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Kostiantyn P.
$45/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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React frontend full stack developer 12 years of experience in full stack development, AI development , complex web applications. React React.js | Next Next.js | Express Express.js | Node.js Node | JavaScript Js | AI developer , pipecat , RTVI , voice assistant , Stripe ✅ Generic Software Development Expertise 🔹 AI dailybots , pipecat , RTVI 🔹 Development of complex web applications 🔹 API development of for iPhone, Android, React apps. 🔹 Development of admin panel , dashboards , CRM , CMS 🔹 Website development ✅ Languages Frameworks 🔹 Python ( Django ) 🔹 JavaScript ( React JS Next.js Node.js Express ) ✅ Databases 🔹 MySQL 🔹 Redis 🔹 MongoDB 🔹 PostgreSQL 🔹 Redis ✅ Libraries, technologies, API’s 🔹 Zapier 🔹 n8n 🔹 Retell 🔹 Twillio 🔹 Elevenlabs 🔹 OpenAI 🔹 Pipecat 🔹 Contentful 🔹 Google API 🔹 Facebook API 🔹 Twitter API 🔹 Youtube API 🔹 RESTFull API 🔹 OKPAY API 🔹 JSON 🔹 XML 🔹 Push Notifications ✅ Experience with Environments Tools / Other 🔹 Redmine 🔹 GIT 🔹 Bug tracking systems: JIRA 🔹 Docker 🔹 Linux Ubuntu ✅ Languages 🔹 English – fluent 🔹 Ukrainian – native 🔹 Russian ✅ Next Steps I’d be thrilled to explore how we can ensure your project’s success. Are you available for a free 30 minute consultation? In this session, we’ll review our services, methodologies, communication process, and pricing structure. We’ll also dive into your project details to craft a tailored plan with a timeline and cost estimate. Rest assured, we’re flexible and can accommodate a wide range of budgets. Feel free to message me if you’d like to schedule a meeting, and I’ll provide you with an Upwork scheduler link. ✅ Highlighted Skills Full Stack Development React React.js Next Next.js Express Express.js Node.js Node JavaScript Js AI developer , pipecat , RTVI voice assistant devops php laravel react native developer ux designer erpnext laravel php developer metronic symphony simfony web developer playable ads react wordpress developer full stack developer web developer python developer backend developer sql mysql database web researcher javascript developer full stack developer front end developer full stack php "php laravel" "react native developer" "devops" "laravel php developer" "symfony php developer" "metronic" "symphony" "symphony developer" "web developer" "playable ads" "react" "website design" wordpress developer website design seo Currently i am not working with Laravel | CodeIgniter | Vue.js Vue | Angular |
SmartWayLabs
Associated with
SmartWayLabs
$100K+
earned
Rahul G.
$25/hr
100% Job Success
$100K+ earned
Offers consultations
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Full Stack Developer | Backend Developer ⭐ 11+ years of Experience ⭐ Helped clients earn $500,000+ ⭐ Served 250+ clients worldwide ⭐ 85% repeat clients ✅ Want Full Stack Developer to develop your Full Stack Development project? Want a Full Stack Developer to discuss your React, Next.js, Node.js, Express.js Web Devlopment idea? I am a Full Stack Developer who works across Frontend and Backend development, helping clients with complete Full Stack Development using React, Next.js, Node.js, Express.js, TypeScript, Tailwind CSS, and MERN Stack, APIs Development. Whether it’s Frontend Development with React and Next.js or Backend Development with Node.js and Express.js, I work end to end as a Full Stack Developer. ✅ As a Full Stack Developer, I can build complete web applications of any size. Full Stack Development includes React Frontend, Next.js SEO-friendly pages, Node.js and Express.js Backend, APIs, Admin Panels, Dashboards, and scalable architecture. For you, I can work as a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, and Express.js Developer, Full Stack Developer, Mobile App Developer, SaaS Application Development, Full Stack SaaS Developer, MERN Stack Developer, MEAN Stack Developer, Full Stack Developer React Node, React, Node, Next.js, MongoDB, REST API, React.js, React Developer, Node.js, React Node, Backend Node.js, Node.js Developer, Full Stack MERN, MERN, MERN Developer, MERN Stack, Azure, AWS, Google Cloud, Next Js developer. ✅ If that sounds good, let’s catch up on a Zoom call. I explain solutions better on a call. ✅ Full Stack Development stack Full Stack Developer React Next.js Node.js Express.js TypeScript Tailwind CSS MERN Stack Frontend Development Backend Development REST APIs JWT Authentication Secure API Development Web Applications Admin Dashboards SaaS Supabase Web Apps Web Sockets ✅ As a Full Stack Developer, I can: Build full-scale applications using React, Next.js, Node.js, and Express.js. Implement complex business logic and scalable Backend systems as a Full Stack Developer. Maintain and optimize existing Full Stack Applications built with MERN Stack. Debug and improve performance across Frontend and Backend. Design modern UI using Tailwind CSS with clean UX. Build secure APIs using Node.js, Express.js, TypeScript, JWT, and encryption. Integrate Frontend and Backend seamlessly in Full Stack Development projects. ✅ As a Full Stack Developer, I can build: Advanced React and Next.js Applications SaaS platforms and admin dashboards AI-powered web applications Real-time apps, chat systems, and APIs E-commerce platforms Secure MERN Stack applications Scalable startup and enterprise web products Stripe, Twilio, Paypal, Payments Integrations ✅ Why hire me as your Full Stack Developer? Flexible calls and discussions Clear, honest communication Superb Quality ✅ Hire me for - Full Stack Developer, MERN Stack Developer, Node.js Developer, React.js Developer, Next.js Developer JavaScript Developer, TypeScript Developer, Web Application, SaaS Application development Backend Development with Node.js, Express.js API Development, RESTful APIs, API Gateway, JWT Authentication, secure API integration Custom API development and integration for B2B platforms and SaaS platforms PostgreSQL / MySQL Developer, Database Developer, database management (PostgreSQL, MySQL, MongoDB) Database architecture and optimization, Node.js, React, PostgreSQL full stack development React.js front-end development and API integration using React.js, Next.js Tailwind CSS SaaS platform development with Node.js & React, MVP development Full Stack Developer for e-commerce & marketplaces, e-commerce platform development Marketplace & multi-vendor platform development FinTech API development (payment gateway integration) Healthcare web application development Real-time web applications with WebSockets AI integration with web apps (OpenAI, Gemini, DeepSeek, LangChain) Logistics & real-time tracking solutions Firebase, Supabase, Vercel AI Receptionist SaaS I work as a Full Stack Developer and Full Stack Web developer, take on front-end projects as a React developer, support CMS sites as a Front-end developer, and build cross-platform apps as a mobile app developer. I build web application solutions as a Full Stack Developer, Backend Developer using React, Next.js, Node.js with API integration and scalable API architecture. I use HTML5, CSS3, and Tailwind CSS for responsive web design, powered by JavaScript. I design database architecture with MySQL and follow best practices in software development using Git. My expertise are web application, API integration, React, Next.js, Node.js, CSS3, HTML5, MySQL, API, web design, database architecture, JavaScript, Git, software development, Tailwind CSS, Full Stack Developer, Backend Developer. E-commerce Development, Fintech Solutions, Healthcare IT ✅ Let’s connect on a Zoom call and discuss your Full Stack Developer requirements.
Rahul G. has worked .
Harris K.
