KARIM OUBAHA

– Leading Cloudera platform strategy and implementation across multiple entities, ensuring data sovereignty, scalability, and operational excellence. – Designed and deployed hybrid Cloudera architectures (on-premise and private cloud) ensuring performance, resilience, and compliance. – Implemented multi-tenancy and workload isolation, reinforcing security, elasticity, and resource sharing. – Defined end-to-end DataLake architecture aligned with business priorities (compliance, scalability, real-time analytics). – Spearheaded data governance strategy, covering quality management, metadata, and regulatory compliance (e.g., GDPR). – Built scalable data ingestion pipelines using Airflow, Spark, and NiFi to unify and standardize data flows. – Established a centralized data catalog improving transparency and cross-team collaboration. – Managed and coached multidisciplinary Agile teams, facilitating Scrum ceremonies and best practices adoption. – Conducted tool evaluations, benchmarks, and POCs, guiding strategic technology decisions. – Communicated data roadmaps and progress to project sponsors and business stakeholders. – Delivered executive-level presentations and data roadmaps to directors and senior stakeholders. – Supervised cross-functional Agile teams, ensuring adherence to timelines, code quality, and delivery excellence. – Supported integration of new use cases by defining scalable ingestion and processing patterns. – Contributed to operational monitoring and performance tuning of data pipelines and services.

– Delivered strategic data initiatives across multiple EDF divisions (HR, SEI, DPINN) by designing, developing, and maintaining enterprise Datalakes. – Defined Big Data cluster architectures and infrastructure provisioning per business unit. – Led data ingestion pipeline development and integration of new data sources. – Created a business-technical data dictionary to bridge functional and technical domains. – Designed high-load data APIs enabling analytics and operational reporting. – Oversaw a team of 5 developers under Scrum methodology, mentoring and onboarding new members. – Managed project budgets and vendor costs, optimizing delivery within financial constraints. – Reported KPIs and project roadmaps to senior management. – Coordinated infrastructure operations and incident management with outsourcing partners. – Supervised and mentored a team of five developers, ensuring technical growth and delivery efficiency. – Conducted code reviews, performance optimizations, and technical validations of critical components. – Managed project budgets and vendor costs, balancing delivery priorities and financial efficiency. – Coordinated production support and infrastructure provisioning in collaboration with external partners. – Presented project KPIs and progress reports to senior management and business stakeholders. – Led evaluation and integration of emerging technologies, improving performance and maintainability.

– Contributed to the SG Datalake program – a distributed platform for collecting, storing, and analyzing structured and unstructured data from multiple business lines. – Analyzed data source integration patterns and designed ingestion frameworks. – Deployed and configured Hadoop clusters and NiFi pipelines.

– Contributed to CIM, a real-time distributed platform aggregating data from retail points of sale to build predictive customer journeys. – Analyse et amélioration des processus d'intégration de données. – Designed ETL architectures and led data integration optimizations. – Conducted Big Data solution studies and proofs of concept (POCs). – Participated in architecture definition and roadmap planning. – Authored user stories and coordinated with business stakeholders in Agile mode. – Deployed and industrialized Storm, Cassandra, and Hadoop clusters.

– Revamped the client application for Renault by developing new purchasing and document management features. – Led integration and ensured quality assurance of client-side components. – Designed and developed Spring/Hibernate-based services. – Conducted unit testing and code reviews. – Migrated legacy Ul components to Bootstrap/jQuery.