Freelancer profile translated to English.
Back to original languageAbout Oussama
As a Business Intelligence engineer, I distinguish myself with an approach that is rigorous, versatile, and results-oriented. My career has allowed me to work across the entire decision-making chain, from data extraction to its enhancement through dynamic and relevant dashboards.
My mastery of integration tools like Talend, Informatica, or Pentaho, coupled with solid experience in database modeling (relational, dimensional, or Data Vault), enables me to design robust, scalable architectures tailored to my clients' challenges.
I have also developed strong expertise in visualization tools such as Power BI, Tableau, or Sisense, with particular attention to ergonomics, readability, and the relevance of indicators.
What characterizes me is my ability to adapt quickly to varied technical and functional environments, to quickly gain skills in new tools or business contexts, and to propose concrete, clear, and directly usable solutions for users.
I fully invest myself in each mission with a dual requirement: technical quality and business impact. I place great importance on communication with stakeholders, a thorough understanding of functional needs, and transparency in project management.
In summary, I am a complete BI engineer, capable of navigating with ease between technical and functional aspects, between raw data and strategic decision-making. My goal: to transform data into a lever for sustainable performance.
English
Native or bilingual
French
Native or bilingual
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- PIXID SASBI EngineerSeptember 2022 - July 2025 (2 years and 10 months)Courbevoie, FranceContextImproving the Business Information System (BIS) to ensure its compliance with regulatory, technological, and business evolutions in the temporary employment sector.AchievementsAnalysis & Scoping:• Analysis of business needs in collaboration with functional teams.• Definition of expected deliverables (reporting, KPIs, dashboards).Architecture & Installation:• Installation and configuration of the Talend Engine remote engine.• Migration of the CSX data warehouse to ClickHouse.ETL Development & Automation:• Design, development, and optimization of ETL flows with Talend.• Migration of ETL processes from Pentaho to Talend On-Premise.• Automatic creation of Sales Orders in NetSuite via Talend.• Redesign and automation of billing processes.• Development of feeding flows from Datastage to Datamart.• Integration of new libraries into the Talend environment (JSON, XML, etc.).• Writing Unix Shell and SQL scripts to feed the Datamart.Orchestration & Supervision:• Implementation of job scheduling with Rundeck.• Daily and weekly monitoring of application controls.Tests & Validation:• Performance of unit tests, functional acceptance testing, and validation of developments.BI & Reporting:• Creation of dynamic dashboards with Sisense for various departments.• Design and optimization of complex data models with Sisense, using Elasticubes to ensure performance and scalability.• Implementation of customer scope management via the Data Security feature, ensuring strictly controlled data access based on user profiles.• Centralized management of translations in reports and dashboards for a fluid and coherent multilingual experience.Maintenance & Continuous Improvement:
- DataServicesBI EngineerJune 2020 - July 2022 (2 years and 1 month)Automation of data processing, ETL flow development, and BI reporting, Salesforce integration, and business process modeling.Achievements• Development of feeding flows.• Documentation of developments.• Analysis of needs and deliverables.• Development of BI reports and dashboards with PowerBI.• Unix Shell and SQL scripts.• Development of generic Talend jobs for automatic extraction of reports and their secure deposit in SFTP directories dedicated to each client.• Automated creation of customer opportunities in Salesforce using native Talend components.• Analysis of processes and business modeling.• Bug and anomaly correction.• Development of BI reports and dashboards.Oracle database 11g, Talend, Putty, Shell, Pentaho Data Integration, JIRA, Power BI.
- AmrisBI EngineerOctober 2018 - April 2020 (1 year and 6 months)• Analysis of needs and modeling (star schema, aggregates).• Development of feeding flows.• ETL development under Pentaho (PDI) and multi-source data integration.• Evolutionary maintenance, acceptance testing, and production deployment.• Reporting under Pentaho Analyzer and Interactive Reports.• Development of a Java parser to automate the extraction and translation of cube labels (dimensions and indicators), with generation of internationalization files and integration of translations into Pentaho.• Development of a PHP interface for build monitoring with visual indicators (color coding) to facilitate monitoring.
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Education
- UX Design CertificationCertification UX Design
- Computer Engineering DegreeENSIIE2018Diplôme d'ingenieur informatique
Certifications
- Cisco Networking Academy – CCNA 1 to CCNA 4 (Routing & Switching)Cisco Systems2016
- Talend Cloud Data IntegrationCoursera2025