
Wassim Slim
Senior BI Consultant & Data Engineer | Power BI
Salary / Daily rate
Freelance
Skills
Languages
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.
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