Senior AI Product Architect / Full-Stack AI Engineer — VERITAS Custom GPT Platform

Senior AI Product Architect / Full-Stack AI Engineer — VERITAS Custom GPT Platform VERITAS is looking for a highly experienced AI Product Architect / Full-Stack AI Engineer, or a small senior team, to build a sophisticated Custom GPT inside ChatGPT connected to a secure external backend and persistent member database. Our goal is to create a VERITAS AI system that can learn about each member over time across areas such as health, fitness, nutrition, mindset, relationships, business, goals, habits, opportunities and threats. The Custom GPT will be the initial member interface, while the backend will securely store and retrieve long-term member data so the AI can provide increasingly personalized insights over time. What We Need Experience with: Advanced Custom GPT development GPT Actions / OpenAI API Persistent AI memory External databases and APIs PostgreSQL / Supabase RAG, embeddings and semantic retrieval Authentication and secure multi-user systems Full-stack AI product development AI evaluation, security and production deployment We are not looking for a basic Custom GPT or prompt-engineering freelancer. We need someone capable of architecting and building the full system behind the GPT. Previous Experience Please include: The most relevant AI products you have built Your specific role in those projects Experience connecting GPTs or LLMs to external databases Experience building persistent user memory Relevant portfolio links, case studies or examples Technologies used Whether you personally will be completing the work or working with a team Your hourly rate or expected project range Experience with AI assistants, personal-data platforms, health/performance systems, coaching technology or longitudinal user profiles is a strong advantage. Selection Process We will be reviewing applications and previous work over the coming days. A small number of shortlisted candidates will be contacted directly for a video interview where we will discuss the full VERITAS vision, technical architecture, project scope, timeline and budget in much greater detail. Please begin your proposal with: VERITAS INTELLIGENCE Generic proposals will not be considered.