Wassim Slim

Senior BI Consultant & Data Engineer | Power BI

Salary / Daily rate

Freelance

Skills

Power BIData Engineering

Languages

English

About me

Intro

Microsoft Certified BI Consultant & Data Engineer with 4+ years expertise in Power BI, Azure Data Factory, and ETL automation. Successfully designed financial models for multi-entity groups and automated data flows at Airbus and major retail chains. Specialized in DAX, Azure cloud solutions, and dashboard development for data-driven decision making.

Links

Work experience

Business Intelligence Developer

Metam

Oct 2024 - Present

2 years 1 month

Tunis, Tunisia

Designed a consolidated financial model for a multi-entity group with role-based access security (RLS). - Gathered business requirements and defined KPIs aligned with strategic objectives. - Developed financial and operational reports (projects, payroll, invoices, General Ledger) to improve business visibility and decision-making. - Built multi-source ETL pipelines using Azure Data Factory and Synapse Analytics. - Automated synchronization of Dataverse tables and Power BI dataset documentation via DMVs, AI Builder, and Power Automate. - Designed interactive dashboards and tabular models in Power BI and Azure Analysis Services. - Managed versioning and CI/CD deployment of Power BI models and data integration pipelines in Azure DevOps. - Collaborated with clients to ensure adoption and effectiveness of delivered solutions. Tools: Power BI, DAX, Power Query, Azure Data Factory, Synapse, Azure Analysis Services, Azure SQL, Azure Functions (.NET 8), REST API, Azure DevOps, Dataverse, D365 F&O & Project Operations, Power Automate, Excel VBA, TypeScript

Business Intelligence Consultant

مغازات عزيزة Magasins Aziza

Feb 2024 - Oct 2024

9 months

Ben Arous, Tunisia

- Centralized and automated data flows (sales, finance, marketing) across multiple systems. - Automated data exports to Google Sheets/Drive, eliminating repetitive manual tasks. - Optimized Power BI data models, improving reporting speed and reliability. - Developed QlikView dashboards to track SMS campaigns and conversion rates in real time.

Data analyst Intern

Airbus

Apr 2023 - Oct 2023

7 months

Toulouse, France

Design and development of an automated budget tracking and reporting solution : - Analyzed budget tracking data to provide actionable insights and recommendations for financial optimization. - Built an ETL script to extract, transform, and centralize data, automating reporting processes and reducing manual workload. - Partnered with 6 aerospace quality engineering business managers across Europe to define and harmonize process efficiency KPIs. - Designed interactive dashboards enabling real-time KPI monitoring and data-driven decision-making. Tools: Google Sheets, JavaScript (Apps Script), Looker Studio, Skywise

Web Development Instructor

Go My Code

Feb 2022 - Dec 2022

11 months

Tunis, Tunisia

- Trained student groups on backend technologies. - Supported projects from design to production deployment. - Applied active learning to simplify complex concepts (MVC, APIs, Git).

Mentor

MentorNations

Jul 2021 - Oct 2021

4 months

Tunis, Tunisia

• Coaching and mentoring of a team of developers during their WEB, mobile and IOT project • Development of the administrative part of the Eskills application and contribution to the development of a streaming module

Full Stack Developer Intern

KNSD

Jan 2020 - Jul 2020

7 months

Tunis, Tunisia

Designed and created a CRM system and a decision-making tool that incorporated dashboards, aiming to ensure strategic monitoring of the activity of the Kpeiz application: - Designed web components and developed a REST API service through the utilization of the MVC architecture. - Migrated data from SQL to NoSQL through the implementation of a cron job. - Generated reports to track customer activity within the Kpeiz application.

Java Developer Intern

Ooredoo Tunisie

Jan 2019 - Mar 2019

3 months

Tunis, Tunisia

Developed a commercial marketing module for file management, calendar, and bug tracking : - Developed the user interface using Angular - Created REST API services using Spring Boot and MYSQL, - Integrated security with Spring Security, - Managed dependencies with Maven.

Data Analyst Intern

ETAP

Jan 2018 - Mar 2018

3 months

Tunis, Tunisia

- Data transformation using SQL queries for specific needs - Data collection, cleaning, and integration with SSIS - In-depth data analysis with SSAS. - Creation of user-friendly dashboards with SSRS.


Education

ESPRIT

National Engineer’s Degree in Computer Information Systems

2020 - 2023

3 years 2 months

Higher Institute of Technological Studies of Charguia (ISET Charguia)

Applied Bachelor's Degree in Information Technology

2017 - 2020

3 years

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