Most Active Speakers 2023

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

  • 758 speakers
  • Auto-generated
Sergey Chubarov

Sergey Chubarov

Sergey Chubarov is a Security and Cloud Expert with over 15 years of extensive experience in Microsoft technologies. As an instructor, Sergey is dedicated to guiding companies through the complexities of securely adopting cloud solutions. His consulting experience spans both the red and blue sides.

Certifications and recognitions include Microsoft MVP: Cloud Security, OSCP, OSEP, MCT, MCT Community Lead, EC Council CPENT & LPT, CREST CPSA & CRT, and many more.

Frequent Speaker at Prestigious Conferences: Black Hat, Hacker Halted, DEF CON, Wild West Hackin' Fest, Workplace Ninja Summit, Midwest Management Summit, and many others.

Prefers live demos and cyberattacks simulations.

Sergey Chubarov is a Security and Cloud Expert with over 15 years of extensive experience in Microsoft technologies. As an instructor, Sergey is dedicated to guiding companies through the complexities of securely adopting cloud solutions. His consult... Show more

Emilie Rønning

Emilie Rønning

Emilie Rønning, a data girl in a Fabric world.

She is a managing data engineer, based in Oslo, Norway. In addition to creating well-functioning insights and analysis data platforms, Emilie loves creating and implementing structure and solutions automating manual processes for her clients.

When not geeking out, she enjoys a long hike and a night or two in her hammock.

Emilie Rønning, a data girl in a Fabric world. She is a managing data engineer, based in Oslo, Norway. In addition to creating well-functioning insights and analysis data platforms, Emilie loves creating and implementing structure and solutions a... Show more

Matthias Geisler

Matthias Geisler

True believer in (Kotlin) Multiplatform and working with it since 2019. Builds solutions for Android.
Organizer of KUG Berlin, GDG Android Berlin, XTC Berlin and more.

True believer in (Kotlin) Multiplatform and working with it since 2019. Builds solutions for Android. Organizer of KUG Berlin, GDG Android Berlin, XTC Berlin and more. 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

Barkha Herman

Barkha Herman

Barkha Herman is a technologist, experienced developer advocate, and the founder of WiTVoices and South Florida Women in Tech. With a deep understanding of technology and a love for fostering inclusive and diverse tech communities, Barkha is dedicated to empowering individuals and organizations to thrive in the rapidly evolving digital landscape.

In addition to her work at WiTVoices, she takes great pride in leading South Florida Women in Tech. These organizations are committed to empowering women in technology and creating a supportive environment for their professional growth. Through mentorship programs, networking events, and educational initiatives, they strive to break barriers and foster inclusivity in the tech industry.

Barkha Herman is a technologist, experienced developer advocate, and the founder of WiTVoices and South Florida Women in Tech. With a deep understanding of technology and a love for fostering inclusive and diverse tech communities, Barkha is dedicate... Show more

Madona Wambua

Madona Wambua

With over a decade of impactful leadership in software engineering, Madona S. Wambua is a keynote speaker, engineer, and author whose work spans fintech and digital platforms used by millions of users worldwide. Her expertise includes software development, technology strategy, and innovation, complemented by her role as a distinguished Google Developer Expert for Android.

Currently, Madona serves as an adjunct professor at CUNY, where she teaches mobile development and cybersecurity, helping to prepare the next generation of engineers. As a driving force in the tech community, she is a strong advocate for diversity and inclusion, serving as a Women Techmakers Ambassador and Co-Chair at AnitaB

Beyond her work in industry and academia, she plays a key role in shaping AI education as a member of the Advisory Committee for the Strategic AI Certificate Program at Mercy University, New York.

An accomplished author and knowledge-sharer, Madona’s influence reaches across multiple disciplines, leaving a lasting mark on the tech landscape. Her remarkable contributions have established her as a respected leader and a powerful voice in advancing innovation and inclusion within the global developer community.