$25/hr
100% Job Success
$4K+ earned
Available now
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I build AI platforms that handle real calls, real transactions, and real users — not demos. Right now I lead development on two production AI platforms: → UseCortana | Multi-channel AI agent SaaS (phone, SMS, WhatsApp, email, web). 50+ deployed agents, 5,000+ monthly calls, <200ms latency. I built the voice infrastructure (LiveKit, Twilio SIP, Deepgram, ElevenLabs), durable workflow orchestration (Temporal), RAG memory (Pinecone), multi-LLM routing (OpenAI, Anthropic, Google), and the full Next.js client dashboard. → VoiceCake | Bespoke AI voice agents for businesses across dental, HVAC, hospitality, and retail. Custom voice dialects, 24/7 call handling, appointment booking, CRM integrations (Salesforce, HubSpot, Zendesk, Zoho), WhatsApp Business API, website widget. HIPAA-aware, GDPR-compliant, AES-256 encrypted. Clients go live in 7–14 days. Previously: RLHF on Google Gemini (Turing), fintech dashboards tracking $2M+/day (FireDev), Fortune 500 bank modernization (SMBC Japan), and team lead for 8+ production apps (Stampa Solutions). What I deliver: → AI voice agent systems (outbound, inbound, live transfers, multi-dialect) → Multi-channel AI platforms (phone + SMS + WhatsApp + email + web) → B2B SaaS with LLM integration and agentic workflows → Internal dashboards with real-time analytics and reporting → Document processing, structured data extraction, compliance tools → MVP builds — prototype to production in 4–8 weeks Stack: React, Next.js, TypeScript, Python, FastAPI, Node.js, PostgreSQL, Redis, AWS, Docker, LiveKit, Twilio, Deepgram, ElevenLabs, OpenAI, Anthropic, Pinecone, Temporal. 40+ hrs/week. Ship first, polish second, document always. Core Expertise Keywords you can find me on: Full Stack Developer, AI Engineer, Machine Learning Engineer, Agentic AI Developer, Conversational AI Engineer, Web Application Developer, AI/ML Full Stack Engineer, LLM Engineer, AI/ML Solutions Architect, OpenClaw, ClaudeCode. React.js Developer, Next.js Developer, Angular Developer, TypeScript Developer, JavaScript Developer, Frontend Engineer, UI/UX Development (Figma to React/Angular), API Integration Specialist, MERN/MEAN Python Developer (FastAPI / Flask / Django), Node.js Developer, AWS Developer (DynamoDB, Lambda, S3, Cognito), Supabase Developer, PostgreSQL Database Design, API Developer (RESTful / WebSocket APIs), Cloud-Native Application Developer.
Harris K. has worked .
Oluwagbenga O.
$40/hr
91% Job Success
$9K+ earned
Available now
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BOOM!!! WE HIT $1M ON COLE WEB APP (I CAN SHOW YOU PROOF) ⭐⭐⭐⭐⭐ "Noah was fantastic to work with He understood exactly what we were trying to build improved our Bubble app architecture and delivered a scalable solution with excellent communication throughout the project I'd gladly recommend him to anyone looking for a Bubble Developer" - Cole Davis, Founder of LHYW I'm Noah, a Bubble Developer who helps founders turn ideas into scalable SaaS products, AI applications, marketplaces, CRMs, and internal business tools I don't just build a Bubble app—I help you launch a product that can survive real users, real growth, and real business demands THE PROBLEM I SOLVE AS A BUBBLE DEVELOPER You aren't looking for a Bubble Developer because you simply want another Bubble app. You're looking for a Bubble Developer because something is standing between your idea and launch. Maybe you need a Bubble MVP built quickly so you can validate your startup before your runway runs out. Maybe you have an AI-generated prototype that looked impressive in a demo but starts breaking the moment real users sign up. Maybe your existing Bubble app has become slow, difficult to maintain, or impossible to scale, and you need a Bubble Developer who knows how to fix the underlying architecture. Or maybe another Bubble Developer started your project, disappeared halfway through, and now you need someone who can understand the existing app and finish it the right way. Whatever brought you here, the goal isn't just to hire another Bubble Developer—it's to work with an experienced Bubble Developer who can solve the problem, build it properly, and set your product up for long-term success. My Bubble Developer process • Bubble Developer Discovery • Bubble Developer Planning • Bubble Developer MVP • Bubble Developer Backend • Bubble Developer Launch Bubble Developer for SaaS Bubble Developer for AI products Bubble Developer for marketplaces Bubble Developer for custom software WHY CHOOSE ME OVER OTHER BUBBLE DEVELOPERS I build products, not demos Many Bubble Developers can make an app look good An experienced Bubble Developer builds software that continues working six months after launch As a Bubble Developer, I focus on scalable databases, maintainable workflows, API integrations, security, performance, and user experience I'm a Bubble Developer who understands startups