Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Keith Atherton
Power Platform & Copilot Studio Architect | Microsoft MVP | MCT | Microsoft Certified | Claude Certified | User Group Leader | LinkedIn Learning Instructor | Speaker | Women in Power (Platform) Mentor
Power Platform & Copilot Studio Architect, Microsoft MVP for Business Applications, Microsoft Certified Trainer (MCT), Microsoft certified, Claude Certified, published LinkedIn Learning instructor, public speaker, Power Platform Community High Five u... Show more
Hossein is a Senior Principal Engineer with nearly a decade of experience architecting distributed systems and scalable infrastructure. From engineering enterprise-grade, on-premises Kubernetes platforms to leading complex DevOps transformations, he ... Show more
Nikhilesh Tayal
Google Developer Expert for AI. Founder - "AI ML etc." (an educational platform for Senior Tech professionals to learn AI). 70+ global speaking assignments.
Nikhilesh is an entrepreneur, teacher and tech nerd He is an IIT Kharagpur alumnus. He is also a Google Developer Expert in AI and has over 20,000 LinkedIn followers. Currently, he runs "AI ML etc." - an AI-enabled educational platform for senior I... Show more
Giorgio Galassi
Freelance Senior Angular Consultant | AI Native | Insurance & Enterprise | Remote EU/CH/US
Senior Frontend Engineer with 10+ years of experience building large-scale, production-grade web applications. Specialized in Angular, TypeScript, NgRx, RxJS, and Nx, with a strong focus on component architecture, state management, micro-frontend pat... Show more
Vadym is a Software Development Engineer and Google Developer Expert (GDE) in Flutter & Dart, driven by a dual passion: engineering world-class mobile solutions and elevating the developers around him. His deep expertise and active contributions to t... Show more
As a Principal Architect with a specialization in Azure and AI, Arin excels at pioneering new services in Azure, bringing innovative solutions to his clients. He is dedicated to keeping the developer community updated with new technology, advocati... Show more
Hugo Guerrero
Building the Infrastructure for the Agentic Era | AI, MCP, Kubernetes & Cloud Native | Speaker on AI, APIs & AX/DX
Hugo Guerrero helps build the infrastructure for the agentic era. As a technology leader, he focuses on AI and agentic infrastructure, modern API strategy, and scalable cloud-native systems. A frequent speaker and advocate for developer ecosystems, H... Show more
Prerit is a Cloud-Native Platform Leader with extensive experience designing and scaling secure, resilient cloud infrastructures. As the former CTO of KubeCloud, he built no-code solutions bridging Cloud, DevOps, and SRE, leading the company to a suc... Show more
Nikolas Behar is an esteemed Red Team leader and consultant with a rich history in cybersecurity, having previously held roles at Deloitte, Accenture, and PwC. His expertise lies in red teaming and threat intelligence, where he excels in integrating ... Show more
François Martin is a senior full-stack software engineer at Karakun AG in Switzerland, passionate about building high-quality applications. He co-authored the open-source JavaFX frameworks WorkbenchFX and PreferencesFX, and organizes Basel's Hackerga... Show more
Mary Grygleski
Sr. VP-AI Evangelism@LuMay,VP of Global (Western Hemisphere-AI Collective), Technical Architect and Advocate,TED/x Speaker,Java Champion,President of Chicago-JUG, Organizer of AI Collective-Chicago
Mary is a Technical Solutions Architect and Advocate in the Emerging Technology area. She started as an engineer in Unix/C, then transitioned to Java around 2000 and has never looked back since then. After 20+ years of being a software engineer and... Show more
Massimo Crippa is a cloud enthusiast with 20+ years of experience shaping enterprise solutions on Microsoft technologies, with a tech-intensive mindset and a strong passion for exploring emerging technologies. He began his career in the Italian IC... 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
Edoardo Dusi is a Senior Developer Advocate at AWS, based in Italy. He started as a software developer, moved into leading engineering teams, and then into developer relations, where he ran the DevRel & Community team at Storyblok before joining AWS.... Show more
Maurice has been working in the IT industry for the past 25 years. His focus is on the areas of Windows deployment, device management, Entra ID security, and secure productivity. Maurice has been an MCSE since 2008 and received his first MVP award in... Show more
Mauro Morales is a Guatemalan software developer and speaker. He’s currently a Staff Engineer at Spectro Cloud, where he’s part of the team building Kairos — an open-source Linux distribution for running Kubernetes at the edge. Mauro regularly speaks... Show more
Daniel Yuschick thrives at the intersection of design and development, specializing in leading accessible and resilient design systems. As a Lead Design System Developer, he is dedicated to bridging the gaps between design, code, and people, while me... Show more
Dinoy Raj is a Product Engineer and Android specialist with a deep focus on building scalable, high-performance mobile experiences using Kotlin and Jetpack Compose. Currently at Strollby, he architects multi-module B2B and B2C travel applications, sp... Show more
Mihaela is a Senior Software Architect at Systematic, Romania, and an Oracle ACE Associate for Java. PhD in Artificial Neural Network algorithms, Associate Lecturer at the University of Cybernetics and Informatics in Bucharest, she is passionate abou... Show more
Hrittik is a Platform Advocate at vCluster Labs and a CNCF Ambassador with expertise in cloud native technologies and open source communities. He has contributed extensively to developer advocacy, technical writing, and community engagement. Hrittik ... Show more
Software Developer. In love with Web and .NET. I like to try and learn always something new. I try to share my experience living the community. I'm the host of "Spike time" (https://www.ugidotnet.org/tv/3307/Spike-time) and sometimes you can find ... 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
Daniele Mario Areddu
Backend & AI Developer | Global Technologies Italia | CS Student @ University of Calabria | Community Lead @ Velletri.dev
Daniele Mario Areddu is a young Italian technologist, international conference speaker, Backend and AI Developer at Global Technologies Italia, and Computer Science student at the University of Calabria. Over the past two years, he has delivered a... Show more
Computer engineer with 15 years of experience in implementing business intelligence, engineering, and data analytics solutions. I love learning new things, pushing technology further, and collaborating on exciting projects that add value at all level... Show more
Experienced professional with a diverse background in Software, Architecture, infrastructure, SRE, OpenSource. Versatile in Research and Development. Proven track record in various roles across startups and corporations. Committed team player, thrivi... Show more
Cecilia Wirén, Evidi (formerly Active Solution) with over two decades of experience in the world of Microsoft development. Her accomplishments have been recognized multiple times with the Microsoft MVP award. Solves customers’ problems with code a... Show more
Arthur (or Art, take your pick) has been a software engineer for 22 years and has worked on things as exciting as analysis software for casinos and things as boring as banking websites. He is an advocate for talking openly about mental health and psy... Show more
Juliana Smith is a multi‑award‑winning data expert with a background in Physical Oceanography. For over 15 years she has explored the stories hidden within data. Since 2020 she has specialised in analytics engineering and data design. Juliana transla... Show more
Shawn Dorward is the Chief Operating Office at Innovia Consulting and a seasoned business and technology leader with over 25 years of experience in ERP and CRM implementations. His expertise spans a wide range of industries and organizations—from sm... Show more
Davide Passafaro
Google Developer Expert in Angular ❮ ❯ | Senior Software Engineer 💻📱 | GDG Roma Città Organizer 📣
Senior Frontend Engineer and Google Developer Expert in Angular, Davide leads the GDG Roma Città and Angular Roma communities. While rooted in Angular, he is currently expanding his horizons into Node.js, React, and AI experimentation to share fre... 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.