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$10/hr
100%
Job Success
$1K+ earned
Offers consultations
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Most startups, founders, and growing businesses already know what they want to build. The challenge is finding a Senior Full Stack Developer who can take ownership of the product, from architecture and MVP planning to frontend development, backend infrastructure, API integration, cloud deployment, automation, and long-term scalability.
I help startups, SaaS companies, agencies, and established businesses build modern web applications, SaaS platforms, AI-powered products, CRM systems, business software, marketplaces, customer portals, booking platforms, admin dashboards, automation platforms, Chrome extensions, and mobile applications using production-ready technologies.
My primary expertise includes React.js, Next.js, TypeScript, JavaScript, Node.js, Express.js, NestJS, PostgreSQL, MongoDB, Supabase, Firebase, AWS, Docker, Vercel, Tailwind CSS, Stripe, REST APIs, AI Integration, Workflow Automation, and Cloud Infrastructure.
As a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, Backend Engineer, API Integration Developer, and AI Developer, I build scalable applications that combine exceptional user experiences with secure backend systems and reliable infrastructure.
Whether you need to build an MVP, modernize an existing application, automate business workflows, integrate AI into your product, or scale an enterprise platform, I can help transform your vision into production-ready software.
What I Build
✔ SaaS Platforms & Multi-Tenant Applications
✔ Startup MVP Development
✔ AI Applications & AI Integration
✔ AI Chatbots & AI-Powered Business Tools
✔ CRM Systems & ERP Solutions
✔ Business Software & Internal Platforms
✔ Customer Portals & Admin Dashboards
✔ Marketplace Platforms & B2B Marketplaces
✔ Booking & Reservation Systems
✔ Financial Platforms & FinTech Applications
✔ Healthcare & Telehealth Platforms
✔ Real Estate Platforms
✔ Mobile Applications (React Native & Flutter)
✔ Chrome Extensions & Browser Extensions
✔ Web Automation & Workflow Automation
✔ API Integration & Third-Party Integrations
✔ Payment Systems (Stripe, PayPal, Webhooks)
✔ Cloud Deployment & DevOps
Core Technical Expertise
Frontend Development
React.js • Next.js • TypeScript • JavaScript • HTML5 • CSS3 • Tailwind CSS • Redux • React Query • Responsive UI Development • Front-End Development
Backend Development
Node.js • Express.js • NestJS • REST API Development • API Architecture • Authentication • Authorization • JWT • OAuth • Backend Infrastructure • Serverless Functions
Database Development
PostgreSQL • MongoDB • Supabase • Firebase • MySQL • Database Design • Database Optimization
AI Development & Automation
AI Development • AI Integration • OpenAI API • Claude API • AI Applications • AI Platform Development • AI Chatbots • Workflow Automation • Business Process Automation • AI-Powered SaaS
Cloud & DevOps
AWS • Docker • Vercel • Cloudflare • CI/CD • GitHub Actions • Deployment • Cloud Infrastructure • Performance Optimization
Payments & Integrations
Stripe Integration • PayPal • Third-Party APIs • REST APIs • Webhooks • API Integration
Industries I've Worked With
SaaS • FinTech • Healthcare • Telehealth • E-commerce • Education • Manufacturing • Real Estate • CRM • ERP • Recruitment • Marketplace Platforms • Booking Systems • Marketing Platforms • Business Automation
Why Clients Hire Me
I don't just build features, I help build products that are scalable, secure, maintainable, and ready for growth.
Clients value working with me because I provide:
• Clean, production-ready code
• Scalable software architecture
• Strong frontend and backend engineering
• Reliable API integration
• Secure authentication and authorization
• Optimized PostgreSQL and MongoDB database design
• AI integration and automation expertise
• Cloud deployment and infrastructure support
• Clear communication and transparent progress updates
• Long-term technical partnership
Whether you already have Figma designs, an existing codebase, or just an idea on paper, I can help you build a modern web application, SaaS platform, CRM, AI product, automation system, marketplace, Chrome extension, or mobile application from concept to production.
If you're looking for a Senior Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, Backend Engineer, SaaS Developer, AI Developer, API Integration Developer, CRM Developer, Automation Engineer, or long-term technical partner, I'd be happy to discuss your project and recommend the best technical approach.
Olubanjo A.
has worked
.
$18/hr
100%
Job Success
$2K+ earned
Available now
Start of list.
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Hi! 🙌
I'm a Full-Stack JavaScript Developer with real-world experience building modern web and mobile products for businesses and startups 💼🚀
I help clients transform ideas into ready-made, scalable solutions that deliver results, not just "pretty code."
My approach isn't just programming.
I always think as a business partner, not just an implementer.
