Meet our team
At Stern Tech, every member of the team plays an essential role in building technology that is human-centered, ethical, and forward-looking.
We bring together people who are passionate about innovation and committed to creating useful, accessible, and responsible solutions.
Our team
Christophe
Stern
CEO & CPO (Product)
Christophe’s career path
Building on extensive experience gained within the Information Systems Departments of major global enterprises—complemented by consulting and interim management assignments focused on complex IT project management, transformation programs, and strategic reorganizations—Christophe chose to further expand his expertise by pursuing a PhD in Sociology in 2020, following the completion of a DEA in Culture and Social Behaviors.
In 2022, he founded Stern Tech, a unique platform combining artificial intelligence and cognitive sciences to design solutions tailored to multiple markets—solutions that are now recognized by the prestigious Gartner.
Valérie
Perruchot-Garcia
VP – Communications
Valérie’s career path
A graduate of Sciences Po and the Centre de Formation des Journalistes (CFJ), Valérie began her career in journalism before moving into corporate communications, holding positions at the CEA, Roche, Saint-Gobain, and AXA.
In 2010, she took part in the creation and launch of Financi’Elles, a women’s network in the finance sector, and led its communications until the end of 2011. From 2008 to 2010, she also served as President of the French Association of Internal Communication.
In 2012, within Johnson & Johnson’s pharmaceutical division—the world’s leading healthcare group—she oversaw communications, public affairs, patient relations, and CSR initiatives.
In 2025, she became Senior Advisor for Communication at Nextep, a consultancy operating in the healthcare sector, while also volunteering as Head of Communications for Donner des Elles à la Santé, an association of women physicians based in a hospital setting.
A recognized speaker for several schools and professional communication networks, she is also the author of “Boosting Internal Communication”, whose latest edition was published in 2025 by Dunod.
She is a partner at Stern Tech.
Samah
Djouadi
VP – Sales & Marketing
Samah’s career path
As VP of Sales & Marketing at SternTech, I lead the growth strategy and the implementation of our go-to-market approach.
For nearly 20 years, I have supported the transformation of sales organizations in SaaS and legaltech environments, using a data-driven and impact-oriented approach. My career has led me to structure, develop, and scale teams and offerings, notably at LexisNexis, Leaders League, and Lextenso.
I have developed strong expertise in value positioning, helping companies clarify their value proposition, align product, market, and messaging, and demonstrate concrete ROI to demanding clients.
More recently, I have advised startups and international groups on transformation, growth, and strategic operations.
Today, I am channeling this experience toward a single ambition: to build a new generation of AI capable of understanding and anticipating human behavior to inform decision-making.
Convinced that technology must remain at the service of people, I take an approach that is predictive, ethical, and results-oriented.
Sophie
Calligaris
CCO – HR
Sophie’s career path
A specialist in corporate communications with a strong focus on human resources, Sophie has built her career around managerial challenges related to talent management, employer branding, HR digital strategies, and the application of AI in recruitment.
Whether working in an agency environment as a Client Services Director or on the client side, she enjoys understanding business challenges in depth in order to better align HR strategy and deliver practical, effective solutions. Highly committed to her projects, she strives to make every initiative she leads exceptional, while never losing sight of the creative dimension essential to making any strategy clear and impactful.
Sébastien
Pennella
CCO – Marketing & Automotive
Sébastien’s career path
Brenda-Andreea
Rauta
AI Engineer
Andreea’s career path
On a daily basis, Andreea participates in the design and development of web applications and intelligent platforms, as part of projects combining data, artificial intelligence and user experience.
She is involved in both the technical aspects and the structuring of projects, in collaboration with multidisciplinary teams.
Her role is to transform concrete needs into reliable, high-performance and scalable solutions, while ensuring the quality of the final product.
Diane
Dufay
Marketing & Communications
Diane’s career path
With a Master’s degree in digital communication from ISCOM (Paris), Diane Dufay discovered
her profession at the Garches Town Hall, where she was in charge of managing the municipality’s social media accounts
and creating various communication materials.
Also trained in project management at the Affective agency, she joined Stern Tech for
her work-study programme in September 2024, before joining the team as
Communications and Marketing Manager. This gave her the opportunity to help consolidate
Stern Tech’s presence on social media and at major international events
such as Vivatech, and to create a wide range of communication materials. Her creativity,
responsiveness and agility are a major asset for Stern Tech, but this does not prevent her
from developing her skills every day in the strategic issues related to the company’s development
Baptiste
Mangin
Sales Engineer
Baptiste’s career path
Baptiste Mangin is a work-study student in Business Engineering at Stern Tech. His academic exchange in Dublin (2024–2025) enabled him to strengthen his English skills and develop a strong international perspective.
Building on experiences at Celio, Hollister, DAM’S, and ServiceNow, he has developed solid skills in customer relations, business development, prospecting, and project management. Ambitious and curious, he is eager to grow in dynamic environments and actively contribute to the company’s projects.
Maria
Lalkovicova
Neuroscience Researcher
Maria’s career path
Maria, our neuroscience and physiology researcher
At Stern Tech, she integrates neuroscience concepts and practical approaches into our technology modules, applying neurophysiological and cognitive methods to our multimodal software.
Her role is to assess changes in human behaviour and improve our understanding of the brain through artificial intelligence and cognitive science.
Thanks to her research, our technology is becoming even more tailored to users’ needs.
Jianling
Zou
Robotics and AI Researcher
Jianling’s career path
Jianling ZOU, a young doctor of computer science and robotics. Her interdisciplinary thesis focused on interventions for children with dysgraphia, in combination with the use of a social robot. She is particularly interested in the integration of artificial intelligence and cognitive science. As an AI and robotics researcher at SternTech, Jianling works on various detection engines and also on Franco-Chinese collaboration projects.
