Fidelius
Enterprise Memory And Retrieval Platform
Fidelius is a four-network enterprise memory platform built and operated by Uplift AI. It combines pgvector semantic search, Neo4j knowledge graphs, BM25 full-text, and temporal filtering via Reciprocal Rank Fusion. 326K+ lines of code across 122 services; multi-tenant with hard isolation.
Pattern Mix
Build shipped the secure retrieval platform and the operating controls to production. Operate kept it improving cycle over cycle: multi-tenant isolation, observability, and downstream product readiness, so the platform did not decay after launch.
Business Context
The job wasn't to build a RAG application. It was to build a secure memory and retrieval foundation that could support multiple enterprise workloads, hard isolation boundaries, and future product lines on a single platform.
Business Relevance
The client needed a reusable platform capability that would shorten future product delivery, not another one-off AI feature funded out of an innovation budget.
Problem
Building an enterprise-grade AI memory system that can handle complex multi-tenant workloads with stringent security requirements.
Solution
- Designed, developed, and deployed the Fidelius memory service
- Built a cognitive-science-based memory system with four-way retrieval
- Created a multi-tenant security framework with hard tenant isolation
- Implemented defense-in-depth safeguards around code execution
Approach
- 1.Sequenced the engagement around platform risks first: data isolation, retrieval quality, and execution safety.
- 2.Made architecture decisions that supported future product expansion, not one-off feature delivery.
- 3.Built observability and operating boundaries alongside the platform so scaling didn't depend on manual intervention.
Operating Impact
A shared enterprise platform capability that supports multiple downstream AI experiences, instead of rebuilding memory and retrieval infrastructure for every new use case.
Business and Operating Outcomes
- +A reusable foundation for multiple AI products, not a single implementation
- +Lower platform risk because isolation and observability landed before downstream scale
- +A workable operating model for secure multi-tenant AI delivery
Technologies
“The platform gave us a single secure retrieval layer to build multiple AI products on, instead of starting from scratch each time.”