Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Roman is a cybersecurity expert, engineer, and leader with 20 years of hands-on experience securing complex systems and products at scale. Currently Principal Architect at Red Hat, he leads open-source security strategy, upstream collaboration, and c... Show more
Markus and his teams have been working on Java IDE and database tools, frameworks, as well as on various open-source projects for 20+ years. Markus is the CEO and founder of Cyrock.AI, Inc., which is the company behind the Eclipse open-source project... Show more
Hi, I’m Muhammad Samiullah, a Solution Engineer and a Microsoft Most Valuable Professional (MVP) in Azure and Developer Technologies. I design and deliver secure, scalable cloud and AI solutions, with a focus on automation, cost optimization, and ope... Show more
Aydin Mir Mohammadi, partner and architect at bluehands, has been creating software for more than twenty years. He specializes in the development of distributed complex business applications based on Microsoft technologies. His focus is on cloud migr... Show more
Christian Wenz is a consultant, software architect and entrepreneur specializing in web technologies and security. A prolific writer, he has authored or co-authored over 100 books for various publishers. Christian’s work spans both open-source and pr... Show more
Microsoft Business Applications MVP in Power Apps. Power Platform enthusiast and solution architect with great passion for building and developing functional & aestethic Power Apps ✨ Show more
With a passion for technology that is matched only by his commitment to community engagement, Ryan Schouten stands out as a Microsoft Most Valuable Professional (MVP). Hailing from the vibrant tech scene of California, Ryan has carved a niche for him... Show more
Cristian is a “Project Management Professional turned into a Data Guy” working as a link between two worlds: Business and IT. Having worked for the last 20+ years with data in different roles he was fascinated when he discovered Power Query and Powe... Show more
I am Nilanjan Chatterjee , a seasoned Data Engineering leader and architect at AMD, with extensive experience in rolling out 0-1 turn-key products and features across Fintech, Semiconductor and Telecom domains. With over 12 years of experience across... Show more
Cat is a Staff Product Manager at Syntasso, where she works at the intersection of developer experience, infrastructure strategy, and product design. With a background in enterprise platform tooling and developer productivity, she focuses on helping ... Show more
Sergey Chubarov is a Security and Cloud Expert with over 15 years of extensive experience in Microsoft technologies. As an instructor, Sergey is dedicated to guiding companies through the complexities of securely adopting cloud solutions. His consult... Show more
Mathias is a data enthusiast with a great passion for the synergy between data analytics and cloud data platforms. As a Senior Director at Inspari he works with building up clients' data capabilities, implementing data platform technologies and a... Show more
Pulkit Midha is a mobile developer and technical evangelist passionate about offline-first architecture, real-time sync, and intelligent client-side experiences. He has worked on cross-platform apps, AR/VR products, and AI-integrated systems. A GSoC ... Show more
Rik helps organisations use Cloud better as CEO and co-founder of Zure UK. Whether that is a new adoption where governance and management are key, or an application modernisation project where technology choice and team knowledge are important factor... Show more
Alan Smith is a Cloud & AI Trainer, Mentor & Coach at Active Solution in Stockholm, Sweden. He has a strong hands-on philosophy and focusses on embracing the power and flexibility of cloud computing to deliver engaging and exciting demos and training... Show more
5X Microsoft MVP AI | Among first five AI MVP from INDIA |☁️ Cloud Evangelist at Capgemini| 🎙️Global AI Speaker | ✍️ Published Author | 👨💻 MS Docs Contributor | Founder of Dear Azure Show more
With over 8 years of experience working with industry giants like McAfee, Juniper, and Fraunhofer, Sankalp has consistently been at the forefront of security innovation. He has expertise in building software systems that do intrusion detection and wa... Show more
Aleksandar Nikolić is a Microsoft Azure MVP and a co-founder of PowerShellMagazine.com, the ultimate online source for PowerShell enthusiasts. As a Microsoft Azure Advisor, he provides valuable feedback and insights to the Azure engineering team. Wit... Show more
Alex Merced is Head of DevRel for Dremio and co-author of "Apache Iceberg: The definitive guide" from O'reilly and has worked as a developer and instructor for companies like GenEd Systems, Crossfield Digital, CampusGuard and General Assembly. Alex ... Show more
Founder - CodeSizzler India | UAE AI Engineer 9x Microsoft MVP on Azure 10x Microsoft Certified Trainer Azure Cloud Advocate Show more
Stephanie is the co-founder and grand high witch at data-witches.com. She is a Microsoft Data Platform MVP who specializes in turning complex data into clear insights using Fabric and Power BI. Known for her practical, approachable style, she shares ... Show more
Jason Bell is a digital transformation leader with expertise in business architecture, emerging technologies, and guiding organizations through complex digital initiatives. With a background in both strategic vision and hands-on execution, he brings ... Show more
Cloud Infrastructure Specialist, Focused on designing and securing scalable cloud solutions across Azure, AWS, and GCP. Expertise in network/cloud security (VMware NSX, SIEM) and virtualization (VMware, Citrix) to drive resilient and efficient IT en... Show more
Dan Bergh Johnsson works at the intersection of software architecture, security, and large-scale system design. He has decades of experience designing and reviewing complex systems where security, stability, and delivery speed are in constant tensio... Show more
Alyssa is an Senior Developer Advocate for Progress and a Google Developer Expert for Angular. She has spoken at over 50 conferences locally and internationally. She is the host of the Angular Air podcast and emcees ng-conf as well as Monorepo World.... Show more
With two IPOs and nine acquisitions, Brian has contributed to the development and scale of several of the most influential cybersecurity companies globally. He brings more than 30 years of experience across the security sector as an entrepreneur, boa... Show more
Catalin Gheorghiu is a solution architect from Timisoara Romania. The current interests are in the area of (I)IoT, industrial mobile and cloud solutions. In addition to addressing the software development and architecture, is a trainer and consultant... Show more
Christian Glessner
Founder @Hololux | 17x Microsoft MVP 🏅 | Chief AI Babysitter @atwork | Guiding Global Brands Into the Agentic Age 🚀
Christian Glessner is the founder of Hololux, an innovation agency at the intersection of artificial intelligence and immersive technology. As a 17-year Microsoft Most Valuable Professional (MVP) and early contributor to Microsoft’s new Agent Fram... Show more
Me llamo David Amorin Garcia, tengo 32 años y me dedico a la comunicación desde los 15. Como amante de las tecnologías y de transmitir conocimiento, me gradué en Teatro a la par que me formaba en aspectos relacionados con el SEO y los datos. Aprovech... Show more
Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers.
Most Active Speakers 2025
Every year, we put together a list of the most active speakers. This list features the top 3% of speakers who have participated in events using Sessionize during the 2025.
The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2025. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 39,000 unique accepted speakers this year, the 3% is 1163. Not all of them have their speaker profiles set as public, and we respect that, so the list doesn't show all of them.
The calculation is based on the number of accepted events, that's the main criteria, but to get more refined results we also look at things like multiple sessions per event, sharing a session with a co-speaker and how big the event is. Number of submissions and declined sessions don't affect the list.
Please note that the count of events and sessions in this list does not represent the number of events and sessions from the year 2025. Instead, it shows the number of events and sessions featured on the speaker's public speaker profile; these numbers have nothing to do with the award itself.