Ahmed is available for hire

Ahmed Mukhtar

Verified Expert in Engineering

Database Developer

Location

London, United Kingdom

Toptal Member Since

August 12, 2020

Ahmed is a principal data engineer with over 13 years of experience with data: pipeline construction, modeling, and visualization for companies like Skyscanner, SumUp, Noon, Floranow, OLX, and IBM. He possesses expert-level skills in Python and SQL. He also has hands-on experience developing infrastructure from scratch for cloud-based and on-premise solutions that scale. Ahmed transforms raw data into actionable insights that ensure products function well.

Analytics Data Analytics Data Visualization Data Engineering Data Warehousing Data Warehouse Design Amazon RDS Data Pipelines AWS Lambda SQL ETL Business Intelligence (BI)Python 3 PostgreSQL Microsoft Power BI Netezza

Portfolio

Rightmove

Google BigQuery, Terraform, Google Cloud Platform (GCP), Apache Airflow...

Skyscanner

Databricks, Apache Spark, Python, Marketing Technology (MarTech), ETL, PySpark...

Appex Group, Inc.

Snowflake, Redshift, Business Intelligence (BI), Data Warehouse Design...

Experience

SQL - 11 years Data Warehousing - 10 years Python 3 - 10 years Business Intelligence (BI) - 10 years Apache Kafka - 3 years Google BigQuery - 3 years Apache Airflow - 3 years Snowflake - 2 years

Availability

Full-time

Preferred Environment

Amazon Web Services (AWS), Redshift, Apache Kafka, Snowflake, Python, SQL, Apache Airflow, Google Cloud Platform (GCP), Terraform, Amazon RDS

The most amazing...

...thing I've accomplished is creating data engineering infrastructure and teams from scratch multiple times during my career.

Work Experience

Principal Data Engineer

2024 - PRESENT

Rightmove

Led the implementation of a data mesh for the company.
Oversaw data governance efforts for the company.
Managed the adoption of data products across the company.

Technologies: Google BigQuery, Terraform, Google Cloud Platform (GCP), Apache Airflow, Tableau, Looker, Data Mesh

Senior Data Engineer

2021 - 2024

Skyscanner

Created data pipelines to get a return on investment (ROI) for various channels like Google, Facebook, Criteo, etc.
Acted as the lead engineer for the affiliate's marketing domain.
Revamped existing pipelines with a better fault-tolerant solution.

Technologies: Databricks, Apache Spark, Python, Marketing Technology (MarTech), ETL, PySpark, Data Engineering, Data Visualization, Terraform, Reporting, AWS Lambda, Data Build Tool (dbt), Data Warehouse Design, Data Warehousing, SQL, Tableau, Redshift, Test-driven Development (TDD), Apache Airflow, Amazon Athena, Cloud, Digital Marketing, Data, PostgreSQL, Data Architecture, Analytics

Snowflake Data Engineer

2022 - 2023

Appex Group, Inc.

Set up the marketing data infrastructure from scratch.
Made integrations with various marketing partners like Apple store connect, Apple search ads, mixpanel, AppsFlyer, etc.
Created marketing dashboards for the back and front ends.

Technologies: Snowflake, Redshift, Business Intelligence (BI), Data Warehouse Design, Query Optimization, PostgreSQL, ETL, Data Engineering, Data Visualization, Reporting, Data Architecture, Data Build Tool (dbt), Data Warehousing, SQL, Tableau, Test-driven Development (TDD), Apache Airflow, Python, Cloud, Digital Marketing, Data, Azure, Looker, Analytics

Senior Data Engineer

2020 - 2021

SumUp

Migrated the SumUp data warehouse from the legacy PostgreSQL data warehouse to Snowflake.
Created the data warehouse access management framework for 1,000+ SumUp employees.
Designed and implemented data marts and models on Snowflake capable of real-time and batch ingestion.

Technologies: Snowflake, Apache Kafka, Data Lakes, Streaming, MySQL, ETL, Data Engineering, Data Visualization, Terraform, Reporting, Data Architecture, AWS Lambda, Data Build Tool (dbt), Data Warehouse Design, Data Warehousing, SQL, Business Intelligence (BI), Tableau, Redshift, Test-driven Development (TDD), Apache Airflow, Python, Cloud, Data, PostgreSQL, Analytics

Lead Data Engineer

2019 - 2020

Noon

Developed a no-code self-service ETL platform for data analysts using Apache Airflow.
Developed data marts for various business areas, including marketplace, warehouse operations, marketing, retail, logistics, and finance.
Created a pricing engine using internal and external competition data (data scraping).
Established the team and represented data engineering to internal and external stakeholders.
Created multiple dashboards covering multiple aspects of eCommerce business using Tableau and Power BI.

