean, and mobile-responsive code execution directly from your design files.
* AI-Powered Web Tools: Custom OpenAI/Claude API integrations, intelligent chatbots, Vercel AI SDK setups, and dynamic forms.
* Headless CMS & Custom Backends: Contentful, Supabase, Node.js, and PostgreSQL setups for seamless content control.
* Redesigns & Performance Upgrades: Rebuilding slow, messy codebases into clean, modular platforms with 95+ PageSpeed scores.
💡 Why Work With Me?
* Sub-Second Performance: Ultra-fast load times (under 0.8s ⚡) and optimized Web Vitals to boost SEO rankings and visitor retention.
* Tailored Architecture: Zero recycled templates or bloated plugins—just clean, scalable TypeScript and Tailwind CSS code.
* Direct 1-on-1 Ownership: Clear communication, frequent progress updates, and end-to-end execution from initial setup to launch.
💻 Modern Tech Stack
* Frontend: Next.js (App Router & Server Actions), React.js, TypeScript, Tailwind CSS, Shadcn UI, Framer Motion
* Backend & Databases: Node.js, Supabase, PostgreSQL, REST & GraphQL APIs
* AI & Automation: OpenAI API (GPT-4o), Anthropic API (Claude), Vercel AI SDK, RAG & Vector Search
* CMS & Cloud: Contentful, Headless CMS, Vercel, AWS, Netlify, Cloudflare
* Design & Workflow: Figma to Code, GitHub, Modern CI/CD
If you already have a website, Figma design, or even just an idea, send it over and I’ll tell you how I’d approach it.
TypeScript
Next.js
React
Web Development
Tailwind CSS
OpenAI API
AI Development
Artificial Intelligence
Web Application
Front-End Development
Full-Stack Development
API Integration
Node.js
Responsive Design
Supabase
Web Design
JavaScript
REST API
Aliaksandr M.
Ajman, United Arab Emirates
$35/hr
5.0
2 jobs
If your web platform is struggling to scale, or you are afraid that modernizing your legacy code will freeze your business roadmap for months, you need a React, Node.js, and MongoDB development team that takes full accountability for the architecture.
We are a compact, senior-heavy React, Node.js, and MongoDB development team led by an active Tech Lead. We maintain a strict zero-junior ratio, meaning your project is handled exclusively by experienced full-stack JavaScript and TypeScript engineers. We step in to rescue unstable codebases, build complex B2B platforms from scratch, and modernize legacy systems using React, Node.js, Express.js, and MongoDB.
To reduce your development costs and speed up delivery, we integrate Claude and AI agents into our daily React and Node.js workflow to automate boilerplate code and standard UI generation. Our Senior Architects focus purely on system design, security, and complex business logic across the MERN stack.
𝐂𝐨𝐫𝐞 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
We work primarily within the MERN stack — MongoDB, Express.js, React, and Node.js — and TypeScript ecosystem, scaling into a full MERN-stack build whenever the project calls for it, to ensure deep technical expertise across React, Node.js, Express.js, and MongoDB:
╳ 𝐂𝐨𝐦𝐩𝐥𝐞𝐱 𝐁𝟐𝐁 𝐒𝐚𝐚𝐒 & 𝐂𝐑𝐌: We specialize in structuring massive datasets into intuitive, functional interfaces using React, Node.js, Express.js, and MongoDB-backed data models alongside RESTful API architecture. By building standardized, highly reusable React UI components on top of an Express.js and MongoDB backend, we cut the time needed to deploy new administrative panels and statistical tables from weeks to days.
╳ 𝐙𝐞𝐫𝐨-𝐃𝐨𝐰𝐧𝐭𝐢𝐦𝐞 𝐋𝐞𝐠𝐚𝐜𝐲 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧: We avoid risky "big bang" rewrites. As a dedicated legacy modernization team, we run your legacy application and modern React, Node.js, and MongoDB target stack — backed by an Express.js API layer — concurrently under a shared, live session state. You keep releasing new features while we upgrade the underlying React and Node.js engine page by page.
╳ 𝐇𝐢𝐠𝐡-𝐋𝐨𝐚𝐝 𝐃𝐚𝐭𝐚 & 𝐖𝐞𝐛𝟑: We build fast Web3 front-end interfaces in React — wallet integration and on-chain data flows, without smart contract development — along with automated backend processes (like gas provisioning) on Node.js and Express.js, and resilient data ingestion pipelines (Elasticsearch, WebSockets, and MongoDB-backed storage) capable of handling heavy traffic spikes.
𝐑𝐞𝐚𝐥-𝐖𝐨𝐫𝐥𝐝 𝐓𝐫𝐚𝐜𝐤 𝐑𝐞𝐜𝐨𝐫𝐝
╳ 9+ Years of Single-Client Trust: Managed an enterprise workforce platform past 1,000,000+ lines of code, executing an incremental AngularJS to React migration with zero business interruption.
