Talent badge filter
Skills filter
Select talent location
Select talent time zones
$49/hr
100%
Job Success
$400K+ earned
Offers consultations
Start of list.
End of list.
Hello there! Welcome to my page! 🙂 Ready to start. I propose to start from the call. You will see I am a real person, geek🤓, traveller. 56 projects with 100% JSS taken. WIll be glad to help you as well! Just drop me a message or invite.
$53M+ Raised by Clients | 84+ Products Delivered | 100% Job Success | 14 Years in SaaS
✅ 14 years as a Full Stack Developer, now CTO & Founder of Gearheart, an Enterprise SaaS product development studio
✅ Co-Founder & CTO at Beyond the Wow, an AI-native MVP studio
✅ As a SaaS Developer, I've helped 84+ startups and growth-stage SaaS teams scale their products
✅ Built SmartSuite from scratch as lead Full Stack Developer - $38M raised, 7M+ users
✅ 2-4x faster delivery as a SaaS Developer using Claude Code, Lovable, Cursor, and Replit
✅ Top Developer at Clutch and Goodfirms
I'm a CTO and SaaS Developer specialist with 20 years experience as a Full Stack Developer for SaaS companies, working as a React Developer.
As a SaaS Developer and MVP Developer focused on SaaS architecture and rapid deployment, I personally deliver on 84+ products for 70+ SaaS clients across 7 countries. I work as a React Developer, WordPress Developer, or Mobile App Developer. I bring SaaS Developer speed with Full Stack Developer depth and Software Developer expertise into every project.
🌟 SAAS DEVELOPER EXCELLENCE
My SaaS Developer standard comes from 14 years working as a SaaS Developer, delivering results like:
- SmartSuite - a SaaS Developer MVP I built from startup concept as React Developer and Full Stack Developer SaaS specialist: $1.2M ARR in 4 weeks, $38M raised, Capital One trusted
- Globalli - a SaaS Developer build for enterprise: HR/payroll across 125+ countries, SOC2 Type II, $15M raised, delivered as a SaaS Developer specialist including NextJS Developer and WordPress Developer work, all as a Full Stack Developer SaaS architect
🔧 SAAS DEVELOPER & MVP DEVELOPER SERVICES
- Discovery & Prototype: a SaaS Developer engagement that gets you a clickable prototype in 5 days - NextJS Developer ready for startup scaling
- Rescue Diagnosis: a SaaS Developer review with Full Stack Developer optimization and a performance audit
- MVP & Landing Page: SaaS Developer MVP Development in 3 weeks, React Developer frontend and Software Developer backend
- Sprint Subscription: a long-term SaaS Developer partner, Mobile App Developer and WordPress Developer support
⚡ MVP SPEED - SAAS DEVELOPER & MVP DEVELOPER DELIVERY
- Legal SaaS platform + AI, delivered as a SaaS Developer → 2 months
- AI Receptionist with CRM, an MVP Developer Python build → shipped in weeks
- B2B Dental SaaS - SaaS Developer and Web Developer NextJS delivery → 3 weeks
- Medical device MVP - MVP Developer Full Stack development with Software Developer patterns → 2 weeks
- Multiple SaaS Marketing web projects built with Web Developer craft, React Developer expertise, and SaaS Developer focus
💡 WHY WORK WITH ME
- Product Thinking First: as a SaaS Developer I ask "should you build?" not "what to build?" - most Software Developer freelancers skip this critical step
- AI Speed & Quality: as a Full Stack Developer I use Claude Code, Lovable, Cursor as an engineer - not a prompt writer. Delivers enterprise-grade solutions
- I'm a Founder Too: Full Stack Developer founder mentality, deep SaaS Marketing understanding, real startup experience
- Offshore + Enterprise Standard: Ukraine-based Full Stack Developer with NextJS Developer, WordPress Developer, and Mobile App Developer expertise, plus Python Full Stack Developer capability.
I deliver Web Developer quality with SaaS Marketing outcomes. I cover REST API architecture as a Full Stack Developer, NextJS Developer optimization, WordPress Developer customization, and Mobile App Developer delivery. Serving 70+ SaaS Developer clients across 7 countries, 30% return to work with me again as their SaaS Developer for their next startup project.
I build AI-native systems with a SaaS Marketing focus. Every SaaS Developer and Software Developer engagement I take on ships with business metrics first. As a SaaS Developer and Full Stack Developer: $400K+ Upwork | 100% Job Success.
⚙ FULL STACK DEVELOPER & MVP DEVELOPER STACK
AI & Integration: as a Full Stack Developer I rely on Claude Code, OpenAI, FastAPI, LangChain - NextJS Developer compatible
Frontend: React, TypeScript, NextJS Developer tools, Vue.js
Backend: Python Full Stack Developer stack: FastAPI, Django, Node.js, GraphQL, PostgreSQL
DevOps: AWS, DigitalOcean, Docker, Kubernetes
Every Full Stack Developer and MVP Developer project I take on includes this complete toolkit. I work as a NextJS Developer, WordPress Developer, and Mobile App Developer specialist, alongside my Python Full Stack Developer and Software Developer skills - optimized for WordPress Developer flexibility and SaaS Marketing success from day one of your startup project.