Technologies: Google Cloud Storage, Google BigQuery, Composer, Google, Apache Airflow, Apache Kafka, PostgreSQL, MySQL, ETL, BigQuery, Data Engineering, Microsoft Power BI, Data Visualization, Reporting, Data Architecture, AWS Lambda, Azure, Data Warehouse Design, Data Warehousing, SQL, Business Intelligence (BI), Tableau, Python, Cloud, Digital Marketing, Data, Looker, Analytics

Lead Data Engineer

2017 - 2019

Fetchr

Established and led the data engineering and BI team for Fetchr.
Represented the data team in various audits and due diligence exercises for compliance and fund raising.
Created end-to-end data infrastructure capable of catering to company-wide data requirements.

Technologies: Amazon Web Services (AWS), Amazon Elastic MapReduce (EMR), Amazon S3 (AWS S3), Redshift, PostgreSQL, MySQL, Amazon RDS, ETL, Data Engineering, Data Visualization, Reporting, Data Architecture, Data Warehouse Design, Data Warehousing, SQL, Business Intelligence (BI), Tableau, Apache Airflow, Python, Cloud, Data, Analytics

Senior Data Engineer

2015 - 2017

Dubizzle (Nasper Classifieds)

Created an attribution and recommendation engine that decreased market spend by 30 percent.
Created an in-house tool for easy integration with various APIs and databases.
Managed all aspects of data warehousing including ETL (Pentaho Data IntegraRon), database designs, BI reporting (microstrategy) and the day-to-day data warehouse operations.

Technologies: Amazon Web Services (AWS), Amazon S3 (AWS S3), Digital Marketing, SQL, Python, Excel 365, ETL, Data Engineering, Data Visualization, Reporting, Data Warehouse Design, Data Warehousing, Business Intelligence (BI), Redshift, Cloud, Data, Data Architecture, Analytics

Business Analytics and Data Warehousing Consultant

2014 - 2015

IBM

Designed and implemented the ETL for Etisalat Telecom UAE (IBM telecommunications data model).
Implemented the data model for predictive analytics for server incident reduction for IBM data centers.
Worked as an IBM DB2 and Netezza database administrator.

Technologies: Netezza, IBM Db2, SQL, Python, IBM Cognos, Data, Excel 365, ETL, Reporting, Data Warehousing, Data Architecture, Analytics

Experience

Implementation of DWH on Google BigQuery with Real-time Data Ingestion

I created a real-time data pipeline by reading MySQL bin logs, pushing the data to Google Pub/Sub, and ingesting them in real time to Google BigQuery. The entire infrastructure functions at approximately 1TB of data per day.

Snowflake Data Warehouse Implementation with Real-time Data Ingestion

I implemented an end-to-end data warehouse on AWS using Snowflake. I implemented changes to data capture from source systems and real-time ingestion using snowpipes. I created a framework to implement all schema changes using Liquibase.

Skills

Languages

Python 3, SQL, Snowflake, Python

Libraries/APIs

PySpark

Tools

Apache Airflow, Tableau, BigQuery, Microsoft Power BI, Terraform, Looker, Amazon Elastic MapReduce (EMR), Amazon Athena, Composer, IBM Cognos, Cloud Dataflow

Paradigms

Business Intelligence (BI), Test-driven Development (TDD), ETL

Platforms

Apache Kafka, Google Cloud Platform (GCP), Amazon Web Services (AWS), Databricks, AWS Lambda, Azure

Storage

Database Modeling, Redshift, Amazon S3 (AWS S3), Data Lakes, PostgreSQL, MySQL, Data Pipelines, Google Cloud Storage, IBM Db2, Netezza

Other

Data Engineering, Google BigQuery, Data Warehousing, Data Warehouse Design, Marketing Technology (MarTech), Query Optimization, Data Visualization, Amazon RDS, Excel 365, Reporting, Data Architecture, Data Build Tool (dbt), Analytics, Data Mesh, Data Analytics, Machine Learning, Machine Learning Operations (MLOps), Google, Cloud, Storage, Digital Marketing, Data, Change Data Capture, Streaming, Artificial Intelligence (AI)

Frameworks

Apache Spark

Education

2006 - 2010

Bachelor's Degree in Compter Engineering

National University of Science and Technology - Pakistan

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