I help founders validate quickly with a Bubble MVP, then grow into a scalable SaaS platform without rebuilding everything from scratch I'm a Bubble Developer who also specializes in AI OpenAI, ChatGPT, Claude, Make com, n8n, Stripe, OAuth, webhooks, and third-party APIs are part of my daily workflow When you hire me, you're hiring a Bubble Developer who thinks about your business, not just your Bubble app A REAL BUBBLE DEVELOPER PROJECT A founder came to me with an idea for a two-sided marketplace Instead of simply becoming another Bubble Developer building screens, I redesigned the database, optimized the workflows, connected Stripe payments, implemented user authentication, created the admin dashboard, and integrated AI features The result was a scalable Bubble marketplace that could support real users from day one That's what a professional Bubble Developer delivers WHAT I BUILD AS A BUBBLE DEVELOPER • Bubble Developer for SaaS Applications • Bubble Developer for Startup MVPs • Bubble Developer for AI Web Apps • Bubble Developer for Bubble Marketplaces • Bubble Developer for Client Portals • Bubble Developer for CRM Systems • Bubble Developer for Booking Platforms • Bubble Developer for Internal Business Tools • Bubble Developer for Dashboards & Admin Panels • Bubble Developer for Business Automation Apps • Bubble Developer for Custom Web Applications • Bubble Developer for Responsive Web Apps • Bubble Developer for Mobile Responsive Applications • Bubble Developer for AI SaaS Platforms MY BUBBLE DEVELOPER EXPERTISE 🔹 Bubble Developer 🔹 Bubble io Developer 🔹 Expert Bubble Developer 🔹 Bubble Developer for Startups 🔹 Bubble MVP Development 🔹 Bubble SaaS Development 🔹 Bubble Marketplace Development 🔹 Bubble CRM Development 🔹 Bubble Booking App Development 🔹 Bubble Web Application Development 🔹 Bubble AI App Development 🔹 Bubble Backend Workflows 🔹 Bubble Database Setup 🔹 Bubble API Integration 🔹 Bubble Workflow Optimization 🔹 Bubble UI/UX 🔹 Bubble User Authentication 🔹 Bubble Stripe Integration 🔹 Bubble Payment Gateway Integration 🔹 Bubble OpenAI Integration 🔹 Bubble ChatGPT Integration 🔹 Bubble Make com Automation 🔹 Bubble n8n Automation 🔹 Bubble Zapier Automation 🔹 Bubble Client Portal 🔹 Bubble Admin Dashboard 🔹 Bubble Responsive Web App 🔹 Bubble Scalable SaaS App 🔹 Bubble Custom Software Development Message me today and let's build your next Bubble project. Keywords: Bubble Developer, Expert Bubble Developer, Hire Bubble Developer, Bubble Freelancer, Bubble Expert, Bubble MVP, Bubble SaaS, Bubble App Developer
$10/hr
86% Job Success
$20K+ earned
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With 4 years of experience as a Full Stack developer, I’ve built solid skills in various frameworks and full-stack technologies. I now specialize in developing AI-powered web applications and scalable front- and back-end systems using React, Next.js, TypeScript, Node.js, and FastAPI. My background includes work on everything from complex SaaS platforms to landing pages. I do more than just write code—I focus on creating solutions that are reliable, scalable, and user-friendly. Whether you need a brand-new app, improvements to an existing project, or tough issues solved, I ensure everything works smoothly and efficiently. 🧠 Frontend & Backend Expertise - Pixel-perfect Figma to code - React.js, Next.js (App Router, SSR, API routes) - TypeScript, TailwindCSS, MUI, Bootstrap - FastAPI , Django, Node.js, Express.js, Supabase, PostgreSQL, MongoDB 🤖 AI & Chatbot Development - Custom GPT-4 chatbots (OpenAI API) - AI-driven automation, assistants, workflow agents - Prompt engineering, embeddings, DALL·E & Whisper integration - NLP, text/image processing, and designing AI-first UIs - Scalable serverless AI infrastructures (OpenAI + Vercel/FastAPI) 🔗 Integrations & DevOps - Stripe, PayPal, and payment processors - GraphQL, REST APIs, third-party service connectivity - Deployment: Vercel, Heroku, AWS, Azure - Databases: MongoDB, PostgreSQL, MySQL 💡 Additional Skills - Web3, Ethereum Smart Contracts, DeFi applications - AI dashboards, admin panels, SaaS logic - OpenAI + LangChain and Pinecone for advanced memory/chatworkflows How I Help with MCP I can implement and configure Model Context Protocol (MCP) for your AI applications, allowing them to securely connect with external APIs, data sources, and services. This lets your AI models pull real-time information, automate actions, and interact with outside systems—without you needing custom integrations every time. I’ll help your AI be smarter, more responsive, and seamlessly integrated into your infrastructure using MCP. 🌍 Flexible Availability - Open to both long- and short-term projects - Comfortable with US, EST, PST, and CET time zones - Fast turnaround, transparent communication, reliable ongoing support I’m committed for the long haul. Present your idea—I’ll build, launch, and provide ongoing support. Simple and straightforward. Your project goals are my priorities.