╳ 24x Data Processing Scale: Acted as CTO to re-architect a bottlenecked Node.js/Elasticsearch pipeline backed by MongoDB, driving backend throughput from 5 to 120+ events per second.
╳ 40% Lighter Infrastructure: Consolidated fragmented Next.js/React repositories for a crypto investment platform into a clean NX/Lerna monorepo — slashing production bundle sizes by 40%, accelerating load speeds by 60%, and significantly lowering cloud hosting bills.
𝐇𝐨𝐰 𝐭𝐨 𝐒𝐭𝐚𝐫𝐭: 𝐓𝐡𝐞 𝟏-𝐖𝐞𝐞𝐤 𝐃𝐢𝐬𝐜𝐨𝐯𝐞𝐫𝐲 𝐒𝐩𝐫𝐢𝐧𝐭
Committing to a new technical partner is a major step. To mitigate your hiring risk, we offer an initial 1-to-2 week pilot sprint at a reduced introductory rate. Grant us access to your repository, and we will untangle your React, Node.js, Express.js, and MongoDB infrastructure, isolate performance bottlenecks, or conduct a full codebase audit. We will deliver a clear architectural resolution plan. If our execution speed and communication meet your expectations, we transition into a standard long-term contract.
➞ Click the "Message" button, briefly describe your current technical challenges with your React, Node.js, or MongoDB stack, and let's set up a quick alignment call this week.
TypeScript
React
Web Application
AI Agent Development
JavaScript
Web Development
Next.js
AngularJS
Redux
Software Development
Code Refactoring
API Development
API Integration
SaaS Development
Node.js
Software Architecture
Database Architecture
Full-Stack Development
MERN Stack
MongoDB
Hamza J.
Dubai, United Arab Emirates
$60/hr
4.8
34 jobs
I help founders and product teams ship production backends and AI systems on cloud — APIs, serverless, RAG, and workflows on real data — not demos and not throwaway MVPs.
Top Rated · $80k+ on Upwork · 27 reviews · 34 completed jobs. Clients consistently cite expert AWS/TypeScript/serverless delivery, excellent code quality, clear teaching and handoff, and long-term collaboration.
WHAT I ENGINEER (AI Systems Engineering)
• Production backends — NestJS/Node, Postgres/DynamoDB, event-driven APIs
• Cloud-native systems — AWS Lambda, API Gateway, Cognito; GCP Cloud Run; Azure SSO patterns
• AI in production — RAG/document Q&A, LangChain backends, conversational AI with handoff
• Auth & platforms — OAuth, JWT, Passkeys-class patterns; multi-tenant SaaS foundations
PROOF — shipped systems
• Fintech auth at scale — Passkeys & social login (Deriv, NestJS)
• Enterprise expense ops — serverless employee/admin portals + Azure SSO (Forte Construction)
• Marketplace backend — search, feeds, event-driven commerce (Circlin)
• Medical staffing — serverless portals + ATS/Bullhorn integrations (Frontera Search Partners)
• AI document & chat backends — LangChain, RAG, serverless deploy paths (V1 Digital, legal-tech)
• GCP data pipeline modernization — Flask → Cloud Run + Scheduler; ~80% cost reduction on a major pipeline (Upwork client)
• Document AI for construction quotes — OCR + LLM + rules on AWS (Textract-class patterns)
WHAT CLIENTS SAY (from Upwork reviews)
• "Expert in AWS, TypeScript and Serverless" — repeat collaborator, highly recommended (Ferhat K.)
• "One of the best freelancers I have ever worked with" — rapid, cost-efficient cloud-native delivery; fantastic teacher (Neil B.)
• Collaborating 1+ year; detail-oriented; not afraid of new challenges (Victor S.)
• "Pillar of support" — depth of knowledge, thorough, covers all angles (Danny T.)
• Excellent code quality and pointed architectural input (Pablo R.)
• Knowledgeable AWS, clear English, hire again (Yuanbo G.)
START FAST — PROJECT CATALOG
Fixed packages for NestJS API starters, RAG/PDF Q&A, AWS deploy, WhatsApp FAQ bots, and landing pages — scoped deliverables in days, then expand to full systems.
CUSTOM ENGAGEMENTS
Platforms, marketplace backends, ops portals, and AI layers — milestone-based with source code and deploy notes.
Stack: TypeScript · NestJS · AWS · GCP · PostgreSQL · DynamoDB · LangChain · OpenAI · Docker
Dubai, UAE — own visa, fully authorized to work in UAE. Remote US/EU/MENA. Message with your system, stack, and timeline — or order a Catalog package to start.
