Most Active Speakers 2023

Sessionize proudly presents the list of the most active speakers in the year 2023!

  • 753 speakers
  • Auto-generated
Dave McAllister

Dave McAllister

Currently providing technical OSS insights for NGINX, Dave talks about the advantages of open technologies in solving software challenges. Dave has been a champion for open systems and open source from the early days of Linux to today's world of clouds and containers. Named one of the top ten pioneers in open source by Computer Business Review, having been involved before the phrase "open source" was coined, Dave often speaks on topics associated with emerging software, data and observability and how open source innovations power today's world.

Currently providing technical OSS insights for NGINX, Dave talks about the advantages of open technologies in solving software challenges. Dave has been a champion for open systems and open source from the early days of Linux to today's world of clo... Show more

Marco De Sanctis

Marco De Sanctis

My name is Marco and I have an incredible passion for technology which I had the privilege to turn into a job. I’ve been working with .NET since the first beta, focusing on ASP.NET and, more generally, anything that is web related. I’ve been an early adopter of Microsoft Azure – who remembers the portal in Silverlight? :) – and, since its introduction, Cloud technologies have represented the core of my professional interest.

Today I work in the beautiful London, where I’m playing my part in saving the planet being the CTO at Mondra. Getting involved in the .NET and Azure community is also a key aspect of my profession: I’m convinced that knowledge sharing is one of the best ways to improve our professional skills, and therefore I try to dedicate as much time as I can to activities such as writing articles or speaking at conferences and meetups. Thanks to that, I’ve been awarded as a Microsoft MVP for the last 15 years in a row.

My name is Marco and I have an incredible passion for technology which I had the privilege to turn into a job. I’ve been working with .NET since the first beta, focusing on ASP.NET and, more generally, anything that is web related. I’ve been an early... Show more

Brian Odhiambo

Brian Odhiambo

Busy advocating Kotlin ...

Busy advocating Kotlin ... Show more

Cleyra Uzcategui

Cleyra Uzcategui

Cleyra is a Venezuelan Software Engineer based in United Kingdom. Her passion for web development and user experience have led her to focus her career on creating products that are easy to use and accessible to everyone. She is also a promoter of diversity and inclusion in the tech industry and is always looking for ways to promote equal opportunity and representation, in her role as Women Techmakers ambassador, Women Developer Academy Mentor, Google Developers Group organiser and in her role as Affiliate Professor at University of Glasgow.

Cleyra is a Venezuelan Software Engineer based in United Kingdom. Her passion for web development and user experience have led her to focus her career on creating products that are easy to use and accessible to everyone. She is also a promoter of div... Show more

Iona Varga

Iona Varga

Azure, Check! Power Platform, Check! Not only am I a geek on technology, helping others is what thrives me!
From low-code and fusion-dev to process management and more. My background is in technology for healthcare and that is what excites me the most!

Azure, Check! Power Platform, Check! Not only am I a geek on technology, helping others is what thrives me! From low-code and fusion-dev to process management and more. My background is in technology for healthcare and that is what excites me the mo... Show more

Barbara Forbes

Barbara Forbes

Barbara Forbes is the Field CTO at OGD in the Netherlands. She is a Microsoft Azure MVP, MCT, and a GitHub Star. In her work Barbara aims to be the bridge between strategy, technology, education and development. Her focus includes the Microsoft Cloud Adoption Framework, Generative AI, Infrastructure as Code, PowerShell and GitHub. Barbara loves teaching in an accessible manner; in person, as a teacher for LinkedIn Learning and as a regular speaker at conferences and user groups. She is actively involved in the tech community, including being part of the organization of European events

Barbara Forbes is the Field CTO at OGD in the Netherlands. She is a Microsoft Azure MVP, MCT, and a GitHub Star. In her work Barbara aims to be the bridge between strategy, technology, education and development. Her focus includes the Microsoft Cloud... Show more

Raphael Koellner

Raphael Koellner

RAPHAEL KÖLLNER
Compliance Manager

Raphael Koellner combining the law and the information technology in particular the cloud computing. He worked for universities, Microsoft Germany (DX) and Microsoft Partner as consultant.