Siddhant G. has worked .
Abhishek G.
$25/hr
96% Job Success
$200K+ earned
Available now
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I don’t just write code. I work as a product partner helping refine ideas, suggesting improvements, and ensuring every project is aligned with your business goals. Clients value me for delivering on time and for my ability to take ownership of the product vision, not just complete tasks. Along the way, I’ve built AI chatbots with 50K+ users, AI agents that reduced workload by 60%, and full-stack SaaS products generating $2M in monthly revenue. I’ve also developed a product selected by Y Combinator and another that was acquired within 2 years. My unique edge is combining AI innovation with full-stack development — building scalable products, intelligent automations, and platforms that deliver measurable business outcomes. 🔹 Core Expertise ✅ AI Product Development: GPT-powered apps, chatbots, AI agents ✅ Automation & Integration: n8n, Zapier, Make, workflow orchestration, API integrations ✅ Frontend: React.js, Vue.js, React Native, TypeScript, HTML5, CSS3, Bootstrap ✅ Backend: Node.js, PHP, Laravel, WordPress ✅ Databases: MongoDB, MySQL, PostgreSQL ✅ Cloud & DevOps: AWS, Azure, GCP, DigitalOcean ✅ Design & Prototyping: Figma 📈 Success Snapshot ✅ Built chatbots with 50K+ users and AI agents → saved teams 20+ hours weekly ✅ Helped scale SaaS platforms from MVP to 50,000+ users with strong uptime ✅ Managed a SaaS product generating $2M monthly revenue ✅ Built a product selected by Y Combinator and another acquired in 2 years ✅ Delivered automation pipelines with n8n/Zapier/Make → improved efficiency by 60% 🔹 Why Clients Work With Me ✅ Blend of full-stack engineering + AI expertise ✅ Proven record of building products that generate revenue, get funded, and get acquired ✅ Take ownership: I contribute ideas, refine features, and improve product vision — not just execute tasks ✅ Always deliver on time, with a transparent, milestone-driven workflow ✅ Balance of technical depth + product mindset, ensuring solutions that grow with your business 👉 If you’re looking for a developer who can build scalable apps, integrate AI, and act as a true product partner with ownership, let’s connect. For Search Optimization: AI Developer, Full-Stack Developer, SaaS Developer, Node.js Developer, React.js Developer, Vue.js Developer, Chatbot Developer, AI Agent Developer, Automation Developer, n8n Expert, Zapier Specialist, Make Expert, Workflow Automation, GPT Integration, AI SaaS Developer, Backend Developer, Frontend Developer, Cloud Developer, AWS Developer, GCP Developer, Azure Developer, Figma UI/UX
Abhishek G. has worked .
Codebuddy Pvt. Ltd.
Associated with
Codebuddy Pvt. Ltd.
$70K+
earned
Ann S.
