Data Engineer / Data Scientist Engineering Paris

Kleep; Paris; Hybrid; EUR 13,000 - 18,000; Part time

Job summary

Kleep is seeking a data engineer / data scientist intern to help ship data products from raw data to live client-ready analytics. You will work closely with the CTO, the Head of Machine Learning and the team, using Claude Code to prototype and ship quickly.

This role covers the full data project lifecycle, from data collection and cleaning to dashboards and back-end integrations. Location is Paris (9th arrondissement); start ASAP; internship contract.

Qualifications

• Strong Python and SQL fundamentals.
• Experience cleaning and analyzing data.
• Desire to ship product-impacting work.
• Curiosity about AI-assisted coding and new dev workflows.
• Able to move fast in a startup with high stakes.

Responsibilities

• Data engineering: collect, clean and prepare data for reliability.
• Data analysis: turn data into metrics answering product and client questions.
• Deployment: expose work via backend capabilities powering analytics dashboards.
• Build and improve data pipelines, pre-processing, cleaning, aggregation.
• Prototype and ship fast with AI coding tools like Claude Code.

Skills

Python

SQL

Data analysis

AI-assisted coding

Tools

TypeScript

React

AWS

GCP

Job description

Own a data project through its whole lifecycle, from raw data to analyses that ship in the product and land in front of clients.

We are looking for a data engineer / data scientist intern to help us ship data products fast. The role covers the entire lifecycle of a data project, from raw data to a live product.

You will work closely with the CTO, the Head of Machine Learning and the whole team, and your work will be used directly by our clients. Tools like Claude Code (Max) let you prototype and ship quickly, moving across the stack as the project demands.

What you will do

• Data engineering: collect, clean and prepare data so it is reliable and ready to use
• Data analysis: turn that data into analyses and metrics that answer real product and client questions
• Deployment: expose your work through back-end capabilities powering our analytics dashboard, and simple front-end interfaces
• Build and improve data pipelines, pre-processing, cleaning, aggregation
• Prototype and ship fast with AI coding tools like Claude Code

Who you are

• Strong basics in Python and SQL
• Comfortable manipulating, cleaning and analyzing data
• You want your work to ship: product impact, not just notebooks
• Organized, curious, ambitious, and you want ownership
• Curious about new dev workflows, especially AI-assisted coding
• Comfortable moving fast in a startup environment with high stakes

The stack

• Front-end: TypeScript, React
• Infrastructure: AWS, GCP
• Start date: as soon as possible (flexible)
• Contract: Internship
• Location: Paris (9th arrondissement)

Why Kleep

Kleep builds the intelligence layer for fashion e-commerce: sizing, discovery and AI imagery that 300+ brands run in production, Givenchy, Lacoste and Victoria Beckham among them. Every product is proven in live A/B tests, not in decks.

We are a small, senior, international team with offices in Paris (9th arrondissement) and, since January 2026, New York. The company is led by its founders: Federico (CEO, previously in venture capital and private equity) and Théophile (CTO, an ENS and Mines Paris engineer who worked in trading and quantitative research at Morgan Stanley and BNP Paribas).

Ownership here is real: ideas are heard, feedback flows both ways, and impact is tangible from day one. We hold a high bar, celebrate together, weekly team drinks, monthly events, annual off-sites, and stay serious about the work, never about ourselves.