Most Active Speakers 2023

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

  • 756 speakers
  • Auto-generated
Pawel Potasinski

Pawel Potasinski

CTO at Infinite Services, a company specializing in developing state-of-the-art data platforms for large enterprises. In his professional career Pawel has always been associated with data engineering and analytics (SQL, BI, Big Data). Founder of the Polish SQL Server Users Group (PLSSUG), today known as Data Community Poland. Regular speaker at conferences, community events and user groups. Former Microsoft Most Valuable Professional (MVP).

CTO at Infinite Services, a company specializing in developing state-of-the-art data platforms for large enterprises. In his professional career Pawel has always been associated with data engineering and analytics (SQL, BI, Big Data). Founder of the ... Show more

Hannes Lagler-Gruener

Hannes Lagler-Gruener

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years.
Hannes is focusing on cloud architecture and security.
Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his carrier at one of the biggest Austrian banks and changed to Microsoft Austria after a few years.
Currently, Hannes is working at ACP IT Solutions GMBH as Lead-Cloud Solutions Architect.

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years. Hannes is focusing on cloud architecture and security. Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his... Show more

David Whitney

David Whitney

David is the Director of Architecture for NewDay, and the founder of Electric Head Software. Focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations.

He speaks about software design, culture, and ethics in technology - rounded out by an assortment of talks about software that probably doesn't need to exist but makes the world a little more fun. David has previously served as the chief coding technical architect for JustGiving and helped market-leading organisations including JUST-EAT, Trainline and Vodafone improve their technical capabilities.

David is a Microsoft MVP, has been part of the OpenUK Honours list for open-source advocacy, and is a twice bestselling author of children's books about programming.

You can find his open-source projects on NuGet, npm and GitHub, follow him on Twitter @david_whitney, or check out his technical blog at http://www.davidwhitney.co.uk/Blog.

http://www.electricheadsoftware.com
http://www.davidwhitney.co.uk

David is the Director of Architecture for NewDay, and the founder of Electric Head Software. