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Alexandre BaillyAB

Alexandre Bailly

Data Analyst BI | Power BI • Snowflake • Dataiku

€230/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexandre

I am a BI Data Analyst specializing in Power BI, Snowflake, and Dataiku, with strong expertise in automation and business reporting for marketing, finance, and operations teams (Sanofi, Publicis Media).

I assist marketing, finance, and operations teams in implementing reliable, automated, and decision-oriented data pipelines, from data collection to Power BI dashboards used in production.

My role is not just to produce analyses, but to build robust data systems that eliminate manual Excel files, secure figures, and accelerate decision-making.

What I do concretely:

🔹 Implementation of reporting platforms
Connecting sources (Snowflake, SQL, APIs, business tools)
Data preparation and transformation (Dataiku, Python)
BI modeling (fact tables, dimensions, KPIs, data quality)
Performant and maintainable Power BI dashboards
🔹 Automation & orchestration
Automation of data flows with Dataiku, Python, and n8n
Integration of SaaS tools (CRM, Ads, Finance, ERP)
Scheduling, monitoring, and alerting
Elimination of manual tasks and Excel exports
🔹 Business & performance analysis
Marketing & acquisition (ROI, funnel, cohorts)
Finance & steering (Revenue, margins, forecasts)
Supply chain & operations (volumes, quality, deadlines)


Stack

Power BI • Snowflake • Dataiku • SQL • Python (Pandas) • n8n • Power Automate • Excel • Google Analytics


🎯 Types of missions sought

Reporting modernization (Excel → Power BI)
Implementation of automated data pipelines
Structuring business KPIs
Data platforms for marketing, finance, and supply chain teams
Data automation and reliability
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Sanofi
    Performance Data Analyst
    September 2024 - January 2026 (1 year and 4 months)
    Gentilly, France
    Contribution to international supply chain data and Power BI reporting platforms (Snowflake, Dataiku, industrial KPIs)• Automation and data cleaning (ETL/ELT processes, source reliability) to accelerate analysis.

    • Development of reports, analyses, and visualizations for precise performance tracking.
    • Implementation and improvement of Business Intelligence solutions to support strategic decision-making.
    • Definition and monitoring of a structured KPI framework, aligned with performance objectives.
    Data Analysis Automation Microsoft Power BI Python
  • Publicis Media
    Media Trader
    September 2023 - September 2024 (1 year)
    Paris, France
    Marketing & Media Analytics – Key Accounts (SNCF, Pfizer, BPCE)

    1. Campaign Setup
    Definition of marketing and business objectives
    Configuration of tracking systems and media platforms

    2. Activation & Steering
    Launch and monitoring of multi-channel campaigns
    Performance analysis by lever, audience, and message

    3. Continuous Optimization
    Identification of performance levers (targeting, budget, channels)
    Data-driven recommendations to improve ROI

    4. Reporting & Decision-Making
    Power BI dashboard creation
    Monitoring of KPIs (conversions, CPA, ROI, attribution) for marketing teams
    Microsoft Power BI Power BI Desktop BI Strategy Marketing
  • SOLACE
    Digital Project Manager
    September 2022 - August 2023 (11 months)
    Web Analytics & Reporting

    1. Data Collection & Tracking
    Analysis of web performance via Google Analytics (GA3 / GA4)
    Migration GA3 → GA4 and implementation of custom events

    2. Monitoring & Steering
    Creation of KPI dashboards (traffic, conversion, engagement)
    Monitoring of digital journey performance

    3. Analysis & Optimization
    Behavioral analysis and optimization of user journeys
    Data-driven recommendations to improve conversion
    Project Management & Product Launch

    1. Digital Project Management
    Team coordination via JIRA
    Tracking of roadmaps and deliverables

    2. Launch & Go-to-Market
    Coordination of new product and service launches
    Alignment of marketing, data, and operational teams

    3. Activation & Events
    Organization of trade shows and brand events
    Post-launch performance monitoring
    Marketing Analytics Data Visualization

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Education

  • Bachelor's degree, Digital Marketing & Communication
    EFREI Paris
    2022
    Bachelor's degree, Marketing digital & Communication
  • Web Engineering, Digital Marketing, Computer Science
    ESGI
    2022
    ingénierie du Web, marketing digital, Informatique

Skill set (7)

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