Need a web app or SaaS product built end to end - and actually shipped? I'm a full-stack developer with 7 years of production experience and I own the whole build: frontend, backend, APIs, deployment, and AI features. You get a working product, not a handoff.
Recent work:
- A multi-tenant SaaS CMS with per-tenant databases, custom domain support, automated SSL via Caddy/Nginx, and self-serve tenant onboarding - architecture through production deployment.
- An AI chatbot platform with multiple AI personas, custom conversation flows and admin controls, built in Laravel, Vue.js and Node.js (5-star client review).
What I build
Web & SaaS applications - multi-tenant SaaS platforms, CRMs, CMS, LMS, eCommerce, admin dashboards and internal business tools using React, Next.js, Vue.js, Node.js, Laravel, Livewire, Django and FastAPI.
APIs & integrations - REST API design, payment gateways, CRM/ERP and shipping integrations, webhooks, and service-to-service communication. I make your systems talk to each other reliably.
AI chatbots & AI features - GPT/LLM-powered chatbots and voice agents for customer support, lead qualification, appointment booking and internal knowledge bases, deployed on your website, WhatsApp, or wherever your customers are.
How I work
- One developer owning the full stack, so nothing falls between frontend and backend
- Clean, documented code your next developer can actually read
- Replies within a few hours and a clear plan before I start building
Tech: Laravel, Livewire, PHP, React, Next.js, Vue.js, Node.js, Django, Flask, FastAPI, Python, MySQL, PostgreSQL, REST APIs, OpenAI/GPT API, Docker, Nginx, Caddy, Git.
Tell me what you're trying to ship and I'll tell you how I'd approach it, what it will take, and where the risks are - message me or invite me to your job post.
Chatbot Development
Python
Laravel
React
Django
Vue.js
AI Chatbot
AI Implementation
OpenAI API
API Development
API Integration
SaaS Development
PHP
Next.js
Node.js
Full-Stack Development
AI Agent Development
Sudarshan S.
Alwar, India
$15/hr
5.0
1 jobs
I help businesses automate customer support, streamline workflows, and build AI-powered applications using OpenAI, Gemini, Python, React, Node.js, and modern full-stack technologies.
⭐ Successfully delivered an AI chatbot project with a 5-star client rating for quality, communication, and timely delivery.
I believe in clear communication, clean code, and delivering solutions on time.
What I can help you build:
✅ AI Chatbots powered by OpenAI & Google Gemini
✅ Custom AI Assistants
✅ AI Workflow Automation
✅ AI Customer Support Systems
✅ Document & PDF Chatbots (RAG)
✅ AI-Powered Web Applications
✅ REST API Development & Integration
✅ MERN Stack Applications
✅ Admin Dashboards & Business Portals
If you're looking for an AI chatbot, AI agent, or full-stack web application, send me a message to discuss your project. I'd be happy to recommend the best AI solution for your business.
JavaScript
Python
AI Chatbot
Artificial Intelligence
OpenAI API
ChatGPT
Google APIs
Gemini
LangChain
React
Node.js
Prompt Engineering
API Integration
MongoDB
REST API
AI Agent Development
Retrieval Augmented Generation
FastAPI
Shaileshkumar J.
Mumbai, India
$20/hr
5.0
8 jobs
I’m a software engineer focused on building reliable backend systems, automation workflows, and AI-powered solutions that actually work in production not just demos.
Core Specializations:
1. Backend & AI Development
-- API design/integration (FastAPI, Flask, Node.js)
-- LLM integrations (OpenAI GPT, Gemini, Grok), RAG, chatbots, voice bots
-- Data extraction, NLP, web scraping (Scrapy, BeautifulSoup, Apify)
2. Automation Workflows
-- Business process automation (Celery, Zapier, Python scripts)
-- SMS/voice automation (Twilio, Dialogflow)
-- Real-time data processing and scalable services
4. Technical Stack:
-- Languages/Frameworks: Python, Node.js, FastAPI, LangChain, Hugging Face
-- AI Platforms: OpenAI, Gemini, Mistral, Pinecone vector DBs
-- Databases: PostgreSQL, MongoDB, MySQL, DynamoDB
-- Data Tools: Scrapy, Apify, Pandas, scikit-learn
Let’s build production-ready AI solutions together starting with your free consult 🎯
Machine Learning
Python
Artificial Intelligence
OpenAI API
AI Consulting
AI Development
AI Chatbot
PyTorch
LangChain
Pinecone
AI Agent Development
Generative AI
GPT Chatbot
Prompt Engineering
Agent GPT
Varun J.