Associated with
Gearheart.io
$70K+
earned
$18/hr
97%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
I build AI-powered SaaS, web and mobile products that are designed to launch fast, scale reliably, and solve real business problems.
With 7+ years of experience, 6,500+ Upwork hours, $100k+ earned, 56+ successfully delivered projects, and experience helping 30+ startups, I work with founders, startups, and growing businesses from idea → MVP → production → scale.
My focus isn't just writing code. I take ownership of architecture, development, AI integration, APIs, cloud infrastructure, performance, deployment, and long-term scalability.
🚀 What I Can Build For You
- AI & Intelligent Products
AI-powered SaaS platforms
AI agents & autonomous workflows
AI chatbots & virtual assistants
RAG & knowledge-based AI systems
OpenAI, GPT, Claude & Gemini integrations
Semantic search & recommendation engines
AI content generation
Workflow & business process automation
- Full-Stack Web & SaaS
React.js / Next.js applications
TypeScript / Node.js backends
Multi-tenant SaaS platforms
Marketplaces & eCommerce
Real-time applications
Admin & analytics platforms
REST / GraphQL APIs
Authentication, authorization & payments
- Mobile Applications
React Native / Expo
iOS & Android applications
Real-time chat & notifications
Subscription & payment systems
Firebase integrations
App Store & Google Play deployment
- Cloud & Backend
PostgreSQL / MongoDB / Supabase
AWS / Google Cloud
Docker & CI/CD
Scalable API architecture
Performance optimization
Secure authentication & integrations
📈 Results I've Delivered
✓ AI Content Platform - reduced manual editorial work by 65%, cutting processing time from 8 hours to under 2 hours.
✓ Multi-Vendor Marketplace - built a platform supporting 12,000+ active users with payments, role-based dashboards, and real-time functionality.
✓ React Native App - delivered a production iOS + Android application in 4 weeks, including messaging, subscriptions, and payments.
✓ Healthcare Platform - helped build a platform that onboarded 3,000+ users within 90 days, with secure video consultations and HIPAA-aligned architecture.
✓ Automation Platform - engineered a workflow automation system processing 50,000+ automated workflows every month.
🧠 Why Clients Work With Me
Product thinking, not just coding.
I understand that successful software needs to support business goals, users, timelines, and future growth.
End-to-end ownership.
From technical planning and UI implementation to backend architecture, AI integrations, deployment, and post-launch improvements.
Startup-friendly execution.
I can move quickly when you're validating an MVP while still making architecture decisions that won't create unnecessary technical debt later.
Clear communication.
You’ll always know what is being built, what has been completed, what comes next, and where decisions are needed.
🛠️ Core Stack
Frontend: React, Next.js, TypeScript, Tailwind CSS
Backend: Node.js, Express.js, REST, GraphQL
AI: OpenAI, GPT, Claude, Gemini, LangChain, RAG, AI Agents
Database: PostgreSQL, MongoDB, Supabase, Prisma
Mobile: React Native, Expo, Firebase
Cloud: AWS, Google Cloud, Docker, CI/CD
Payments: Stripe and subscription billing
🤝 Let's Build Something Great
Whether you are starting an MVP, adding AI to an existing product, scaling a SaaS platform, rebuilding a legacy application, or launching a web/mobile product, I can help turn your requirements into a production-ready solution.
Send me your idea, requirements, or existing product. Let's discuss the best technical approach and get it moving.
Associated with
OnGraph Technologies Private Limited
$10M+
earned
$25/hr
92%
Job Success
Available now
Offers consultations
Start of list.
End of list.
I am Sabyasachi Saha, an AI Agent, Full-Stack AI, Workflow Automation, LLM, and SaaS Developer. I work as an individual consultant and hands-on technical architect, backed by my experience as the CEO and Chief AI Scientist of Techno Exponent.
I have completed my PhD from SSBM Geneva with a research focus in Generative AI and Sentiment Analysis. With 20+ years of experience in the IT industry, I help startups, enterprises, and growing businesses build intelligent, scalable, and automation-driven digital products.
My major focus is on AI agents, LLM-based applications, workflow automation, SaaS platforms, full-stack application development, data engineering, and analytics. I combine strong technical knowledge with business understanding, so I can support projects from idea validation, architecture planning, development, integration, automation, and long-term scalability.
I founded Techno Exponent in 2011, and since then, we have helped global businesses with digital transformation, AI solutions, automation platforms, SaaS products, enterprise applications, web/mobile apps, and complete IT solutions. As an individual professional on Upwork, I personally bring leadership experience, AI architecture knowledge, hands-on development understanding, and product-focused thinking to every project.
