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Software Engineer Scientific Engine (Python)

France, Paris · Job Posted April 24, 2026
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Job Description

Join Descartes and contribute to our mission: Building Resilience in a World at Risk. Descartes is a corporate insurance group for worldwide companies and institutions. Descartes was born from a conviction that the growing complexity of corporate and climate risks demands a new approach to insurance. At the forefront of AI and Data analysis, Descartes utilises cutting-edge technology combined with a new generation of data sources, to model, assess and manage risks. Since 2019, Descartes has secured a leading position in parametric (re)insurance combining scientific & technological expertise with a new approach. Parametric insurance, also known as index-based insurance, indemnifies clients within days based on pre-defined payout structures when a specific triggering event occurs, the payout process is both fast and transparent. The company has been financed with over $141M by investors including Highland Europe, BlackFin, Serena, Cathay, Eurazeo and Battery Ventures. Our highly diverse and specialized team of 250+ people includes the largest modelling team in the industry featuring tech and modeling innovators, scientists in physics and climatology, as well as insurance veterans and underwriters. With a global footprint and strong US presence, Descartes serves a diverse portfolio of clients in more than 60 countries, with 20+ offices spread across Europe, Asia-Pacific, Latin and North America.

Job Responsibility

  • Testing and refactoring code already used in existing project
  • Introducing object oriented patterns in functional code
  • Harmonizing data structures to streamline computation pipelines
  • Time profiling and optimizing python code
  • Implementing and testing scientific models
  • Develop, optimize and update software for: Calculation of risk models
  • Data collection, preparation and visualization
  • Export of outputs adapted to users
  • Testing and validation of existing solutions
  • Monitoring of contracts and associated data
  • Support, test and correct the tools of: Continuous integration and continuous development (CI/CD)
  • Data storage
  • Version management of scrips, codes, languages and computer systems
  • Modularization and containerization of IT solutions
  • Connection to external and internal API’s
  • To participate in: The assessment and definition of user needs
  • Modeling the risks of underlying contracts
  • The choice of technical solutions
  • Discussions with IT partners
  • Improving the skills of technical staff
  • Managing the access and rights of users of internal tools

Requirements

  • Solid knowledge in one of the following languages python, C/C++ or java
  • Good knowledge in python
  • Solid scientific background: - Master in computer science, mathematics, physics, climate science
  • - Contact with scientific domain (e.g. robotic, physics engine in video game, data science)
  • Production with Docker
  • Experience in TDD
  • Good knowledge in English and fluency in French
  • Familiar with production development workflow (code reviews, fast forward git policy)
  • Contribute to a rigorous data engineering culture
  • Ability to understand break epic track in achievable issues
  • Excellent communication skills, in both formal and informal settings, and in English and French
  • Mentoring junior engineers

Nice to have

  • Experience working with public API with python
  • Experience optimizing and profiling python code
  • Experience in a microservices architecture
  • Experience in HPC
  • Contribution to an open source project

What we offer

  • Opportunity to work and learn with teams from the most prestigious schools and research labs in the world, allowing you to progress towards technical excellence
  • Commitment from Descartes to its staff of continued learning and development (think annual seminars, training etc.)
  • Work in a collaborative & professional environment
  • Be part of a dynamic international team, passionate about diversity
  • Join a company with a true purpose – help us help our clients be more resilient towards climate risks
  • A competitive salary, bonus and benefits
  • You can benefit from a punctual home office days

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