As CEO for KöllnService GmbH he works for huge international companies to migrate and implementate cloud solutions on a technical and a contract/law way.

Since 2019 Raphael Köllner is Microsoft Regional Director. He is the community guy, MVP for Office Server & Services, Windows 10 Insider MVP, MCT, Microsoft Student Partner Evangelist and become an attorney in Europe. He is the lead of the Office 365 Usergroup Germany, the Office 365 DACH, Leader of the Office 365 conference Germany, the SharePoint Saturday Cologne and one of 30 Windows 10 Top Insiders. Moreover he is member of the TEAMS Elite Team and the organizer of the TeamsCommunityDay. In this connection he leads the biggest Windows 10 Insider Community in Germany.

MVP: https://mvp.microsoft.com/en-us/mvp/Raphael%20%20Koellner-5000185

Microsoft Regional Director: https://rd.microsoft.com/en-us/raphael-koellner

RAPHAEL KÖLLNER Compliance Manager Raphael Koellner combining the law and the information technology in particular the cloud computing. He worked for universities, Microsoft Germany (DX) and Microsoft Partner as consultant. As CEO for KöllnSe... Show more

Kervin Kueny

Kervin Kueny

Curieux de nature, j'accompagne les équipes dans la tempête du changement. Ce n'est pas toujours facile,
et pourtant, cela réserve toujours des moments fantastiques.
Ma devise de grand philosophe : Le cerveau est un organe tellement formidable, que de nos jours, presque tout le monde utilise le sien (Chris Deniaud)

Curieux de nature, j'accompagne les équipes dans la tempête du changement. Ce n'est pas toujours facile, et pourtant, cela réserve toujours des moments fantastiques. Ma devise de grand philosophe : Le cerveau est un organe tellement formidable, qu... Show more

Régis Schneider

Régis Schneider

Je suis marié, avec 2 enfants (14 & 15 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre !
Le mot que j'apprécie le moins : "Normal".
Un mot que je n'apprécie pas trop : "Bienveillance". Un principe que j'apprécie beaucoup : "Bienveillance".
Sinon, tombé dans Agile en 2009, je ne veux maintenant plus m'en sortir, que ce soit à la maison ou au boulot. Je tente de développer depuis un positionnement de facilitateur, de produit et d’équipe.

Je suis marié, avec 2 enfants (14 & 15 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre ! Le mot que j'apprécie le moins : "Normal". Un mot que je n'apprécie... Show more

Victoria Mutai

Victoria Mutai

Victoria Mutai is a software developer and co-lead Firebase Kenya. She works as a Supplier Intelligence Specialist at Assent Kenya, where she develops python scripts that are used for data analysis and web scraping. She holds a Bsc in Information Technology at Kirinyaga University . Victoria Mutai is passionate on making use of Firebase and implementing it on her projects and day to day job.

In her spare time, Victoria enjoys training people on programming fundamentals in Web development  and volunteering in her community.

Victoria Mutai is a software developer and co-lead Firebase Kenya. She works as a Supplier Intelligence Specialist at Assent Kenya, where she develops python scripts that are used for data analysis and web scraping. She holds a Bsc in Information Tec... Show more

Bill Wilder

Bill Wilder

AI consultant with deep background spanning software architecture, Azure, and cybersecurity. Boston Azure AI founder. Microsoft MVP. Microsoft Certified Trainer (MCT). CISSP.

AI consultant with deep background spanning software architecture, Azure, and cybersecurity. Boston Azure AI founder. Microsoft MVP. Microsoft Certified Trainer (MCT). CISSP. Show more

Kathrin Borchert

Kathrin Borchert

Kathrin works and live near Hamburg, Germany. She has many years of experience in Power BI and Power Platform. She is also the organizer of the German PowerBIDays and PowerBreak (powerbidays.com). She shares her knowledge on LinkedIN, Twitter and at yodabi.com.

