Most Active Speakers 2023

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

  • 758 speakers
  • Auto-generated
Nikola Mitrović

Nikola Mitrović

Seasoned software engineer with experience that spans nearly a decade, with technical expertise in micro-frontend architecture and web performance. Enthusiastic public speaker with a passion for crafting exceptional web experiences. Business domain expertise in areas like EdTech, HealthTech and Digital Identity.

For the last couple of years in leadership roles, inspiring a culture of technical excellence, continuous learning, collaboration and psychological safety within the organization. Leading with empathy, honesty and passion, empowering team with trust and autonomy.

Seasoned software engineer with experience that spans nearly a decade, with technical expertise in micro-frontend architecture and web performance. Enthusiastic public speaker with a passion for crafting exceptional web experiences. Business domain e... Show more

Marcin Siewnicki

Marcin Siewnicki

I am Microsoft 365 solution architect. I create applications and solutions that improve and facilitate work using Power Platform, SharePoint, and Teams.

My adventure in IT began in 2005. Since then I have been creating and implementing business applications based on SharePoint and Microsoft 365 platforms. I am a big fan of task and process automation (Power Automate) and Modern Workplace platforms (Microsoft Teams).

Privately a husband, father of 2 sons. Fan of science fiction and cyberpunk, futurist. I co-organize the SharePoint Saturday Warsaw conference and speak at Microsoft's community events.

I am Microsoft 365 solution architect. I create applications and solutions that improve and facilitate work using Power Platform, SharePoint, and Teams. My adventure in IT began in 2005. Since then I have been creating and implementing business ap... Show more

Angeliki Patsiavou

Angeliki Patsiavou

I am a Microsoft Business Applications MVP and Prosci® certified, Dynamics 365 and Power Platform functional lead. My experience is in business applications, CRM operations and enterprise change. With a FTSE 100 client background in Financial Services, CRM and Marketing across Microsoft, Adobe, and Salesforce platforms, I manage global transformation and adoption programs with deep human impact. I am also a speaker in the Microsoft Community, advocating as a human evangelist about user-centered design and enabling governance.

I am a Microsoft Business Applications MVP and Prosci® certified, Dynamics 365 and Power Platform functional lead. My experience is in business applications, CRM operations and enterprise change. With a FTSE 100 client background in Financial Service... Show more

Glenn Colpaert

Glenn Colpaert

Glenn Colpaert is co-founder and CEO at Zure Belgium. He is a Microsoft Azure MVP since 2014 and is a frequent speaker at national and international events.

With over 18 years of experience gained in many national and international projects, he can adapt quickly to customer-specific situations and scenarios.
Currently, he’s mainly focused on designing and building secure, scalable cloud-based solutions on Microsoft Azure.

Glenn likes to share his experience with the community and is he's an active crew member of the Belgian Azure User Group (AZUG).

Glenn Colpaert is co-founder and CEO at Zure Belgium. He is a Microsoft Azure MVP since 2014 and is a frequent speaker at national and international events. With over 18 years of experience gained in many national and international projects, he ca... Show more

Alec Harrison

Alec Harrison

I'm Alec Harrison, a Microsoft Azure MVP and software consultant specializing in cloud-native development, AI integration, and developer enablement. I lead several user groups, including the Iowa Microsoft Azure User Group, and I'm passionate about helping developers stay ahead of the curve with emerging tech.

I also host the Engineer in the Loop podcast and blog at EITL.ai, where I explore the intersection of AI, cloud, and real-world software engineering.

I'm Alec Harrison, a Microsoft Azure MVP and software consultant specializing in cloud-native development, AI integration, and developer enablement. I lead several user groups, including the Iowa Microsoft Azure User Group, and I'm passionate about h... Show more

Shivay Lamba

Shivay Lamba

Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development.

He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and is currently a MLH Fellow. He has also worked at organizations like Amazon, EY, Genpact. He is a Tensorflow.JS SIG member and community lead from India.

Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development. He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and is curre... Show more

Manuel Sanchez Rodriguez

Manuel Sanchez Rodriguez

Global CTO of the Microsoft Alliance at NTT DATA Corp. | Microsoft MVP Azure & AI Platform.
Passionate about new technologies, highlighting Netcore , Microsoft Azure, Xamarin, IA, Bots and ASP.NET. Passionate about team management. I contribute to the developers community writing articles in my personal blog and giving speeches in numerous events. I am also one of the Netcoreconf leads.

