Onyekachi (Osisiogu) Emenike

Welcome! I am Onyekachi Emenike, a Data Engineer, Data Scientist, and ML Practitioner with a Ph.D. in Computational Mathematics — and this is where I document what I build, write, and think about data.

🟢 Open to work — Data Engineering · Analytics Engineering · Data Science · ML Engineering

I build production-grade ELT pipelines, layered cloud data warehouses, and ML systems in Python, SQL, GCP, and dbt. My work spans the full data stack — from batch ingestion and layered data modelling (raw → staging → marts) to predictive analytics, MLOps pipelines, and agentic AI applications.

📍 Rheinland-Pfalz, Germany · EU work authorisation · Available immediately

Engineering & Data Science

I design and build data systems that business teams can actually rely on — clean, tested, well-documented transformations that hold up in production. On the data science side, I develop predictive models, time-series forecasts, and ML pipelines that turn raw data into decisions. Recent work includes cloud-native ELT pipelines on GCP with BigQuery and Terraform, an end-to-end MLOps pipeline with Prefect and MLflow, and an agentic RAG assistant built with LangChain, FAISS, and GPT-4o.

Stack: Python · SQL · dbt · BigQuery · DuckDB · GCP · Terraform · Docker · Prefect · Bruin · MLflow · Evidently · Scikit-learn · XGBoost · LangChain · FAISS · Streamlit · Plotly

Open to: Full-time · Contract · Remote or hybrid in Germany

Writing

I write about data engineering, data science, and ML systems on Medium — practical, technical posts aimed at engineers and data professionals.

📩 Reach out directly: kachi.emenike12@gmail.com