AI Backend Integration Specialist Needed

PHP, Java, JavaScript, Website Design, Backend Development, AI Model Development, AI Integration, AI Workflow Automation · FREELANCER ADVERT — AI / BACKEND SPECIALIST

Senior AI Systems & Backend Product Engineer — LLM/RAG/Evals/TypeScript

SHORT PROJECT BRIEF

We are looking for one exceptional hands-on AI/backend engineer to own and complete the AI intelligence and backend integration layer of an EXISTING consumer software product. The application, product specification and core platform already exist. The role is to make the AI reliable, grounded, testable and properly connected to the product's canonical state — not to build a chatbot demo.

The current product uses a TypeScript/serverless backend, structured application state, document/evidence ingestion, search/retrieval, external providers and AI-assisted workflows. A detailed V1.5 build specification already defines the required behaviours, state transitions, outputs and acceptance tests.

We will provide the detailed product logic, user journeys, domain research, knowledge/brain materials, representative cases and expected outcomes. We will do the information/research heavy lifting. Your job is to audit the current AI/backend implementation, preserve what is good, improve what is weak, complete the missing AI/backend work and build a repeatabl