Global CTO of the Microsoft Alliance at NTT DATA Corp. | Microsoft MVP Azure & AI Platform. Passionate about new technologies, highlighting Netcore , Microsoft Azure, Xamarin, IA, Bots and ASP.NET. Passionate about team management. I contribute to ... Show more

Diego Zapico

Diego Zapico

Expert Architect at NTT DATA. Microsoft Azure MVP. ♿🏎️🛫

Expert Architect at NTT DATA. Microsoft Azure MVP. ♿🏎️🛫 Show more

Vadym Kazulkin

Vadym Kazulkin

I'm Vadym Kazulkin 🇺🇦, husband and father of 3. I'm AWS Serverless Hero and Head of Development at ip.labs based in Bonn. I have been in the tech industry for over 25 years. My current focus and interests include the design and implementation of highly scalable and available applications in the AWS Cloud, with a special passion for Serverless, Generative, and Agentic AI, as well as the optimization of Java applications (also utilizing Spring Boot, Micronaut, and Quarkus frameworks) on AWS Lambda.

I'm also the co-organizer of the Java User Group Bonn meetup, a frequent speaker at various national and international events, and a regular author of articles in different published and online magazines and on my online blog.

I'm Vadym Kazulkin 🇺🇦, husband and father of 3. I'm AWS Serverless Hero and Head of Development at ip.labs based in Bonn. I have been in the tech industry for over 25 years. My current focus and interests include the design and implementation of hi... Show more

Lorenzo Pieri

Lorenzo Pieri

It's never easy to describe oneself, especially when one is interested in so many different topics and fields and I guess that says something about who I am afterall. I find it fun and entertaining to teach difficult subjects through exotic methods and stories and people seem to also have fun while I do so.

I believe in the union between science and human values (read fun) and I often work and participate in non-profit organization and projects which aim to bring culture and scientific knowledge.

It's never easy to describe oneself, especially when one is interested in so many different topics and fields and I guess that says something about who I am afterall. I find it fun and entertaining to teach difficult subjects through exotic methods a... Show more

Mathias Halkjaer

Mathias Halkjaer

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 all-in-all maximize the impact of their data.

Being a Microsoft Data Platform MVP, he is very passionate about sharing anything with community, especially something around turning data into impact!

With a background in Product Development and Innovation, Mathias brings a unique 'Data Product' perspective to the realm of data architecture, and is obsessed with the bigger picture. With his slightly rebellious attitude, he's not afraid to challenge the status quo and break industry norms to find new and better solutions.

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

Prathyusha(Prathy) Kamasani

Prathyusha(Prathy) Kamasani

I’m Prathyusha (Prathy) Kamasani, a solopreneur behind Data Nova, a small, purpose-driven business specialising in Microsoft BI solutions. With over 15 years of experience in the data space, I take a design-first approach to everything I build. Whether I’m developing well-structured data platforms or creating user-centric Power BI reports, my goal is to make data accessible, intuitive, and genuinely impactful.

From delivering end-to-end Microsoft Fabric solutions to crafting interactive data visualisations, I bring together design and data to help organisations uncover the insights that truly matter.

I’m also passionate about sharing knowledge and building community. Since 2016, I’ve been running the London Microsoft Fabric User Group. You’ll often find me speaking at conferences or hosting events at the London Fabric User Group

I’m Prathyusha (Prathy) Kamasani, a solopreneur behind Data Nova, a small, purpose-driven business specialising in Microsoft BI solutions. With over 15 years of experience in the data space, I take a design-first approach to everything I build. Wheth... Show more

Uwe Ricken

Uwe Ricken

Uwe Ricken has been working with IT systems since the early 1990s, with a deep focus on Microsoft SQL Server starting from his work on Membership Software for the American Chamber of Commerce in Germany - later rolled out across five European countries. His passion for SQL Server took off in 2007 when he joined Deutsche Bank AG as a database administrator, gaining hands-on experience in high-performance, enterprise-scale environments.

With over three decades of experience in database development and operations, Uwe earned the prestigious "Microsoft Certified Master – SQL Server 2008", the highest technical certification at the time. In 2013, he was honored with his first "Microsoft MVP Award" for his contributions to the SQL Server community across Germany and Europe.

Since 2010, Uwe has been sharing his expertise through his blog https://sqlmaster.de, offering deep dives into SQL Server internals, performance tuning, and real-world troubleshooting.

