Senior Software Engineer – AI Platform Engineering (Founding Engineer Role, Equity Only)

## About the role LaunchFamily is a mission-driven company that empowers families to take control of their children's growth, learning, and well-being through intelligent systems. We're building the world's first AI-powered Family OS. Parents juggle 50+ decisions a day, meal planning, homework help, emotional check-ins, and schedules. Most 'family apps' are just glorified to-do lists. We're building something different: an AI that actually understands your family's rhythm and proactively helps you stay ahead. We're looking for a Senior Software Engineer who can architect and scale the AI backbone behind this system, from retrieval-augmented generation (RAG) pipelines to multi-agent orchestration, and intelligent data flows that make our assistant truly personal. This is an equity-only opportunity during the beta phase as we prepare for seed funding. Our founders have led and co-founded ventures that collectively raised over $100M and have had successful exits. You'll be joining at the earliest stage to define the foundation of something transformative. ## What You'll Build ### AI Infrastructure (40%) - Design and implement multi-agent systems using the OpenAI Agents SDK for domains like scheduling, meal planning, education, and emotional guidance. - Build RAG pipelines with hybrid search (vector + structured), using PostgreSQL + pgvector, Redis, and Embeddings APIs to ground AI responses in trusted family data. - Develop contextual memory systems to store, retrieve, and rank user-specific insights (daily logs, family routines, past conversations). - Experiment with function calling, tool-use orchestration, and chain-of-thought prompting to create agents that reason and collaborate. - Optimize token usage, caching, and model routing to strike a balance between personalization, performance, and cost. ### Core platform Engineering (30%) - Design modular, scalable NestJS services (Fastify) with Drizzle ORM and PostgreSQL. - Build multi-tenant APIs and workspace logic to support apps built on Launched (our low-code builder). - Manage async workflows with BullMQ for real-time event processing, streaming responses, and queue-based pipelines. - Maintain end-to-end type safety with shared TypeScript models across backend and frontend. ### Frontend Portals (30%) - Develop core interfaces for Launched, enabling creators to train and deploy AI chatbots, tools, and apps using the same infrastructure that powers LaunchFamily. - Contribute to our Next.js-based assistant UI with real-time streaming, context management, and AI-driven visualizations. - Collaborate with product to prototype new AI-driven experiences, from proactive notifications to visual family insights. ## Tech Stack ### AI Layer - Agents SDK (core), LangChain / AutoGen (support) - RAG Stack: PostgreSQL + pgvector, Redis, OpenAI Embeddings - Model Integration: GPT-4o, custom fine-tuned models, retrieval interfaces - Evaluation & Testing: structured outputs, JSON schema validation, prompt benchmarking ### Core Platform - Backend: NestJS (Fastify)