Freelancer profile translated to English.
Back to original languageAbout Fatima Ezzahra
Data expert and Tech Lead in application integrations, with over 10 years of experience in implementing ETL/ELT pipelines and developing interfaces between information systems.
Specialist in Workday, Talend, Oracle, Snowflake, APIs, and Data Warehouse, I work on international data migration and SI transformation programs, ensuring the design, development, and reliability of interface flows between HR, Finance, and business systems.
Strong expertise in implementing Workday integrations and orchestrating data flows between different applications, I contribute to securing inter-system exchanges, improving data quality, and ensuring the robustness of production processes.
I combine technical expertise, analytical skills, and technical coordination to support project teams in implementing reliable and high-performing integrations.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Viridien Group (ex-CGG)Tech Lead Data Workday & Technical Project ManagerENERGY AND UTILITIESMarch 2023 - Today (3 years and 5 months)Context:Participation in the global deployment and integration program ofWorkday HCMin an international environment, with a role ofWorkday Tech Leadfor integrations and multi-team technical coordination. End-to-end responsibility for HR/Finance integrations and data flows between Workday and the IS application ecosystem (Talend, Oracle DWH, Salesforce, Cegedim, Kyriba, Sage, ATLAS). Responsible for providing and ensuring the reliability of HR data viaWorkday Report Writer(Custom Reports, Matrix Reports, Discovery Boards) as well as associated governance (security, scheduling, RUN, and flow quality).Roles & Responsibilities:• Tech Lead on Workday HR/Finance projects: technical steering of evolutions and integrations, requirements scoping, prioritization, and coordination of IT, Data, and HR teams (France/US) in an Agile environment.• Design and implementation of Workday integrations: PECI, EIB, Workday Studio, Core Connectors, SOAP/REST APIs, and file interfaces.• Management of the interface between Workday and IS systems to ensure reliable flow of HR, payroll, and financial data.• Contribution to the Workday data chain towards data and BI platforms: flow orchestration via Talend, quality controls, and data reliability.• Analysis of HR/payroll needs and implementation of solutions via Workday Report Writer.• Design and optimization of advanced reports (Custom Reports, Matrix Reports, Discovery Boards) and implementation of reporting governance (security, access, scheduling).• Supervision and participation in application RUN (L2/L3 support).• Production of technical documentation and facilitation of technical workshops.Technical Environment:Workday Report Writer · Workday Security · Workday Integration Suite (PECI, Studio, Core Connectors) · Talend ESB/DI · Oracle PL/SQL · XSLT/XPath · Azure · Fabric · Power BI · SOAP/REST APIs · Jira.
- Groupe KeolisTechnical Project Manager MediationTRANSPORTATIONSeptember 2020 - June 2022 (1 year and 9 months)Paris, FranceContext:Participation in the Keolis HR/Payroll mediation and centralization program, in a context of Data architecture modernization, technological migration, inter-IS rationalization, and multi-subsidiary deployments. Implementation of Talend Big Data / ESB platforms, creation of real-time flows, industrialization of interfaces, and support for French and international teams.Key Roles & Responsibilities:
- Steering the mediation platform and inter-IS flows (real-time & batch)
- Talend 6.3 → 7.3 Cloud migration and Big Data Real Time flow development
- Greenfield implementation of the Talend platform in Senegal (STER)
- GA Paie – PHOENIX Project: creation & centralization of multi-subsidiary HR/Payroll flows (CEGID HRU)
- Technical & functional analysis, costing, SFD/HLD writing, architecture design
- Coordination of IT departments, subsidiaries, software vendors, and technical service providers (France + International)
- Creation of Smart-Data interfaces & KPI visualization (Power BI)
- RUN Steering: daily supervision, flow optimization, incident & regression management
- Internal technical supervision, workshops & build/run support
Key Achievements:- Industrialization of 400+ HR/Payroll flows (PHOENIX – CEGID HRU) and multi-subsidiary harmonization
- Talend 6.3 → 7.3 Cloud migration & Big Data Real Time flow development
- Greenfield implementation of the STER Talend platform (Senegal)
- RUN & Data Quality Optimization: –25% incidents, better performance & stability
- ADPInterface Project Manager & BI Solution AnalystSOFTWARE PUBLISHINGSeptember 2019 - September 2020 (1 year)Nanterre, FranceContext:Involvement in two complementary areas within ADP: DataCloud Reporting project in an international context (France, UK, USA, Australia) and MAIF Interfaces & HR/Payroll integrations project (Talend OS).Participation in the Decidium (Z2Xi) → DataCloud migration, harmonization of model queries, interface creation, production of contractual deliverables, and steering of flows in collaboration with technical & business teams.Key Roles & Responsibilities:
- Migration of Decidium (Z2Xi) queries → DataCloud Reporting (multi-country context)
- Functional & technical analysis of SAP BO / DataCloud model queries
- Selection, adaptation, and testing of common queries (FR / UK / USA / Australia)
- Design & delivery of analytical dashboards (Splunk / Tableau)
- MAIF Interfaces Project: writing Interface Contracts, Integration Test Reports & maps
- Management and steering of interface developments (Talend OS)
- Testing, validation of processes, anomaly management & quality monitoring
- Coordination of workshops, migration deliverables, and stakeholder presentations
- Internal technical supervision, workshops & build/run support
Key Achievements:- International Decidium → DataCloud migration and harmonization of 60+ model queries
- Multi-country standardization: –40% functional discrepancies (FR/UK/USA/Australia)
- Splunk & Tableau analytical dashboards, improved monitoring & Data quality
- MAIF Interfaces: interface contracts, test reports, maps, Talend OS steering & deployment
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Education
- Engineering Degree, Data Analysis and ProcessingSchool of Information Sciences2015Diplôme d'ingénieur, Analyse et Traitement des Données
- Mathematics and PhysicsPreparatory Classes for Grandes Ecoles, Morocco2012Mathématiques et Physiques