With over a decade of impactful leadership in software engineering, Madona S. Wambua is a keynote speaker, engineer, and author whose work spans fintech and digital platforms used by millions of users worldwide. Her expertise includes software develo... Show more

Mitchel Sellers

Mitchel Sellers

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 focuses on proper architecture standards, performance, stability, security, and overall cost-effectiveness of delivered solutions. This message and his abilities resonate in the technical war room as well as the executive board room.

Mitchel is a prolific public speaker, presenting more than 400 sessions at user groups and conferences globally, such as DevUp, SDN, and Code PaLOUsa. Sellers has been the author of multiple books and a regular blogger on technology topics.

When Mitchel is not working in technology, you will find him flying his airplane, teaching others how to fly, or spending time with his family He is also actively involved in the Open Source Community working diligently to further the movement. Find out more about Sellers at his website http://www.mitchelsellers.com.

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

Usama Wahab Khan

Usama Wahab Khan

I am Microsoft MVP and MCT and community leader from UAE. I working as CTO evolution Technologies, Azure community Hero

I am Microsoft MVP and MCT and community leader from UAE. I working as CTO evolution Technologies, Azure community Hero Show more

Jeff Iannucci

Jeff Iannucci

Jeff Iannucci is a Principal Consultant with Straight Path Solutions. With over 20 years of experience with SQL Server development and administration, he enjoys sharing what he's learned by speaking, blogging, and creating video content. He has been a speaker at PASS Data Community Summit, a content author for Pluralsight, and is author of the book "Learn SQL in a Month of Lunches". He is also the primary resource for Straight Path's community tools like sp_CheckSecurity, sp_CheckBackup, and sp_CheckAG.

Jeff Iannucci is a Principal Consultant with Straight Path Solutions. With over 20 years of experience with SQL Server development and administration, he enjoys sharing what he's learned by speaking, blogging, and creating video content. He has been ... 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

Ioana Bouariu

Ioana Bouariu

AI, BI and everything data. Fabric admin. Automation enthusiast. Co-pilot in a crew of 5.

AI, BI and everything data. Fabric admin. Automation enthusiast. Co-pilot in a crew of 5. Show more

Linda Torrång

Linda Torrång

With a diverse background in journalism and retail, Linda brings both business insight and attention to storytelling to the table as a data warehouse developer. Coupled with her passion for learning new tech and trying new things.

With a diverse background in journalism and retail, Linda brings both business insight and attention to storytelling to the table as a data warehouse developer. Coupled with her passion for learning new tech and trying new things. Show more

Mateusz Wojtczak

Mateusz Wojtczak

Head of Mobile @ LeanCode with almost 10 years of experience in mobile development.
He has worked across Xamarin, React Native, and native platforms before fully committing to Flutter, now his sole focus for mobile apps at LeanCode.
He led the Flutter at Scale in the Credit Agricole Bank Polska project and helps teams deliver high-quality apps using Patrol by LeanCode for robust testing.
Also, the Co-founder of Flutter Warsaw, one of the largest Flutter meetups in Europe.

Head of Mobile @ LeanCode with almost 10 years of experience in mobile development. He has worked across Xamarin, React Native, and native platforms before fully committing to Flutter, now his sole focus for mobile apps at LeanCode. He led the Fl... 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

Mikey Bronowski

Mikey Bronowski

What do I do? I select, I select stars!

Data enthusiast with a mathematics background. Working with SQL Server for over 15 years. Microsoft Data Platform MVP and Microsoft Certified Trainer with a couple of certificates sharing knowledge. Blogger at (bronowski.it).

Not long ago Poland Data Community member, now proud UK Data Platform active member and SotonDataCloud.org leader.

When not working or teaching, learns new things or attends various data/technical conferences and meetups.

Italian Calcio fan and traveller, amateur photographer catching anything that moves.

