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Ng'ang'a NjongoNN
Looking for a job

Ng'ang'a Njongo

@nganganjongo

I build reliable data pipelines, warehouses, and real-time streaming systems.

Kenya
Message

What I'm looking for

I'm seeking a remote Data Engineering role where I can build production data pipelines and deepen my experience with modern open-source streaming, orchestration, and distributed data tools.

A results-driven Senior Data Engineer with over 6 years of experience at Safaricom PLC, specializing in designing, building, and optimizing large-scale data pipelines and data warehouses. Proven expertise in migrating massive datasets (600TB) to modern infrastructure, re-architecting warehouse designs for performance, and automating data lifecycle management, achieving a 50% performance improvement.

Proficient in a wide range of technologies including Oracle, Informatica, SQL, and various ETL tools, and has since expanded into the modern open-source data stack — Apache Airflow, Kafka, Python, Apache Spark, PostgreSQL, and Cassandra — through hands-on pipeline development.

Experience

Work history, roles, and key accomplishments

Safaricom PLC logoSP
Current

Senior Data Analytics Engineer

Safaricom PLC

Feb 2022 - Present (4 years 8 months)

Led migration of 600TB Oracle data warehouse to clustered Exadata infrastructure with zero data loss. Redesigned tablespace architecture and automated ILM, improving performance by 50%.

Safaricom PLC logoSP

Business Intelligence & Analytics Support

Safaricom PLC

Apr 2019 - Jan 2022 (2 years 9 months)

Supported BI environment ensuring high availability across data ingestion, ETL, and reporting. Managed AIX server space and collaborated with DBA team on data storage optimization.

M-Kopa logoMK

Business Intelligence Developer

May 2018 - Mar 2019 (10 months)

Developed self-service Power BI reporting tools and automated accounts receivable reporting across multiple countries. Created customer churn report to drive retention and upsell opportunities.

VL

Lead Accounts and Analytics Manager

Virtual City Ltd

Jul 2017 - May 2018 (10 months)

Acted as lead point of contact for key accounts, providing technical guidance and translating business requirements into analytics solutions. Guided prototype development and deployments for supply chain clients.

VL

Business Intelligence Developer

Virtual City Ltd

Apr 2016 - Jun 2017 (1 year 2 months)

Developed and optimized SQL queries for data extraction from various sources. Created operational reports, dashboards, and maps using Power BI for supply chain management.

Education

Degrees, certifications, and relevant coursework

Jomo Kenyatta University of Agriculture and Technology logoJT

Jomo Kenyatta University of Agriculture and Technology

Bachelor of Science, Telecommunication and Information Engineering

2008 - 2012

Bachelor of Science in Telecommunication and Information Engineering from Jomo Kenyatta University of Agriculture and Technology, completed from 2008 to 2012.

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