Florent Martineau, Developer in Paris, France
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Florent Martineau

Verified Expert  in Engineering

Data Scientist and Software Developer

Location
Paris, France
Toptal Member Since
February 14, 2022

Florent is a data professional with five years of experience in marketplaces and data on tech companies like Amazon, eBay, and two French unicorns, Manomano and Ankorstore. He excels in providing strategic impact by analyzing problems through data and presenting the findings to executives. Florent also has extensive analytics engineering experience with Airflow, ETL, SQL, data modeling, and dashboarding.

Portfolio

PepsiCo
Data Engineering, Apache Airflow, Snowflake, Python, Data Build Tool (dbt)...
Data Now
TypeScript, NestJS, Next.js, Google Cloud Platform (GCP), React, ClickHouse...
Ankorstore
SQL, Python, Google BigQuery, Dashboards, ETL, Big Data Architecture...

Experience

Availability

Full-time

Preferred Environment

SQL, Python, Apache Airflow, TypeScript

The most amazing...

...insight I've had was finding an untapped, highly profitable user segment that led to dozens of millions of euros in additional sales when tapped.

Work Experience

Data Engineer

2022 - 2022
PepsiCo
  • Built a full data pipeline, from data ingestion (Python scripts) to scheduling (Airflow), Transformation (dbt), and visualization (ThoughtSpot).
  • Enabled the project to move quickly with strong communication and project management. I ensured we could parallelize tasks as much as possible to reach deadlines.
  • Built integrations with several data sources' APIs.
Technologies: Data Engineering, Apache Airflow, Snowflake, Python, Data Build Tool (dbt), Amazon Web Services (AWS), Datadog, Data Analytics, SQL, Data Modeling, Performance Tuning, Data, Data Warehouse Design

CTO

2022 - 2022
Data Now
  • Built a production-grade no-code platform with four customers, generating €1,000 MRR in four months.
  • Interviewed 150+ people to understand their problems and find the right idea.
  • Built a business plan, pitched, and successfully raised €100,000 pre-seed investments.
  • Led a team of full-stack developers, defining roadmap and architecture.
Technologies: TypeScript, NestJS, Next.js, Google Cloud Platform (GCP), React, ClickHouse, Airbyte, PostgreSQL, ETL, Roadmaps, Data Architecture, Architecture, Data Analytics, SQL, Apache Airflow, Data, Data Warehouse Design

Senior Data Analyst

2021 - 2022
Ankorstore
  • Built Ankorstore's main reportings while scaling from 40 to 500 employees in nine months.
  • Onboarded and trained ten data analysts in four months.
  • Participated in designing the data models together with the BI engineering team.
Technologies: SQL, Python, Google BigQuery, Dashboards, ETL, Big Data Architecture, Data Architecture, Roadmaps, Architecture, Data Analytics, Data Modeling, Performance Tuning, Data, Data Warehouse Design

Senior Data Analyst

2017 - 2021
ManoMano
  • Identified and quantified the importance of browsing for DIY projects—like "renovate my bathroom" vs. "look for each product independently"—after which we created a new feature team.
  • Led a three-person team to build and maintain the main reporting of the company.
  • Trained 300+ employees in SQL and Tableau while managing two teachers.
Technologies: SQL, Python, Machine Learning, Amazon Web Services (AWS), Apache Airflow, Redshift, Snowflake, Web Scraping, Analytics, Google Analytics, Data Analytics, Visual Basic for Applications (VBA), Data Modeling, Performance Tuning, Data, Data Warehouse Design

Business Analyst

2017 - 2017
Amazon.com
  • Made a 3-month deep dive analysis on how Amazon should handle last-mile electric package deliveries and presented it to FR top management.
  • Automated 20% of the work of business administrators.
  • Created reports that followed Amazon's last-mile operations.
Technologies: Redshift, Business Analysis, Data Analytics, SQL, Visual Basic for Applications (VBA), Data Modeling, Performance Tuning, Data

Product Analyst

2016 - 2017
eBay
  • Partnered closely with product managers and feature teams to deliver insights. Analyzed A/B test results and ran ad hoc analysis.
  • Built an automated A/B testing tool by taking raw Google Analytics data from BigQuery, computing statistical properties of each A/B test, and displaying the results in Tableau.
  • Set up a unified Google Analytics tagging plan across all eBay Classifieds Group (20 subsidiaries).
Technologies: Data Visualization, Data Analysis, BigQuery, Google BigQuery, Tableau, Product Analytics, Google Analytics, Data Analytics, SQL, Visual Basic for Applications (VBA), Data Modeling, Performance Tuning, Data, Data Warehouse Design

CoursetomiZed

I built a business plan for an adaptive learning app. The app adapts to the students' learning, namely the number of examples and the learning pace. This project won two business plan competitions, competing against more than 500 projects participating.

Languages

SQL, Snowflake, HTML, Python, TypeScript, JavaScript, Visual Basic for Applications (VBA), CSS, XML

Libraries/APIs

React, Node.js, Matplotlib

Paradigms

ETL, Business Intelligence (BI), Database Design, Management, Data Science, Object-relational Mapping (ORM), DevOps

Storage

Database Architecture, Databases, PostgreSQL, Data Pipelines, MySQL, Redshift, ClickHouse, Datadog, Web Forms

Other

Dashboards, Data Analysis, Data Visualization, Data Engineering, Architecture, Data Analytics, Reporting, Data Transformation, Data Warehousing, Full-stack Development, Minimum Viable Product (MVP), Exploratory Data Analysis, Front-end Development, Data Modeling, Data, Data Warehouse Design, Business, Web Scraping, Analytics, Google BigQuery, Programming, Entrepreneurship, Data Architecture, Big Data Architecture, Roadmaps, Data Build Tool (dbt), Front-end, APIs, Back-end, Mobile Analytics, Full-stack, Web Development, Data Aggregation, Amplitude, Segment, Performance Tuning, Strategy, Statistics, Innovation, Machine Learning, Business Planning, Airbyte, Computer Vision, Finance, Web 3.0, CRM APIs, Product Analytics, Business Analysis, Team Leadership

Frameworks

Flask, Tailwind CSS, Material UI, NestJS, Next.js

Tools

Apache Airflow, Google Analytics, Tableau, Microsoft Power BI, Microsoft Excel, BigQuery, Seaborn, Power Query, Figma, Looker

Platforms

Firebase, AWS Lambda, Jupyter Notebook, Google Cloud Platform (GCP), Amazon Web Services (AWS)

2013 - 2017

Master's Degree in Management

EDHEC Business School - France

2016 - 2016

Postgraduate Program in Business Administration

Indian Institute of Management – Ahmedabad - Ahmedabad, India

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