Engineering Projects & Architectural Case Studies | Yosef Teshome

Technical Case Studies

Engineering Projects & Systems

In-depth technical breakdowns of production RAG architectures, high-concurrency transactional backends, and autonomous agent platforms.

All Projects AI & RAG Backend Systems AI & Automation

AI & RAG Engineering

Completed

RAG Complaint Chatbot

An AI-powered RAG application that enables analysts to query a large-scale CFPB consumer complaint dataset using semantic retrieval and grounded language generation.

Key Metric

• 1.37 million consumer complaints indexed and processed

PythonRAGSentence TransformersFAISSFLAN-T5+1

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AI & RAG Engineering

In Production

Enterprise AI Knowledge Platform (RAG)

A high-throughput RAG system enabling real-time semantic document search across internal repositories with pgvector, BM25 hybrid ranking, and document-level RBAC.

Key Metric

• Sub-400ms end-to-end retrieval latency

Python 3.12FastAPIPostgreSQL 17pgvectorRedis+4

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