Thegretia
Patrick Thomas MBONJO ETIA • Thegretia

Architecting Scale-Ready Data & AI Systems.

Data Engineer, AI/ML Specialist, and Python Systems Architect. I build high-throughput PySpark Lakehouse pipelines, low-latency deep learning inference engines, and resilient distributed backends.

Daily Data Pipeline2.4+ TB
Inference Latency< 140ms
Streaming Throughput14K txn/s
Availability SLA99.98%
Technical Capabilities

Core Engineering Matrix

A breakdown of production technologies, frameworks, and architecture patterns applied across client and enterprise systems.

Data Engineering

Data Engineering

Building multi-terabyte Lakehouse ETL/ELT architectures with ACID guarantees, schema evolution, and automated data quality checks.

Production Stack
PySpark & Spark CoreAzure DatabricksDelta Lake (Medallion)Advanced SQL & Query Tuningdbt-core / dbt-databricksAzure Data Factory (ADF)Great Expectations
AI & Machine Learning

AI & Machine Learning

Training and deploying parameter-efficient NLP/ASR models, optimizing deep learning graphs for sub-100ms low-latency inference.

Production Stack
PyTorch & TorchAudioHugging Face TransformersWhisper & Wav2Vec2 (ASR)ONNX Graph Quantization (INT8)LLM Orchestration & RAGTensorFlow & Scikit-learnStreamlit Dashboards
Software & Cloud Systems

Software & Cloud Systems

Engineering high-concurrency asynchronous Python backends, containerized microservices, and distributed streaming queues.

Production Stack
Python (Asyncio, Pydantic V2)FastAPI & REST / WebSocketsDocker & ContainerizationRedis Streams & Distributed LocksApache Kafka StreamingSupabase & PostgreSQLLinux & CI/CD Pipelines
Selected Deep Dives

Featured Case Studies

View All Projects
AI & ML6 Months • 2025

Akilang Speech & Translation Engine

Low-resource African languages ASR and Neural Machine Translation system

A high-performance multilingual Automatic Speech Recognition (ASR) and Neural Machine Translation (NMT) platform designed specifically for under-represented African languages, achieving high transcription accuracy and low-latency inference.

WER Reduction28.4%
Inference Latency< 140ms
Data Engineering8 Months • 2024 - 2025

KIYANZA - Plateforme d'optimisation et de suivi des strategies de communication

Medallion architecture on Azure Databricks, PySpark, and Delta Lake

An enterprise-grade Lakehouse data pipeline ingesting multi-source transactional and telemetry data into Bronze, Silver, and Gold Delta Lake tables with automated schema enforcement, dbt transformations, and data quality observability.

Data Volume Processed2.4 TB / Day
ETL Runtime Reduction54%
AI & ML5 Months • 2024

Real-Time Streaming Fraud Detection Engine

Sub-50ms financial transaction anomaly scoring with PySpark and Redis

A distributed real-time streaming ML pipeline processing payment streams via Apache Kafka, computing real-time feature aggregations in Redis, and executing XGBoost anomaly classification under strict latency SLAs.

Processing Latency38ms
Throughput14,000 txn/s
Technical Notes

Latest Architecture Insights

Explore All Articles