I can help you with:
✅ AI Agent Development
✅ LLM-Based Applications
✅ ChatGPT / OpenAI / Claude / Gemini Integration
✅ RAG Systems and Vector Databases
✅ AI Chatbots and Voice Bots
✅ Workflow Automation
✅ Business Process Automation
✅ SaaS Product Development
✅ Full-Stack Web Application Development
✅ Data Engineering and Data Analytics
✅ AI-Powered Dashboards and Reporting Systems
✅ CRM, ERP, and Third-Party API Integrations
✅ MVP Development and Product Modernization
I have worked across multiple industries, including healthcare, education, e-commerce, real estate, fintech, logistics, transportation, recruitment, food delivery, dating platforms, blockchain, and enterprise automation. My experience includes AI chatbots, AI calling bots, CV screening platforms, AI interview systems, RAG-based knowledge assistants, analytics dashboards, CRM automation systems, workflow automation platforms, SaaS products, and scalable full-stack applications.
My technical expertise includes:
✅ AI/ML: Generative AI, NLP, LLMs, AI Agents, RAG Systems, LangChain, LlamaIndex, Hugging Face, OpenAI, Claude, Gemini, Computer Vision, Sentiment Analysis, Predictive Analytics
✅ Automation: Workflow Automation, Business Process Automation, AI-Powered Automation, n8n, Make, Zapier, CRM Automation, Email Automation, Lead Automation, API Automation, WhatsApp Automation, Voice Bot Automation
✅ Data: Data Engineering, ETL Pipelines, Data Analytics, Business Intelligence, AI-Powered Dashboards, Reporting Systems, Data Visualization, Data Warehousing, Real-Time Data Processing
✅ SaaS: SaaS Product Development, Multi-Tenant Architecture, Subscription Models, Role-Based Access Control, Admin Panels, User Dashboards, API-First Architecture, Scalable Cloud-Based Platforms
✅ Full-Stack Development: Python, FastAPI, Node.js, Express.js, Django, Flask, Java, PHP, Laravel, React.js, Next.js, Angular, Vue.js, TypeScript, JavaScript
✅ Databases & Cloud: PostgreSQL, MySQL, MongoDB, Firebase, Redis, Vector Databases, Pinecone, Chroma, Weaviate, AWS, GCP, Azure, Docker, Kubernetes, CI/CD
✅ Integrations: Stripe, PayPal, Twilio, WhatsApp API, SendGrid, Google APIs, CRM/ERP Integrations, Payment Gateways, Custom API Development
Achievements:
🏆 Awarded “Most Influential Young Leaders 2021-22” by AsiaOne and Economic Times
🏆 Techno Exponent recognized as Times Leading IT Company 2022
🏆 Techno Exponent recognized as Most Customer-Centric IT Company 2022
🏆 Techno Exponent recognized as Leading App Development Company of the Year 2023
When working with me, you get more than a developer. You get a technical partner who understands business goals, product architecture, AI implementation, automation strategy, scalability, and execution.
My goal is simple: to help businesses turn ideas into intelligent, scalable, and revenue-focused digital products.
If you are looking for someone who understands AI, automation, SaaS, full-stack development, data, and business execution, I would be happy to discuss your project and help you build the right solution.
Associated with
✔️T- WEB EXPONENT SERVICES Pvt. Ltd. - CMMI Level 5 Company that served NASA, Disney, Red Bull, Amazon, The Wall Street Jounral, etc.
$20/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
Abdul R.
has worked
.
🕰️ 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐔𝐒, 𝐂𝐚𝐧𝐚𝐝𝐚, 𝐔𝐊, 𝐀𝐮𝐬𝐭𝐫𝐚𝐥𝐢𝐚, 𝐨𝐫 𝐩𝐫𝐞𝐟𝐞𝐫𝐫𝐞𝐝 𝐭𝐢𝐦𝐞 𝐳𝐨𝐧𝐞𝐬
🥇 GOLD MEDALIST
🏆 Top-Rated Plus (𝐓𝐨𝐩 𝟑% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤)
🌟 10+ Years of Experience
✔ 100+ Successful Projects
🕒 5000+ Hours of Development Work
📞 Availability: 40+ hours per week
𝐄𝐱𝐩𝐞𝐫𝐭 𝐈𝐧:
💲 Fintech Development
🛒 E-Commerce / Marketplace Platforms
📋 CRM & Business Systems
🏠 Real Estate Platforms
✉️ Social & Community Applications
💻 ERP Systems (Sales | Accounting | HR)
📱 Web & Mobile Applications
🖥 Custom SaaS Products & Management Software
🤖 AI-Powered Applications & Business Automation
🎉 𝐂𝐞𝐥𝐞𝐛𝐫𝐚𝐭𝐢𝐧𝐠 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 & 𝐀𝐈-𝐄𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 🎉
I specialize in building scalable web platforms, business systems, and AI-enabled applications.
