Senior Full-Stack AI Engineer (React, Next.js, Python, OpenAI)

We're looking for a senior full-stack engineer to help build AI-powered web applications for multiple clients. This is a long-term opportunity. We're not looking for someone to simply integrate an LLM API. We need engineers who understand how to build production-ready software and use AI as part of larger systems. You'll work on SaaS products, internal business tools, automation platforms, customer portals, and AI-powered applications. Experience with RAG, AI agents, workflow automation, MCP, LangChain or LangGraph is a plus. What You'll Do Build full-stack web applications Integrate AI features into existing products Develop scalable backend APIs Design clean, maintainable architectures Collaborate with product managers and designers Participate in code reviews Work directly with clients when needed What We're Looking For 5+ years of professional software development Strong React and backend experience Experience building production applications Comfortable working with existing codebases Excellent written and spoken English Able to work independently and communicate proactively Please Include Links to 2-3 applications you've built. Your role in those projects. Any AI-powered products you've worked on. Your availability. Your hourly rate.