Kathrin works and live near Hamburg, Germany. She has many years of experience in Power BI and Power Platform. She is also the organizer of the German PowerBIDays and PowerBreak (powerbidays.com). She shares her knowledge on LinkedIN, Twitter and at ... Show more

Ivan Arribas

Ivan Arribas

https://vandalytic.com (Blog de Power BI)
https://waibbo.com (partner Microsoft especializado en Analítica de Datos)

https://vandalytic.com (Blog de Power BI) https://waibbo.com (partner Microsoft especializado en Analítica de Datos) Show more

Danilo Dominici

Danilo Dominici

Danilo Dominici is a senior consultant, speaker, and author specializing in SQL Server since version 6.5, mostly in the design, implementation, monitoring, and performance tuning of SQL Server-based solutions, both on-premise and in the cloud (Azure/AWS). He is also specializing in PostgreSQL performance tuning, high availability and monitoring. Danilo is a Microsoft Certified Trainer since 2000, a 6-times Data Platform MVP (2014-2020) - now MVP Alumni, an active member of UGISS (the Italian SQL Server User Group), and has been the co-leader of the PASS Global Italian Virtual Chapter. He wrote some of the chapters of the Microsoft SQL Server 2012 and 2014 Upgrade Guides and co-authored the book "Azure Data Solutions: an Introduction" published by Microsoft Press.

Danilo Dominici is a senior consultant, speaker, and author specializing in SQL Server since version 6.5, mostly in the design, implementation, monitoring, and performance tuning of SQL Server-based solutions, both on-premise and in the cloud (Azure/... Show more

Kyle Kotowick

Kyle Kotowick

Dr. Kyle Kotowick is the founder of a Canadian consulting and development firm focusing on cloud infrastructure, security, and Internet-of-Things implementations for high-growth clients. He completed his Ph.D. in MIT's Computer Science and Artificial Intelligence Laboratory, joint with the Department of Aeronautics and Astronautics. He has served as a consultant, systems architect, and developer for global firms, startups, and universities; as a project lead for military medical and communication technology; and as a researcher for military navigation systems and for life support systems in space. He specializes in working with both startups and enterprise clients to define requirements and explore possible solutions, as well as in leading the development of project architecture, cloud services, and back-end software.

Dr. Kyle Kotowick is the founder of a Canadian consulting and development firm focusing on cloud infrastructure, security, and Internet-of-Things implementations for high-growth clients. He completed his Ph.D. in MIT's Computer Science and Artificial... Show more

Rustam Mehmandarov

Rustam Mehmandarov

Experienced Software Engineer | Architect | Keynote & Public Speaker | Java Champion | Google Developer Expert for Cloud | Docker Captain | Oracle ACE Pro | Community Leader | Mentor | Ex-leader of JavaZone and Norwegian JUG – javaBin.

Experienced Software Engineer | Architect | Keynote & Public Speaker | Java Champion | Google Developer Expert for Cloud | Docker Captain | Oracle ACE Pro | Community Leader | Mentor | Ex-leader of JavaZone and Norwegian JUG – javaBin. Show more

Dominika Zając

Dominika Zając

Full-stack developer who loves sharing their knowledge and singing. Google Developer Expert for Web Technologies, Microsoft Most Valuable Professional in Web technologies, senior software engineer at Qualtrics, public speaker, trainer and blogger. Talking and writing about Web, a11y, teaching others how to code and code best practices.

Full-stack developer who loves sharing their knowledge and singing. Google Developer Expert for Web Technologies, Microsoft Most Valuable Professional in Web technologies, senior software engineer at Qualtrics, public speaker, trainer and blogger. Ta... Show more

Renuka Kelkar

Renuka Kelkar


Renuka Kelkar is a trailblazing figure in the tech industry, known for her multifaceted roles as Co-Founder of ARNA Genext Solutions, Google Developer Expert for Flutter and Dart, and Founder of the TechPowerGirls Community. With a passion for fostering diversity and inclusion, she serves as an organizer for GDG London and a WomenTechmaker ambassador. Renuka's impactful contributions were recognized with the prestigious Diversity and Inclusion Award from Google in 2023. Her dynamic speaking prowess has earned her the prestigious title of Most Active Speaker for the past two years consecutively on Sessionize, cementing her reputation as a driving force in the tech community.

Renuka Kelkar is a trailblazing figure in the tech industry, known for her multifaceted roles as Co-Founder of ARNA Genext Solutions, Google Developer Expert for Flutter and Dart, and Founder of the TechPowerGirls Community. With a passion for fost... Show more

Eugene Meidinger

Eugene Meidinger

Eugene Meidinger works as a BI consultant and Pluralsight author, specializing in Power BI and Azure. He has been working with data for 10 years.