My focus is on delivering end-to-end software solutions from frontend and backend development to cloud deployment and AI integrations.
𝐒𝐤𝐢𝐥𝐥𝐬:
🚀 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤:
⚛️ React | 🚀 Next.js | 🌀 Nuxt.js | 🔵 TypeScript | ♈️ Vue.js | 🅰️ Angular
🚀 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤:
🟢 Node.js | 🚀 Express.js | Nest.js | 🐍 Python | Django | FastAPI | 🔸 Laravel
🚀 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬:
🅿️ PostgreSQL | Ⓜ️ MySQL | ♏️ MongoDB | 💮 Firebase | Vector Databases
🏆 𝐎𝐯𝐞𝐫 𝟏𝟎 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧:
React.js, Next.js, Node.js, Nest.js, Vue.js, Python, Django, FastAPI, AI integrations, DevOps, PostgreSQL, cloud platforms.
⚡ Experienced in building custom SaaS platforms, scalable APIs, business systems, and AI-enhanced products.
✔ Worked with startups and large enterprises globally.
🤖 𝐀𝐈 / 𝐌𝐋 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
✔️ Generative AI & LLM integrations
✔️ AI chatbots & assistants
✔️ AI-powered SaaS features
✔️ Workflow automation & intelligent systems
✔️ Document intelligence & data processing
✔️ API-based AI services
☁️ 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐒𝐞𝐫𝐯𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
✔️ AWS | Google Cloud | Microsoft Azure
✔️ Docker | Kubernetes | CI/CD
✔️ Scalable deployments & monitoring
✔️ Secure APIs & cloud infrastructure
𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬:
✔️ Python, Django, FastAPI
✔️ Node.js, Express.js, Nest.js
✔️ AI system integration & automation
✔️ PostgreSQL, MongoDB, MySQL
✔️ REST & GraphQL APIs
✔️ React, Next.js, Vue.js
✔️ DevOps, Docker, Cloud systems
✔️ Performance optimization & scaling
𝐓𝐲𝐩𝐞𝐬 𝐨𝐟 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐖𝐨𝐫𝐤𝐞𝐝 𝐎𝐧:
✔️ SaaS platforms
✔️ Fintech & business systems
✔️ Marketplaces & CRM platforms
✔️ ERP & automation software
✔️ AI-powered applications
✔️ Internal management systems
✔️ Custom enterprise solutions
𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐋𝐞𝐚𝐝 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 & 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭 | 𝐍𝐨𝐝𝐞 | 𝐏𝐲𝐭𝐡𝐨𝐧 | 𝐀𝐈 / 𝐌𝐋 | 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 | 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 | 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐂𝐮𝐬𝐭𝐨𝐦 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 | 𝐂𝐥𝐨𝐮𝐝 & 𝐀𝐏𝐈 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
$25/hr
100%
Job Success
$200K+ earned
Available now
Start of list.
End of list.
I help SaaS companies, startups, and agencies launch fast, conversion-focused websites and web apps, then make them unmissable with motion and premium brand design. 190+ projects delivered, 100% Job Success, and $200K+ earned on Upwork.
Most clients have to hire a developer and a designer separately. I do all to a professional standard, so your product ships cohesive, on-brand, and on-time; one reliable partner instead of multiple handoffs.
Web Design & Development (my core)
1. Custom websites & marketing sites - Webflow, WordPress, Shopify, Wix
2. Web apps & SaaS dashboards - React, Next.js, Node.js, Typescript
3. Responsive UI/UX design in Figma
4. High-converting landing pages & design systems
Also an expert in:
1. Motion Graphics - brand reveals, explainers, product & social animations
2. Brand Identity - logos, visual systems, marketing collateral, pitch decks
3. Game UI/UX - HUDs, menus, in-game screens & asset kits
Why clients choose me:
✔ 190+ projects delivered · 8,000+ hours · 100% Job Success · Top Rated · $200K+ earned
✔ Design and development in one partner - no handoff gaps
✔ Strategy-led work, not just aesthetics
✔ Fast turnaround, clear communication, reliable long-term
Industries: SaaS & Technology · AI & Automation · FinTech · E-commerce · Real Estate · Healthcare · Education · iGaming
Tell me what you're building - website, web app, animation, brand, or game UI, and I'll tell you exactly how I'd approach it.
Associated with
CT Solutions Private Limited
$100K+
earned
$40/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
Looking for a 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 who can ship production-grade SaaS and AI integrations on time? You're in the right spot.
