Product Owner

  • 91370 Verrières-le-Buisson, France (PARIS)
  • International environment, Very good English + French is a plus
  • Space and Aviation manufacturing
  • Min 3 years of experience minimum
  • 70 000€ / year

We are hiring for a company which is a pioneering space technology company specializing in advanced propulsion systems for small satellites. They are global experts in satellite propulsion, pushing the boundaries of streamlined in-orbit mobility for the rapidly expanding satellite constellation industry. Their clients across the US, Europe, and Asia trust us to design and deliver high-performance, precision-engineered propulsion systems that push technological boundaries while meeting demanding timelines and budgets. They made history in 2019 and 2020 with the world’s first in-orbit demonstrations of a unique state-of-the-art fueled electric propulsion systems. Today, they are experiencing rapid growth, with over 300 systems ordered to date.

As a Product Owner, you will play the important role of ensuring the technical success of the product. You will be responsible for following the product life cycle of the JPT150, the first iodine-filled Hall thruster to be used in space. You will interface with different teams, based on the maturity of the product, bringing knowledge and expertise across all technical teams. You will actively participate in the development of JPT150, driving the improvements and updates of the design, as well as accompanying it through in-orbit demonstration mission, lifetime test and industrialization process at a later stage.

As part of the Product Management team, you will interface with all aspects of the creation of the product, from early conception to production. This role requires a dynamic and multitasking individual who will drive people forward with strong expertise and a positive attitude.

Key responsibilities:

  • Ensure the product’s success from all technical aspects.
  • Defining and communicating the product vision and strategy.
  • Managing the product lifecycle and driving product enhancements.
  • Follow the product throughout its development cycle, interfacing with the different teams.
  • Collaborating with engineering teams to define product architecture and design.
  • Assemble and lead the debugging task forces when needed.
  • Report directly to the Head of Product Management Team.

Skills and qualifications:

  • PhD in Plasma Physics or a similar technical discipline is required, a MSc can be considered if paired with relevant work experience. Technological excellence is the most important criterion.
  • 2+ years of work experience in a space sector industry (not including studies).
  • Strong soft skills and great communication for interfacing with different teams and key clients.
  • Experience with space system engineering and design.
  • A driving personality and positive attitude.
  • Excellent communication skills in written and spoken English (French is a plus)

The successful candidate should be a self-starter with a passion for space technologies and the commercial space industry. Experience in design and development of new products is a plus. We value a proactive and inquisitive mindset, and the ability to work collaboratively with cross-functional teams.

For more than ten years, I’ve been driven by one idea — the future of Space and Defense depends on the people behind it. My career began in technical recruitment, where I had the privilege to hire engineers designing cutting-edge systems for aerospace and advanced manufacturing.

Co-founding Demexios was a natural next step: a way to transform my industry knowledge and relationships into a dedicated structure that helps clients recruit faster, smarter, and with strategic alignment.
Over time, I built long-term partnerships with companies leading technological sovereignty — from NewSpace startups developing electric propulsion to defense integrators modernizing tactical and surveillance systems. These collaborations allowed me to form a powerful network of decision-makers, project leaders, and experts who now trust Demexios to deliver when precision truly matters.
Today, my role is not just to connect candidates and companies — it’s to ensure that every hire strengthens our clients projects.

I’ve built my career in sales and recruitment across several industries space, tech, healthcare, and defense. I’ve always been drawn to innovation and the talented people who turn ideas into reality. Over the years, I’ve learned how much a motivated and skilled team can define a company’s success and how the right people will shape the future of the New Space and defense industries.

My international background has allowed me to work with both startups and global organizations, helping them identify individuals who truly fit their culture and business goals. This combination of experience in technology and talent acquisition naturally led to the creation of Demexios.

At Demexios, our mission is simple: to connect experts with the companies that need their skills particularly in the defense and space sectors. I firmly believe that no ambitious project can succeed without a skilled and cohesive team driving it forward.

My commitment is to be a trusted partner for our clients, supporting them step by step in building strong, high-performing teams that deliver tangible results whether their ambitions lie on Earth or beyond.