🔥 What I can build for you:
✅ Business Websites & Landing Pages
✅ SaaS Platforms & Dashboards
✅ Marketplaces & E-commerce Stores
✅ CRM / ERP Systems
✅ Web3 & FinTech Platforms
✅ Booking & Reservation Systems
✅ Admin Panels & Backoffice
✅ Social Platforms & Communities
✅ Mobile Apps (iOS / Android)
✅ Startup MVPs (from idea to launch)
🛠️ Tech Stack
⚡ Core:
JavaScript • TypeScript • HTML • CSS • SCSS
🎨 Frontend:
React • Next.js • Redux Toolkit • Hooks • Framer Motion
Material UI • Styled Components • TailwindCSS • Axios
📱 Mobile:
React Native (Expo)
🧪 Testing & API:
Postman
⚙️ Backend:
Node.js • Express.js • Prisma • Mongoose • JWT • Sessions
🗄️ Databases:
MongoDB • PostgreSQL
🔧 Tools & DevOps:
Git • Docker • Docker Compose • ESLint • Prettier • Figma
🚀 Why clients choose me:
✔️ Clean & scalable code
✔️ Pixel-perfect UI/UX
✔️ Fast communication
✔️ On-time delivery
✔️ Business-oriented mindset
💬 Ready to build something amazing?
Let’s discuss your project today! 👇🔥
Associated with
Incode Group
$900K+
earned
$24/hr
100%
Job Success
$1K+ earned
Offers consultations
Start of list.
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Struggling with slow product launches or unreliable web applications? With 4+ years of full-stack expertise, I help startups and enterprises build scalable SaaS, AI, and real-time apps using MERN, Next.js, and leading cloud platforms. My solutions are engineered for rapid deployment, clean architecture, and measurable business outcomes, enabling you to scale and automate with confidence.
What I Deliver
End-to-End SaaS Platforms: Robust subscription systems, scalable analytics dashboards, multi-tenant architectures, all with guaranteed uptime.
• Advanced Real-Time Applications: Business insights and instant updates through Supabase, Firebase, and WebSockets.
• Powerful API & System Integrations: REST, GraphQL, Stripe, WhatsApp, Shopify, Google APIs—streamlining your automation and third-party connections.
• AI & Automation: Customized chatbots, smart workflows, & recommendation tools for next-gen user experience.
• Data-Driven Admin Portals: Intuitive dashboards for analytics, workflow management, and business operations at scale.
Why Clients Choose Me:
• Fully aligned with your business outcomes—not just code delivery.
• Architect scalable, secure, and maintainable solutions for long-term growth.
• Clear, structured communication and delivery processes for predictable results.
• 4+ years of hands-on experience in SaaS, e-commerce, AI, and automation across various industries.
• Proven success: Faster launches, reduced operational friction, and efficient scaling for clients worldwide.
Achievements:
- Engineered SaaS systems supporting 10,000+ users with 99.9% uptime, trusted by top startups.
• Created real-time reporting dashboards, slashing delays by 40% and boosting actionable insights.
• Designed and automated billing/subscription workflows, raising engagement & conversions.
• Integrated complex third-party APIs, optimizing efficiency by up to 35% for clients.
Tech Stack:
- Frontend: React.js, Next.js, Tailwind CSS, Material UI, HTML5, CSS3, TypeScript
- Backend: Node.js, Express.js, Nest.js, Python
- Databases: MongoDB, PostgreSQL, MySQL, Redis, Supabase
- DevOps & Cloud: AWS, CI/CD, Vercel, Netlify
- APIs & Integrations: REST, GraphQL, Stripe, WhatsApp Cloud API, Shopify, Google APIs
Industries Served:
SaaS, E-Commerce, AI-Powered Platforms, Real-Time Apps, Marketplaces, Healthcare, FinTech
How We Work Together:
I partner with clients to turn ideas into high-performing products. From strategy and architecture to deployment and scaling, I provide end-to-end expertise. Every project comes with structured communication, clear timelines, and a roadmap to success.
Ready to launch a scalable, reliable, and growth-ready product? Click “Invite to Job” or message me today to discuss your project and map out the fastest path to success.
keywords: mern stack developer | full stack javascript developer | mern developer | react js developer | react developer | next js developer | nextjs | node js developer | nodejs | express js | expressjs | nest js developer | nestjs | typescript developer | javascript engineer | mongo db | mongodb | postgres | postgresql | mysql | prisma | rest api development | restful api | graphql api | api integration | microservices architecture | web sockets | websocket real time apps | real time notifications | chat application developer | saas platform development | marketplace platform | ecommerce website | headless commerce | server side rendering ssr | static site generation ssg | jwt authentication | oauth2 authorization | docker containerization | aws amazon web services | s3 ec2 lambda | ci cd pipelines | continuous integration | continuous deployment | tailwind css | material ui | shadcn ui | redux toolkit | context api | zustand state management | react hook form | zod validation | unit testing | integration testing | performance optimization | code refactoring | clean architecture | scalable backend | cloud deployment | github actions | firebase backend | supabase | redis caching | bull mq message queue | webhook integration | workflow automation | crm system | appointment scheduler | whatsapp cloud api | meta api | facebook graph api | google api integration | shopify app development | woocommerce integration | seo optimization | responsive design | progressive web app pwa | stripe payment integration | paypal integration | razorpay | multi tenant architecture | i18n internationalization | analytics dashboard | admin panel | role based access control rbac | data visualization charts graphs | file upload pdf generation | document management | chatbot builder | ai assistant integration | serverless architecture | design system | reusable components library | version control git github | agile development | api documentation swagger postman | devops practices | high performance scalable applications | backend developer | frontend developer | software engineer
Danish S.
