Sahil C.

Full Stack Developer | AI Engineer | SaaS, Claude Code, RAG, Node.js

Build Faster. Scale Smarter. Ship Software That Actually Works. Your product needs more than a developer who can write code. It needs someone who can understand the architecture, solve the hard backend problems, integrate AI where it creates real value, and take the product all the way to production. I’m a Full Stack Developer and AI Engineer specializing in SaaS platforms, scalable backend systems, AI-powered applications, APIs, and modern web products using Node.js, NestJS, Laravel, React, Next.js, Python, Claude Code, MCP, and GPT-5. Whether you’re launching a new SaaS, rebuilding an existing application, improving a backend, or adding AI to a working product, I can take ownership from architecture and development through integrations, optimization, and deployment. 🚀 FULL-STACK & SAAS DEVELOPMENT • Custom SaaS application development • Multi-tenant SaaS platforms • MVP development and product upgrades • Business dashboards and internal applications • Authentication, RBAC, subscriptions, payments, and analytics • Next.js, React, TypeScript, Tailwind • Node.js, NestJS, Express, Laravel, PHP I focus on building applications that are easy to maintain today and ready to scale tomorrow. ⚙️ BACKEND & API DEVELOPMENT • Node.js and NestJS backend development • Laravel and PHP application development • Python and FastAPI services • REST API development • Microservices and scalable architectures • Background jobs and asynchronous workflows • Redis caching and performance optimization • PostgreSQL, MySQL, MongoDB • Database design, indexing, and query optimization From a simple API to a complex backend powering a SaaS platform, I build systems designed for real production workloads. 🤖 AI DEVELOPMENT & CLAUDE CODE AI becomes valuable when it is connected to your actual product and business workflows. I build: • AI agents and agentic workflows • Claude Code integrations • Anthropic Claude applications • Model Context Protocol (MCP) servers • OpenAI GPT-5 integrations • AI copilots and internal assistants • Function calling and tool use • AI-powered SaaS features • AI automation and business workflows I focus on practical AI implementations that solve real problems rather than adding AI simply for the sake of having it. 🧠 RAG & LLM APPLICATIONS • Retrieval-Augmented Generation (RAG) • Document Q&A systems • Business knowledge bases • Embeddings and vector search • Semantic and hybrid search • pgvector, Pinecone, and Qdrant • AI applications connected to private company data 🔌 API, AUTOMATION & INTEGRATIONS I connect applications with the tools and platforms businesses already depend on. Experience includes Stripe, Twilio, Slack, HubSpot, Salesforce, WhatsApp, Telegram, Notion, Airtable, Google Workspace, and custom APIs. I also build automation using n8n, Make, Zapier, Python, webhooks, APIs, and custom workflows. ☁️ CLOUD, DEVOPS & PRODUCTION • AWS • Docker • Vercel • DigitalOcean • Cloudflare • CI/CD pipelines • Linux and Nginx • Production deployment • Monitoring and debugging • Performance and scalability optimization I don’t consider a project finished when it works on localhost. The goal is a stable, secure, maintainable production system. 🎯 WHAT I CAN HELP YOU WITH Full Stack Development Backend Development SaaS Development AI Development AI Agent Development Claude Code Development MCP Development Node.js / NestJS Development Laravel Development Python Development Next.js / React Development API Development RAG & LLM Applications Third-Party API Integrations System Architecture Performance Optimization Cloud Deployment ✅ WHY CLIENTS WORK WITH ME • Production-first mindset • Strong backend and system architecture • AI expertise combined with real software engineering • End-to-end ownership • Clean and maintainable code • Practical, business-focused technical decisions • Clear communication and regular updates • Comfortable working with existing codebases as well as new products From a SaaS MVP to a high-traffic backend or an AI-powered application, I can help you build it, improve it, and get it ready for real users. Have an existing product, a new SaaS idea, or a backend/AI challenge? Send me the details and let’s build a solution that is reliable, scalable, and ready for production.