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Freelance Full Stack & AI developer building enterprise-grade web & mobile apps with AI integration. I also run Meta Ads (Facebook & Instagram) and social media marketing. Built Calling Agent, Xpenly (App Store), and a Custom AI Platform— for clients across India & worldwide.
Sandeep Prajapati is a freelance full-stack & AI integration developer based in Ahmedabad, India, who builds enterprise web & mobile apps with React, Next.js, and Python. He also runs Meta Ads (Facebook & Instagram) and social media marketing for brands. He built an AI voice platform handling 1000+ leads and works remotely with clients across India and worldwide.
Sandeep Prajapati — Freelance Full-Stack & AI Integration Developer (React, Next.js, Python). Ahmedabad, India. Built AI voice platform handling 1000+ leads.
Full Stack Developer building scalable applications
Full Stack Developer with 3 Years 5 Months of experience building modern web & mobile applications. Currently at Ambit Global Solution, built Calling Agent (AI voice campaign platform), Xpenly (expense management app on App Store), and a Custom AI Platform for deploying intelligent agents.
Specialized in React.js, Next.js, TypeScript, React Native for frontend/mobile and Node.js, Express.js, Python for backend, with expertise in AI integration, real-time systems, and cross-platform mobile development.
Beyond development, I run Meta Ads(Facebook & Instagram) and social media marketing for brands. As a freelancer I work remotely with clients across Ahmedabad, Mumbai, Delhi, Bangalore, Gurugram, Hyderabad, Pune, Kochi and worldwide.
Enterprise AI applications with real-time features
Calling Agent, Xpenly (App Store), AI Agent Builder
Clean, maintainable, scalable code
Freelance web development, AI integration, mobile apps, Meta Ads & social media marketing — for clients across India and worldwide
Services offered by Sandeep Prajapati, freelance developer
Sandeep Prajapati is a freelance Full Stack & AI developer based in Ahmedabad, India, who also runs Meta Ads and social media marketing. He helps startups and businesses ship fast, scalable web & mobile apps, integrate AI/LLMs, and grow with high-ROI Facebook & Instagram campaigns — working remotely with clients across India and worldwide.
I build fast, scalable, SEO-friendly web applications with React.js, Next.js, TypeScript, Node.js, and Python. From enterprise dashboards to multi-tenant SaaS platforms — clean architecture, real-time features, and production-grade performance.
I integrate AI into products — LLM APIs (OpenAI GPT-4o, Anthropic), AI voice calling agents, RAG chatbots, and drag-and-drop AI agent builders. I built an AI voice campaign platform that handles 1000+ leads per day in real time.
I design and ship cross-platform iOS and Android apps with React Native and Expo. I published Xpenly, a finance app, live on the Apple App Store — built with offline sync, push notifications, and clean, fast UX.
I run and manage high-ROI Meta Ads campaigns on Facebook and Instagram — full setup, audience targeting, creative testing, pixel & conversion tracking, retargeting, and scaling. Focused on leads and sales, not just impressions.
I handle end-to-end social media management for brands — content strategy, Instagram and Facebook page handling, post scheduling, growth, engagement, and analytics. I help businesses build a consistent, converting social presence.
I optimize websites to rank on Google and to get cited by AI engines like ChatGPT, Perplexity, and Gemini. Technical SEO, structured data (schema), Core Web Vitals, answer-first content, and AI/LLM optimization (GEO, AEO, LLMO).
My professional journey building scalable web applications
Full Stack Developer / Software Engineer
Full Stack Developer / Software Engineer
React Developer
Software Engineer
Technologies I use to build exceptional digital experiences
Showcase of my recent work and accomplishments
Enterprise SaaS platform enabling businesses to automate voice call campaigns using AI agents. Features multi-tenant architecture with separate admin and client portals, real-time call monitoring via WebSockets, bulk lead management (1000+ leads), AI-powered conversations, drag-and-drop agent builder, real-time testing, comprehensive analytics dashboard, multi-channel deployment, and Twilio phone integration. Built with clean architecture using Repository Pattern, implements Redis job queues for scalable campaign processing.
