Jul 2023 - Now3 years 4 months
Founding Engineer, first employee ↗
Guided Energy
- Developed a prototype for Sixt to schedule electric vehicle charging before rental, from serverless infrastructure on AWS to the web interface used by branch teams.
- Resolved database saturation issues caused by incoming data from approximately 10,000 vehicles and hundreds of chargers by batching writes using an SQS queue.
- Developed an AI agent to track shipments, follow up with carriers and retrieve proofs of delivery, then improved it with the team. Approximately 50% of proofs of delivery collected automatically, with variations across clients.
- Automated client data imports, enabling the Customer Success team to carry out integrations without developer intervention. Once the expected examples have been prepared, the agent generates and tests SQL transformations in approximately 10 minutes.
- Created tools to evolve AI agent instructions: prompt version tracking, change review, testing before deployment and the ability to revert to a previous version.
Oct 2022 - Jun 20239 months
Data Engineer ↗
Freelance
- PepsiCo — Created consolidated tracking of AWS and Snowflake spending, from data collection to the dashboard, to enable each team to monitor its budget. Identified potential cost reductions by comparing resources used with actual needs.
- OpenClassrooms — Improved the reliability of learner journey metrics, which sometimes showed discrepancies of more than 10% between dashboards. Built a shared data source with dbt and validated it with business teams to support analyses up to Executive Committee level.
- ManoMano — Coached marketing teams in SQL for 4 months using their own analyses: resolving difficulties encountered and providing step-by-step explanations to develop their autonomy.
Mar 2022 - Sep 20227 months
CTO and co-founder ↗
Datanow
- Participated in 150 user interviews, 80% of which were with people from my network, to understand their needs and steer the offering toward a turnkey data stack.
- Participated in sales calls and the offering’s launch strategy (go-to-market). The company acquired its first 4 clients, generating more than €1,000 in monthly recurring revenue.
- Built and deployed data solutions for these clients, from connecting sources to dashboards. Automated infrastructure on Google Cloud and adapted processing to business needs.
- Developed a visual interface prototype for transforming data without writing SQL, alongside a frontend developer. Query generation was functional, but the tool was still internal at the time of departure.
Apr 2021 - Feb 202211 months
Senior Data Analyst ↗
Ankorstore
- Established the initial foundations for data analysis at Ankorstore, using dbt and dashboards to track the company’s key metrics.
- Reconciled tens of thousands of Stripe transactions with website orders to prepare accounting reports. Resolved discrepancies with finance and created tests to make calculations more reliable.
- Conducted analyses for investor reporting and fundraising preparation: purchasing trends after the first order, business volume and the costs of commercial incentives.
Aug 2017 - Mar 20213 years 8 months
Senior Data Analyst ↗
ManoMano
- Identification of an estimated potential €150 million in additional annual business volume: analysis presented to the executive committee and used to guide the commercial roadmap.
- Design and delivery of the “Data Ninja” SQL learning programme, followed by support for 2 trainers, as part of an initiative that trained approximately 400 employees.
- Development of the reference reporting used to steer the company: metrics defined with business teams and used weekly by the executive committee; migration of processing workflows to Airflow.
- Creation of a business alerting system with metrics calculated every minute, enabling the identification of malfunctioning user journeys.
- Contribution to recruitment for the Data Analyst team, approximately 6 people: design of SQL tests and conduct of technical interviews. Supervision of 2 interns and support for junior staff.
Feb 2017 - Aug 20177 months
Business Analyst, internship ↗
Amazon
- Feasibility study of delivery using electric vehicles to address traffic restrictions: analysis of constraints, cost simulations and recommendations used by management.
- Automation of vehicle requirement allocation and emails to carriers using Excel/VBA, with estimated savings of several hours per day for one analyst.
- Telephone prospecting of hundreds of transport companies and assessment of their ability to meet Amazon’s needs, before passing qualified contacts to the manager responsible for negotiations.
