Rohit K

AI Engineer and Data Engineer

Self Employed • Freelance

Jan 2011 - Present • 15 yrs 6 mos

I am a AI Engineer and Full-Stack Developer with 10+ years of experience building scalable, production-grade platforms across FinTech, Blockchain, AI, and workflow automation. I specialize in turning complex ideas into high-performance, secure, and maintainable products—from MVP to large-scale systems. In today’s AI-first era, my work focuses on AI-powered applications, MCP server operations, and automation-driven architectures. I have deep experience setting up, deploying, and maintaining MCP servers, ensuring optimal performance, reliability, and scalability. I am known for fast execution, clean architecture, and on-time delivery. I have strong expertise in Node.js and Python-based AI systems, including chatbots and intelligent assistants built with LangChain, Ollama, DeepSeek-Coder, OpenSearch, AWS, and modern frontend frameworks like React, Next.js, and React Native. My work includes: AI customer-support bots with automated responses and ticket workflows E-commerce bots for personalized recommendations and order tracking NLP-driven assistants for conversation understanding and task execution API-based automation bots and voice-enabled assistants using Web Speech API and Dialogflow On the frontend and backend, I work extensively with TypeScript/JavaScript, Node.js, Express, Next.js, React, Angular, Vue, Hapi, Strapi, and modern UI systems. I design high-performance REST and GraphQL APIs, microservices, and event-driven systems backed by PostgreSQL, MySQL, MongoDB, and Redis. I also bring strong Blockchain and Web3 expertise, including smart contract development and Ethereum integrations using Solidity, Hardhat, Truffle, Ethers.js, Web3.js, and wallet integrations like MetaMask and WalletConnect. I have built ERC-20, ERC-721, and ERC-1155 tokens, integrated IPFS, and delivered FinTech platforms that bridge traditional finance with decentralized systems. On the infrastructure side, I have hands-on experience with AWS (EC2, RDS, Lambda, API Gateway, SES, Co