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Karim Mohamed

@karimmohamed4

Senior Data Engineer at Datex Inc. who designed a Delta Lake lakehouse and cut Spark compute costs by 43%.

At Datex Inc., I build and maintain Databricks and Azure Data Factory pipelines processing 2TB of data per day. I designed a Delta Lake lakehouse that powers real-time data products used by three downstream teams.

I optimized Spark jobs, SQL queries, and data workflows at Datex Inc., cutting compute costs by 43%. I also automated ingestion, transformation, and validation with Python and SQL.

Before Datex Inc., I designed data models and integration workflows at E& Egypt (Etisalat) and Commercial International Bank (CIB). Through freelance work via Proxify, I delivered Snowflake and dbt ELT pipelines and migrated legacy databases to Snowflake.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Engineer

Current

Datex Inc.

Mar 2025 - Present (1 year 7 months)

Build and maintain ETL/ELT pipelines on Databricks, Spark SQL, and Azure Data Factory, processing 2TB/day of data. Designed a Delta Lake lakehouse architecture and optimized Spark jobs, cutting compute costs by 43%.

Databricks Spark SQL Azure Data Factory Delta Lake Python SQL ETL ELT Data Engineering

Data Engineer

Proxify

Jan 2023 - Apr 2025 (2 years 3 months)

Designed and delivered end-to-end ELT pipelines on Snowflake and dbt for multiple clients. Migrated legacy databases to Snowflake, applying dimensional modeling and tuning to improve performance and reduce costs.

Snowflake DBT Snowpipe Streaming Task ELT Dimensional Modeling Data Migration

Data Engineer

E& Egypt (Etisalat)

Mar 2024 - Mar 2025 (1 year)

Partnered with stakeholders to translate business needs into data architectures across Finance, E-Commerce, and Sales. Designed star schemas and ETL processes, reducing average query time by 33%.

Data Architecture Star Schemas ETL Data Modeling ER Diagrams SQL

Data Engineer

Commercial International Bank (CIB)

Sep 2022 - Mar 2024 (1 year 6 months)

Designed high-throughput data integration solutions using Teradata SQL and shell scripting for retail banking systems. Monitored and optimized workflows, cutting SLA misses by 95%.

Teradata Shell Scripting Data Integration Data Mapping Data Modeling ETL

Education

Degrees, certifications, and relevant coursework

Information Technology Institute (ITI)

Diploma in Business Intelligence, Business Intelligence

2022 - 2022

Selective, government-backed intensive program covering data warehousing, ETL, data mining, OOP, and BI storytelling; graduated into a data engineering role at CIB directly on completion.