
Ismail Affaf
Senior Data Engineer | BigQuery & Airflow
Salaire / Taux journalier
Paris, France
Freelance
À distance uniquement
Expertises
Langues
À propos
Introduction
Senior Data Engineer with 6+ years building scalable cloud data infrastructure across GCP and AWS. Specialized in orchestrating end-to-end ELT pipelines using Airflow, DBT, and Spark, with proven success reducing infrastructure costs by 30% and cutting ETL execution time by 20%. Expert in modernizing data warehouses from on-premise to cloud (BigQuery/Snowflake) with strong DataOps practices and CI/CD automation to accelerate your data-driven decisions.
Expérience de travail
Senior Data Engineer
Worldia
mai 2023 - Présent
3 ans 6 mois
À distance
– Data Pipelines Implementation from scratch the full orchestrated ELT pipelines feeding the Datawarehouse Bigquery and hoster the application on google cloud based on Kubernetes. – Data modeling Led data modeling and build various tables and dashboards to provide insights to answer key analytical questions. – Data ops Build Airflow and DBT on top of GKE and industrialize the CI/CD pipe – Technical Stack GCP, AWS, BigQuery, Airflow, DBT, SQL, Kubernetes, Spark, gitlab Data viz Looker, metabase
Data Engineer
Metro
déc. 2022 - avr. 2023
5 mois
À distance
– Delivered full Bigquery and DBT training for different Metro department (100+ users). – Providing production best practises for airflow and DBT in data pipeline and led migration towards Databricks (Spark). – Participate in the Migration from on-premise datawarehouse (Teradata) and Control-M scheduler towards Google cloud stack based on Bigquery/Snowflake and airflow (google compose) – Technical Stack GCP, BigQuery, Snowflake, Airflow, DBT, SQL, Kubernetes, gitlab *Data viz: Looker, metabase
Data Engineer
Younited
juin 2022 - déc. 2022
7 mois
Paris, France
– Data Ops industrialize ETL/ELT (spark and dbt) data pipeline(ci/cd) and build dashboard for DW data quality on Looker Studio – Designing and implementing server-less event-driven architecture and pipeline for data ingestion from azure storage to Google storage and processing data in Snowflake load reducing 30 percent of the resource utilization vi DBT
Data Engineer
Branded
juin 2021 - juin 2022
1 an 1 mois
Paris, France
– Deliver Data engineering solutions supporting cloud platform analytics and data insights for the business. – Led modeling data and writing data ETL/ELT pipelines to provide datasets to answer key analytical questions. – Performing exploratory data analysis and integration of new datasets via different data sources (scrapping, api...). – Technologies(Data Stack): GCP, Cloud function (serverless architecture), Biguery, Snowflake, Terraform, Airflow, DBT, Spark/Beam, Looker. Tools: Python, Scala, Kubernetes (Docker), Gitlab(CI/CD). Agile method: Scrum. *Data viz: Looker, Power BI
Data Engineer
Capgemini - Amadeus IT
oct. 2018 - juin 2021
2 ans 9 mois
Nice, France
– Automated ETL processes, making it easier to wrangle data and reducing 20% of ETL's execution time. – Reduce critical ETL's error detection time from 20 min to 5 min using live alerting based on Prometheus. – Led efforts to migrate team apps toward and on-demand based cloud reducing infrastructure costs. – Developed a Spark NLP based hotel recommendation model trained on data from Web scraping of hotels reviews. – Technologies (Data Stack): Spark, SQL, Oozie, Hive, Sqoop, Hadoop, Qlik sense. Tools: Python, Scala, Kubernetes. Agile method: SAFe.
Data Scientist intern/Forecast of customers moves
Credit Agricole Bank
mars 2018 - sept. 2018
7 mois
Paris, France
– Developed a deep learning model to analyze the purchasing behavior of the clients and predict their moves. – Increased the recall of the customer behavior forecast model by 6 % by utilizing attribute dependencies over time. – Technologies: TensorFlow, Python, SQL. Agile method: Scrum.
Formation
Lorraine University
BS/MS, complex systems engineering
2017 - 2018
7 mois
ENSEM Nancy
BS/MS, Applied Maths
2016 - 2018
1 an 7 mois
– GPA: 3.5
Mines of Rabat School
BS/MS of Engineering, Computer Science (BI track)
2014 - 2016
1 an 11 mois
– GPA: 3.8