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wasfi_sam

Wasfi S

@wasfi_sam

Business Intelligence Engineer

Sudáfrica
Inglés
Parte de la información aparece en idioma inglés.
Sobre mí
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.... Lee más

Habilidades

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wasfi_sam
Wasfi S
desconectado • 

Revisa mis servicios

Diseño y optimización
I will debug and optimise your google bigquery sql queries
DeUSD 65 / proyectoMás información

Experiencia laboral

takealot

takealot

Tiempo completo • 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.

First_National Bank GH

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.