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MayanzaGo/README.md

👋 Hi, I'm Gael Mayanza-Ouamba

Data Engineer | AWS | Databricks | PySpark | SQL | Cloud Data Platforms

I build reliable data pipelines, streaming data platforms, and lakehouse solutions using AWS and Databricks.

My focus is on turning raw data into trusted, production-oriented data products through ETL/ELT, data quality, distributed processing, orchestration, governance, and CI/CD.


💡 About Me

I'm a Data Engineer with a background in Business Analytics, financial auditing & control, and operations, combining business understanding with hands-on data engineering.

I have experience working with:

  • Cloud data engineering on AWS and Databricks
  • Batch and streaming data pipelines
  • Python, SQL, PySpark, and Apache Spark
  • Delta Lake and lakehouse architectures
  • Data quality and validation
  • ETL/ELT and dimensional modeling
  • Workflow orchestration
  • CI/CD and deployment automation
  • Data visualization and operational analytics

I particularly enjoy designing systems where data ingestion, quality, governance, processing, and deployment work together as one platform.


🛠️ Tech Stack

Programming & Scripting Python · SQL · Bash · R · Git · Linux

Data Engineering PySpark · Apache Spark · Spark SQL · ETL/ELT · Data Pipelines · Data Ingestion · Batch Processing · Incremental Processing · Apache Airflow · Delta Lake · Kafka

Cloud & Data Platforms AWS · Amazon S3 · AWS Glue · Amazon Redshift · Amazon Kinesis · AWS IoT Core · Databricks · Snowflake

Data Modeling & Warehousing Dimensional Modeling · Star Schema · OLAP · ERD · 3NF · Data Warehousing

Data Quality & Governance Great Expectations · Data Validation · Data Quality Rules · Unity Catalog · Data Governance

Orchestration & CI/CD Lakeflow Jobs · Databricks Asset Bundles · GitHub Actions · OIDC · Docker

Analytics & Visualization Power BI · Tableau · Databricks SQL · Looker · Pandas · NumPy · Matplotlib · Excel

AI / ML Scikit-learn · TensorFlow · LLM APIs · Generative AI · NLP


🏆 Certifications

  • AWS Certified Data Engineer – Associate
  • Databricks Certified Data Engineer Associate
  • IBM Data Engineering Professional Certificate
  • Google Data Analytics Professional Certificate
  • dbt Fundamentals
  • AWS Cloud Foundations
  • Databricks Lakehouse Fundamentals
  • IBM Granite Code Optimization
  • NVIDIA Generative AI / LLM Training

🚀 Featured Project

🏭 Industrial Energy Streaming Data Platform

AWS IoT Core → Kinesis → Databricks → Delta Lake → Unity Catalog → Lakeflow Jobs → GitHub Actions

A near-real-time industrial telemetry platform designed to simulate monitoring of pumps, motors, turbines, pipelines, and storage assets.

The platform demonstrates:

  • Python-based industrial sensor simulation
  • MQTT telemetry ingestion through AWS IoT Core
  • Streaming transport with Amazon Kinesis Data Streams
  • Databricks Structured Streaming
  • Bronze → Silver → Quarantine → Gold architecture
  • Event-time processing and watermarking
  • Streaming deduplication
  • Data-quality validation
  • Invalid-record quarantine
  • Asset-health and anomaly aggregation
  • Unity Catalog governance
  • Lakeflow Jobs orchestration
  • Databricks Asset Bundles
  • GitHub Actions CI/CD
  • GitHub OIDC authentication
  • CloudWatch monitoring
  • Databricks SQL operational dashboard

🔗 View the Industrial Energy Streaming Data Platform


📊 Other Projects

🏦 Global Banks Market Capitalization ETL

Python-based ETL pipeline for extracting, transforming, and loading financial data into a relational database.

🎵 Spotify Artist Analytics

Airflow-based data pipeline using MySQL and Power BI for music analytics.

🧾 Amazon Review Analysis

NLP-based text classification and sentiment analysis using Python and Scikit-learn.

🌦️ Weather Data Pipeline

Containerized Airflow pipeline for automated weather-data ingestion and analytics.


💼 Experience

Data Engineer — Get Hired Technologies / LegitScript

Remote | 2026–Present

Building and supporting data engineering workflows involving:

  • Python and PySpark ETL
  • API and database ingestion
  • Apache Airflow
  • SQL
  • Snowflake and Amazon Redshift
  • Data transformation and validation
  • Analytical reporting

Graduate Assistant — Database Management & Artificial Intelligence

Fordham University

Supported database and AI-related academic work involving:

  • SQL and relational databases
  • Data modeling
  • ETL concepts
  • Big data technologies
  • Python
  • Machine learning
  • Generative AI and LLM technologies

Data Engineering Intern — Oeson Global

Worked on data engineering and data-quality projects involving:

  • Great Expectations
  • Databricks
  • PySpark
  • Star-schema data modeling
  • AWS data services
  • ETL/ELT workflows

Operations Manager — Terminaux Vraquiers du Sénégal

Applied data analysis and operational reporting to improve business processes and performance monitoring.


🎓 Education

M.S. Business Analytics — Fordham University Gabelli School of Business · 2025

Master Technique d'Audit et de Contrôle de Gestion BEM Management School · 2023

M.S. Quality, Hygiene, Safety & Environment Management ISM Dakar


🌍 Languages

🇺🇸 English — Fluent 🇫🇷 French — Native


🔎 Areas of Interest

  • Cloud Data Engineering
  • AWS Data Platforms
  • Databricks & Lakehouse Architecture
  • Streaming Data Engineering
  • Data Quality & Governance
  • Data Modeling
  • Analytics Engineering
  • Data Platform Automation
  • AI/LLM-enabled Data Engineering

📫 Connect With Me

📍 New York, USA

💼 LinkedIn

📧 Email


Building data platforms that are reliable, observable, governed, and ready to scale.

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