🏆 𝟭𝟬+ years as a Full Stack Developer (ex-Microsoft Bing, Princeton CS)
📊 $𝟮𝟬𝟬𝗞+ earned on Upwork across 𝟮𝟴 Full Stack Developer projects
🎯 Top Rated Plus with 𝟭𝟬𝟬% Job Success Score
⚡ 𝟲𝟬+ production SaaS and AI integration builds as lead Full Stack Developer
✅ Full Stack Developer for React, TypeScript, Node.js, Python, FastAPI
💼 Ubiquify Digital LLC (Austin, TX) | Full Stack Developer with Princeton CS
⭐⭐⭐⭐⭐ 𝑨𝒘𝒂𝒊𝒔 𝒂𝒏𝒅 𝒕𝒉𝒆 𝒕𝒆𝒂𝒎 𝒅𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 𝒂 𝒄𝒐𝒎𝒑𝒍𝒆𝒙 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 𝒃𝒖𝒊𝒍𝒅 𝒖𝒏𝒅𝒆𝒓 𝒂 𝒕𝒊𝒈𝒉𝒕 𝒕𝒊𝒎𝒆𝒍𝒊𝒏𝒆 𝒘𝒊𝒕𝒉 𝒄𝒍𝒆𝒂𝒏 𝒄𝒐𝒅𝒆, 𝒔𝒕𝒓𝒐𝒏𝒈 𝒂𝒓𝒄𝒉𝒊𝒕𝒆𝒄𝒕𝒖𝒓𝒆, 𝒂𝒏𝒅 𝒓𝒆𝒔𝒑𝒐𝒏𝒔𝒊𝒗𝒆 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒊𝒐𝒏 𝒕𝒉𝒓𝒐𝒖𝒈𝒉𝒐𝒖𝒕. 𝑾𝒐𝒖𝒍𝒅 𝒉𝒊𝒓𝒆 𝒂𝒈𝒂𝒊𝒏 𝒘𝒊𝒕𝒉𝒐𝒖𝒕 𝒉𝒆𝒔𝒊𝒕𝒂𝒕𝒊𝒐𝒏 𝒇𝒐𝒓 𝒂𝒏𝒚 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝒑𝒓𝒐𝒋𝒆𝒄𝒕. (Marcus T., Upwork, 2025)
As a Senior Full Stack Developer with a Princeton Computer Science background and 4 years as a Microsoft Bing engineer, I build production SaaS platforms and AI integrations for founders who need senior-level Full Stack Developer execution. My team and I work at the intersection of Full Stack Development and AI: React and TypeScript frontends, Python and Node.js backends, and AI layers built to hold up under real load. Full Stack Developer-first, agency-grade.
🔶 𝗖𝗥𝗘 𝗗𝘂𝗲 𝗗𝗶𝗹𝗶𝗴𝗲𝗻𝗰𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝟯𝟮𝟱 𝗵𝗿𝘀): Lead Full Stack Developer on a commercial real-estate data platform for a US fund. B2B SaaS, complex data model, React, TypeScript, Python.
🔶 𝗥𝗲𝗮𝗰𝘁 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁 𝗦𝗮𝗮𝗦 ($𝟲𝟮𝗞, 𝟮,𝟬𝟳𝟴 𝗵𝗿𝘀): Full Stack Developer from zero to shipping for a production SaaS build. Full-stack React, TypeScript, Node.js.
🔶 𝗗𝗿𝘆𝗷𝗲𝗰𝘁 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴 𝗧𝗼𝗼𝗹 (𝟰𝟴𝟭 𝗵𝗿𝘀): Full Stack Developer build of an internal ops dashboard with reporting, data pipelines, and automation.
🔶 𝗠𝘂𝗹𝘁𝗶-𝗣𝗿𝗼𝗳𝗶𝗹𝗲 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗦𝗮𝗮𝗦 𝗕𝘂𝗶𝗹𝗱𝘀: Full Stack Developer on multiple AI integration, workflow automation, and SaaS MVPs.
🚀 𝗦𝗮𝗮𝗦 & 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻
✔️ Full Stack Developer for AI integration, agentic workflows, and LLM features
✔️ OpenAI API, Claude API, RAG systems with prompt reliability and context management
✔️ Full Stack Developer on FastAPI, Node.js, Django, Next.js, and PostgreSQL
🔄 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀
✔️ Full Stack Developer for n8n, Zapier, and Make . com at scale
✔️ Full Stack Developer integrations: CRMs, databases, payments, email, AI services
✔️ Idempotent workflows, retry logic, and data consistency across systems
⚡ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗕𝘂𝗶𝗹𝗱𝘀 𝗳𝗿𝗼𝗺 𝗭𝗲𝗿𝗼 𝘁𝗼 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻
✔️ Full Stack Developer on React, TypeScript, Vue.js, Python, MVP to production
✔️ Multi-tenant architecture, auth, permissions, API design
✔️ DevOps and deployment on AWS, Vercel, Railway, and GCP
🎯 𝗪𝗵𝗼 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗮𝘀 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿:
🔹 Founders building Full Stack SaaS products from scratch
🔹 Agencies needing Full Stack Developer capacity on complex builds
🔹 Series A to C startups scaling production systems
🔹 Operators replacing broken workflows with a senior Full Stack Developer
𝗡𝗼𝘁 𝗮 𝗳𝗶𝘁 𝗶𝗳: you need a solo Full Stack Developer for a simple landing page, WordPress theme work, or crypto/trading systems.