has worked
.
$15/hr
100%
Job Success
$4K earned
Available now
Start of list.
End of list.
Are you looking to build a modern web application, an AI-powered product, or an automated workflow that saves time and scales your business?
You’re in the right place.
I’m a Full Stack MERN Developer and AI Engineer specializing in RAG systems, AI agents, and workflow automation. I help startups and growing businesses build scalable, production-ready applications and AI-driven systems that deliver real business value.
I focus on clean architecture, performance, and long-term maintainability, not just quick demos.
WHAT I CAN HELP YOU WITH
🔹 AI & LLM Solutions
• AI chatbots and assistants for web apps, internal tools, and support systems
• Retrieval-Augmented Generation (RAG) systems
• Multi-step AI agents with tools, memory, and logic
🔹 Automation & Workflow Orchestration
• Business process automation using n8n, Make, and Zapier
• AI-powered lead handling and reporting
• Reducing manual work and operational costs
🔹 Full Stack MERN & SaaS Development
• Modern frontends using React.js and Next.js
• Backend APIs with Node.js, Express, and Nest.js
• Authentication systems, dashboards, and admin panels
• SaaS MVP to production-ready platforms
• API integrations and performance optimization
⚙️ TECH STACK & TOOLS
🔹 Frontend
• React.js, Next.js, TypeScript
• Tailwind CSS, Redux Toolkit
• Responsive and performance-focused UI
🔹 Backend
• Node.js, Express.js, Nest.js
• REST APIs and secure authentication
• MongoDB and PostgreSQL
🔹 AI & Automation
• OpenAI APIs, embeddings, and RAG pipelines
• n8n, Make, and Zapier automation
🔹 DevOps & Deployment
• Docker and Git
• AWS and Vercel
• Scalable, production-ready deployments
🤝 HOW I WORK
• Clear communication and regular updates
• Clean, maintainable, and scalable code
• Business-first mindset, not just features
• Long-term support and reliability
I don’t just write code, I build systems that work for your business.
📩 LET’S GET STARTED
If you’re building an AI-powered product, automation system, or MERN-based SaaS, I’d be happy to discuss your idea and help you move forward efficiently.
👉 Send me an invite and let’s talk.
Full Stack MERN Developer, AI Engineer, AI Developer, LLM Integration, RAG Engineer, AI Agents, Workflow Automation, n8n Expert, SaaS Developer, React Developer, Next.js Developer, Node.js Developer, API Integration, Chatbot Developer, Automation Engineer
$15/hr
100%
Job Success
$90K+ earned
Start of list.
End of list.
I possess a Master’s Degree in Computer Software Engineering, I bring forth over 10 years of immersive experience in the dynamic realms of web design and development. My journey has traversed diverse industries, where I've seamlessly blended innovation with functionality for businesses ranging from petite enterprises to medium-sized entities and large corporations. My toolkit includes the mastery of PHP, WordPress, Webflow, Laravel, HTML5, CSS, Bootstrap, jQuery, and the fine art of SEO.
Whether you're a burgeoning startup, a well-established business, or in pursuit of an MVP, rest assured you'll receive top-notch services at a cost that won't break the bank.
✦My primary expertise encompasses:
• PHP / MySQL
• HTML5, CSS3, JavaScript
• MEAN and MERN stack (MongoDB, Express, NodeJS, React/Angular)
• CMS Development (WordPress, Webflow, Shopify)
• Framework (CodeIgniter, YII, Laravel, Phalcon, CakePHP)
• Responsive design (Bootstrap, Foundation Zurb)
• Seamless payment gateway integration (Stripe, Paypal, Braintree, etc.)
• Quality services tailored to your needs are guaranteed.
✦Engaging with Me:
Accessible Around the Clock: Find a time that suits you best – no need to rearrange your busy life or work schedule.
Your Preferred Communication: Choose how we connect; whether by email, phone, or Skype – whatever suits your preference!
With over a decade of experience in designing and developing websites and web applications, I possess a profound understanding of how technology can seamlessly align with both business requirements and customer needs.