What do I do? I select, I select stars! Data enthusiast with a mathematics background. Working with SQL Server for over 15 years. Microsoft Data Platform MVP and Microsoft Certified Trainer with a couple of certificates sharing knowledge. Blogger ... Show more

Toni Pohl

Toni Pohl

I work as consultant and I am specialized in designing solutions for Microsoft 365, Microsoft Azure and Azure AI Services. I'm a conference speaker, blogger, and Microsoft MVP.

I work as consultant and I am specialized in designing solutions for Microsoft 365, Microsoft Azure and Azure AI Services. I'm a conference speaker, blogger, and Microsoft MVP. Show more

Alyssa Nicoll

Alyssa Nicoll

Alyssa is an Senior Developer Advocate for Progress and a Google Developer Expert for Angular. She has spoken at over 50 conferences locally and internationally. She is the host of the Angular Air podcast and emcees ng-conf as well as Monorepo World. She enjoys gaming, scuba diving, and has a little one that fondly goes by "Mr. Milks".

Alyssa is an Senior Developer Advocate for Progress and a Google Developer Expert for Angular. She has spoken at over 50 conferences locally and internationally. She is the host of the Angular Air podcast and emcees ng-conf as well as Monorepo World.... Show more

Gaston Cruz

Gaston Cruz

Microsoft Most Valuable Professional (MVP) in Data Platform for the last 9 years and MVP in AI.

Over 20 years of experience in business and technology working with organizations at various stages of digital transformations. Over the years, worked with several industry sectors including Retail, Banking, Minery, Oil & Gas, and Media/Entertainment. Also led several products and applications that have been in the cusp of data, strategy, technology, and business transformation. Passion for data , emerging technologies and new offerings enables clients to make fact-based decisions and drive actions in the market together.​

Provided recommendations and guidance on revamping Analytics and Reporting enterprise architecture for different companies in helping drive a Customer Data Exchange working closely with the C-Suite to help them design their New Data Services Organization with Data Products. Stood up new capabilities required to effectively operate and move toward Data Monetization using advanced Data consolidation and Data Sharing capabilities focusing on Privacy/Compliance and Data Governance

YouTube channel Power Mates: https://www.youtube.com/@PowerMatesMS

Microsoft Most Valuable Professional (MVP) in Data Platform for the last 9 years and MVP in AI. Over 20 years of experience in business and technology working with organizations at various stages of digital transformations. Over the years, worked ... Show more

Markus Kett

Markus Kett

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 projects EclipseStore, Eclipse Serializer, and Eclipse Data Grid, powering Cyrock.AI as the first AI Memory based on a serverless microservices architecture. He is also the editor-in-chief for the free JAVAPRO magazine and the founder and co-organizer of the Java community conference series JCON. He is an independent editor for several magazines, and loves speaking at developer conferences and user groups around the world.

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

Fabien Billiet Vandeschrick

Fabien Billiet Vandeschrick

Mon hypothèse de travail, c'est que l'agilité n'est pas une finalité mais un levier. Et seulement quand il sert.
J'ai grandi avec l'histoire, les jeux et le sport.
Je crois aux approches produit et business qui ne sont que trop sous-estimées.

Mon hypothèse de travail, c'est que l'agilité n'est pas une finalité mais un levier. Et seulement quand il sert. J'ai grandi avec l'histoire, les jeux et le sport. Je crois aux approches produit et business qui ne sont que trop sous-estimées. Show more

Patrick Guimonet

Patrick Guimonet

Patrick has 20+ years of experience as an Enterprise Solutions Architect. He has a successful track record of technical expertise for Office 365, SharePoint, SQL Server, and Oracle RDBMS. He is a former Microsoft employee in France. He worked 14 years to develop his own company Abalon, created in 2011. Abalon is dedicated to supporting customers on getting real business benefits with Microsoft collaborative platform.
After selling it, he created a new one called AURA specialized on Microsoft licensing optimization.