Panchkula, India
$20/hr
4.8
65 jobs
SaaS Developer | Full Stack SaaS Developer | React, Next.js, Python, Node.js | AI & LLM Applications
I am a Full Stack SaaS Developer specializing in building scalable, subscription-based SaaS products and AI-powered web applications from concept to launch. I help startups, founders, and businesses transform ideas into production-ready software using React, Next.js, JavaScript, TypeScript, Node.js, Python, PostgreSQL, MongoDB, AWS, and modern cloud technologies.
Over the years, I have helped companies build scalable SaaS applications, customer portals, CRM systems, ERP platforms, marketplaces, AI-powered products, internal business tools, membership platforms, workflow automation solutions, and intelligent business platforms powered by Large Language Models (LLMs).
My expertise covers the complete SaaS development lifecycle from product architecture and MVP development to AI integration, scaling, optimization, and long-term maintenance. Whether you're looking to build a new SaaS platform, modernize an existing application, create a customer-facing dashboard, implement subscription billing, develop AI-powered workflows, or build a complex multi-tenant application, I can help deliver a secure, scalable, and user-friendly solution.
### 𝗦𝗮𝗮𝗦, 𝗣𝘆𝘁𝗵𝗼𝗻 & 𝗔𝗜 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
✓ SaaS Product Development
✓ Full Stack Development
✓ Multi-Tenant SaaS Architecture
✓ MVP Development for Startups
✓ B2B & B2C SaaS Platforms
✓ Enterprise Software Development
✓ Customer Portals & Self-Service Platforms
✓ Subscription-Based Applications
✓ Stripe Billing & Payment Integrations
✓ REST API & GraphQL Development
✓ Authentication & Authorization Systems
✓ Role-Based Access Control (RBAC)
✓ Admin Dashboards & Analytics Platforms
✓ CRM & ERP Development
✓ Workflow Automation Platforms
✓ AI SaaS Applications
✓ AI Chatbots & AI Assistants
✓ OpenAI, Anthropic Claude & Gemini API Integration
✓ Retrieval-Augmented Generation (RAG) Applications
✓ AI Workflow Automation
✓ Prompt Engineering & LLM Integration
✓ Python Backend Development (FastAPI, Django)
✓ API Integrations & Third-Party Services
✓ Database Architecture & Optimization
✓ Cloud Deployment & DevOps
✓ Performance Optimization & Scalability
### 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀
React.js • Next.js • JavaScript • TypeScript • Node.js • Express.js • NestJS • **Python** • FastAPI • Django • PostgreSQL • MongoDB • MySQL • Prisma • Supabase • Firebase • AWS • Vercel • Docker • Redis • Tailwind CSS • Material UI • Stripe • OpenAI API • Anthropic Claude API • Google Gemini API • LangChain • Vector Databases • Pinecone • Weaviate • FAISS • REST APIs • GraphQL
I focus on building software that not only works but is designed for growth, scalability, maintainability, AI readiness, and long-term business success. My goal is to become a long-term technology partner for startups and businesses looking to build world-class SaaS products and AI-powered platforms.
### 𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝘂𝘀𝗶𝗻𝗴 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀
SaaS Developer, Full Stack SaaS Developer, SaaS Application Developer, SaaS Development, SaaS Engineer, SaaS Architect, React Developer, Next.js Developer, JavaScript Developer, TypeScript Developer, Node.js Developer, **Python Developer**, FastAPI Developer, Django Developer, AI Developer, AI Engineer, AI SaaS Developer, LLM Developer, OpenAI Developer, Claude API Developer, LangChain Developer, RAG Developer, AI Automation Developer, Generative AI Developer, AI Chatbot Developer, Multi-Tenant SaaS Developer, Startup MVP Developer, Product Engineer, Software Engineer, Web Application Developer, CRM Developer, ERP Developer, Dashboard Developer, Subscription Platform Developer, Stripe Integration Expert, API Integration Developer, Cloud Application Developer, Full Stack Engineer.
JavaScript
Python
SaaS Development
SaaS
Artificial Intelligence
AI Agent Development
Generative AI
AI Chatbot
LLM Prompt Engineering
Retrieval Augmented Generation
Full-Stack Development
React
Next.js
Supabase
CRM Software
Analytics Dashboard
Claude 3.5 Sonnet
Software Development
Node.js
Tailwind CSS
Rahul S.
Surat, India
$11/hr
5.0
3 jobs
Hi, I'm Rahul Savaliya 👋
I'm an Agentic AI Developer with 5+ years of experience building AI solutions that help businesses automate tasks, improve customer support, generate leads, and increase productivity.