My passion lies in working on websites, a commitment I've upheld every single day for the past 10+ years. I operate with speed, efficiency, and a meticulous eye for detail, always online and ready to contribute.
I'm eager to assist with any web development, customization, or maintenance tasks and am happy to address any questions you may have.
Building lasting relationships with clients is a priority for me, making long-term projects my primary focus.
I eagerly await the opportunity to connect with you!
Best regards,
Nayana
Nayana K.
has worked
.
Associated with
Sparkle Infotech
$20/hr
100%
Job Success
$20K+ earned
Available now
Start of list.
End of list.
WordPress Developer | Webflow Developer | Shopify | API Integrations
I build websites that do more than just look good. My focus is on creating clean, responsive, high-performing websites that feel polished on the front end and work reliably behind the scenes.
I work across WordPress, Webflow, Shopify, WooCommerce, and custom API integrations, helping businesses build websites, landing pages, e-commerce stores, booking flows, automation systems, and custom web solutions that are easy to use, fast, and built to scale.
Over the years, I’ve worked on everything from custom WordPress builds and WooCommerce stores to Webflow websites, Shopify storefronts, payment integrations, and third-party API connections. I enjoy the technical side of development, but I also care about the user experience, conversion flow, performance, and long-term maintainability of the site.
Core API & Integration Experience
Payment APIs: Stripe, PayPal, Square
I build secure checkout flows, subscription billing systems, payment tracking, and custom transaction workflows.
Messaging & Communication APIs: Twilio, Slack, WhatsApp Business API
I help businesses automate SMS notifications, chat workflows, customer alerts, and communication systems.
Social Media APIs: Facebook Graph API, Twitter/X API, LinkedIn API
I create integrations for campaign automation, analytics, social sharing, and platform connectivity.
Maps & Location APIs: Google Maps, Mapbox
I build location-based features such as store locators, geolocation, routing, and real-time tracking.
Cloud Service APIs: AWS, Azure, Google Cloud
I integrate scalable cloud storage, backend services, and microservice-based workflows.
E-commerce APIs: Shopify, WooCommerce, Magento
I work on inventory sync, order automation, custom product features, storefront enhancements, and backend integrations.
Banking & Fintech APIs: Open Banking APIs, Plaid
I support secure account verification, payment flows, and financial data integrations.
Web Development Services
I can help with:
Custom WordPress websites
Webflow websites and landing pages
Shopify and WooCommerce stores
Custom theme and plugin development
API integrations and webhooks
Payment gateway setup
Website speed optimization
SEO-friendly structure
Bug fixing and troubleshooting
Server, hosting, and deployment issues
Multilingual website setup
Automation workflows using Zapier, Make, REST APIs, and webhooks
WordPress, Shopify & Webflow Skills
Fully responsive websites for desktop, tablet, and mobile
Cross-browser compatibility
WooCommerce and Shopify customization
Shopify Liquid development
Elementor, Bricks, Divi, and custom WordPress builds
Webflow Designer, CMS, interactions, and animations
Secure payment gateway integration
Performance tuning and speed optimization
Theme and plugin customization
Ongoing maintenance and technical support
My Toolkit
CMS & Platforms: WordPress, Webflow, Shopify, WooCommerce
Frontend: HTML5, CSS3, JavaScript
WordPress Builders: Elementor, Bricks, Divi
Shopify: Liquid, custom sections, product pages, checkout-related customization
Integrations: REST APIs, Webhooks, Zapier, Make, Mailchimp, Salesforce
E-commerce: WooCommerce, Shopify, Magento
Whether you need a custom API integration, a secure e-commerce setup, a high-converting landing page, or a complete website built from scratch, I bring a practical and structured approach to every project.
I’m comfortable working independently with minimal direction, but I can also join an existing team, understand the workflow quickly, and contribute without slowing things down.
If you need a WordPress Developer, Webflow Developer, or Shopify developer who can handle both design-focused builds and technical integrations, send me a message and let’s discuss your project.
Anum T.
has worked
.
$20/hr
100%
Job Success
$20K+ earned
Available now
Offers consultations
Start of list.
End of list.
✅ 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 ✅ 1200+ 𝐡𝐫𝐬 ✅ AI Expert ✅ 38+ 𝐓𝐨𝐭𝐚𝐥 𝐉𝐨𝐛𝐬 ✅ 𝟓 𝐒𝐭𝐚𝐫𝐬
As an experienced developer with over 9 years of expertise, I specialize in AI integration, including Low-code , No-code , RAG, Agentic Ai, Ai Agents, Loveable.dev , CRM integration , DeepSeek, OpenAI API and ChatGPT implementations. My extensive skills encompass fine-tuning AI models for custom solutions, leveraging the power of OpenAI's API for advanced functionalities. In web development, I utilize the MERN, MEAN, and LAMP stacks, successfully delivering over 100 projects globally.
