Program committee

Trained as a general engineer with over 10 years’ experience in data science, I’m part of the Data Science team at HelloWork, a group that creates HR solutions to bring candidates and recruiters or students and trainers closer together. There, I explore a variety of topics around NLP (CV parsing, text classification, named entity search, etc.), but also recommendation and search engines.

Emmanuel is Java Champion, Senior Distinguished Engineer and Chief Architect Application Services and Middleware at Red Hat. His work is Open Source. He is known for his contributions to and leadership of the Quarkus and Hibernate projects, as well as his contributions to Java standards.

He speaks regularly at conferences and JUGs including JavaOne, Red Hat Summit and Devoxx. He hosts a number of podcasts, including Les Cast Codeurs.

You can follow him on BlueSky at @emmanuelbernard.com or on twitter at @emmanuelbernard.

#kafka #quarkus #debezium #infinispan #hibernate-orm #hibernate-search #hibernate-validator #hibernate-ogm #ceylon #JPA #bean-validation #lescastcodeurs

Passionate and innovative professional, specialized in data management and architecture. Significant experience in big data and AI, with major contributions to Groupe BPCE and Natixis.
Professional Experience:
– Groupe BPCE: Manager Data IA Platform & Architecture, leading initiatives to modernize data infrastructures and developing open-source solutions.
– Natixis: Data management and cloud technology expert, enhancing operational processes and supporting strategic objectives.
Engagements and Contributions:
– Active member of TOSIT: Participating in open-source initiatives and sharing knowledge at conferences.
– Regular speaker on big data and AI topics for IMA, etc.

Sylvain Corlay is the founder and chairman of QuantStack, a company specialising in open-source software for scientific computing.

As an open-source developer, Sylvain is very active in the free scientific computing ecosystem, particularly in the Jupyter project, as well as in the conda-forge and xtensor projects. In 2018, he and the other members of the Jupyter leadership were honoured with the ACM Software System Award.

Beyond QuantStack, Sylvain is very involved in the community. He was a board member of the NumFOCUS foundation from 2018 to 2024, organised the JupyterCon 2023 conference in Paris, and has been coordinating the PyData community in Paris since 2017, as organiser of the PyData meetup group and conference in 2024 and 2025.

A rich career in RTE fostering cross-functionality: from an apprentice modernizing a critical system, Boris Dolley led IT projects, trained users, managed a Procurement team, co-founded a software development department, and now serve on the R&D leadership team as head of Open Source Program Office (OSPO) and leading strategies for sustainable ICT and digital sovereignty.

Creator of XWiki and CEO of XWiki SAS, Ludovic I’m the gentle organizer of the XWiki SAS company for now 20 years.

XWiki SAS, a European company based in France and Romania, only building free & open-source software leads the development of the XWiki Software used by thousands of organizations and helps companies and organizations all over the world organize, share, and collaborate on content. XWiki also leads the development of CryptPad (https://cryptpad.org), the E2EE Real-time Collaborative Suite.

I’ve been a speaker at various events including Paris Open Source Experience, FOSDEM, OW2 Conference, JDLL, Capitole du Libre, speaking about Collaboration Software, Financing FLOSS software and Privacy Solutions.

I’m also member of the OpenFoodFacts board.

Peter Ganten is founder and CEO of Univention GmbH, which enables organizations and individuals to control, innovate and customize their IT systems to  meet their individual needs with the help of open source software. He is also the chairman of the board of the Open Source Business Alliance – the German industry association for open-source businesses – and co-founder and board member of APELL, the European umbrella organization of open source industry associations. His expertise is frequently sought when it comes to advising politicians and administrators, companies and civil society on achieving digital sovereignty through open source solutions.

Pierre-Yves Gibello has been involved in IT for 30 years, 25 of them in open-source, in constant collaboration with scientific research:
R&D engineer at Bull (now Atos), then at Inria, contributor to several FOSS projects, teacher at the Polytech engineering school, expert with OSEO, company founder and elected member of the OW2 Board for 10 years, then bearer of a research partnership between UGA (Université Grenoble Alpes) and Linagora, he joined OW2 in 2019 as a research engineer, before taking over its management in 2022.

