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GeraldM

Data Engineer

Nairobi, Kenya. Joined on Jan 13, 2026 geraldmuchuku237@gmail.com https://github.com/GeraldM-007

Cover image for Guide to Installing and Configuring Apache Airflow 3.2.0 with PostgreSQL and Running Your First DAG

GeraldM

May 2

Guide to Installing and Configuring Apache Airflow 3.2.0 with PostgreSQL and Running Your First DAG

#airflow #postgres #dag #beginners

7 min read

Cover image for A Beginners Guide to Apache Airflow

GeraldM

May 2

A Beginners Guide to Apache Airflow

#dataengineering #airflow #automation #beginners

5 min read

Cover image for ETL vs ELT: Which one should you use and why?

GeraldM

Apr 18

ETL vs ELT: Which one should you use and why?

#beginners #etl #elt

9 min read

Cover image for Getting Started with OpenClaw: A Step-by-Step Guide to Setting Up OpenClaw on a VPS

GeraldM

Apr 4

Getting Started with OpenClaw: A Step-by-Step Guide to Setting Up OpenClaw on a VPS

#openclaw #ai #opensource

9 min read

Cover image for Connecting Power BI to PostgreSQL Database

GeraldM

Mar 15

Connecting Power BI to PostgreSQL Database

#beginners #postgres #postgressql

7 min read

Cover image for Understanding Joins and Window Functions in SQL

GeraldM

Mar 1

Understanding Joins and Window Functions in SQL

#database #sql #postgres #beginners

5 min read

Cover image for How Analysts Translate Messy Data, DAX, and Dashboards into Action Using Power BI

GeraldM

Feb 8

How Analysts Translate Messy Data, DAX, and Dashboards into Action Using Power BI

#powerbi #datascience #analytics

3 min read

GeraldM

Feb 1

Understanding Schemas and Data modeling in Power BI

#analytics #beginners #data #microsoft

5 min read

GeraldM

Jan 25

Introduction to Linux for Data Engineers, Including Practical Use of Vi and Nano with Examples

#linux #dataengineering #vim #nano

6 min read

GeraldM

Jan 17

Git Bash (Pull and Push code, track changes and version control)

#git #github #versioncontrol #pushandpull

6 min read

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