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Rostand Tchami DjongoueRT

Rostand Tchami Djongoue

Business Analyst | BI Consultant | Power BI | SAP BI

€600/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Rostand

Lead Business Analyst / AMOA Data & BI with over 17 years of experience in the design, management, and transformation of decision support systems within large corporate environments (Insurance, Services, Luxury).
I work on both functional scoping and the implementation of data solutions, ensuring the link between business departments and IT teams.
My dual expertise allows me to:
· Understand business challenges and translate them into concrete data solutions
· Structure and validate data for effective performance management
· Support organizations in their BI transformation projects
Areas of intervention:
· Gathering and scoping business needs
· Writing functional specifications
· Managing BI projects and IT coordination
· Data governance and quality
· Designing dashboards and performance indicators
Key achievements:
· 30% reduction in reporting production times
· +40% improvement in data quality
· Automation of over 60% of data processing
· Deployment of large-scale BI solutions (+1000 users)
Tools & environments:
Power BI, SAP Business Objects, SQL, Datastage, BODS, Oracle, SQL Server, Azure
Objective: Secure data projects, improve data quality, and transform decision support systems into business performance levers.
  • French

    Native or bilingual

  • English

    Conversational

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

Experience

  • SODEXO
    Business Analyst
    RESTAURANTS AND FOOD SERVICE
    May 2022 - Today (4 years and 1 month)
    Guyancourt, France
    **Context**: Transformation of the HR decision support system in a complex international environment.

    **Actions**:

    · Gathering and scoping HR business needs
    · Writing functional specifications
    · Managing the migration from SAP Business Objects to Power BI
    · Structuring HR repositories and indicators
    · Coordinating IT teams and monitoring development
    · Organizing and managing functional acceptance testing
    · Implementing data quality controls

    **Results**:

    · 30% reduction in reporting production times
    · Improvement in data quality (+40%)
    · Automation of over 60% of processing
    · Improvement in HR decision-making
    Business analysis Microsoft Power BI Data visualization Data governance Reporting and dashboards
  • GENERALI
    Senior Decision Support Consultant
    BANKING AND INSURANCE
    June 2017 - April 2022 (4 years and 10 months)
    Saint-Denis, France
    **Context**: Large-scale deployment and evolution of the HR decision support system.

    **Actions**:

    · Gathering business needs and facilitating workshops
    · Writing functional specifications
    · Designing datamarts and analytical models
    · Implementing BI solutions and decision dashboards
    · Managing data quality and governance
    · Coordinating teams and managing acceptance testing

    **Results**:

    · BI solution used by over 1000 users
    · 35% reduction in data-related anomalies
    · 25% gain in access time to indicators
    · Improvement in strategic HR management
    SAP Business Objects Datastage Business intelligence AMOA Project Management
  • INSTITUT NATIONAL DE L'AUDIOVISUEL
    Senior Decision Support Consultant
    PUBLIC SECTOR
    January 2017 - May 2017 (4 months)
    Bry-sur-Marne, France
    **Context**: Project to migrate decision support flows to a new BI architecture.

    **Actions**:

    · Audit of decision support flows
    · Scoping the migration strategy
    · Managing tests and validation

    **Results**:

    · Secure migration without interruption
    · Performance improvement (+20%)
    Business Object Data Services Business intelligence Business Objects Data integrator MySQL

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Education

  • Microsoft Certified - Power BI Data Analyst Associate
    2024
    Microsoft Certified - Power BI Data Analyst Associate
  • Python for Beginners
    2022
    Python for Beginners

Certifications

Skill set

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