I build more than simple chatbots. I develop AI Agents, Agentic AI Systems, AI Chatbots, AI Voice Agents, RAG Solutions, and AI Automation Workflows that can understand requests, use tools, connect with business systems, and complete real-world tasks.
✔ 5+ Years of Development Experience
✔ 100% Job Success Score
✔ 5-Star Client Reviews
✔ Rising Talent
✔ Production-Ready AI Solutions
What I Can Build
✦ Agentic AI & AI Agents
➤ AI Agent Development
➤ Agentic AI Systems
➤ Multi-Agent Systems
➤ AI Task Automation
➤ AI Workflow Automation
➤ Tool Calling & Function Calling
✦ AI Chatbots
➤ Custom AI Chatbots
➤ Customer Support Chatbots
➤ RAG Chatbots
➤ Knowledge Base Chatbots
➤ OpenAI / ChatGPT Chatbots
➤ Website, WhatsApp & Telegram Bots
✦ AI Voice Agents
➤ AI Voice Agent Development
➤ AI Receptionists
➤ AI Calling Agents
➤ Appointment Booking Agents
➤ Lead Qualification Agents
➤ Inbound & Outbound Voice Agents
✦ AI Automation
➤ Business Process Automation
➤ CRM Automation
➤ Workflow Automation
➤ n8n
➤ Make
➤ Zapier
Technical Expertise
AI & LLMs
OpenAI • GPT-4o • Claude • Gemini • LangChain • LangGraph • RAG • Prompt Engineering • Generative AI
Voice AI
Twilio • ElevenLabs • Retell AI • Vapi • Speech-to-Text • Text-to-Speech • Conversational AI
Backend & APIs
Python • FastAPI • TypeScript • REST APIs • Webhooks • Third-Party API Integration
Vector Databases
Pinecone • FAISS • ChromaDB • PostgreSQL
Industries
➤ SaaS & Startups
➤ Healthcare & Medical
➤ Real Estate
➤ E-commerce
➤ Finance & Insurance
➤ Education
➤ Marketing
➤ Customer Support
➤ HR & Recruitment
➤ Logistics
My Work Process
1. Discovery
I understand your business, goals, users, and the problem you want to solve.
2. Planning
I select the right AI models, tools, integrations, and architecture for your project.
3. Development
I build your AI agent, chatbot, voice agent, automation workflow, or complete AI application.
4. Testing & Optimization
I test and improve the solution for reliability, accuracy, performance, and scalability.
5. Deployment & Support
I deploy the solution, connect it with your existing systems, and provide ongoing support.
Why Work With Me?
✔ Business-focused AI solutions
✔ Clean and scalable development
✔ Strong Python & FastAPI experience
✔ Agentic AI and automation expertise
✔ Clear communication
✔ Regular project updates
✔ On-time delivery
✔ Long-term support
Let's Build Your AI Solution
Whether you need an AI Agent, AI Chatbot, AI Voice Agent, RAG system, business automation workflow, or complete AI-powered application, I can help turn your idea into a reliable production-ready solution.
Send me a message and let's discuss your project and goals.
Natural Language Processing
Python
AI Chatbot
OpenAI API
ChatGPT
LangChain
Conversational AI
FastAPI
API Integration
Automation
Twilio API
Prompt Engineering
AI Agent Development
n8n
Zapier
Vector Database
Krishna S.
Ahmedabad, India
$27/hr
4.8
420 jobs
10+ Years | 8300+ Hours | 370+ Projects | Top Rated Plus
I build AI-powered tools and full-stack web solutions that solve real business problems, from AI chatbots that qualify and convert leads to fast, optimized WordPress and Shopify stores.
What I can deliver:
✔ AI Chatbots & OpenAI/ChatGPT API
✔ WordPress, Elementor, WooCommerce & Custom Plugin Development
✔ Shopify & Liquid
✔ React, Next.js, PHP/Laravel & Node.js, Full-stack Expertise
✔ Custom APIs & Third-Party Integrations
✔ Website Performance & Optimization
I've built and shipped my own AI and WordPress products, not just implemented features for clients (you can check them in my portfolio below), so I bring product-level judgment to every project: clean architecture, real performance, and systems that actually work in production.
Tell me what you're building; I'll tell you exactly how I'd approach it.
Web Application Development
Mobile App
Custom PHP
Custom App
Website Migration
Android App Development
iOS Development
Front-End Development
Back-End Development
Data Migration
Rebranding
Website Customization
Web Development
App Design
Full-Stack Development
How it works
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