He has been speaker and organizer of 100+ Microsoft 365 and Power Platform events like SharePoint Saturdays Paris, Monaco, Dubai, Netherlands, Barcelona, Helsinki, ..., European SharePoint Conference, European Collaboration Summit, MS TechDays Paris, Modern Workplace Conference Paris and Power Platform French Summit...
He has spoken on the 5 continents, on more than 50 countries. More details here: http://bit.ly/eventsPGU2

He leads aMP Community. More details here: http://bit.ly/aMSPrez

Patrick has 20+ years of experience as an Enterprise Solutions Architect. He has a successful track record of technical expertise for Office 365, SharePoint, SQL Server, and Oracle RDBMS. He is a former Microsoft employee in France. He worked 14 year... Show more

Sylvia Dieckmann

Sylvia Dieckmann

Sylvia is a Google Developer Expert for Flutter/Dart. Her preferred professional role includes some IT management but also enough hands-on development work to keep her dev skills sharp. Her main interest lies in exploring new technologies in the space of mobile apps and web technologies. She is currently playing with Flutter, Firebase, and some ML for Android but might change focus as new technologies pop up. 
Sylvia divides her time between South Africa and Germany. She is a Women Techmaker (WTM) Ambassador and an active member of the GDG Cape Town chapter. She is a frequent speaker at GDG events and aims to support the developer community through mentoring and events.

Sylvia is a Google Developer Expert for Flutter/Dart. Her preferred professional role includes some IT management but also enough hands-on development work to keep her dev skills sharp. Her main interest lies in exploring new technologies in the spac... Show more

Michael Roth

Michael Roth

Michael Roth has been working as a consultant since 2011 and found his way into the IT around 2015. He focuses on Power Platform Governance, Administration, Security as well as organizational implementation. Coming from an M365 background, he has a holistic view of the entire platform.

Michael Roth has been working as a consultant since 2011 and found his way into the IT around 2015. He focuses on Power Platform Governance, Administration, Security as well as organizational implementation. Coming from an M365 background, he has a h... Show more

Odeta Jankaitienė

Odeta Jankaitienė

All my career, I've been working in the data field. Initially, I started my data journey with Excel and later transitioned to Tableau and, after a few years, to Power BI, which I've used almost since its creation.
But that's not all — I've also been sharing my data love with others, teaching them how to use these awesome tools during trainings and conferences. While doing this, I was accepted into the Microsoft MVP program (year 2024).
I'm super passionate about data, and nothing makes me happier than passing on my knowledge to kindred spirits so that they can rock the data world, too!

All my career, I've been working in the data field. Initially, I started my data journey with Excel and later transitioned to Tableau and, after a few years, to Power BI, which I've used almost since its creation. But that's not all — I've also bee... Show more

Tiago Costa

Tiago Costa

Tiago Costa is a Senior AI & Cloud Architect and Advisor, focusing on AI & Microsoft Azure, a Public Speaker, Trainer, and Author. For the past +20 years has been architecting and developing solutions using Microsoft technologies. In recent years, Tiago has been helping companies migrate and build AI & cloud-native workloads on Microsoft Azure. Tiago has been working at the Senior Architect level, but he always likes to take on some hands-on tasks on the Azure Administration and Development side. You can also find him in the classroom or online teaching AI & Microsoft Azure. All this real-world experience enables him to deliver outstanding training in AI & Microsoft Azure.

Tiago has several Microsoft Certifications and awards:
- Microsoft Azure MVP (2016 – …)
- MCT – Microsoft Certified Trainer (2006 – …)
- MCT Community Lead (2013 – …)

He loves diving into new technologies and sharing his experience at conferences and training classes. What excites him about his work is helping others explore new frontiers in technology and becoming better professionals. His free time is spent with his family in the sunny surroundings of Lisbon, Portugal, and building cool geek projects.

