Full-Stack AI SaaS Developer Needed (React, Next.js, TypeScript, AI Agents) – Build MindRep

We are building **MindRep**, an AI-powered learning platform designed to help students learn, retain, and master knowledge through personalized AI-driven study experiences. We're looking for an experienced **Full-Stack AI Engineer** who can take ownership of building and scaling the product from MVP to production. This is a hands-on role requiring strong expertise in modern web development, AI/LLM integrations, agentic workflows, and cloud infrastructure. ## Tech Stack ### Frontend * TypeScript * React.js * Next.js * Tailwind CSS (preferred) ### Backend * Node.js * TypeScript * PostgreSQL * TypeORM ### Infrastructure * AWS ECS * AWS S3 * Docker * CI/CD pipelines ### AI & LLM Stack * OpenAI APIs * LangChain * LangGraph * Tool Calling * Function Calling * Retrieval-Augmented Generation (RAG) * Vector Databases * AI Agents * Agentic AI Systems * Multi-Agent Workflows ## Key Responsibilities * Design and develop the full-stack architecture for MindRep. * Build responsive and scalable frontend experiences using React and Next.js. * Develop backend services and APIs using TypeScript and PostgreSQL. * Implement authentication, user management, billing, and subscription systems. * Integrate OpenAI models and advanced LLM workflows. * Build AI-powered learning assistants and study agents. * Create agentic workflows using LangGraph and LangChain. * Implement vector search, semantic retrieval, and RAG pipelines. * Build tool-calling agents capable of interacting with external systems and educational resources. * Deploy and maintain infrastructure on AWS ECS and S3. * Ensure performance, security, scalability, and maintainability of the platform. ## Required Experience * 4+ years of full-stack development experience. * Strong expertise in TypeScript, React.js, and Next.js. * Experience with PostgreSQL and TypeORM. * Production experience deploying applications on AWS. * Experience building AI products using OpenAI APIs. * Strong understanding of LangChain and LangGraph. * Experience with vector databases and retrieval systems. * Experience designing and implementing AI agents and agentic workflows. * Knowledge of prompt engineering, tool calling, and structured outputs. * Strong software architecture and problem-solving skills. ## Nice to Have * Experience building EdTech products. * Experience with subscription/payment systems (Stripe). * Knowledge of analytics and user behavior tracking. * Experience with multi-tenant SaaS architectures. * Experience fine-tuning or evaluating LLM applications. ## To Apply Please include: 1. Links to AI products or SaaS applications you've built. 2. Examples of projects using OpenAI, LangChain, LangGraph, or AI agents. 3. Description of your role in those projects. 4. Your availability (hours/week). 5. Expected hourly rate or fixed-price estimate. 6. GitHub profile and portfolio links. We're looking for a long-term technical partner who is passionate about AI and excited to build the future of learning.