My proficiency in integrating Node.js, React, MongoDB, Laravel, PHP, and MySQL further enhances backend and frontend development to boost performance and scalability.
Main Skills
=========
• AI Integration: OpenAI, Generative AI, ChatGPT, GPT-4, OpenAI API, Microsoft Copilot Studio🤖
• NodeJS
• ReactJS (React Hooks, Redux Toolkit)
• NextJS
• AWS Cloud Solutions EC2/S3/Route53
• Firebase | MySQL | MongoDB
• Twilio API
• PHP & Laravel
• API Integration (Facebook, Twitter, Google)
• Low-code | No-code
• CRM integration (GHL , HubSopt , SalesForce)
• Full-Stack Development (Frontend & Backend)
I also specialize in WordPress and Wix CMS, crafting visually appealing and high-performing websites that align with your business objectives.
CMS
====
• WordPress Development and Customization
• Wix Design and Development
TOOLS
======
• Visual Studio Code
• Jira | Trello | GitHub | BitBucket
• AWS & MongoDB Management Tools
• Postman, Vercel, NextAuth.js
• Google Gemini & Microsoft Copilot
PERSONAL SKILLS
================
• Commitment to Quality Work
• Efficient and Timely Delivery
• Strong Team Collaboration
• Rapid Technical Adaptability
• Ensuring High Customer Satisfaction
I'm passionate about collaborating with startups to deliver innovative AI solutions, especially using OpenAI’s ChatGPT API and DeepSeek for cutting-edge projects. Let’s connect to discuss how my expertise can elevate your project to the next level. 🙋🏻♂️
KEYWORDS
==========
GPT-4, OpenAI API, ChatGPT API Integration, AI Solutions, Fine-Tuning, Full Stack Developer, Web Development, MERN Stack, LAMP Stack, AI Integration, Generative AI, DeepSeek, low-code , no-code , Loveable ,
Large Language Models (LLMs), GPT-4 Implementation, OpenAI LLM Integration, AI Text Generation, Natural Language Processing (NLP) Expert, AI-Powered Chatbots, Custom AI Models with LLMs, LLM-based Automation, AI Content Creation with LLMs, LLM Fine-Tuning and Deployment.
LangChain Developer, LangChain Framework Integration, LangChain with GPT-4, Advanced AI Workflows with LangChain, LangChain API Integration, LangChain for LLM Applications, LangChain Tools and Memory Systems, Automating Tasks with LangChain, Custom AI Solutions using LangChain, LangChain AI App Development.
Abdul R.
has worked
.
$20/hr
100%
Job Success
$4K+ earned
Offers consultations
Start of list.
End of list.
Here are the types of clients I help with my services
If you are looking to build a custom software, or if you already have one but need improvements in performance, SEO, or adding new features, I can help.
Most ideas fail not because the idea is bad, but because the execution is weak. You need someone who can deeply understand your idea and turn that thinking into performant, scalable software without needing constant explanations.
I work with startup founders and early-stage businesses who need:
• MVP development from scratch
• SaaS product architecture
• Performance optimization
• SEO improvements
• AWS cost reduction
• Feature expansion based on real user feedback
Here is a short case study where I delivered an enterprise-level project that generated 2k+ clicks, 200k+ impressions, and $10k+ earnings within just two months of full launch.
The short story is the client already had a project, but it had performance issues, poor SEO, and an expensive AWS setup. After analyzing the project, I offered a solution. The client agreed, and within just one month, I created a better version that stood out in the market. Within just two months of launch, the client gained 300+ users, 200k+ impressions, and $10k+ in earnings. We're still working on adding new features to the website based on user feedback and market needs.
When clients come to me, I deeply analyze their requirements, check competitor sites, and think as a user about what they actually need and expect. Based on that, I provide a solution that is not only technically strong but also strong in terms of user flow.
I can make a new website from scratch or improve your existing one. I focus on making your website do more than just exist. It should help you get results, engage users, save time, and turn visitors into loyal customers.
About me, I am a full-stack JavaScript developer skilled in building user-friendly websites, scalable APIs, and custom web solutions. My focus is on delivering clean, well-optimized code, meeting deadlines, and ensuring clear communication with clients.
