Junior Data Engineer and BI Specialist with hands-on experience in building end-to-end data solutions—from architecting robust ETL/ELT pipelines to delivering high-impact interactive dashboards. With a strong background in Data Engineering, Machine Learning, and Financial Analytics, I specialize in turning complex datasets into actionable strategic insights.
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I am Ayoub Toujani, a Junior Data Engineer and Business Intelligence specialist dedicated to transforming complex datasets into actionable strategic insights. I hold a Bachelor’s degree in Computer Science and am currently finalizing my Engineering degree in ERP and Business Intelligence.
My expertise spans the entire data lifecycle—from architecting ETL/ELT pipelines and managing robust databases (SQL, NoSQL) to designing interactive dashboards and deploying Machine Learning models. Through my experiences at SIBTEL and Tunisie Telecom, I have developed a strong ability to build end-to-end data solutions that drive real business value.
I am a highly adaptable professional, experienced in working within multicultural environments through AIESEC, and I am currently seeking new opportunities to contribute to data-driven excellence on a global scale.
University: ESPRIT – Private College of Engineering and Technology, Tunis, Tunisia
Specialization: ERP & Business Intelligence
University: Higher Institute of Multimedia Arts (ISAMM), Manouba University, Tunis, Tunisia
School: Omar Kalcheni, Beja, Tunisia
SIBTEL (Société Interbancaire de Télécompensation)
Working within the Data Analytics and Business Intelligence department, I am responsible for modernizing the data infrastructure for interbank teleclearing systems. My role focuses on building resilient pipelines and ensuring high data quality for financial decision-making.
Key Achievements:
- Designed and implemented an end-to-end BI architecture using open-source tools to automate data quality control and analysis for interbank systems.
- Engineered and monitored robust ETL/ELT pipelines using n8n, Apache Airflow, and dbt to manage high-volume transactional data.
- Optimized data reliability by validating and structuring complex referential data within PostgreSQL and TimescaleDB.
- Improved the usability of financial datasets for institutions, enabling more accurate and faster commercial development reporting.
- Leveraged modern Data Stack tools (Airflow, dbt) to shift from legacy processes to a scalable, automated data environment.
Contact: sibtel@sibtel.com.tn
Tunisie Telecom
During my 2-month engineering internship, I had the opportunity to work with the Incident Management team,
where I contributed to transforming raw operational data into actionable insights. I carried out a full Business Intelligence cycle,
from data collection and integration to advanced reporting and predictive analytics.
Key Achievements:
- Designed and implemented ETL pipelines to prepare and load incident data into a centralized data warehouse (PostgreSQL, Talend).
- Built and deployed interactive Power BI dashboards to monitor KPIs such as incident frequency, resolution time, and team performance.
- Integrated dashboards into a web-based frontend interface, enabling managers to access insights in real time.
- Developed and tested Machine Learning models in Python (scikit-learn, Pandas) to predict incident resolution times and anticipate trends.
- Delivered a data-driven solution that supported Tunisie Telecom in shifting from a reactive to proactive approach in managing incidents.
Contact: contact@tunisietelecom.tn
Hatlone Technologies
- Built and improved web applications using Symfony 6, HTML, CSS, and JavaScript.
- Fixed bugs and tested features to make sure everything worked smoothly.
- Helped design and improve the project’s back-end structure.
Contact: contact@hatlone.com
MAE Insurance Tunisia
- Created a mobile app for client management using Flutter.
- Worked with a team in an Agile/Scrum environment.
- Helped design user flows to make the app easy to use.
Contact: linkedin.com/in/nejib-lamloumi-b88867199
End-to-end BI/AI solution to optimize student admissions and alumni employability.
Role: Team Leader (5 months).
- Designed full data pipeline (scraping, AI extraction, ETL, DW).
- Built ML models for predictive analytics & anomaly detection.
- Developed dashboards (Power BI) & Angular frontend for reporting.
Tech: Talend, PostgreSQL, Power BI, Python, Flask, Angular, Jupyter, AI/ML.
BI solution analyzing delays, cancellations, and airline performance.
- Built staging area with SSIS & cleaned raw data.
- Designed a star-schema data warehouse.
- Developed Power BI dashboards showing KPIs (delay rate, canceled flights, punctuality, rankings).
Tech: SSIS, SQL Server, Power BI, DAX, SQL.
AIESEC Tunisia - AIESEC Bardo AIESEC is a global platform for young people to explore and develop their leadership potential. We are a non-political, independent, not-for-profit organization run by students and recent graduates of institutions of higher education. Its members are interested in world issues, leadership, and management. Role: As an Incoming Global Volunteering Member in the Sales Team, I am responsible for connecting with potential partners and organizations to facilitate international volunteer opportunities. Responsibilities: -Sales strategies -Outreach and presentations -Relationship building -Team collaboration Skills Developed: -Communication and negotiation -Leadership and teamwork -Project management and planning
The TOEIC 4 skills test assesses your English language proficiency in listening, reading, speaking, and writing.
The SQL Associate Certification is for anyone working in a job involving SQL or individuals who want to advance their career by verifying vital SQL skills in a data-driven world.
This certificate from DataCamp covers essential AI concepts including the difference between different AI domains, making use of Generative AI ethics.