$30/hr
99% Job Success
$100K+ earned
Available now
Offers consultations
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🏆 Top 3% of Freelancers - Top Rated Plus 💎 10+ Years as Node.js Developer, Backend Developer, Full Stack Developer, Web Developer ⭐ Can do anything with Node.js, React, Next.js, MERN, JavaScript, TypeScript, ExpressJS, MongoDB, Python, Vue.js, React Native, RESTful API & AI integration "Anna is an exceptional developer! Our project flourished under her expertise. She's detail-oriented, creative, and a pleasure to work with. Communication was seamless, making the collaboration effortless. We highly endorse Anna and eagerly anticipate future collaborations." - Max A., NDA Hi! I'm Anna, a senior Node.js developer and backend developer with 10+ years building scalable web applications, SaaS platforms, RESTful APIs, and enterprise systems. Whether you need a dedicated Node.js developer, a node.js backend developer, or a full stack developer who owns the entire product - I deliver production-ready solutions built to scale. As a back end developer Node.js and full stack web developer, I work across the complete stack: from database architecture to pixel-perfect UI. My core stack: Node.js · ExpressJS · React · Next.js · TypeScript · JavaScript · MongoDB · MySQL · PostgreSQL · Vue.js · React Native · Python · PHP · WordPress · HTML · CSS 3 · Supabase · GraphQL · AWS · Docker 🔹 What I Do Best as Node.js Backend Developer As a Node.js developer and backend developer with enterprise-level experience, I specialize in: ✅ Back-End Development & Backend NodeJS Architecture - Scalable Node.js services, microservices, and backend nodejs systems built with ExpressJS, REST, and GraphQL. As a node.js backend developer, I design APIs that are fast, secure, and cloud-ready. Python backend and supabase backend integrations included. ✅ Full-Stack Development & Software Development - End-to-end web development as a full stack developer: React / Next.js frontends powered by robust Node.js backends. Full stack nodejs, react node.js, vue.js node.js, and node.js next.js delivery. Also available as a python full stack developer for AI-heavy projects. ✅ AI Integration & AI Model Integration - Embedding AI integration and AI model integration into Node.js, Python, and React applications. Full stack developer AI workflows, including LLM-powered features, intelligent automation, and app developer with AI capabilities. ✅ RESTful API Design & API Integration - As a backend engineer and back end developer Node.js, I build and integrate RESTful APIs, GraphQL endpoints, and third-party services. Experienced with Supabase, Airtable, and postgresql supabase javascript rest json pipelines. ✅ MVP & SaaS Development - From MVP app development to production SaaS: full stack developer SaaS platforms, no code MVP consultation, mobile app MVP, and scalable multi-tenant architecture as a fullstack developer node.js. ✅ Mobile & Front-End Development - React Native mobile apps, Vue.js node interfaces, react nextjs dashboards, and HTML/CSS 3 UIs. React developer with node.js experience across web and mobile. Also: react native mobile, front end developer react, html website developer. ✅ DevOps, Cloud & Security - AWS, Docker deployments; database design with MongoDB, MySQL, PostgreSQL, Supabase. Performance optimization and security hardening for every backend nodejs system I deliver. ✅ QA & Testing - QA development is built into every project. I write tests, perform code reviews, and validate backend nodejs services and React frontends before delivery - so you ship with confidence, not crossed fingers. 💡 Projects I'm Proud Of 🔹 SaaS Platform - As lead Node.js developer and node.js backend developer, built a MERN-based platform with subscription billing, multi-tenant architecture, and cloud pipelines. Increased user engagement by 40% and contributed to $1.2M+ ARR growth after launch. 🔹 E-commerce System - Delivered checkout flows as a full stack developer using React and Node.js APIs. Integrated payments, analytics, inventory sync, and fulfillment services. Boosted conversion rates by 25% and increased monthly revenue by $480K through frontend optimization. 🔹 Enterprise Dashboard with Admin Panel - As a node.js backend developer and react developer, built real-time dashboards with Next.js, GraphQL, and Node.js. Improved system throughput by 50% and reduced operational processing costs by 32%. 🚀 Why Work With Me? ✔ 300+ projects as a Node.js developer, backend nodejs engineer, and full stack developer ✔ 150+ satisfied clients across E-commerce · SaaS · FinTech · EdTech · Healthcare · Real Estate · Logistics · Startups ✔ Long-term partner from MVP to enterprise - I'm the Node.js developer and full stack developer who stays, scales, and delivers 📩 Need a Node.js developer, backend developer, or full stack developer for a custom solution? Invite me to the job or send a direct message and let's build something great. 📆 Last Updated: 7/1/26
Ann S. has worked .
Admiral Studios 🏆 Award-Winning Dev & Design & SEO Agency
Associated with
Admiral Studios 🏆 Award-Winning Dev & Design & SEO Agency
$500K+
earned
$60/hr
100% Job Success
$300K+ earned
Offers consultations
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(Visit brysona.dev) Senior Front-End Developer with 9+ years of experience building modern, fast, and reliable web applications. 🟢 React • Vue • Next.js / Nuxt • Gatsby • TypeScript 🟢 Headless WordPress (REST/GraphQL) • WP-CLI 🟢 Framer Motion • GSAP 🟢 Cursor • ChatGPT • Emergent ⸻ Practices • Translating ideas into clean, production-ready interfaces • Clear, direct, and consistent communication • Realistic estimates + transparent progress • Writing maintainable, scalable front-end architecture ⸻ What I can help you build • Modern React, Vue, Next.js, or Nuxt applications • Pixel-perfect interfaces from Figma • AI-powered tools: chat interfaces, media tools, automation workflows • Advanced animations (scroll-based, 3D, physics, micro-interactions) • High-performance, SEO-optimised websites • Web audio/video experiences • Headless WordPress powering React/Vue front-ends • Component systems and reusable design systems ⸻ Focus Combining strong UI engineering with modern frameworks and AI-driven UX to deliver fast, engaging, and reliable experiences.
