Harsh Wardhan

Full Stack Developer & AI Engineer

Fiverr • Freelance

Jan 2021 - Present • 5 yrs 9 mos

Freelance Full Stack Developer & AI Engineer | Jan 2021 - Present I have been working as a freelance Full Stack Developer and AI Engineer since January 2021, helping clients build modern web applications, AI-powered solutions, automation systems, and custom software. * Develop responsive and scalable web applications using React, Next.js, Vue.js, TypeScript, Tailwind CSS, Node.js, Express.js, Python, and FastAPI. * Build backend systems, REST APIs, authentication systems, databases, and third-party API integrations. * Develop AI-powered chatbots, AI agents, RAG systems, LLM applications, and business automation solutions. * Integrate OpenAI and other AI APIs into websites, applications, and business workflows. * Build custom automation systems to reduce repetitive tasks and improve business processes. * Work with databases including PostgreSQL, Supabase, and MongoDB. * Handle complete project development from requirements and architecture to development, testing, deployment, and maintenance. * Collaborate directly with clients to understand their requirements and turn their ideas into reliable, production-ready software. * Troubleshoot existing applications and improve performance, security, scalability, and user experience. * Provide ongoing technical support, updates, and improvements after project delivery. Key Skills: Full Stack Development, AI Engineering, AI Automation, AI Chatbots, AI Agents, RAG, React, Next.js, TypeScript, Node.js, Python, FastAPI, Supabase, PostgreSQL, MongoDB, REST APIs, API Integration, and Cloud Deployment.