Senior AI Engineer — Agentic Systems & Knowledge Graphs

A leading internet provider is looking for a Senior AI Engineer to join their team in Middelburg, Mpumalanga.

The Mission:

We are building a sovereign, company-wide AI fabric. This system ingests every document, ticket, transaction, and data point across our portfolio (Veralogix, Bioniq, Innovata, Treadstone, Aiguille) into a unified retrieval, property-graph, and agentic layer. It provides natural-language, grounded, and traceable insights in real-time.

Responsibilities:

1. The Retrieval Spine

• Design and implement a chunking strategy for heterogeneous content: PDFs, scanned docs, transcripts, tables, code, and ERP records.
• Engineer hybrid search (BM25 + dense + late-interaction), reranking, and query routing.
• Architect and operate the vector database infrastructure (pgvector + Qdrant or equivalent).

2. The Corporate Knowledge Graph

• Design and implement the ontology for the cor...