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Estuaire is a climate tech company helping aviation reduce its climate impact through data.
We build advanced analytics and decision tools to help airlines, airports, regulators and aerospace players better understand and reduce emissions across operations.
Our expertise covers both CO2 and non-CO2 effects, including contrails, and combines aviation knowledge, climate science and data modelling.
Based in Paris, Estuaire is a fast-growing team working on high-impact projects with leading players across the aviation ecosystem.
Job Description
About Estuaire
Estuaire is an aviation climate-tech startup helping airlines, airports and regulators reduce their climate impact through advanced emissions analytics and decision tools.
We believe in a more responsible way of flying. New-generation aircraft, contrail mitigation, sustainable aviation fuel and electric aviation will all play a role. Our mission is to help aerospace stakeholders navigate these options using data and scientific modelling.
Our founders bring experience from Airbus, MIT, Preligens and Groupe ADP, combining deep aerospace expertise with climate innovation.
Joining Estuaire means working in an early-stage startup where much remains to be built, with exposure to a strong network across aviation, climate tech and research.
Your Role
You will join Estuaire’s technical team and work closely with our collaborators in charge of technology and climate modelling.
Your work will sit at the intersection of data science, aviation engineering and climate modelling.
Product & Technology
- Prototype and develop new data-driven features for our climate analytics platform
- Improve data ingestion, cleaning and processing pipelines
- Optimize computations and infrastructure to support scaling
- Analyze how customers use our products and help refine the product roadmap
- Develop aviation climate models based on scientific research
- Work on non-CO₂ aviation effects, including contrails
- Combine AI, numerical weather prediction (NWP) and aircraft performance modelling
- Contribute to Estuaire’s expertise with academic and industrial partners
We are looking for a curious and motivated candidate passionate about aviation and climate impact.
Must-have
- Background in data science, engineering, aerospace or applied mathematics
- Strong Python programming skills
- Solid understanding of data analysis and modelling
- Curiosity, autonomy and ability to work in a fast-moving startup environment
- Strong interest in sustainability and climate innovation
- Fluent English (our working language)
- Knowledge of aviation systems or aircraft performance
- Experience with meteorological, geospatial or climate data
- Experience with machine learning or numerical modelling
- French is a plus but not required
Recruitment Process
1️⃣ Interview with our Tech Co-founder (30–45 min)
Discussion About Background, Motivation And Technical Experience.
2️⃣ Interview with our second Co-founder (30–45 min)
Conversation about interests and alignment + a short live case.
3️⃣ Technical interview with the team (1h)
Technical case to prepare and present around data science and aerospace topics.
Additional Information
- Contract Type: Internship (Between 6 and 6 months)
- Start Date: 01 September 2026
- Location: Paris
- Occasional remote authorized
Key Skills
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