TypeScript
Node.js
NestJS
Amazon Web Services
AWS Lambda
Serverless Computing
PostgreSQL
REST API
API Development
LangChain
OpenAI API
AI Chatbot
AI App Development
DevOps Engineering
Microsoft Azure
Docker
FastAPI
Google Cloud Platform
API Integration
Microservice
Alexey S.
Dubai, United Arab Emirates
$50/hr
5.0
82 jobs
Full-Stack Engineer | React · TypeScript · Node.js · Electron | 10+ years, top-rated on Upwork
I build web and desktop applications that ship and keep working after launch.
My current stack is React.js, TypeScript, Node.js, Electron, but I've spent a decade watching platforms come and go: low-level C/C++ on Windows, then C#/.NET, then Adobe Flex/AIR across web, desktop, and mobile. That range means I'm not locked into one way of solving a problem, and I'm comfortable in legacy codebases most developers won't touch.
TypeScript
Node.js
JavaScript
React
GraphQL
Front-End Development
D3.js
Redux
Next.js
Google Cloud Platform
Rizwan K.
Dubai, United Arab Emirates
$35/hr
5.0
28 jobs
I build AI systems that run real operations, intelligent workflows, document processing, and RAG systems, wrapped in full stack SaaS platforms that actually scale.
I take complete ownership from React, Next.js frontends and Node.js, Python backends to LLM integration, AI agents, automation workflows, and cloud deployment. If you're building a SaaS product where AI and automation are core features, I can own the entire build end to end.
Over 10 years, I've delivered Full Stack Development with React, Next.js, Node.js, Laravel, and Python AI for SaaS founders, healthcare platforms, FinTech companies, and automation first startups. I've shipped MVP platforms to production in 3 week sprints with zero missed milestones, and I've maintained long term codebases that generate $100K+ annual revenue today.
𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐂𝐥𝐚𝐮𝐝𝐞 𝐂𝐨𝐝𝐞 𝐄𝐱𝐩𝐞𝐫𝐭
𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝:
Full Stack Development Platforms
React, Next.js, and TypeScript frontends. Node.js, NestJS, and Laravel backends. PostgreSQL and MongoDB databases. I own the entire build, frontend, backend, deployment, and everything in between. No handoff gaps, no coordination overhead, just one developer responsible for shipping something that works.
AI & LLM Integration at Scale
Build & Scale AI powered features using LLMs like OpenAI, Anthropic (Claude), Grok, and Llama, with streaming responses, intelligent workflows, and built in safety guardrails. I also build scalable AI pipelines that transform documents, transcripts, and user data into structured, reliable outputs for real world applications.
Workforce Management CRM & MVPs
I build AI driven workforce management CRM platforms and MVPs: employee scheduling, shift planning, attendance and time tracking, workforce allocation, performance monitoring, and real time operational reporting in a single dashboard.
Intelligent Automation & AI Agents
I build AI powered workflows using tools like LangChain, LangGraph, Python, Playwright, and n8n to automate repetitive tasks, process documents intelligently, connect your business systems, and eliminate manual work, saving time while improving accuracy and efficiency.
Document Intelligence & RAG Systems
I build AI assistants that search your company's knowledge, documents, and databases to deliver fast, accurate answers based on your real business data, not guesses or made up information. This helps your team make better decisions with confidence.
𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈'𝐯𝐞 𝐛𝐮𝐢𝐥𝐝 𝐟𝐨𝐫:
SaaS and workflow automation platforms, Healthcare & HealthTech, Workforce Management Systems, Warehouse Management Systems, FinTech, AdTech, FemTech, and custom enterprise solutions including CRMs, internal business tools, and MVPs.
𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬:
React, Next.js, TypeScript, Tailwind CSS | Node.js, NestJS, Laravel, FastAPI, Django, GraphQL, REST APIs | PostgreSQL, MongoDB, Supabase, Firebase, Redis | OpenAI, Claude, LangChain, LangGraph, RAG, Pinecone, AI agents | n8n, Zapier, Playwright, webhooks, API orchestration | AWS, Docker, Vercel, CI/CD pipelines, WebSockets | Claude Code, Cursor, Lovable
𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐦𝐞:
I take full ownership of your vision and deliver fast with AI powered development, clean architecture, and clear communication. When you work with me, you get one developer shipping production ready systems from day one, no handoff chaos, no technical debt. Just a partner invested in building something that actually works and scales. That's why 30+ SaaS founders trust me to build and improve their products.
Building AI agents, RAG systems, or AI powered SaaS? I own everything, architecture, frontend, backend, AI, deployment. Let's make it real.
TypeScript
Full-Stack Development
SaaS Development
Python
React
Next.js
Node.js
AI Agent Development
OpenAI API
NestJS
REST API
PostgreSQL
Laravel
Supabase
AI Development
API Integration
Automation
AWS Development
Database Development
LangChain
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