Freelancer profile translated to English.
Back to original languageAbout Jacques
Senior Data Analyst | Expert SQL, dbt | Power BI, Metabase, Looker Studio 🇬🇧🇫🇷
🎯 For over 7 years, I have been helping companies, in France and internationally, to transform their data into actionable insights and relevant information.
✅ My mission: to facilitate your strategic decision-making through clear and intuitive dashboards.
🚀 Business Intelligence & Data Expertise:
→ Migration of reporting and dashboards: takeover, optimization, and modernization of data tools to improve their performance, reliability, and user adoption.
→ Creation of decision-making dashboards: implementation of personalized dashboards with optimized indicator tracking.
→ Gathering business needs: quick identification of challenges and clear formalization of key requirements.
→ International dimension: 5 years of international experience with fluent English to collaborate with international teams and projects.
📈 Projects recently completed:
→ Dashboard migration project, from Luzmo to Power BI: +€80K in license cost savings.
→ Dashboard migration project, from Power BI to Metabase: +20% data quality through correction of identified inconsistencies and redesigned dashboards.
-> BigQuery pipelines migration project (scheduled queries) to dbt: significant improvement in data reliability and cost reduction.
-> Reporting migration project, from Nifi to BigQuery (dbt): designed and maintained robustly, scalably, and sustainably.
📊 Business Intelligence & Data Expertise:
→ Dashboarding: Metabase, Power BI, Looker Studio
→ Programming languages: SQL, Python
→ Data storage : Postgres, Google BigQuery, AWS
📩 Have a data project?
Do not hesitate to contact me to discuss your project 💯
English
Native or bilingual
French
Native or bilingual
Spanish
Conversational
Can work on-site
Rennes (up to 50km), Paris (up to 50km), Toulouse (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km)
Experience
- LengowData Analytics Engineer (Freelance)E-COMMERCEMarch 2026 - June 2026 (3 months)Barcelone, SpainI managed the migration of custom reports to support, maintain and improve existing client products.â–¶ Migrate custom reports while ensuring data consistencyâ–¶ Validate and reconcile data between legacy and new reporting systemsâ–¶ Improve legacy dashboards by improving data layoutâ–¶ Investigate and resolve data and visualisation issuesâ–¶ Document data transformations, dependencies and reporting logic
- roadsurferData Analyst (Freelance)TRAVEL AND TOURISMJuly 2025 - December 2025 (5 months)Barcelone, SpainI’m in charge of migrating the company’s dashboards, working across multiple topics, teams, and datasets to ensure a smooth and efficient transition.▶ Migrate existing reports from Power BI to Metabase.▶ Create new dashboards based on emerged business and add new datapoints as required.▶ Develop and optimize complex SQL queries to support dashboard creation.▶ Collaborate with business stakeholders to understand reporting objectives and requirements.▶ Rebuild and enhance visualizations in Metabase to meet analytical and business needs.▶ Ensure data integrity and consistency between Power BI and Metabase outputs.▶ Identify and implement opportunities to improve dashboard usability and performance.
- Caravelo l Travel-TechBusiness Intelligence AnalystTRAVEL AND TOURISMJune 2023 - December 2024 (1 year and 6 months)SpainI played a key role in completely revamping all company's dashboards from scratch, introducing a new reliable and robust BI tool tracking SaaS Metrics. Additionally, I was actively involved in conducting analysis to enhance the understanding of the subscriber's journey.â–¶ Defining metrics to align with clients expectations. I am closely working with Customer Success Team to ensure dashboards accurately and align to client needs.â–¶ Designing and organising dashboards layouts to clearly and effectively present metrics.â–¶ Implementing advanced analytics in dashboards to empower independent decision-making.â–¶ Consistently providing analysis and reports to meet company goals and assist in troubleshooting outages and incidents.â–¶ Deploying and updating dashboards integration (Git, GitLab, etc.)-TOOLS: SQL, PowerBI, DAX, Looker Studio, Luzmo, Metabase, Git, GitLab, Visual Studio Code, Terminal, Amazon Web Services S3, Amazon Athena, DBeaver, Microsoft Excel, Google Workspace, Jira, Confluence, Slack, Figma
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Education
- Mathematics and Computer Science Applied to Human and Social Sciences (MIASHS)UFR des Sciences - University of Versailles Saint-Quentin-en-Yvelines2017MATHEMATICS AND COMPUTER SCIENCE
Certifications
- SQL Competency CertificateLearnSQL.com