Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Ásgeir brings nearly two decades of experience in designing and implementing scalable data platforms using Microsoft technologies. With deep expertise in data architecture, data engineering, and analytics, he helps organizations turn complex data lan... Show more
Software craftsman, husband, father, ex-sportsman and inquiring reader. Since I was young I have loved taking apart and reassembling things to understand how they work. Now, this passion has become my job: the step from Lego® to software development ... Show more
David Yitzhak, Team leader of Big Data and Nosql databases David Yitzhak has over 24 years of experience with SQL Server, Oracle, Sybase and PostgreSQL . He is an applicative & infrastructure DBA for relational and Nosql solutions (MongoDB, Redis),... Show more
I work on open source projects around software tooling platforms. My current project is Zowe, which is part of the Linux Foundation and Open Mainframe Project where I am part of the leadership committee and an ambassador. Prior to Zowe I worked on ... Show more
Dr Roushanak Rahmat
Enterprise AI Architect (GenAI & Agentic FDE) 🔷 Google Developer Expert (AI & Cloud) 🔷 Top 100 Women in Tech 🔷 US Patent Inventor 🔷 Keynote & Tech Speaker
Dr Roushanak Rahmat is an Enterprise AI Architect (Forward Deployed Engineering – GenAI & Agentic AI), Google Developer Expert (AI & Cloud), and recognized as one of the Top 100 Women in Tech (2025). With a PhD in Artificial Intelligence and over 15 ... Show more
Michael Seidl
IT Process Automation Expert | define, automate, and delegate your IT Processes with Microsoft Automation and au2mator | ITSM Mastermind | Microsoft MVP
Michael is an IT Process automation Expert with Customers all around the Globe, a Cloud and Datacenter MVP since 2015, and an au2mation enthusiast. 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
Sander Berkouwer works as an independent identity architect in the Netherlands, where he helps organizations make the most out of Microsoft products, services, strategies and technologies. Sander blogs on DirTeam.com. He regularly gets invited as spe... Show more
Mitchel Sellers is globally known as a 17-time Microsoft MVP, an ASPInsider, a DNN MVP, is an MCP (Microsoft .NET, ASP.NET and SQL Server), and CEO of IowaComputerGurus Inc. Sellers has a deep understanding of software development and when speaking f... Show more
Dan Vega is a Spring Developer Advocate at VMware Tanzu. He has been developing software for the web for over 20 years and his superpower is problem-solving. Dan is a blogger, YouTuber, course creator, and speaker. He is a lifelong learner and his pa... Show more
Gerardo is a big fan of DevOps and cloud technologies. He loves to code interesting backend stuff in languages like NodeJs, Java, etc..... He participates as speaker and mentor in different software communities in Costa Rica. He is the first Google D... Show more
Driven by the mission to make people's lives easier, Tim Damen actively advocates for and builds a web that serves everyone equally. Tim is a frontend developer, web accessibility specialist, and engineering manager from Amsterdam, the Netherlands 🇳... Show more
Christopher Schmidt is a Principal Program Manager with deep expertise in real-time data systems, specializing in message streaming and event-driven architectures. At the forefront of Microsoft’s efforts in modern data platforms, Christopher has led ... 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
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
Jérôme is a professional coach, agile coach, facilitator and trainer. For 19 years, he has been one of the pioneers who have develop an agile culture within Lectra teams. He is now in charge of a team of internal coaches that he created and who supp... Show more
Jess Pomfret is a Data Platform Engineer and a dual Microsoft MVP. She started working with SQL Server in 2011, and enjoys problem-solving and automating processes with PowerShell. She also enjoys contributing to dbatools and dbachecks, two open ... Show more
Anu Natarajan is a Data, AI, and Cloud Architect with over 25 years of experience delivering modern data platforms, AI solutions, and cloud-native applications. She is a Microsoft Data Platform & AI MVP, Microsoft Certified Trainer (MCT), and Microso... 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
Patrycja Wegrzynowicz
Independent Consultant | Java Champion | Oracle ACE | SRE | SecDevOps | Speaker
Patrycja is a principal consultant and founder of Yon Labs, a startup developing automated tools for detecting and refactoring security vulnerabilities, performance anti-patterns, and cloud misconfigurations. She brings deep expertise in Java, C++, S... Show more
Sven Peters, AI evangelist at Atlassian, has been studying trends in software development for the last 15 years, uncovering the cultural and technical attributes to help development teams work effectively and drive innovation. He has 20 years of expe... Show more
Miley is a Developer Advocate committed to build and contribute to open source. She is the co-chair and keynote speaker for KubeCon+Open Source Summit and AI Dev China 2024. She works on WasmEdge runtime under Linux Foundation as the founding member ... Show more
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
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
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
Santhosh is a results-oriented Senior Software Architect with over 18 years of experience leading and delivering innovative software solutions for enterprises specialising in financial institutions and cloud migration. Over the last decade, Santho... Show more
Geoff Ables is a keynote speaker, best-selling author, and a Microsoft MVP recognized in the Copilot, Power Platform, Dynamics 365, and Modern Work (SharePoint, Teams and Viva) categories. A recognized thought leader on artificial intelligence an... Show more
Peter Ward is CEO of SoHo Dragon, a New York–based Microsoft Partner — though he began as a CTO and never entirely stopped behaving like one. While much of the technology industry focuses on what’s new, Peter is more interested in what works. He h... Show more
Jeremy helps developers by sharing his own struggles, mostly in technology, but also with being more social as an introvert, understanding potential for learning, and playing banjo. He has worked as a corporate developer, as a Chief Improvement Offic... Show more
André is a Data Engineer and architect mostly in Azure. He has done a lot of DBA work on 1000’s of SQL Servers where he discovered his love for Powershell, architecting data solutions, building and tuning ETL processes (with BIML), and even implement... 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.