
Ahmed Mukhtar
Verified Expert in Engineering
Database Developer
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.
Portfolio
Experience
- SQL - 13 years
- Python 3 - 11 years
- Data Warehousing - 11 years
- Business Intelligence (BI) - 10 years
- Google BigQuery - 5 years
- Apache Airflow - 3 years
- Apache Kafka - 3 years
- Snowflake - 2 years
Availability
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
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.
BI Developer
VAS Group
- Created complex datasets and analysis on AWS quicksight using Postgres Aurora.
- Optimized back end for AWS Quicksight dashboard by creating layered datasets.
- Extracted complex logic from quicksight calculated fields and implemented it in SQL.
Data Engineer
PepsiCo
- Implemented a Snowflake infrastructure using Terraform.
- Migrated hundreds of terabytes of data from Teradata to Snowflake.
- Utilized dbt, Apache Airflow, Snowflake, Terraform, and Alembic for data engineering tasks.
Senior Data Engineer
Skyscanner
- Created config-driven data pipelines using Databricks with PySpark to push events (clicks/revenue) data to marketing platforms like Google Ads, Facebook Business Manager, and Criteo by calling their APIs.
- Created delta tables and DLT pipelines with autoloader for both batch and real-time stream ingestion use cases.
- Configured Unity Catalog for access management, lineage, and data discovery use cases.
- Created Terraform modules to manage the AWS infrastructure.
Snowflake Data Engineer
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.
Senior Data Engineer
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.
Lead Data Engineer
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.
Lead Data Engineer
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 fundraising.
- Created end-to-end data infrastructure capable of catering to company-wide data requirements.
- Built near real-time operational dashboards using AWS QuickSight for the logistics operations team.
- Developed a strategic dashboard directly for the CEO's and COO's visibility using AWS QuickSight.
Senior Data Engineer
Dubizzle (Nasper Classifieds)
- Built an attribution and recommendation engine that decreased market spend by 30%.
- Created an in-house tool for easy integration with various APIs and databases.
- Managed all aspects of data warehousing, including ETL (Pentaho Data Integration), database designs, BI reporting (MicroStrategy), and the day-to-day data warehouse operations.
Business Analytics and Data Warehousing Consultant
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.
Experience
Implementation of DWH on Google BigQuery with Real-time Data Ingestion
Snowflake Data Warehouse Implementation with Real-time Data Ingestion
Education
Bachelor's Degree in Compter Engineering
National University of Science and Technology - Pakistan
Skills
Libraries/APIs
PySpark
Tools
Apache Airflow, Tableau, BigQuery, Microsoft Power BI, Terraform, Looker, Amazon QuickSight, Amazon Elastic MapReduce (EMR), Amazon Athena, Composer, IBM Cognos, Cloud Dataflow
Languages
Python 3, SQL, Snowflake, Python
Paradigms
Business Intelligence (BI), Test-driven Development (TDD), ETL
Platforms
Apache Kafka, Google Cloud Platform (GCP), Amazon Web Services (AWS), Databricks, AWS Lambda, Azure, Google Ads
Storage
Database Modeling, Redshift, Amazon S3 (AWS S3), Data Lakes, PostgreSQL, MySQL, Data Pipelines, Google Cloud Storage, IBM Db2, Netezza
Frameworks
Delta Live Tables (DLT), Apache Spark
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, Documentation, Data Modeling, Machine Learning, Machine Learning Operations (MLOps), Google, Cloud, Storage, Digital Marketing, Data, Change Data Capture, Streaming, Artificial Intelligence (AI)
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