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Wasfi S
@wasfi_sam
Business Intelligence Engineer
Sudafrica
Inglese
Chi sono
I am a Business Intelligence Engineer with experience building and optimizing data pipelines, data models, and BI solutions using BigQuery, Dataform, Looker, SQL, and Python. I have a proven track record of translating business requirements into scalable analytics products, improving reporting performance, and reducing query costs across e-commerce and financial services.
Competenze
Wasfi S
offline •
Consulta i miei servizi
Progettazione e ottimizzazione
I will debug and optimise your google bigquery sql queries
Esperienza lavorativa
takealot
Full time • 2 yrs 5 mos
Business Intelligence engineer II
Jan 2025 - Present • 1 yr 9 mos
Responsible for building and maintaining data pipelines using Dataform and BigQuery, and building dashboards using Looker. Tasks include gathering requirements from stakeholders, documenting processes on Notion, and data modeling. Successfully reduced query costs by 90% by optimizing backend data pipelines for Looker reports.
Data analyst
Apr 2024 - Dec 2024 • 8 mos
Responsible for building and maintaining reports and dashboards using Looker, Excel, Google BigQuery, and Python. Focused on converting server code from SQL to Google BigQuery. Accomplishments include significantly improving the speed of critical report generation for the business.
Data Engineer
First National Bank GH
Dec 2022 - Mar 2024 • 1 yr 3 mos
Responsible for building and maintaining end-to-end data products. Developed Python-based ingestions and automation workflows for data movement and processing. Performed advances analyses using SQL, Python, SAS to identify trends and support business decision-making.
