Freelancer profile translated to English.
Back to original languageAbout Ammar
Je suis ingénieur senior en Data & Business Intelligence, avec une expertise en architecture de données, entrepôts de données et systèmes décisionnels.
J’interviens sur l’ensemble de la chaîne de valeur de la donnée, avec une approche pragmatique couvrant l’architecture, l’intégration et la qualité des données, jusqu’à leur mise à disposition et au reporting décisionnel. Mon approche met l’accent sur la convergence entre environnements existants, plateformes de données modernes et besoins métiers.
En 2023, j’ai fondé BI Systems, une société de conseil indépendante spécialisée en data engineering et business intelligence. J’accompagne aujourd’hui les organisations en tant que consultant indépendant dans la structuration, la migration et la valorisation de leurs actifs de données.
Auparavant, j’ai travaillé plus de 22 ans chez Hewlett Packard et Hewlett Packard Enterprise, dans des environnements internationaux, sur des rôles couvrant l’ingénierie logicielle, l’architecture des systèmes, l’informatique décisionnelle, le management de la qualité et la direction de programmes.
J’apprécie particulièrement relever des défis complexes liés à la donnée et collaborer avec des parties prenantes techniques et métiers.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Remote only
Primarily works remotely
Experience
- FreelanceData & Business Intelligence ConsultantENERGY AND UTILITIESApril 2023 - April 2026 (3 years)Grenoble, FranceIndependent consultant in data and BI within my consulting firm (BI Systems).Intervention on a large-scale data migration project for an energy sector player, as part of the transition from the source ERP (eFluid) to SAP.As part of this project, I performed reverse engineering of the source ERP, designed the architecture of the pivot model, and carried out data extraction and transformation to this pivot. I developed programs to detect and process data anomalies blocking the migration, as well as non-regression test suites. In parallel, I implemented programs for detecting quality issues in Salesforce and ensured the feeding of a data warehouse.Technologies and tools: FME ETL, Oracle, PostgreSQL, SOQL, Python, DBT, Jira, Confluence, SVN.
- Hewlett Packard EnterpriseBusiness Intelligence Solution ArchitectSOFTWARE PUBLISHINGDecember 2014 - November 2022 (7 years and 11 months)Grenoble, FranceCommunications Technology Group Design and implementation of a Business Intelligence system for the CTG installed base, relying on several data sources.-Architected and designed a data warehouse for the HPE Communication & Media Solutions organization (a $150M business word wide organization),- Implemented data extraction and transformation using Talend from SAP BW/EDW/S4, and BOE.- Defined and implemented static BI reporting using SpagoBI/BIRT and SQL queries in Excel.- Led a team to maintain this data warehouse solution and maximize the outcome.
- HPQuality ManagerSOFTWARE PUBLISHINGMarch 2010 - December 2014 (4 years and 9 months)Grenoble, FranceCommunications & Media Solutions Business Unit- Lead the quality assurance of several products/solutions- Strategy and adoption of software engineering tools- Quality assessments and improvement projects
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Education
- Ph.D. Computer Science, Artificial Intelligence and RoboticsInstitut National Polytechnique de Grenoble1992Ph.D. Computer Science, Artificial Intelligence and Robotics
- DEA, Computer ScienceENSIMAG1986DEA, Computer Science