💡 𝗛𝗼𝘄 𝘄𝗲 𝘄𝗼𝗿𝗸:
✔️ Day 1-3: Discovery call, architecture doc, and scoped milestones from your Full Stack Developer team
✔️ Week 1: First working increment deployed to staging
✔️ Ongoing: Weekly demos, async updates, documented handoffs from the Full Stack Developer lead
✔️ What you get: Production Full Stack Developer output, full source, handoff docs, direct team access
📞 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗺𝗼𝘃𝗲? Send the job details and we will reply with a scoped plan within 24 hours. Need a Full Stack Developer who ships? Let's talk.
$20/hr
100%
Job Success
Available now
Start of list.
End of list.
𝙈𝙔 𝙏𝙀𝘾𝙃 𝙀𝙓𝙋𝙀𝙍𝙏𝙄𝙎𝙀:
𝗙𝗨𝗟𝗟-𝗦𝗧𝗔𝗖𝗞 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗘𝗥 | 𝗔𝗜 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡 & 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗧 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡𝗦 | 𝗣𝗬𝗧𝗛𝗢𝗡 • 𝗡𝗢𝗗𝗘.𝗝𝗦 • 𝗣𝗛𝗣 • 𝗟𝗔𝗥𝗔𝗩𝗘𝗟 | 𝗥𝗘𝗔𝗖𝗧 • 𝗡𝗘𝗫𝗧.𝗝𝗦 | 𝗔𝗜/𝗠𝗟 | 𝗙𝗟𝗨𝗧𝗧𝗘𝗥 • 𝗥𝗘𝗔𝗖𝗧 𝗡𝗔𝗧𝗜𝗩𝗘 | 𝗪𝗢𝗥𝗗𝗣𝗥𝗘𝗦𝗦 • 𝗦𝗛𝗢𝗣𝗜𝗙𝗬 • 𝗪𝗜𝗫 | 𝗦𝗔𝗔𝗦, 𝗛𝗘𝗔𝗟𝗧𝗛𝗖𝗔𝗥𝗘, 𝗘𝗗𝗧𝗘𝗖𝗛 & 𝗦𝗢𝗟𝗔𝗥 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦 | 𝗗𝗜𝗚𝗜𝗧𝗔𝗟 𝗠𝗔𝗥𝗞𝗘𝗧𝗜𝗡𝗚
I help startups, SaaS companies, SMBs, and enterprises build scalable, secure, and high-performance web, mobile, and AI-powered applications that deliver measurable business results.
With 10+ years of experience, I've developed custom software, SaaS platforms, AI solutions, eCommerce stores, and enterprise applications using modern technologies and industry best practices. My focus is on writing clean, maintainable code, building scalable architectures, and delivering solutions that support long-term business growth.
◐ 𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆
➤ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
● Python (Django, FastAPI)
● Node.js, Express.js
● React.js, Next.js
● PHP, Laravel
● JavaScript, TypeScript
● HTML5, CSS3, Tailwind CSS
● REST APIs & GraphQL
● Microservices Architecture
● MySQL, PostgreSQL, MongoDB
➤ 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
● OpenAI API & ChatGPT Integration
● AI Chatbots & AI Agents
● LangChain & LLM Applications
● Retrieval-Augmented Generation (RAG)
● Prompt Engineering
● Workflow Automation
● NLP Solutions
● AI-Powered Business Applications
➤ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
● Flutter
● React Native
● Cross-Platform iOS & Android Apps
● Firebase
● Real-Time Applications
● Payment Gateway Integration
● Push Notifications
● Google Maps & Location Services
➤ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 & 𝐒𝐡𝐨𝐩𝐢𝐟𝐲
● Custom WordPress Development
● WooCommerce Development
● Shopify Store Development
● Shopify Theme Customization
● Theme & Plugin Development
● Speed Optimization
● Technical SEO
● Conversion Rate Optimization (CRO)
➤ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬
● Docker
● AWS
● Google Cloud Platform (GCP)
● CI/CD Pipelines
● Git & GitHub
● Vercel
● DigitalOcean
● Nginx
● Performance Optimization
● Security Best Practices
➤ 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬
● Stripe
● PayPal
● Twilio
● Firebase
● OpenAI
● Google APIs
● Supabase
● HubSpot
● Zapier
● Make (Integromat)
● Monday
● Third-Party APIs
➤ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
● 10+ Years of Professional Experience
● Clean, Scalable & Maintainable Code
● Business-Oriented Development Approach
● Fast & Clear Communication
● Reliable Delivery with Attention to Detail
● Strong Problem-Solving Skills
● Long-Term Technical Support
● High-Quality, Future-Proof Solutions
Whether you need a custom web application, SaaS platform, AI-powered solution, mobile app, WordPress website, Shopify store, API integration, or enterprise software, I can help transform your ideas into secure, scalable, and high-performing products.