What I Offer:
✅ Frontend: React.js, Next.js, Redux Toolkit, Zustand, Formik, Tailwind CSS, Bootstrap, MUI
✅ Backend: Node.js, Express.js, Nest.js, Fastify, TypeScript
✅ Real-Time Communication: WebSockets, SocketIo
✅ Databases: PostgreSQL, MySQL, MongoDB, Redis
✅ ORM: Prisma, Knex, Sequelize, Mongoose
✅ Authentication & Security: OAuth, JWT, Auth0, Google Auth, Passport.js, Firebase Auth
✅ Payments & Subscriptions: Stripe, PayPal, Paddle, In-app purchases
DevOps, Cloud & Deployment:
✅ Cloud Platforms: AWS (EC2, S3, Route 53, CloudFront, Lambda), DigitalOcean, Firebase
✅ Hosting & Domains: Nginx, cPanel, Vercel, Netlify, Cloudflare
✅ CI/CD & Automation: GitHub Actions, Bitbucket Pipelines, Docker, Kubernetes
✅ Monitoring & Logging: PM2, Winston Logger
Third-Party Integrations & Services:
✅ AI & NLP: OpenAI (GPT-4)
✅ Communication APIs: Twilio, RingCentral, SendGrid, Mailgun, SMTP
✅ File Handling & Media Processing: AWS S3, Multer, Cloudinary, FFmpeg, Sharp
Other Expertise:
✅ Unit Testing: Jest, Chai, Mocha
✅ Authentication: Auth0, Authentik, Google Auth
✅ Documentation: Swagger OpenAPI
✅ Version Control: Git, GitHub, Bitbucket
✅ Project Management: Jira, Trello
✅ UI Frameworks: HTML5, CSS, SCSS, Tailwind CSS, Bootstrap, MUI
Why Work with Me?
• Experience with complex projects, third-party integrations, and performance optimization.
• Proven experience in managing multiple tasks and delivering results.
• Dedicated to providing high-quality work that fits your needs and timeline.
• 5-Star Upwork Reviews for delivering solutions that meet expectations.
I can take development ownership of your project from start to launch, review customer feedback, and improve features accordingly.
As per my work experience, I believe that strong communication, proper planning, and continues commitments are the keys to success in any project. I will happily put all my skills to use for your project's success.
Kind wishes,
Harshil Dudhat
Harshil D.
has worked
.
$20/hr
100%
Job Success
$8K+ earned
Start of list.
End of list.
I build production-grade AI systems that solve real business problems not proof-of-concept demos that break under load.
With 5+ years of professional experience as an AI Engineer, I've designed and shipped agentic AI pipelines, multi-agent orchestration systems, LLM-powered SaaS applications, RAG knowledge bases, and computer vision solutions across industries. My work is grounded in software engineering fundamentals: clean architecture, scalable backends, rigorous testing, and reliable deployments.
AGENTIC AI & MULTI-AGENT SYSTEMS
My primary focus. I architect autonomous AI systems using LangGraph, LangChain, CrewAI, and AutoGen systems that plan, reason, use tools, and complete multi-step tasks without human intervention.
→ Multi-agent orchestration with LangGraph and CrewAI
→ RAG pipelines with Pinecone, Chroma, Weaviate, and pgvector
→ Tool-calling agents integrated with CRMs, REST APIs, and databases
→ Long-term memory and stateful agent workflows
→ Autonomous research, decision-making, and outreach agents
→ Human-in-the-loop escalation and agent monitoring
GENERATIVE AI & LLM DEVELOPMENT
I work with the full spectrum of foundation models and build reliable LLM-powered features for production environments
→ Custom LLM applications using GPT-4o, Claude, Gemini, Groq, Mistral, and Llama
→ Retrieval-Augmented Generation (RAG) with hybrid search and reranking
→ Fine-tuning and advanced prompt engineering for accuracy at scale
→ Document intelligence: structured extraction from PDFs, Word, and unstructured data
→ LLM evaluation frameworks and production monitoring
→ Semantic search and vector similarity systems
AI CHATBOTS & CONVERSATIONAL AI
→ Website chatbots for lead capture and qualification
→ WhatsApp AI agents for bookings and support
→ SMS two-way communication agents
→ Context-aware human handoff with live CRM access
→ Multilingual conversational AI systems
→ Voice + text hybrid agents
AI Backend Architecture & API Development
AI without a solid backend is a liability. I build the infrastructure that keeps AI systems reliable at scale.
— FastAPI, Django, and Flask backends for AI orchestration
— Multi-tenant SaaS architecture with authentication and billing
— Real-time AI streaming via WebSockets
— REST and GraphQL API development
— PostgreSQL, MongoDB, Redis, Supabase, and Pinecone
— Docker, AWS, GCP, and Railway deployments
— MLOps pipelines: model versioning, monitoring, and retraining
Computer Vision & Deep Learning
— Object detection, image classification, and segmentation models
— Custom model training with PyTorch and TensorFlow
— OCR and document layout analysis
— Real-time video processing pipelines
— Model optimization and edge deployment
AI SAAS DEVELOPMENT
→ End-to-end AI SaaS products from architecture to deployment
→ LLM-powered features: chat, search, summarization, and generation
→ Real-time AI streaming with WebSockets
→ Scalable cloud deployment on AWS and GCP
VOICE AI AGENTS
Platforms: Vapi · Retell · ElevenLabs · Synthflow · Bland · LiveKit · Twilio · Vonage
I build and deploy production Voice AI Agents for real business environments — not demos.