A regular speaker at international conferences and user groups, Uwe’s sessions focus on Database Internals, Indexing Strategies and Advanced SQL Development - always with a practical, performance-driven mindset.

Uwe Ricken has been working with IT systems since the early 1990s, with a deep focus on Microsoft SQL Server starting from his work on Membership Software for the American Chamber of Commerce in Germany - later rolled out across five European countri... Show more

Haja (Yadz) Rambelontsalama

Haja (Yadz) Rambelontsalama

With a zest culture hacker and a dose of product coach, I wear the mask of product manager on a daily basis. I like to take care of a close-knit team crafting a software that works in a healthy and psychologically secure environment.

Avec un zeste de culture hacker et une dose de coach produit, je porte le masque de product manager au quotidien. J'aime m'occuper d'une équipe soudée qui conçoit un logiciel qui fonctionne dans un environnement sain et psychologiquement sûr.

With a zest culture hacker and a dose of product coach, I wear the mask of product manager on a daily basis. I like to take care of a close-knit team crafting a software that works in a healthy and psychologically secure environment. Avec un zeste... Show more

Sara Fennah

Sara Fennah

Sara has over 25 years’ experience, has been a Microsoft Certified Trainer (MCT) for over 15 years and is also a MCT Community Lead and Microsoft MVP (Most Valuable Professional) for Microsoft 365.

Sara has been working with Microsoft 365 since the preview in April 2011 and holds over 50 Microsoft Certifications. Sara’s company still use the same Microsoft 365 Tenant opened back in 2011.

As a trainer Sara’s professional aim is to help make technology more accessible by increasing knowledge and decreasing fear. In her own words “I love helping others advance their own skills and use of technology, whilst challenging myself to advance my own skills and expertise.”

Sara delivers training across Microsoft 365 from beginner to admin level, specialising in productivity, data security, and compliance. She is a recognised expert in Microsoft 365 Copilot, having authored multiple courses and supported organisations with adoption strategies and governance planning.

Sara has over 25 years’ experience, has been a Microsoft Certified Trainer (MCT) for over 15 years and is also a MCT Community Lead and Microsoft MVP (Most Valuable Professional) for Microsoft 365. Sara has been working with Microsoft 365 since th... Show more

Smita Nachan

Smita Nachan

As a M365 Architect, I leverage my 16+ years of experience and multiple certifications to design, implement, and maintain large-scale projects using SharePoint and Office 365. I am a Certified ScrumMaster (CSM), a Microsoft MVP in two categories (M365 and AI Platform).

My mission is to help clients achieve their business goals and optimize their digital transformation journey using the latest technologies and best practices. I am passionate about sharing my knowledge and expertise with the community, and I frequently speak at various events, such as SPS, Global Microsoft 365 Developer Bootcamp, and Global Power Platform Bootcamp. I am also an author, speaker, and organizer of several books, blogs, podcasts, and webinars on M365 topics.

As a M365 Architect, I leverage my 16+ years of experience and multiple certifications to design, implement, and maintain large-scale projects using SharePoint and Office 365. I am a Certified ScrumMaster (CSM), a Microsoft MVP in two categories (M36... Show more

Rob Sewell

Rob Sewell

Rob was a SQL Server DBA with a passion for PowerShell, Azure, Automation, and SQL (PaaS geddit?). Now he just helps people make things. He is a Data Platform MVP and an Azure MVP, a PowerShell Conference Europe organiser, and maintainer of many open-source projects. He has spoken at and volunteered at many Data and PowerShell events all over the world. He is a proud supporter of the Data and PowerShell communities.

He relishes sharing and learning and can be found doing both via Social Medias and his blog. He spends most of his time looking at a screen and loves to solve problems. He knows that looking at a screen so much is bad for him because his wife tells him so. Thus, he is often out riding his bike as his eyes are not good enough to play cricket any more.

He has a fabulous beard

Rob was a SQL Server DBA with a passion for PowerShell, Azure, Automation, and SQL (PaaS geddit?). Now he just helps people make things. He is a Data Platform MVP and an Azure MVP, a PowerShell Conference Europe organiser, and maintainer of many open... Show more

Tobias Fenster

Tobias Fenster

Tobias Fenster started as a developer in the 1990s. Holding different positions including Head of Technical Consulting, Head of Development and CTO for multiple Microsoft partners during his career, he is now a Managing Director at 4PS Germany and Chief Engineer at Hilti. He is also a Microsoft Regional Director, holds dual Microsoft MVP awards for Business Applications and Azure and is a Docker Captain.