Geoffroy Grelot joined French quantum computing startup Quandela in 2025, as strategic program director and information security advisor.
A weapons engineer, after several assignments in nuclear engineering, he went on to work on digital architecture and transformation for the French General Directorate of Armaments, then the Ministry of Foreign Affairs.
For almost 10 years, he has been using open-source software as a lever for collective performance and sovereignty.

CTO and co-founder of Cockpit io, Katia is a recognized expert in the Cloud & DevOps ecosystem. With over 10 years’ experience in the cloud, she has supported dozens of companies in their digital transformation, from designing to securing complex cloud architectures and modern software factories. Passionate about sharing knowledge, she is a regular speaker on cutting-edge technical topics and strategically advises CIOs and CTOs of public and private companies on optimizing their infrastructures and practices.

Tobie Langel is a world-leading expert on open source and standardization. He advises some of the biggest names in tech (Google, Microsoft, Mozilla, Intel, Cisco), promising startups (Airtable, GitLab, Postman), industry organizations (OpenJS Foundation, OASIS Open, W3C, Eclipse Foundation) and nonprofits (Ushahidi, Omidyar Network), pro bono or through his consultancy, UnlockOpen.
Tobie’s unique mix of deep technical expertise, open source and standardization street creds, thorough understanding of IP concerns, industry-wide network, and broad, business-focused strategic perspective makes him an ideal partner when growing thriving open ecosystems that balance private and public interests in pursuit of the common good.
Tobie is the technical lead for the Eclipse Foundation’s Open Regulatory Compliance (ORC) Working Group which he represents at the European Commission’s CRA Expert Group.”

Thierry Leblond is President of PARSEC, a software solution for cyber-protection of sensitive data in the cloud, CSPN-certified by the French Information Systems Security Agency (ANSSI) and dedicated to Zero Trust sharing (end-to-end encryption) of sensitive data in public, hybrid or private clouds. He is also an engineer general in the second section of the French army.

Dev fullstack cultivated in Ops, jaime the buzzwords, and the technos that go with them. Expert in nothing but curious about everything, my main motivation is to get players in the same field to work together by creating technical bricks or human mortar. After several years developing security solutions and mobile services, for the past 3 years I’ve been technically guiding the Orange Group’s Open Source Program Office.

In 2003, Veronika Mazour-Mestrallet co-founded eXo Platform, a French publisher specialising in open-source intranet and digital workplace solutions. In June 2022, she was appointed CEO of the company, with the ambition of offering an open-source, sovereign alternative to Microsoft 365.

Veronika Mazour-Mestrallet began her career as a private equity analyst at Goldman Sachs. She then joined the general inspection department of BNP Paribas, before moving to the Paris office of Boston Consulting Group (BCG). In 2009, she decided to invest fully in eXo Platform by taking on the role of Chief Financial Officer, a position she also held within the Codenvy spin-off from 2012 to 2015. Thereafter, she managed eXo Platform’s operations until 2022, when she became CEO.

Open source, synonymous with transparency, mutual aid and collaboration, is at the heart of eXo Platform’s founding principles and has always guided Veronika’s career path. With eXo Platform, she aims to build a more sustainable, responsible, free and high-performance digital future.

Since 2016, Elisa NECTOUX has held the position of Sales and Marketing Manager at Belledonne Communications (publisher of the Linphone and Flexisip open source software). Enjoying a technical environment and sensitive to the principles of open source software, her mission is to develop new revenue models and markets to support the company’s growth. With a Master’s degree in Management, she has acquired expertise over the years in the complex issues faced by users, developers and integrators of unified communications solutions.

Emily Omier is works with open source companies to clarify the roadmap for project and product, how the project fits into their business strategy and how to build a growth flywheel that optimizes the relationship between project and product. She’s the co-founder of Open Source Founders Summit, a conference for founders of open source companies, and host of The Business of Open Source.

Sebastian Raible is the Director EU Government affairs for APELL – The European Open Source Software Business Association. APELL represents European business associations and the Open Source industry. Among the businesses represented by APELL’s members are primarily SMEs, some large companies, as well as public administrations, research institutions and individuals.

Yannick Seiller has been working for over ten years to develop and distribute open source solutions in France. Since 2012, he has headed FactorFX, a hybrid company that both publishes and integrates open source solutions, including OCS Inventory, the asset management tool widely used in the public sector. In 2024, he became Director of Open Source Experts, affirming his commitment to digital sovereignty based on transparency, expertise and collaborative innovation.