09/29/2025 updated

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Data Analyst | Data Modeler | Data Manager

Houdeng-Aimeries, Belgium
Belgium
Houdeng-Aimeries, Belgium
Belgium

Profile attachments

CV_Nicolas_Gielen_202504.pdf

About me

Leveraging extensive experience in Data and Analytics, I combine technical expertise, management skills, and creativity to help organizations maximize the value of their data.

BI Qlik SenseData visualization Data WarehouseSQLMicrosoft Power BIData AnalystData StrategyData ManagementBusiness IntelligenceData Modeling
Leveraging extensive experience in Data and Analytics, I combine technical expertise, management skills, and creativity to help organizations maximize the value of their data:
  • Shaping and leading data teams
  • Driving technology roadmaps
  • Managing data projects and programs
  • Designing data solutions (data visualization, BI, data warehousing)
  • Architecting data platforms
  • Delivering impactful proof-of-concepts and prototypes

Languages

EnglishFluentFrenchNative speakerDutchFluent

Project history

Data Analytics Team Lead

Fluxys

Energy, Water & Environment

1000-5000 team member

Chief Data Officer

National Employment Office (NEO)

Government and Public Services

1000-5000 team member

NEO is a public social security institution which manages the unemployment insurance system as well as certain employment measures. It is also in charge for the career interruption and time credit system.

My contribution:
  • Designed the data strategy aligning with NEO's business objectives.
  • Established and led the Data Office, covering Data Governance, Data Quality, Data Architecture and Data & Insights delivery.
  • Launched the Data Governance and Data Quality practices.
  • Supervised the inception of a new hybrid data platform (Azure cloud and on-prem OpenShift).
  • Drove the definition and implementation of the Power BI and Python governance frameworks.
  • Implemented a demand management process for Data & Insights delivery.

Data Analytics Consultant

Fluxys

Energy, Water & Environment

1000-5000 team member

Headquartered in Belgium, Fluxys is a fully independent energy infrastructure group with 1,300 employees active in gas transmission & storage and liquefied natural gas terminalling. As a purpose-led company Fluxys together with all its stakeholders contributes to a better society by shaping a bright energy future.

My contribution:
  • Managed the Analytics roadmap for Corporate Commercial.
  • Provided guidance to the Smart Data Factory (IT) department to improve efficiency in delivering Agile analytics projects.
  • Contributed to the definition of the Power BI governance framework.

Data Consultant

Moore Belgium

Auditing, Taxes & Law

1000-5000 team member

Moore Belgium is the largest independent accounting and consulting company in Belgium that helps entrepreneurs realize their dreams.

My contribution:
  • Evaluation of Microsoft Fabric for the to-be Azure data platform
  • Provided guidance to prepare a migration from Qlik Sense Enterprise for Windows (on-prem) to Qlik Sense SaaS Enterprise
  • Shaped the governance framework for Qlik Sense SaaS.
  • Crystallization of Power BI standards and guidelines
  • Design and implementation of ad-hoc solutions for e.g. data quality management and digital assets management.

Senior BI Consultant

Haulogy

Energy, Water & Environment

50-250 team member

As an IT company developing its own software, Haulogy has acquired a know-how at the cross roads of 3 areas of expertise: a proven track of records in software engineering, extensive knowledge of power systems & energy markets and competencies in machine learning and applied mathematics.

My contribution:
  • Assessment of the as-is BI ecosystem and solutions.
  • Refactoring of the ETL solution design.
  • Delivery of BI projects/solutions.
  • Advisory on BI solutions and technology roadmap.

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