Tiago Costa is a Senior AI & Cloud Architect and Advisor, focusing on AI & Microsoft Azure, a Public Speaker, Trainer, and Author. For the past +20 years has been architecting and developing solutions using Microsoft technologies. In recent years, Ti... Show more

Ruben Pertusa Lopez

Ruben Pertusa Lopez

Ruben is a distinguished leader in the world of Data Analytics and AI, currently holding the position of Global Lead of Data Analytics and AI at Avolta HQ (DUFRY,Autogrill, Hudson & HMS Host) in Switzerland. As the Global Data Lead Architect, he plays a pivotal role in shaping data strategies for this global organization. With a strong commitment to knowledge sharing, Ruben is an active member of the PASS Spanish Group and has taken the initiative to found SQLSaturday events in both Madrid and Barcelona, as well as Power BI Days Spain.
Ruben's expertise is widely recognized, as evidenced by his Microsoft Certified Professional (MCP) and Microsoft Certified Solutions Associate (MCSA) credentials in SQL Server. His remarkable contributions to the field have earned him the prestigious Microsoft MVP Data Platform award for 10 years in a row.
Ruben regularly takes the stage at SQLSaturday and PowerPlatform events, captivating audiences with his insights and expertise. Events such as the SQL Server 2008 R2 and 2014 Spanish launch event, Power BI Days, Power BI Virtual Conf, PASS BA Chicago, TugaIT, .NetCoreConf, European SharePoint Summit, TechNet Webcasts, Microsoft Partner Program, and SolidQ Summit.

Ruben is a distinguished leader in the world of Data Analytics and AI, currently holding the position of Global Lead of Data Analytics and AI at Avolta HQ (DUFRY,Autogrill, Hudson & HMS Host) in Switzerland. As the Global Data Lead Architect, he play... Show more

Lorenzo Vercellati

Lorenzo Vercellati

I have been working on databases for 20 years and for over 10 years on business intelligence projects.
I'm a speaker for SQL Saturday and the Power Platform world Tour.
I am a teacher at DIAD and one of the administrators of Power BI User Group Italy

I have been working on databases for 20 years and for over 10 years on business intelligence projects. I'm a speaker for SQL Saturday and the Power Platform world Tour. I am a teacher at DIAD and one of the administrators of Power BI User Group Ita... Show more

Liji Thomas

Liji Thomas

Liji Thomas, a Microsoft MVP in AI, is a seasoned technologist with over 15 years of experience in creating transformative digital experiences. As Gen AI Manager at H&R Block, she drives innovation by leveraging generative AI to enhance customer experiences and deliver business value. Her expertise spans AI, machine learning, natural language processing, and conversational AI.

Liji is passionate about harnessing AI's transformative potential to revolutionize business and human interaction with technology. A thought leader in the field, she actively shares her insights through speaking engagements, publications, and community involvement. Committed to diversity and inclusion, she mentors aspiring technologists and advocates for the next generation of AI leaders.

Liji Thomas, a Microsoft MVP in AI, is a seasoned technologist with over 15 years of experience in creating transformative digital experiences. As Gen AI Manager at H&R Block, she drives innovation by leveraging generative AI to enhance customer expe... Show more

Diana Montalion

Diana Montalion

Diana and her teammates build modern software systems for diverse clients. She has 20+ years experience engineering and architecting software systems for organizations including Stanford, The Gates Foundation, Memorial Sloan Kettering and Teach For All. She has also served as Principal Systems Architect for The Economist and The Wikimedia Foundation.

She wrote the O’Reilly book, Learning Systems Thinking: Essential Nonlinear Skills & Practices for Software Professionals. Her company, Mentrix, publishes courses and learning materials for aspiring nonlinear thinkers.

Diana lives in the Hudson Valley (New York, USA) with three dogs, one cat and nine chickens.

Diana and her teammates build modern software systems for diverse clients. She has 20+ years experience engineering and architecting software systems for organizations including Stanford, The Gates Foundation, Memorial Sloan Kettering and Teach For A... 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

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.