I believe in building long-term partnerships by delivering quality work, transparent communication, and solutions that create real business value.
𝐋𝐞𝐭'𝐬 𝐛𝐮𝐢𝐥𝐝 𝐬𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐞𝐱𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐚𝐥 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫.
$25/hr
99%
Job Success
$600K+ earned
Start of list.
End of list.
Award-winning IT professional with 16+ years of experience delivering AI-powered mobile apps, Web apps, IoT platforms, and enterprise software. **Microsoft Best App Award 2025 winner.** Helping companies build scalable, high-performance digital solutions.
📢Our Services🏆
==============
✅Mobile App Development
---------
🔵 iOS (iPhone, iPad) - Swift and Objective-C
🔵 iBeacon app/BLE App
🔵 Android (App, Tablet ) - Java and Kotlin
🔵 Cross-Platform
🔵 Flutter
🔵 React Native
🔵 Xamarin
🔵 Ionic
✅Web App Development
---------
🟠 Enterprise app development
🟠 Web-based software app development
🟠 Rich Internet application development
🟠 Social networking app development
🟠 E-Learning app development
🟠 Cloud-based web app
✅Apps for Wearable Devices
---------
⌚ Apple Watch
⌚ Android Wear
✅Apps for Native Desktop
---------
🖥️ Mac OS
🖥️ Universal Windows Platform (UWP)
🖥️ Windows Forms Desktop App
🖥️ Electron App
✅Open Source Development
---------
ElectronJS, Python, NodeJS, ReactJS, NextJS, NustJS, Typescript, PHP, Laravel, Code Igniter, WordPress, Magento, Joomla, CakePHP, Java, WebRTC, Mean Stack, Machine learning, AI, AR/VR, Shopify certified developers.
✅Website and Online Branding
---------
🟤 SEO & SEM web promotion services
🟤 Social Media Marketing
🟤 ASO
🟤 QA & Testing
✅Design Services & Theme Customisation
---------
🖌️ Photoshop & Illustrator for 2D/3D/UI/UX design
🖍️ HTML5, CSS3, JavaScript, Angular, React, Bootstrap for Web design
📝 Theme Customisation
✅APIs & Integrated Features
---------
◾ Payment APIs
◾ Google Maps
◾ Google Places
◾ Google Analytics
◾ YouTube
◾ Social Media
◾ MINDBODY
◾ Push Notifications
✅Domains
---------
📍 EV (Electric Vehicle)
🎮 Gaming
💻 e-Commerce & Retail
👫 Social & Dating
💻 Enterprise Apps
📍 Location-based services
👕 Fashion and Lifestyle
🌆 Real Estate
🧳 Tourism & Travel
🧾 Marketplace
📢 On-Demand Apps
📞 VoIP
✅Other Expertise
---------
🔻 Stripe SDK for Apple Pay
🔻 Watch SDK for wearable devices
🔻 AWS service for image, video uploading, and downloading
🔻 JSON parsing
🔻 XML parsing
🔻 Asterisk, FreePBX, SIP
🔻OCPP Solution
#PowerDNS
List of concepts of AI/ML we can work on.
================================
* Classification (Text, Image)
* Predictive Analytics
* Object Detection
* NLP
* Gen AI
* LLMs
* RAG
* TTS (text-to-speech)
* STT (speech-to-text)
* Vector Database (Chromadb, Faiss, Pinecone)
* Similarity Search
Models / Architecture We have utilized it till now.
=====================================
Open-source models
-------------------------
#META Llama model family
#Mistral
#Openai-Whisper
#Vosk
#Microsoft Phi
#Suno
#Salesforce blip-image-captioning
#BERT
#Transformers
#Coqui
#YOLO model family
#Spacy models
Paid Model
--------------
#Openai ChatGPT
#anthropic claude
#google Gemini
#DALL-E
🏆Awards and Recognition🏆
---------
🏆Proud recipient of the GESIA Award for the Best Mobile App Development Company-2015
🏆Listed by Silicon India Magazine as one of the Top 10 Best Startups in Mobile Application Services- 2016.
🏆Business Excellence Award for WebRTC product development- 2022
📢Accomplishments
---------
🔎 750+ mobile apps and 1500+ projects to 750+ satisfied clients across the globe
🔎 50,000+ hours of work done on Upwork
🔎100% job success rate
✅Tools
---------
- We use Project Management System Basecamp to effectively manage your
- Bug Tracking with JIRA
- Immediate response to your queries on PMS, IMs, or Phone calls.
- Can work in different time zones
📊Our Business Model
---------
- Time and Material
- Fixed Price
- Hire dedicated developers
📢Why choose Moon Technolabs?🏆
---------
- We have a robust tech team that can deliver complete solutions, at a quick turnaround time and at the most affordable rates. Our App solutions cover not just design and development but also include free publishing in-app stores.-
- With close to a decade of industry experience, well-defined quality processes, and quick adaptability to changing needs, we constantly strive to deliver Customer-centric solutions, at world-class quality.