→ Outbound AI sales agents: call, qualify, and book appointments automatically
→ Inbound AI receptionists: 24/7 call handling, routing, and escalation
→ Appointment booking and rescheduling agents
→ IVR replacement with natural conversational AI
→ Missed call recovery with instant automated callbacks
→ Post-call automation: CRM updates, SMS follow-ups, email summaries
WORKFLOW AUTOMATION
Platforms: n8n · Make · Zapier · Custom API Integrations
→ Multi-channel lead follow-up via Email, SMS, and WhatsApp
→ CRM pipeline automation and deal stage management
→ Client onboarding, invoicing, and payment workflows
→ Cross-platform data sync: Google Sheets, Airtable, Notion
→ AI-enhanced decision logic inside automation flows
→ Real-time KPI reporting and operational dashboards
FULL TECH STACK
AI/ML: LangGraph · LangChain · CrewAI · AutoGen · OpenAI · Anthropic · Hugging Face · PyTorch · TensorFlow · scikit-learn · spaCy
LLMs: GPT-4o · Claude · Gemini · Groq · Mistral · Llama
Backend: Python · FastAPI · Django · Flask
Databases: PostgreSQL · MongoDB · Redis · Supabase · Pinecone · Chroma · Weaviate
Cloud & DevOps: AWS · GCP · Docker · Railway · GitHub Actions
Frontend: Next.js · React · Tailwind CSS
Integrations: HubSpot · Salesforce · GoHighLevel · Stripe · Twilio · WhatsApp API · Slack
Voice: Vapi · Retell · ElevenLabs · Synthflow · Bland
Automation: n8n · Make · Zapier
If you are ready to build an AI system that actually works in production, not just a demo, message me and let's get started.
$25/hr
91%
Job Success
Offers consultations
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Hi there, I'm a FULL STACK DEVELOPER AND AI AUTOMATION EXPERT with 𝟓+ 𝐲𝐞𝐚𝐫𝐬 of experience who transforms business challenges into intelligent, scalable solutions. Whether you need a powerful web application, an AI chatbot that converts visitors into customers, or workflow automation that saves hours daily, I build systems that work while you focus on growing your business. I've helped 𝟑𝟓+ 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 across 𝟏𝟎+ 𝐜𝐨𝐮𝐧𝐭𝐫𝐢𝐞𝐬 streamline operations and boost revenue.
𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐓𝐎 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐌𝐄:
I don't just write code - I engineer complete solutions that solve real business problems. When you come to me with scattered tools, manual processes eating up time, or customers waiting for responses, I deliver end-to-end systems that integrate seamlessly, work reliably, and deliver measurable ROI.
𝐇𝐄𝐑𝐄'𝐒 𝐖𝐇𝐀𝐓 𝐈 𝐃𝐄𝐋𝐈𝐕𝐄𝐑:
𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭:
✦ Modern web apps using React.js, Next.js, Node.js, TypeScript
✦ Scalable backends with Express.js, NestJS, FastAPI, and REST APIs
✦ Database architecture with MongoDB, PostgreSQL, MySQL, and Supabase
✦ Cloud deployment on AWS, Firebase, Vercel, DigitalOcean
✦ Responsive designs with Tailwind CSS and Bootstrap
𝐀𝐈 𝐂𝐡𝐚𝐭𝐛𝐨𝐭 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭:
✦ Intelligent chatbots powered by GPT-4, Claude, and custom AI models
✦ RAG-based systems trained on your business knowledge base
✦ Voice AI agents for appointment scheduling and customer support
✦ Multi-channel deployment across websites, WhatsApp, Telegram, Slack
✦ Natural conversations with memory, context, and personalization
𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
✦ N8N, Make,com, Zapier automation for repetitive tasks
✦ CRM integrations with HubSpot, Salesforce, Pipedrive, Zoho
