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Simon LeboucherSL

Simon Leboucher

Churn & Retention Analyst · SaaS Data Consultant

€500/day
Nantes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Simon

Are you struggling to explain the churn that impacts your growth?
I help SaaS and scaleups understand why their customers leave and stop it by cross-referencing marketing, product, and billing data.

With 2 years of experience as a freelancer, notably at Crisp IM, I have developed a structured 3-step approach:

1. Diagnosis: I identify your at-risk profiles and disengagement signals. I also analyze the impact of your marketing efforts on retention (demos, webinars).

2. Modeling: I build predictive churn models adapted to your data stack, so your team can react before it's too late.

3. Action: I translate insights into concrete decisions for your product and marketing teams, with continuous dashboard monitoring.

My goal is not to deliver a report. It's to build a data-driven strategy that measurably reduces your churn rate.

📍 Missions in French or English · Remote or in Nantes, France · For B2B & B2C SaaS companies

I am available, contact me!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Nantes (up to 10km)

Experience

  • Crisp IM
    Churn & Retention Analyst · SaaS Data Consultant
    SOFTWARE PUBLISHING
    October 2025 - Today (8 months)
    Nantes, France
    Business data analysis (Python, PostHog, Fincome) for customer retention insights and opportunities. Reporting to CMO and CEO.

    My mission included:
    • Measuring the impact of webinars and demos on customer retention.
    • Automating Fincome data ingestion for SaaS KPIs monitoring (MRR, ARR, growth, churn, cohorts)
    • Analyzing interactions with Crisp's customer support team to get insights about churned customers pains.
    • Coupling billing data with behavioral data (in-house billing system, Posthog) to get insights on churned customers behavioral patterns.
    Customer Success Strategy & Guidance Customer Loyalty/ Retention Python Churn Reduction Customer Success Strategy
  • Metrilab GmbH
    Data Engineer
    DIGITAL AND IT
    May 2023 - October 2025 (2 years and 5 months)
    Berlin, Germany
    Data pipelines (Airflow, AWS S3, AWS Redshift) for classifieds marketplaces business intelligence.

    My mission included:
    • Structuring existing pipelines with Apache Airflow scheduler.
    • Implementing new data processing pipelines (100+ GB per day).
    • Improving pipelines robustness and observability: failure notifications, data quality checks.
    • Reducing data processing costs by 30% (~$4k/mo) over all Metrilab's processes: migration from a costly data wharehouse to a data lake architecture.
    Airflow Data Engineer Data Lake Web Scraping Big Data
  • Diabolo.io
    Software Engineer
    BANKING AND INSURANCE
    June 2022 - August 2025 (3 years and 2 months)
    Nantes, France
    I selected and integrated automated trading strategies on the Diabolo online trading platform.
    3-month internship followed by a freelancing mission during graduate school.
    Python Start-up

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Education

  • MEng in Computer Science & Data Engineering
    Polytech Nantes
    2024
    5-year program: 2-year integrated prep school (Maths, Physics, CS) followed by 3-year engineering specialisation in CS & Data

Skill set (17)

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