Hassaan E.
$25/hr
100% Job Success
$70K+ earned
Available now
Offers consultations
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🏅 Top Rated Plus | 100% Job Success | 🚀 7+ years shipping production software Your team is burning $50K–$500K a year on work AI should already be doing. I build the systems that reclaim it: I pinpoint the waste, automate it, and ship it to production. Not prototypes, not demos, real systems running 24/7. I'm an AI Developer and AI-powered Full Stack Engineer with a strong machine learning foundation, and I lead a team that takes extreme ownership of what we ship. As an AI Developer, I take projects from idea to production: AI architecture, AI agents, agentic workflows, and RAG pipelines, grounded in real machine learning rather than wrappers. As a Full Stack and Web Developer, I build the product around them in React, Node, and Python. And as an AWS architect, I deploy and harden everything with observability, security, and cost optimization, so you get an AI system that ships fast and runs reliably in production. 🐾 Pet Health Care System — AI-native OS for vet hospitals; unifies scheduling, records, billing, imaging across 6–12 tools. Targets 40% of a vet's day lost to paperwork, $50K–$100K/yr no-show losses, 8–12% of procedures never invoiced. Built with Next.js, NestJS, PostgreSQL, Python AI and deployed on AWS Architecture. 🏨 Hotelly — All-in-one hotel ops platform: CRM, billing, tasks + Apple TV (tvOS) in-room entertainment. 70–95% less manual reset effort, 50–80% faster provisioning, 60–90% less admin time. Built with React, React Native, Node.js, PostgreSQL, deployed on AWS Architecture by AI Developers. 📄 DocuPulse — AI document intelligence inside Excel for finance & compliance teams. Processing 5–10 min → under 1 sec, 94% cost reduction, 88–99% accuracy. Built with React, Node, ElasticSearch, AWS. 🪟 Fenestra — AI order intelligence turning WhatsApp/emails into error-free POs in under 60 sec across 25,000+ SKUs. Live inventory checks, accurate orders before dispatch. Built with Next.js, NestJS, PostgreSQL, LangChain, Claude. 🛒 Smart Shop AI — Ecommerce intelligence unifying Shopify, Google Ads & Meta with a conversational AI analyst. Real-time insights, anomaly alerts, campaign recommendations. Built with NestJS, React, PostgreSQL, LangChain. Developed by a team of AI Developers and AWS Architects ✅ AI Agents & Agentic AI: As an AI Developer and agentic AI developer, I design AI agents and multi-agent systems that run agentic workflows across LangGraph, CrewAI, n8n, and Zapier, designed to scale operations without adding headcount. ✅ AI Voice & AI Chatbots: I build voice AI agents and conversational AI on the OpenAI Realtime API, LiveKit, ElevenLabs, Deepgram, and Whisper, plus WhatsApp, Telegram, and web chatbots wired to real business logic. ✅ RAG & LLM Engineering: I build hallucination-resistant RAG pipelines in Python over Pinecone, Weaviate, Qdrant, ChromaDB, LanceDB, and Amazon OpenSearch, using hybrid search, re-ranking, chunking, and embeddings. Also Deployed on AWS as a scalable AWS Architecture ✅ AI Orchestration: I orchestrate LLM applications in Python with LangChain, LangGraph, and LlamaIndex, connecting the OpenAI API, Anthropic Claude (Sonnet, Opus, Haiku), AWS Bedrock, and Vertex AI through MCP servers, function calling, and structured outputs. ✅ Machine Learning & Data Science: As a machine learning engineer working alongside data scientists, I take models across the full lifecycle, from data pipelines and feature engineering to training, evaluation, and deployment. ✅ Document Intelligence: I turn documents into answers with PDF parsing, OCR, and document Q&A over knowledge bases and ERP integrations. ✅ Prompt Engineering: I engineer reliable model behavior through system prompt architecture, chain-of-thought, and prompt chaining, then harden it with prompt optimization, evals, and