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Harold Harvey Lewis B. D'AlmeidaHH

Harold Harvey Lewis B. D'Almeida

Architecre Ops Data

€1,333/day
Luxembourg, LU
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Harold Harvey Lewis B.

You are leading a Data transformation within a complex enterprise architecture, in a regulated banking environment, and you are looking for an architect who can combine technical vision, methodological rigor, and concrete execution?

I design and structure Data architectures at the heart of enterprise architecture: flow integration, Cloudera CDP/CDH platforms, vector and graph databases, data governance — ensuring that each component fits coherently into the overall IT ecosystem.

What sets me apart: a dual expertise in technical architecture and project management, forged over 18 years in a demanding banking environment (Banque de France as a reference). I know how to frame a project, lead committees, secure milestones, as well as delve into the technical details of a Hadoop cluster or a RAG chain. This ability to navigate between strategy and operations avoids the classic blind spots between architects and project managers.

Deliverables I work on: enterprise architecture diagrams (TOGAF, DAMA DMBOK), data and AI platforms in production, project frameworks and roadmaps, data governance documents, critical infrastructure migrations.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Luxembourg (up to 50km)

Experience

  • Spuerkeess
    Senior Data Platform Engineer | Cloudera CDP Administration & Optimization
    BANKING AND INSURANCE
    June 2026 - Today (1 month)
    Luxembourg, Luxembourg
    Administration 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
    Cloudera Data Platform Hive Ansible
  • Banque de France
    Data Product Architect
    PUBLIC SECTOR
    March 2026 - June 2026 (3 months)
    Context
    Intervention within the Banque de France as part of the Data IT transformation, with the migration
    of 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 in
    the institution) as part of the transformation of its BI and analytics uses.
    1
    • 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)
  • DASSAULT Systèmes
    Project Manager and BigData Ops Architect
    November 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 Engineering
    ESIGELEC
    2008

Certifications

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