Eugene Meidinger works as a BI consultant and Pluralsight author, specializing in Power BI and Azure. He has been working with data for 10 years. Show more

Dean Schuster

Dean Schuster

Dean Schuster has been envisioning and creating human-centered digital products since the advent of the commercial web. He is founder and owner of the user experience strategy firm truematter, leading the team to help national and international organizations change the way they do business online. He travels all over the world to speak and teach, mentoring professionals and challenging teams to a higher standard for digital experiences.

Dean is also an avid ultra-marathoner and trail racer, often found in out-of-the-way places, including Antarctica.

Dean Schuster has been envisioning and creating human-centered digital products since the advent of the commercial web. He is founder and owner of the user experience strategy firm truematter, leading the team to help national and international organ... Show more

Matteo Pagani

Matteo Pagani

Matteo is a Cloud Solution Architect in the Modern Work - AI, Apps & Ecosystem team in Microsoft. In his role, he works with global companies to build innovative projects for the Microsoft 365 ecosystem, based on the latest innovations in the AI & applications development space. He has a strong passion for knowledge sharing and he supports the developer community by writing articles, blog posts and books and by speaking at conferences all around the world. Before joining Microsoft, he was a Microsoft MVP in the Windows Development category and a Nokia Developer Champion for almost 5 years.

Matteo is a Cloud Solution Architect in the Modern Work - AI, Apps & Ecosystem team in Microsoft. In his role, he works with global companies to build innovative projects for the Microsoft 365 ecosystem, based on the latest innovations in the AI & ap... Show more

Edyta Gorzon

Edyta Gorzon

Edyta’s story with Microsoft technology has started in 2013. She helps organizations with digital transformation by developing change management strategies, guiding companies through the entire process, and training end-users on the practical use of Microsoft 365. She believes technology should be helpful to all users, regardless of their role in the organization or their technical abilities. Only then we can talk about the success of digitization. In addition to that Edyta is an active Microsoft Community Enthusiast. Since 2015 she organizes SharePoint Saturday Warsaw, now CollabDays Poland, co-hosts ACM Teams Europe, and speaks at Microsoft Community conferences.
Microsoft Most Valuable Professional M365 Apps & Services since 2019.

In her spare time, you can meet her reading a book, running, caring for friends, or with a suitcase at the airport. An empathetic extrovert by nature. 😉

Edyta’s story with Microsoft technology has started in 2013. She helps organizations with digital transformation by developing change management strategies, guiding companies through the entire process, and training end-users on the practical use of ... Show more

Gien Verschatse

Gien Verschatse

Gien Verschatse is an experienced consultant and software engineer that specialises in domain modelling and software architecture. She has experience in many domains such as the biotech industry, where she specialised in DNA building. She's fluent in both object-oriented and functional programming, mostly in .NET. As a Domain-Driven Design practitioner, she always looks to bridge the gaps between experts, users, and engineers.

Gien is studying Computer Science at the OU in the Netherlands. As a side interest, she's researching the science of decision-making strategies, to help teams improve how they make technical and organisational decisions. She shares her knowledge by speaking at international conferences.

And when she is not doing all that, you'll find her on the sofa, reading a book and sipping coffee.

Gien Verschatse is an experienced consultant and software engineer that specialises in domain modelling and software architecture. She has experience in many domains such as the biotech industry, where she specialised in DNA building. She's fluent in... Show more

Martin Ullrich

Martin Ullrich

I am a software engineer working on diverse tech stacks but focusing mostly on .NET in C#, Web Technologies and iOS/Swift.

I am a technology enthusiast who always works on improving development and DevOps processes at our company to make life easier for developers and help deliver high. I was awarded Microsoft MVP for community and open-source work around .NET Core.

I am a software engineer working on diverse tech stacks but focusing mostly on .NET in C#, Web Technologies and iOS/Swift. I am a technology enthusiast who always works on improving development and DevOps processes at our company to make life easi... Show more

Andrea Dottor

Andrea Dottor

Andrea Dottor, I am a consultant, developer, and trainer in the .NET field (primarily ASP.NET and Blazor), author of the podcast 📢 '.NET in Pillole,' and a 🏆 Microsoft MVP since 2008.

