Data Scientist SQL Python Freelance

About Free-Work and Insitoo Freelances

Based in Lille, Lyon, Nantes, Grenoble, and Brussels, Insitoo Freelances, a subsidiary of the Insitoo group, specializes in the placement and sourcing of IT and Business Freelancers. Since 2007, Insitoo Freelances has established itself as a reference in freelancing through its IT expertise and values of transparency and proximity.

Currently, to meet our clients' needs, we are looking for a Data Scientist SQL Python Freelance in Lyon, France.

Context of the Mission

A new system is being studied to ensure the aforementioned missions from the first half of 2026. The division aims to strengthen the project's BUILD framework. This request specifically seeks a senior Data Scientist for the implementation of RDD processes and tools.

Key Responsibilities of the Data Scientist SQL Python Freelance

• Data Collection and Preparation: Identify relevant data sources (databases, files, APIs, etc.). Clean and transform data for usability (managing duplicates, missing values, inconsistent formats).
• Data Analysis: Explore data to identify trends, anomalies, or correlations. Utilize tools like SQL, Python, or software such as Excel, Power BI, or Tableau. Address specific business questions (e.g., performance analysis, customer segmentation, process optimization).
• Visualization and Reporting: Create clear dashboards and reports to present results to stakeholders. Use tools like Power BI, Tableau, or Python.
• Collaboration and Recommendations: Work with business teams to understand their needs and translate data into actionable insights. Propose solutions or improvements based on analyses (e.g., cost optimization, customer experience enhancement).
• Automation and Optimization: Automate repetitive processes (Python scripts, Excel macros). Participate in the continuous improvement of analysis tools and methods.

The scope of the service includes general and detailed specification activities, assembly, integration testing (qualification and acceptance), project management, and architecture, within the requested framework. The entire mission must adhere to the group's quality approach and ensure compliance with security requirements, particularly GDPR.

Candidate Profile and Qualities

The ideal Data Scientist SQL Python Freelance will exhibit:

• Patience and thoroughness
• Autonomy and proactivity
• Versatility: adaptability and flexibility to adjust activities based on project needs

The Data Scientist's overall mission is to ensure data modification in the database, ensuring traceability of actions performed, under the authority of the project manager, with a view to future transfer to new applications. This role ensures the proper use of deployed systems and programs and proposes innovative solutions when technical or functional problems arise.

Detailed Mission Tasks

• Analyze and improve data quality to support RDD
• Monitor RDD tool settings
• Manage documentation, modification forms, and anomaly reports
• Draft business requirements and specifications
• Validate detailed technical specifications
• Monitor implementation phases with Project Owners
• Create test plans and perform acceptance testing

Expected Outcomes and Deliverables

• Pre-studies and initialization studies
• Drafting and validation of specifications
• Weekly workload plan
• Deployment organization and planning
• Change management support
• Meeting minutes

Technologies and Tools

• SQL: Expert
• RDD: Expert
• Python: Intermediate
• Power BI: Intermediate
• Excel: Intermediate
• Java: Junior

Key skills/competency

• Data Analysis
• SQL
• Python
• RDD (Rapid Data Development)
• Data Visualization
• Power BI
• Data Cleaning
• Project Management
• Business Intelligence
• GDPR Compliance