✦ API development and third-party service connections
✦ Marketing automation, lead generation, and email sequences
✦ Real-time data sync across platforms with zero manual work
𝐑𝐄𝐂𝐄𝐍𝐓 𝐒𝐔𝐂𝐂𝐄𝐒𝐒 𝐒𝐓𝐎𝐑𝐈𝐄𝐒:
⭐⭐⭐⭐⭐ Built telemedicine platform serving 𝟏,𝟐𝟎𝟎+ 𝐩𝐚𝐭𝐢𝐞𝐧𝐭𝐬 with 𝟗𝟗.𝟖% 𝐮𝐩𝐭𝐢𝐦𝐞
⭐⭐⭐⭐⭐ Deployed AI chatbot handling 𝟖𝟎% 𝐨𝐟 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐢𝐧𝐪𝐮𝐢𝐫𝐢𝐞𝐬 in 𝟏𝟐 𝐝𝐚𝐲𝐬
⭐⭐⭐⭐⭐ Rebuilt e-commerce platform achieving 𝟓𝟎% 𝐟𝐚𝐬𝐭𝐞𝐫 𝐥𝐨𝐚𝐝 𝐭𝐢𝐦𝐞𝐬
𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒:
✦ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 – React.js, Next.js, TypeScript, Tailwind CSS, JavaScript
✦ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 – Node.js, Express.js, NestJS, Python, FastAPI, PHP
✦ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 – MongoDB, PostgreSQL, MySQL, Supabase, Pinecone
✦ 𝐀𝐈 & 𝐋𝐋𝐌𝐬 – OpenAI GPT-4, LangChain, Claude, ChatGPT API, RAG
✦ 𝐂𝐡𝐚𝐭𝐛𝐨𝐭 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 – Botpress, Voiceflow, Dialogflow, Rasa
✦ 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 – HubSpot, Salesforce, Stripe, PayPal, REST APIs
𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐈𝐄𝐒 𝐈'𝐕𝐄 𝐖𝐎𝐑𝐊𝐄𝐃 𝐖𝐈𝐓𝐇:
✦ Healthcare & Telemedicine
✦ E-commerce & Retail
✦ SaaS & Cloud Platforms
✦ Real Estate & Property Tech
✦ FinTech & Financial Services
✦ Education & E-Learning
✦ Logistics & Transportation
✦ Customer Service & Support
𝐖𝐇𝐀𝐓 𝐖𝐎𝐑𝐊𝐈𝐍𝐆 𝐖𝐈𝐓𝐇 𝐌𝐄 𝐋𝐎𝐎𝐊𝐒 𝐋𝐈𝐊𝐄:
✦ 𝐂𝐥𝐞𝐚𝐫 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 – Daily updates and transparent project tracking
✦ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬-𝐟𝐢𝐫𝐬𝐭 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 – Focus on outcomes, not just features
✦ 𝐂𝐥𝐞𝐚𝐧, 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐜𝐨𝐝𝐞 – Documented, scalable, future-proof
✦ 𝐑𝐚𝐩𝐢𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 – Fast turnaround without compromising quality
✦ 𝐏𝐨𝐬𝐭-𝐥𝐚𝐮𝐧𝐜𝐡 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 – I stick around to ensure everything runs smoothly
𝐖𝐇𝐀𝐓 𝐌𝐀𝐊𝐄𝐒 𝐌𝐄 𝐃𝐈𝐅𝐅𝐄𝐑𝐄𝐍𝐓:
✦ 𝐈'𝐦 𝐚 𝐩𝐫𝐨𝐛𝐥𝐞𝐦 𝐬𝐨𝐥𝐯𝐞𝐫 𝐟𝐢𝐫𝐬𝐭 – Technology is the tool, your success is the goal
✦ 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 – Handle everything from frontend to AI to automation
✦ 𝐏𝐫𝐨𝐯𝐞𝐧 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 – Real metrics: faster sites, more leads, saved hours
✦ 𝐙𝐞𝐫𝐨 𝐬𝐮𝐫𝐩𝐫𝐢𝐬𝐞𝐬 – Honest estimates and transparent communication
✦ 𝐋𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐩𝐚𝐫𝐭𝐧𝐞𝐫 – Many clients return for their next project
𝐑𝐄𝐀𝐃𝐘 𝐓𝐎 𝐁𝐔𝐈𝐋𝐃 𝐒𝐎𝐌𝐄𝐓𝐇𝐈𝐍𝐆 𝐀𝐌𝐀𝐙𝐈𝐍𝐆?
Whether you're launching a web application, building an AI chatbot that converts, or automating workflows that drain your team's time – I'm here to make it happen.
𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐭𝐨𝐝𝐚𝐲 and let's discuss how I can transform your business with intelligent technology that delivers real results.
𝐋𝐞𝐭'𝐬 𝐭𝐮𝐫𝐧 𝐲𝐨𝐮𝐫 𝐯𝐢𝐬𝐢𝐨𝐧 𝐢𝐧𝐭𝐨 𝐫𝐞𝐚𝐥𝐢𝐭𝐲.
𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Full Stack Developer | Web Development | AI Chatbot Development | AI Agent Development | N8N | JavaScript | Python | React Developer | Node.js | Next.js | TypeScript | Workflow Automation | API Integration | OpenAI API | TailwindCSS, CSS3, HTML5, JavaScript, Python, Machine Learning, PHP, Vue.js, MySQL, WordPress, Web Design, ChatBot, Full-Stack, Front-end Development, API, Laravel, Django, MongoDB, AI Automation, FastAPI, Voice Agent, AI Agent
Mustafa A.
has worked
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