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Emeka Chibuike

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Cloud data engineer at a Lagos oil and gas company, building IoT telemetry pipelines on GCP. Designed the streaming anomaly detection system that flags equipment faults 20 minutes before they cause downtime.

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Articles by Emeka Chibuike(1)

Building a personalised recommendation engine with embeddings

Embedding-based recommendation systems outperform collaborative filtering at cold-start and can be built entirely with open-source tools. This guide walks through the full pipeline: generating item and user embeddings, storing them in pgvector, and serving low-latency personalised recommendations in production.

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16 July 2026

Emeka Chibuike — ANN Tech — ANN Tech