guardrails. ✅ Generative AI Models: I work across GPT-4o, GPT-4 Turbo, o1, and o3, Claude Sonnet, Opus, and Haiku, Gemini 1.5 and 2.0, LLaMA, Mistral, and Whisper, picking the right model for each job. ✅ Full Stack & Web Development: As a full stack developer, web developer, and Python developer, I build full stack apps with React, Next.js, TypeScript, and Tailwind CSS on the front end, and Node.js, NestJS, Express, and Python (FastAPI, Django, Flask) on the back end, including work as an AI website developer and app developer building AI web apps around real product logic. ✅ AWS Architecture & Cloud: As an AWS cloud architect and AWS solutions architect, I handle AWS architecture end to end, deploying on AWS using Lambda, EC2, ECS, EKS, Fargate, S3, RDS, Aurora, DynamoDB, SQS, SNS, EventBridge, CloudFront, API Gateway, VPC, IAM, KMS, WAF, and Secrets Manager. AWS Certified Cloud Practitioner. ✅ No-Code & Workflow Automation: As an Airtable developer, I connect tools like Airtable, n8n, Zapier, and Make into automated workflows that move data and trigger actions automatically. 📩 Send me your project brief. I'll reply within 2 hours with a concrete action plan.
Hassaan E. has worked .
DiveScale
Associated with
DiveScale
$10K+
earned
Jitendra J.
$18/hr
93% Job Success
$200K+ earned
Available now
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📈 $200K+ Earned | 13+ Years Experience | 50+ Apps Launched I build scalable, high-performing mobile and web apps from the ground up so you don’t need to hire multiple freelancers. From design to deployment, I make sure your app is fast, secure, and user-friendly. 🚀 Core Services:- - Mobile App Development: Android (Kotlin, Java), iOS (Swift, Objective-C) - Cross-Platform Apps: Flutter, React Native - Backend Development: Node.js, PHP, Python, Firebase, AWS, MongoDB, MySQL - AI Integrations: ChatGPT, Azure OpenAI, LLaMA 2, AI automation - Cloud Solutions: Firebase, AWS, Azure - Payment Systems: Stripe, PayPal, Razorpay, in-app purchases 🏆 Selected Success Stories:- - Healthcare SaaS App – HIPAA-compliant telemedicine platform with AI symptom checker. - Marketplace App – Built from scratch with Firebase backend, integrated Stripe payments, and real-time chat. - Fintech Mobile Banking – Real-time KYC verification, fraud detection, and secure payment processing. - Live Streaming Platform – HD streaming, video-on-demand, and AI-powered content recommendations. 💡 Why Clients Hire Me:- - 12+ Years Android Development | 9+ Years iOS Development | 8+ Years Flutter & Hybrid - 50+ apps launched with 4.8★ average rating - Strong track record in Healthcare, Fintech, E-commerce, Education, SaaS, AI - End-to-end delivery: Idea → UI/UX → Development → Launch → Maintenance - Clear communication, on-time delivery, and scalable solutions 🧠 AI & Machine Learning Expertise:- - AI Chatbots, Recommendation Engines, Predictive Analytics - OpenAI GPT-4, Azure OpenAI, LLaMA / LLaMA 2 - AI integration for Healthcare, Fintech, E-commerce, SaaS 📩 Let’s Build Something Great - Message me with your idea and I’ll send you a tailored action plan, realistic timeline, and cost estimate based on your exact needs. 💼 Domain I have worked:- Android Development, iOS Development, Mobile App Development, Kotlin Development, Xcode Development, Swift Development, Android Studio Development, GitHub Repo Expert, Flutter Expert, Flutter Development, GPS Implementation, Hybrid Mobile Development, AWS Authorization, Cloud Based Integration, Firebase Expert, SaaS Expert, B2B & B2C Expert, Full-Cycle Product Development, Startup App Prototyping, Chatbot Development, AI Chatbots Development, AI Based Healthcare Development, AI Based Financial Development, AI SaaS Project Development, Integrate Open AI in Multiple Project Development, Custom App Development.
Jitendra J. has worked .
Inventco Software Pvt. Ltd.
Associated with
Inventco Software Pvt. Ltd.
$20K+
earned