Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Matteo is a Solutions Engineer at GitHub, CNCF Ambassador and Cloud Native aficionado, a former startup CTO and DevRel. Open Source contributor, part of the Kubernetes Release Team since v1.31 and until v1.34, serving in Release Engineering since v1.... Show more
Tanya is an Author, LinkedIn Top Voice, and AVP at Barclays. A renowned Agile project management expert, cybersecurity specialist, and technology leader, Tanya has inspired thousands with her insights on STEM education, leadership, and innovation. As... Show more
Courtney Yatteau is a Developer Advocate on Esri's Developer Experience Team, where she helps developers build better web applications with modern JavaScript tools, libraries, and mapping technology. Before Esri, she taught computer science and mathe... Show more
Alexander is the Lead Data Transformation Architect at Advania in Sweden, where he spends his days helping clients of all shapes and sizes to take better care of - and make more sense of - their data. He has spent the last 29 years poking around wit... Show more
Daniel Afonso is a Senior Developer Advocate at PagerDuty, SolidJS DX team member, Instructor at Egghead.io, and Author of State Management with React Query. Daniel has a full-stack background, having worked with different languages and frameworks on... Show more
Øystein Hagen Blixhavn is passionate about getting stuff done, in basically all senses of the words. If it reduces wasteful effort and time, fantastic. If it improves the developer experience and increases their flow, amazing! This aspiration has ... Show more
Pradeep is as old as the internet but he didn’t have reliable access to the electricity or the internet until he entered IIT Roorkee where he studied electronics and programming. His interest in programming grew more after his work as a Computer Scie... Show more
Coach Agile et Coach Professionnel, Olivier accompagne des individus, des équipes et des organisations ayant l’envie d’aller vers plus d’adaptabilité, de résilience et de pérennité humaine dans ce monde en perpétuel mouvement. Dans ce sens, il les ai... Show more
Sasha is CTO at Brainform.ai with over 20 years of experience architecting scalable enterprise systems. With a strong engineering background, his expertise spans frontend, backend, cloud infrastructure, mobile development, and AI — from cloud-based g... Show more
I'm Mahendran Selvakumar, a Cloud Native technologist and Open Source advocate with deep experience in Kubernetes, AWS, and HashiCorp tools and Service Mesh. I'm a HashiCorp Ambassador, Linkerd Ambassador, AWS Community Builder. I organize the AWS We... Show more
Sr. Solution Architect at Microsoft. I started programming as a kid and never stopped. I have worked across everything from embedded systems to large‑scale data platforms. My work over the past decade has focused on Data and AI with a strong emphasis... Show more
Steve co-owns Analytic Endeavors, a boutique data consultancy helping organizations build Master Data - centralized data that is trusted, validated, and AI-ready. We design and deliver well-architected data platforms with strong data foundations, emb... Show more
Andrew Connell
Principal Software Engineer @ AvePoint · 22yr Microsoft MVP, Microsoft 365 Development
Andrew Connell is a Principal Software Engineer at AvePoint, where his focus is agentic engineering: using AI to build and ship product to market with more velocity than traditional development allows. He's a 22-year recipient of Microsoft's MVP Awar... Show more
Arjan Rijsdijk
Senior Power Platform Consultant | Microsoft Power Apps MVP | Developer | PowerAddict | Speaker
I’m Arjan Rijsdijk, a Power Platform enthusiast, or as I like to call myself, a Power Addict, based in the Rotterdam area in the Netherlands. I work at Powerbouwer on some of the coolest Power Platform projects, always focused on creating real added ... Show more
Kanwal Khipple is the CEO and Founder of 2toLead, a trailblazing consulting firm dedicated to innovative digital workplace transformations. Over the past decade, he has established himself as a trusted authority in creating engaging, award-winning em... Show more
Aditya Soni
DevOps/SRE Crafting Cloud-Native solutions | CNCF Ambassador | Speaker| Mentor | Ex-RedHat | CKA, KCNA
Aditya Soni is a DevOps/SRE tech professional He worked with Product and Service based companies including Red Hat, Forrester Research, Searce, and is currently positioned at SailPoint as a Senior DevOps Engineer. He holds AWS, GCP, Azure, RedHat, an... Show more
Data Adventurer | Power BI Enthusiast | Microsoft Fabric & Databricks Certified Data Engineer Sharing Insights and Empowering Through Data! Based in Frankfurt am Main, originally from Ukraine Show more
Sonja Wagenbichler is a recognized expert in Microsoft 365 Copilot, Copilot Agents, and Prompt Engineering. As Head of AI / Change & Adoption at Power Manufaktur GmbH, she leads transformative projects that enable the intelligent use of generative AI... Show more
Whitney Lee is a creator and systems thinker who explores how observability, AI, and platform engineering connect across the cloud native ecosystem. She brings humor, depth, and clarity to complex technologies while building original frameworks that ... Show more
David vonThenen
AI/ML Leader | Keynote Speaker | Book in Progress | Agentic AI, Deep Learning, Production AI | OSS Engineer & Developer Advocate | Python, Go, C++
David vonThenen is an AI/ML Engineer where he focuses on production AI systems, enterprise AI strategy, and architectures for explainable, governable, and reliable generative AI. His work spans Agentic AI, Graph RAG, Document RAG, AI memory systems, ... Show more
Kay Sauter has been working with SQL Server since 2013. His expertise covers SQL Server, Azure, Data Visualization, and Power BI. He is a Microsoft Data Platform MVP. Kay blogs on kayondata.com and is actively involved in various community project... Show more
Jessica has extensive experience and expertise within cloud architecture, cloud infrastructure and platform engineering. She's a hands-on technical leader who has built up and led platform teams within developer experience and data. She is also a Clo... Show more
Louëlla Creemers is a software developer from the Netherlands focusing on .NET, C#, and modern web technologies. She is active in the developer community as a teacher, content creator, blogger, and public speaker, with a focus on making advanced or n... Show more
Active in the IT industry since 2012, Leo Visser is a Subject Matter Expert for Azure and AI Foundry at BBTG. He advises organizations on AI, automation, and cloud architecture, combining tools like PowerShell, Power Platform, Azure Logic Apps, and n... Show more
As a Senior Solutions Architect at Pulumi with over 15 years of experience in the IT industry, including roles at the Schwarz Group and W&W Versicherungen, I bring extensive expertise with an end-user and enterprise focus. Currently working for a sta... Show more
Alex Shershebnev is a seasoned AI engineer and technology leader with over a decade of experience in AI, DevOps and MLOps. He is currently Lead DevRel at Zencoder, an AI coding assistant, and one of the founding members of the company, where he has s... Show more
Christian is a Microsoft MVP, Oracle ACE in Java and Fullstack engineer with over 15 years of experience as an engineer. He started with Java and since 9 years works also in the frontend with Angular, TypeScript and JavaScript. Besides his daily work... Show more
Denes Halasz
Microsoft Certified Trainer (MCT) | Power Platform Consultant | Community Leader & Speaker | Content Creator
Denes is a freelance Power Platform expert and co-leader of the Hungary Power Platform User Group. He began his journey in 2018 by developing company-wide Power BI solutions and quickly expanded into the broader Power Platform, becoming a citizen dev... Show more
Microsoft MVP for Business Applications and Microsoft Certified Trainer. I help organizations design and deliver modern digital solutions by combining Power Platform, Microsoft 365, and cloud technologies into a cohesive ecosystem. With over 18 ye... Show more
Java Champion, CNCF Ambassador & TAG DevEX Co-Chair, Microsoft MVP, Developer Advocate, Technical Marketing, Keynote Speaker, Published Author 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.