I am one of the founding members of XE - Development User Group (XeDotNet), where I currently serve as president.

I began my journey in software development in 2002 using the .NET Framework in the industrial automation sector, later transitioning to the web world in 2005, a field that has fascinated me and continues to provide new challenges and opportunities for growth.

Andrea Dottor, I am a consultant, developer, and trainer in the .NET field (primarily ASP.NET and Blazor), author of the podcast 📢 '.NET in Pillole,' and a 🏆 Microsoft MVP since 2008. I am one of the founding members of XE - Development User Gro... Show more

Himanshu Singh

Himanshu Singh

Himanshu is a Full Stack Kotlin engineer and works as Android Engineer on the professional side. He is also a Google developer expert in Android and Kotlin. He is an active blogger, speaker, and content creator. He loves to mentor and share his knowledge to help people move into the development world!

Himanshu is a Full Stack Kotlin engineer and works as Android Engineer on the professional side. He is also a Google developer expert in Android and Kotlin. He is an active blogger, speaker, and content creator. He loves to mentor and share his knowl... Show more

Ahmed Tikiwa

Ahmed Tikiwa

Ahmed Tikiwa is a Google Developer Expert for Android and a seasoned software engineer with over 12 years of experience and possesses a strong passion for developing world-class applications that can help make a difference. He has experience in frontend and backend systems, where he has built enterprise solutions for major telecommunication companies. He is currently a Senior Software Engineer based in Utrecht, The Netherlands, and an official contributor to Google Developers Dev Library.

Ahmed Tikiwa is a Google Developer Expert for Android and a seasoned software engineer with over 12 years of experience and possesses a strong passion for developing world-class applications that can help make a difference. He has experience in front... Show more

Alexander Eggers

Alexander Eggers

My mission is to enhance workplace productivity through technology. As the founder of a successful company since 1996, with 80 employees, my expertise in business processes significantly aids in the adoption of Microsoft365, especially Microsoft Teams and Copilot, among our clients. I have spearheaded adoption workshops for SMBs since Microsoft Teams' launch in 2017, leading to numerous successful projects. Additionally, I support other partners in Microsoft365 implementations and frequently speak at industry events, including Microsoft conferences and virtual summits, to share insights and promote digital transformation. Since 2020 I am a Microsoft MVP and MCT for Microsoft365.

My mission is to enhance workplace productivity through technology. As the founder of a successful company since 1996, with 80 employees, my expertise in business processes significantly aids in the adoption of Microsoft365, especially Microsoft Team... Show more

Ruby Jane Cabagnot

Ruby Jane Cabagnot

Ruby Jane Cabagnot, a proficient web developer, speaker, and co-author of Practical Enterprise React, is an active figure in the tech world. Passionate about programming languages like TypeScript, C#, and React, RJ's ongoing learning fuels her drive for innovation and boundary-pushing. She is dedicated to educating and promoting women in technology.

Ruby Jane Cabagnot, a proficient web developer, speaker, and co-author of Practical Enterprise React, is an active figure in the tech world. Passionate about programming languages like TypeScript, C#, and React, RJ's ongoing learning fuels her drive ... Show more

Nico Jacobs

Nico Jacobs

Dr. Nico Jacobs started his career as a data mining researcher at the university of Leuven, Belgium. He joined U2U in 2004 as an instructor, author and technology strategist. His current technical expertise focuses on Power BI and Data Engineering/Data Science on Microsoft Azure. As a passionate trainer, Nico likes to inspire his students to gain a thorough knowledge on the subject. Nico regularly speaks at local and international conferences. You can see what he’s up to by following @SqlWaldorf on Twitter .

Dr. Nico Jacobs started his career as a data mining researcher at the university of Leuven, Belgium. He joined U2U in 2004 as an instructor, author and technology strategist. His current technical expertise focuses on Power BI and Data Engineering/Da... Show more

Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers.

Most Active Speakers 2023

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 2023.

The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2023. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 25 thousand unique accepted speakers this year, the 3% is 771. 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 2023. 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.