📞 Get in touch with us today, to know more about how we can help you become bigger and better!
Associated with
Moon Technolabs Pvt. Ltd.
$30/hr
100%
Job Success
Start of list.
End of list.
Transforming manual business processes into modern Microsoft 365 solutions that save time, improve collaboration, and drive productivity.
With 16+ years of experience, I help businesses design, build, and modernize Microsoft solutions that simplify operations, automate repetitive work, and create secure digital workplaces. From startups to enterprise organizations, I deliver scalable solutions that solve real business challenges not just technical requirements.
What I Can Help You With
✅ Modern SharePoint Intranets & Employee Portals
✅ Document Management Systems (DMS)
✅ SharePoint Online Development & SPFx Solutions
✅ Microsoft 365 Setup, Governance & Migration
✅ Power Apps (Canvas, Model-Driven & Power Pages)
✅ Power Automate Workflow Automation
✅ Power BI Dashboards & Reporting
✅ Microsoft Teams & Microsoft Graph Integration
✅ ASP.NET Core, .NET & Azure Development
✅ Microsoft Copilot, Copilot Studio & AI Solutions
Business Solutions I Build
• Employee Portals
• Customer & Vendor Portals
• HR & Employee Onboarding Systems
• Document & Contract Management
• Purchase Request & Approval Systems
• Asset & Inventory Management
• Help Desk & Service Request Portals
• Inspection & Field Service Applications
• Knowledge Management Portals
• Custom Enterprise Applications
Microsoft Technologies
Microsoft 365 • Office 365 • SharePoint Online • SharePoint Server • SharePoint Framework (SPFx) • Microsoft Teams • OneDrive • Microsoft Lists • Power Platform • Power Apps • Power Automate • Power BI • Dataverse • ASP.NET Core • .NET • C# • React • SQL Server • Azure • Azure Functions • Azure Logic Apps • Microsoft Graph API • Microsoft Entra ID • Microsoft Copilot • Copilot Studio • Azure OpenAI
Services
✔ SharePoint Development & Customization
✔ SharePoint Migration & Modernization
✔ Classic to Modern SharePoint Migration
✔ Microsoft 365 Consulting
✔ Power Platform Development
✔ Workflow Automation
✔ Business Process Automation
✔ Azure Cloud Development
✔ Enterprise Application Development
✔ Third-Party API Integration
✔ Ongoing Support & Enhancements
I have delivered Microsoft solutions across Healthcare, Construction, Manufacturing, Legal, Financial Services, Government, Education, Logistics, Real Estate, Facilities Management, and Professional Services, helping organizations improve efficiency, reduce manual effort, and build secure, scalable business applications.
Whether you need a new SharePoint intranet, automate approvals with Power Automate, build a custom Power App, migrate to Microsoft 365, develop an SPFx solution, or implement AI-powered business automation, I can help you choose the right approach and deliver a solution built for long-term success.
Looking for a reliable Microsoft 365 Consultant, SharePoint Expert, SPFx Developer, Power Platform Developer, Power Apps Developer, Power Automate Expert, Azure Developer, or .NET Developer? Let's discuss how we can build a solution that supports your business today and scales for tomorrow.
Associated with
Treta Infotech Private Limited
$40/hr
100%
Job Success
$300K+ earned
Start of list.
End of list.
Gurmukh S.
has worked
.
One of my clients grew revenue 500% after I rebuilt their core algorithm. Another called a $500K research platform I led the "gold standard" in their industry. That's the bar I work to on every project.
I build AI-powered web and mobile apps from idea to production. For startups and scale-ups in healthcare, fintech, SaaS, and eCommerce.
What makes me different from most full stack developers: I own the entire AI layer too. Not just connecting an API and calling it done, but designing RAG pipelines, LLM chatbots, OpenAI-backed features, and AI automation workflows that solve real business problems all inside production-grade React Native, React, and FastAPI apps.
What I build for clients:
→ AI chatbots and assistants (OpenAI, LangChain, RAG, Pinecone)
→ AI-powered mobile apps (React Native, Flutter, iOS, Android)
→ SaaS platforms, MVPs, and full stack web apps
→ RAG systems: chat with documents, internal knowledge bases
→ REST APIs, microservices, and scalable backend architecture
→ Payment integrations (Stripe, Twilio) and cloud deployment (AWS, Docker)
Industries I know deeply: healthcare, fintech, eCommerce, SaaS, edtech, logistics.
𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞. 𝟗,𝟕𝟎𝟎+ 𝐡𝐨𝐮𝐫𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤. 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞. 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬.
If you're building something that needs AI to actually work in production, not just a demo. 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤.
Associated with
NetSet Software Solutions
$2M+
earned