About Harold Harvey Lewis B.
French
Native or bilingual
English
Conversational
Experience
- SpuerkeessSenior Data Platform Engineer | Cloudera CDP Administration & OptimizationBANKING AND INSURANCEJune 2026 - Today (1 month)Luxembourg, LuxembourgAdministration and operation of a Cloudera CDP cluster in a banking production environment, with responsibility for level 2 and 3 support for the entire Big Data stack.Scope of intervention:• Daily administration of the Cloudera cluster (CDH/CDP): service management, performance monitoring, incident management• L2/L3 Support: advanced diagnostics, complex incident resolution, escalation and coordination with Cloudera teams• Performance optimization: tuning YARN, HDFS, Hive, Impala, Spark — reducing processing times and improving resilience• Operations automation: implementation of automation scripts and pipelines (Ansible, Shell, Python) to reduce manual interventions• Continuous cluster improvement: version upgrades, security hardening, integration of new components• Collaboration with Data Engineering and Architecture teams to ensure platform availability and performance
- Banque de FranceData Product ArchitectPUBLIC SECTORMarch 2026 - June 2026 (3 months)ContextIntervention within the Banque de France as part of the Data IT transformation, with the migrationof historical BI & analytics uses to a modern data foundation based on Cloudera CDP 7.1.9.Main responsibilities• Leading the analysis of business needs for a strategic department (one of the largest inthe institution) as part of the transformation of its BI and analytics uses.1• Translation of functional needs into technical and architectural solutions aligned with thecapabilities of the CDP data foundation.• Cross-functional collaboration with: foundation/data platform teams, data engineers, enterprise architects• Design and proposal of robust data architecture solutions, taking into account theregulatory, performance, and security constraints specific to the banking sector.• Writing detailed architecture documents (HLD/LLD) and defending technical choices inarchitecture committees.• Contribution to the alignment between historical BI uses and new data paradigms (lakehouse,governance, analytics performance)Key achievements• Studies and recommendations on the adoption of Iceberg tables to modernize analytical uses and improve data management (ACID, time travel, performance).• Work on SAP BI impersonation on Cloudera to ensure fine-grained management of access and data security.• Implementation of reflections and solutions around the functional monitoring of data flows and analytical uses.• Contribution to the structuring of the target data platform to support BI workloads with high volume and criticality.Skills used• Cloudera CDP 7.1.9 (HDFS, Hive, Impala, Spark, Ranger, Atlas, Knox)• Data Architecture• Iceberg• BI Integration (SAP BI / Analytics)• Security & Access Management (impersonation, fine-grained access control)
- DASSAULT SystèmesProject Manager and BigData Ops ArchitectNovember 2022 - December 2025 (3 years and 1 month)• Translation of functional needs into technical and architectural solutions aligned with the capabilities of the CDP data foundation.• Cross-functional collaboration with: foundation/data platform teams, data engineers, enterprise architects• Design and proposal of robust data architecture solutions, taking into account the regulatory, performance, and security constraints specific to the banking sector.• Writing detailed architecture documents (HLD/LLD) and defending technical choices in architecture committees.• Contribution to the alignment between historical BI uses and new data paradigms (lakehouse, governance, analytics performance)Key achievements• Studies and recommendations on the adoption of Iceberg tables to modernize analytical uses and improve data management (ACID, time travel, performance).• Work on SAP BI impersonation on Cloudera to ensure fine-grained management of access and data security.• Implementation of reflections and solutions around the functional monitoring of data flows and analytical uses.• Contribution to the structuring of the target data platform to support BI workloads with high volume and criticality.Skills used• Cloudera CDP 7.1.9 (HDFS, Hive, Impala, Spark, Ranger, Atlas, Knox)• Data Architecture• Iceberg• BI Integration (SAP BI / Analytics)• Security & Access Management (impersonation, fine-grained access control)
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Education
- Electrical EngineeringESIGELEC2008
Certifications
- AWS Certified Solutions Architect – AssociateAWS2022