Software Developer

**If you want to work for a company that has a truly positive impact on our planet, you've come to the right place**

**VAISALA** is a global leader in measurement instruments and intelligence helping industries, nations, people, and the planet to thrive. From predicting hurricanes to optimizing renewable energy production, our technology is used where it matters the most: from data centers, windfarms and laboratories to airports, the Arctic and even the surface of Mars. Vaisala was recognised by Time Magazine in 2025 as among the world’s best companies for Sustainable Growth.
Our team of over 2 300 experts and 59 nationalities around the world is committed to taking every measure for the planet. Driven by our shared purpose, curiosity, and pioneering spirit, we stay ahead and make a difference. At Vaisala, you don't have to fit in to belong.

**Why join us?**
- A human-sized company made up of committed teams striving to change the world by offering innovative solutions to measure weather and environmental conditions
- A stimulating working environment within a coworking space, with multiple advantages including hybrid working, free parking and free hot drinks. A cafeteria and pay to use gym are also available onsite
- A sustainable mobility package of up to 600€ per year (bicycle, scooter, carpool)
- Variable remuneration, a participation agreement, a PEE (Company Savings Plan), 11 days of RTT, a top-of-the-range Mutuelle Santé, 50% of which is covered by the company, the possibility of subscribing to a supplementary health insurance and meal vouchers via the SWILE card, 60% of which is covered by the company (value 11€ / day worked) complete the social benefits
- Benefits that promote parenthood: 5 days of paid sick child leave, childcare assistance for children under 6 years of age of 80€ per month and per child within the limit of the URSSAF ceiling, maintenance of fathers' salary at 100% during paternity leave, a birth voucher

**What is your role?**
By joining our Xweather team, you will work on projects where accuracy, precision, and reliability are crucial, making a tangible difference in the renewable energy landscape.
Reporting to the Head of R&D your main missions will be to:

- Develop and maintain software solutions to process and analyze large datasets related to solar irradiance
- Develop APIs and services for data retrieval, transformation, and visualization
- Work with geospatial data formats (NetCDF, HDF5, GeoTIFF) and integrate external APIs (NASA, PVGIS, NSRDB)
- Collaborate with cross-functional teams to ensure data accuracy and integrity
- Optimize data processing workflows for efficiency and scalability
- Document code, processes, and methodologies for future reference

**What are you going to bring?**
Minimum master’s degree Engineering School or University in Computer Science, Software Engineering, or a related field and minimum 3 years of experience a track record of building and maintaining scalable backend systems within an international and industrial environment.
- Technical knowledge and skills :_
- Proficiency in backend programming languages, such as Python, Node.js, Ruby, or Go
- Leveraging Pandas and other data manipulation tools for efficient computation
- Hands-on experience with API development using Frameworks like FastAPI or Flask
- Familiarity with microservices architecture and containerization technologies like Docker
- Interpersonal skills :_
- Problem-solving mindset, attention to detail, and adaptability in a cross-cultural, multi-time-zone environments
- Fluent in English, with clear communication skills for technical and non-technical audiences. French will be a plus
- Experience working in Agile or Scrum environments, with an understanding of iterative development and team collaboration
- Analytical mindset, capable of breaking down complex problems and designing efficient solutions

**Recruitment Process**
- Phone Interview (HR) : 10/20 min
- Face-to-face/Teams interview (Manager + team): 1h30
- Written test 3 hours and feedback
- Final interview with N+2: 30 min

Applications should be sent via the Vaisala careers page with a **resume in English**.

**VAISALA France** reaffirms its commitment to gender diversity and non-discrimination.
The company is convinced that professional equality between women and men is an essential factor of social progress and sustainable performance for the company.
As far as recruitment is concerned, and in accordance with the legislation in force, it is recalled that all internal and external job offers are written in a gender-neutral manner and that the actors in charge of recruitment missions (firms, agencies and companies) are trained and made aware of non-discrimination in hiring.

**Ready to take all the measures for the planet? Don't wait any longer and join us