He is blogging on tobiasfenster.io, where he writes about Business Applications, Docker and Windows Containers, but also tooling like Azure DevOps, Visual Studio Code and infrastructure automation. His other focus is Azure, mainly around container environments and SQL.

Tobias Fenster started as a developer in the 1990s. Holding different positions including Head of Technical Consulting, Head of Development and CTO for multiple Microsoft partners during his career, he is now a Managing Director at 4PS Germany and Ch... Show more

Paula García Esteban

Paula García Esteban

💫📊 Freelance: data visualization and AI training
🧑‍🏫🤖 IA/ML Instructor @ LinkedIn Learning
🎨🚀 #PBICoreVisuals Community Representative
🙆🏻‍♀️💡 Top LinkedIn Data Visualization Voice
🏅💻 Microsoft MVP Data Platform & AI Platform

I trust the power of data and persuasive communication.

💫📊 Freelance: data visualization and AI training 🧑‍🏫🤖 IA/ML Instructor @ LinkedIn Learning 🎨🚀 #PBICoreVisuals Community Representative 🙆🏻‍♀️💡 Top LinkedIn Data Visualization Voice 🏅💻 Microsoft MVP Data Platform & AI Platform I trus... Show more

Jean-Yves Klein

Jean-Yves Klein

Senior Agile Coach, Jean-Yves Klein has worn many hats: developer, project manager, program director, head of IT… This diverse background gives him a 360° view of agility — from hands-on delivery to executive strategy.

Certified in PMI, SAFe, and Disciplined Agile, he has coached teams across IT, mechanical engineering, electronics, marketing, and legal. His approach is always tailored to the team, the project, and the organization — no cookie-cutter solutions here.

A passionate educator, he has designed over 10 Serious Games, including several with LEGO, to bring Agile, SAFe, DevOps, and key roles like Product Owner and Scrum Master to life. With him, learning is hands-on, fun, and unforgettable.

Senior Agile Coach, Jean-Yves Klein has worn many hats: developer, project manager, program director, head of IT… This diverse background gives him a 360° view of agility — from hands-on delivery to executive strategy. Certified in PMI, SAFe, and ... Show more

Christian Decker

Christian Decker

Christian Decker has been inextricably linked with Microsoft and the optimal use of tools for more than 20 years. After 9 years at Microsoft and over 12 years of experience with the best Microsoft Gold Partners, he is very familiar with Office 365 and Microsoft in general.
Christian is double MVP: Security and Teams - which reflects perfectly his passion

Christian Decker has been inextricably linked with Microsoft and the optimal use of tools for more than 20 years. After 9 years at Microsoft and over 12 years of experience with the best Microsoft Gold Partners, he is very familiar with Office 365 an... Show more

Magnus Mårtensson

Magnus Mårtensson

Magnus Mårtensson is an entrepreneur, a Microsoft Most Valuable Professional (MVP) for Azure since the start of the cloud, and a Microsoft Regional Director (RD). He is a consultant, architect, product development lead, and he runs his own company Loftysoft. As an international speaker Magnus travels the world to teach, network, learn, and experience. His passions include connecting with audiences and organizing conferences such as CloudBurst and GlobalAzure. He is of course also into good food, wine, and great company. Topping it all is mind-sharing, so when you see him at a conference, come over and say hi!

Magnus Mårtensson is an entrepreneur, a Microsoft Most Valuable Professional (MVP) for Azure since the start of the cloud, and a Microsoft Regional Director (RD). He is a consultant, architect, product development lead, and he runs his own company Lo... Show more

Femke Cornelissen

Femke Cornelissen

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in Microsoft Teams and various on- and offline events.

Femke is also a Microsoft 365 blogger with only Dutch content. Her goal is to organize, speak and attend conferences to learn, connect and share knowledge with others.

Find out more at www.femkecornelissen.com

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in... Show more

Samuel Shaw

Samuel Shaw

Sam has been in the technology space professionally for a decade after dabbling as a developer while working in academia. His spare time is spent trying new things or in the gym fighting. Most recently the focus being Krav Maga and Kung Fu.

Sam has been in the technology space professionally for a decade after dabbling as a developer while working in academia. His spare time is spent trying new things or in the gym fighting. Most recently the focus being Krav Maga and Kung Fu. Show more

Patty O'Callaghan

Patty O'Callaghan

Patty is a Venezuelan living in Scotland. She has +20 years of experience in the tech industry and a background education in Computer Science and Artificial Intelligence. She is a Technical Director and Head of AI Architecture and Engineering Group at Charles River Laboratories.