Problem: Businesses needed automated voice call campaigns at scale
Solution: Built AI calling agent with real-time WebSocket monitoring and multi-tenant architecture
Result: 1000+ leads handled per campaign with live call tracking
Full-featured expense and income management mobile application available on the App Store. Helps users track daily expenses, manage income sources, set budgets, and visualize financial data with interactive charts. Features category-based tracking, recurring transactions, export reports, multi-currency support, and secure cloud sync. Built for both iOS and Android with a clean, intuitive UI.
Problem: Users lacked a clean way to track expenses and income on mobile
Solution: Built full-featured React Native app with budgets, charts, and cloud sync
Result: Published on App Store with multi-currency support and recurring transactions
Comprehensive web-based healthcare application for patient management, physician-patient communication, and facility coordination. Features real-time updates via WebSocket, appointment scheduling, patient data management, and seamless third-party integrations. Deployed on AWS ECS with containerized microservices architecture, utilizing DynamoDB for scalable NoSQL storage, S3 for file management, and SES for email notifications.
Problem: Healthcare facilities needed real-time patient data coordination
Solution: Built microservices on AWS ECS with WebSocket, DynamoDB, S3
Result: Scalable system with real-time updates and third-party integrations
Enterprise-grade full-stack admin dashboard with role-based authentication, comprehensive user management, real-time analytics, and data visualization. Features include secure JWT authentication, RESTful API architecture, CRUD operations, responsive design, and scalable MongoDB database integration.
Problem: Enterprise needed secure admin panel with analytics
Solution: Built full-stack app with JWT auth, CRUD, and data visualization
Result: Clean, responsive dashboard with real-time analytics
Full-featured CRM for real estate professionals with property management, client tracking, analytics, and automated workflows. Features lead scoring, property listing management, automated follow-ups, and comprehensive reporting.
Problem: Real estate teams lacked centralized CRM with automation
Solution: Built with Next.js + PostgreSQL + Prisma with automated workflows
Result: Lead scoring, property tracking, and automated follow-ups in one system
Python-based AI agent backend for automated task execution and LLM orchestration. Built with FastAPI for high-performance async APIs, LangChain for agent workflows, and integrated with OpenAI/Anthropic APIs for intelligent automation pipelines.
Problem: Businesses needed automated backend workflows with AI decision-making
Solution: Built FastAPI backend with LangChain agent orchestration and LLM APIs
Result: Automated multi-step workflows reducing manual effort by 80%
Academic background and professional certifications
Ganpat University
Mehsana, Gujarat / Ahmedabad, Gujarat
2019 - 2023
GPA: 7.5/10
Specialized in Software Engineering
Achievements:
Online Platform
2023
Online Platform
2023
Online Platform
2023
What clients say about working with Sandeep Prajapati
“Sandeep built our AI voice campaign platform from scratch — multi-tenant architecture, real-time WebSocket monitoring, and 1000+ leads per campaign. Delivered on time with clean, production-ready code.”
“We needed a fast Next.js dashboard with role-based auth and real-time analytics. Sandeep shipped a polished admin panel that our team still uses daily. Great communication and async-friendly.”
“Sandeep set up and scaled our Meta Ads campaigns on Facebook and Instagram. Pixel tracking, retargeting, and creative testing were handled end-to-end. We saw a clear lift in qualified leads within the first month.”
Replace with named LinkedIn recommendations when available — structure & schema are ready.
Common questions about my work, availability, and experience.
Sandeep Prajapati is a freelance Full Stack & AI developer based in Ahmedabad, India, with 3+ years of experience. He builds web and mobile apps with React.js, Next.js, React Native, and Python, integrates AI/LLMs, and also runs Meta Ads (Facebook & Instagram) and social media marketing. He works remotely with clients across India and worldwide.
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Freelance Full-Stack & AI Integration Developer (React, Next.js, Python) · Meta Ads & Social Media
Ahmedabad, Gujarat, India