Freelancer profile translated to English.
Back to original languageAbout Tanguy
Power BI Consultant | Data Analyst
I transform your raw data into performance levers.
Expert in Power BI for over 3 years, I help companies create interactive dashboards, automate reporting, and perform advanced data analysis.
My goal: to provide you with clear, reliable, and truly actionable indicators.
🎯 What I bring you concretely
âś” Creation and optimization of Power BI dashboards
→ Effective visualizations, fluid navigation, actionable KPIs.
âś” Automation of reporting
→ Elimination of manual tasks, automated workflows, reliable refreshes.
âś” Data modeling & advanced DAX
→ Robust models, optimized performance, complex calculations.
âś” Data Storytelling & insight structuring
→ Business-oriented dashboards, visual and decision-making narrative.
âś” Pedagogy & Delivery
→ Clear and simplified explanation of actions to make you autonomous with your tools.
🔹 Why choose me?
âś… +3 years of experience in Data Analytics & Business Intelligence
âś… Certified Microsoft Power BI expertise (DAX, Power Query, Modeling)
âś… Ability to simplify technical concepts
âś… Business value & action-oriented approach
📩 Ready to support you on your Power BI projects — let's connect now!
French
Native or bilingual
English
Fluent
Can work on-site
Rennes (up to 50km), Paris (up to 10km)
Experience
- Naval GroupData AnalystDEFENSE AND MILITARYJanuary 2023 - February 2026 (3 years and 1 month)Cesson-Sévigné, FranceSituation:
- Within the workstation engineering team, I joined a strategic IT modernization and transformation program (AD Migration, Windows 11 deployment). The project suffered from fragmented management and a critical lack of visibility, with heterogeneous reporting hindering decision-making at the management level.
Task:- My mission was to structure a comprehensive analytical system to support governance. I had to transform complex operational data into measurable performance levers, in order to secure project milestones and provide consolidated risk visibility to management.
Action:- In-depth analysis of existing data flows to identify information silos and friction points in indicator reporting.
- Definition and construction of a framework of strategic indicators aligned with risk management, budget compliance, and resource optimization.
- Implementation of data normalization and cleaning processes (Data Cleaning) to ensure the integrity and accuracy of information presented in instances.
- Creation of decision-making dashboards focused on "Risks and Performance," enabling proactive identification of deviations and critical areas of the system.
- Provision of in-depth analyses to support budget decisions and prioritization decisions in steering committees (COPIL).
Result:- Notable acceleration of decision-making in COMOP and COPIL thanks to the elimination of data-related uncertainty.
- Improved overall visibility on project progress, enabling real-time risk management.
- Direct contribution to the organization's analytical maturity through the implementation of standardized and documented reporting processes.
- Compliance with the program's strategic objectives through precise monitoring of compliance and deployment indicators.
- Naval GroupSystems and Database AdministratorDEFENSE AND MILITARYJune 2021 - December 2022 (1 year and 6 months)Cesson-Sévigné, FranceSituation:
- As part of the workstation engineering team in a high-security environment, I managed the WSUS/SCCM infrastructure internationally. The major challenge was to transform an aging update infrastructure into a data-driven system capable of ensuring strict compliance and real-time visibility across all group subsidiaries.
Task:- My role was to act as the technical referent for the WSUS unit and administer the associated databases to ensure the availability and optimization of SQL Server instances (SUSDB). Modernize compliance reporting by directly utilizing source data. Automate administration to minimize errors and deployment delays.
Action:- SQL Server Administration: Implementation of a critical maintenance routine (re-indexing, cleaning of obsolete data, monitoring of .mdf/.ldf files) to stabilize administration consoles.
- Data Engineering & Reporting: Design of complex SQL queries and data modeling in Power BI (DirectQuery/Power Query) to create decision-making dashboards.
- Automation & Industrialization: Development of PowerShell scripts connected to databases to automate remediation tasks and export logs to auditing tools.
Result:- Performance: Significant reduction in administration console response times through SQL index optimization.
- Visibility: Improved accuracy of compliance reporting (transition from static reports to dynamic monitoring via Power BI).
- Availability: Optimized deployment success rate through better SUSDB integrity and automated cleaning processes.
- Continuity: Formalization of operations through backup, restore, and preventive maintenance procedures (DRP).
- Orange Business ServicesSystems and Database AdministratorDIGITAL AND ITOctober 2019 - June 2021 (1 year and 8 months)Rennes, FranceSituation:
- In a multi-site high-security environment, the management of updates and security was fragmented. The lack of centralized compliance data made park management difficult and increased the risk of vulnerabilities on servers and workstations.
Task:- My mission was to modernize the infrastructure to ensure optimal security and total visibility. My main objectives were to centralize patch management by migrating from WSUS to SCCM, create a reliable and automated reporting system on the park's health status, and ensure the maintenance and integrity of security databases.
Action:- Data Migration: I managed the transfer of inventory and compliance data from WSUS to SCCM, ensuring the consistency of deployment schemas.
- SQL Optimization & Security: I managed the McAfee ePO console, intervening directly on the SQL structure to extract event logs and audit the park's antivirus compliance.
- Dashboard Development: I designed key performance indicators (KPIs) and monitoring dashboards, transforming raw database data into decision-support tools for the IT team.
- Automation: I developed PowerShell scripts to automate the lifecycle of Active Directory objects and the synchronization of hardware inventories (Asset Management).
Result:- Efficiency: Successful centralization of patch management, significantly reducing inventory discrepancies between systems.
- Visibility: Implementation of "Data-Driven" management allowing real-time identification of non-compliance instead of manual weekly reporting.
- Quality: Formalization of complete technical documentation, ensuring smooth knowledge transfer and better service continuity (ITIL compliant).
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Education
- Master 1 - Data Essentials & Data AnalysisFullstack Jedha Bootcamp - Paris, France2025
- License - Systems and Network AdministratorPĂ´le Universitaire LĂ©onard de Vinci - La DĂ©fense, France2016
Certifications
- Microsoft Certified: Data Analyst AssociateMicrosoft
- Google Certified: Google Analytics CertificationGoogle