Patty is a member of the Google Developer Advisory Board, an organiser at Google Developers Group Glasgow, serves as an Ambassador for Google's Women Techmakers, and is recognised as a Google Developer Expert (GDE) in Artificial Intelligence.

Patty is a Venezuelan living in Scotland. She has +20 years of experience in the tech industry and a background education in Computer Science and Artificial Intelligence. She is a Technical Director and Head of AI Architecture and Engineering Group a... Show more

Federico Porceddu

Federico Porceddu

Federico is a Microsoft MVP in the M365 category, a SharePoint and Microsoft 365 Technical Architect, and a Microsoft 365 certified professional. He works at Avanade Italy as a Modern Workplace Solution Architect, specializing in enterprise solutions with extensive experience in Microsoft and Open Source technologies.

He is also the host of Copilot Espresso Podcast, an Italian podcast about Copilot for Microsoft 365 and beyond.

A passionate blogger, coffee taster, and trekking lover, Federico serves as a Career Advisor for his team in the Modern Workplace area. Additionally, he is an active contributor to the Microsoft 365 Patterns and Practices (PnP) community.

Federico is a Microsoft MVP in the M365 category, a SharePoint and Microsoft 365 Technical Architect, and a Microsoft 365 certified professional. He works at Avanade Italy as a Modern Workplace Solution Architect, specializing in enterprise solutions... Show more

Antonio José Soto Rodriguez

Antonio José Soto Rodriguez

After more than 20 years managing information systems, mainly in Microsoft environments, with special focus on Business Intelligence systems and data management, I am now more focused on the management of teams and sales. Always looking for new challenges to help our customers optimize their investments in their data platform. Right now focused on Big data, Smart data and IA technologies in order to define new lines of business

After more than 20 years managing information systems, mainly in Microsoft environments, with special focus on Business Intelligence systems and data management, I am now more focused on the management of teams and sales. Always looking for new chall... Show more

Dmitry Romanoff

Dmitry Romanoff

Dmitry is an experienced, dedicated, and highly motivated DevOps Data Lead, Cloud Architect, and DBA. He has extensive experience in the design, development, implementation, and management of large, complex, high-performance, and mission-critical system/software/cloud-based solutions. Dmitry has been giving lectures at conferences and publishing articles and blogs.

Dmitry is an experienced, dedicated, and highly motivated DevOps Data Lead, Cloud Architect, and DBA. He has extensive experience in the design, development, implementation, and management of large, complex, high-performance, and mission-critical sys... Show more

Ixchel Ruiz

Ixchel Ruiz

Ixchel Ruiz has been developing software applications and tools since 2000. Her research interests include Java, dynamic languages, client-side technologies, and testing. As a member of the JCP Executive Committee, Java Champion, Oracle ACE Pro, Testcontainers Community Champion, CDF Ambassador, Hackergarten enthusiast, Open Source advocate, public speaker, and mentor, Ixchel is deeply committed to fostering inclusive and collaborative tech communities. She actively mentors aspiring developers and champions initiatives aimed at increasing diversity and accessibility in the technology sector.

Ixchel’s work is characterised by a relentless pursuit of innovation, a deep understanding of user needs, and an unwavering commitment to ethical technology development.

Ixchel Ruiz has been developing software applications and tools since 2000. Her research interests include Java, dynamic languages, client-side technologies, and testing. As a member of the JCP Executive Committee, Java Champion, Oracle ACE Pro, Test... Show more

Emiliano Montesdeoca

Emiliano Montesdeoca

Emiliano is a Uruguayan-Spanish software developer, Microsoft MVP in Developer Technologies, and passionate community advocate based in Tenerife. He’s also a proud dad, balancing family life with a deep commitment to tech and community.

As Team Lead at Intelequia Technologies, he drives the design of scalable cloud solutions using Microsoft technologies, blending strategic vision with hands-on execution. With years of experience tackling complex challenges, Emiliano brings strong expertise in cloud architecture and team leadership.

A frequent speaker and blogger, he shares practical insights to support and mentor the global developer community—giving back to the ecosystem that shaped his own journey.

Emiliano is a Uruguayan-Spanish software developer, Microsoft MVP in Developer Technologies, and passionate community advocate based in Tenerife. He’s also a proud dad, balancing family life with a deep commitment to tech and community. As Team Le... 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.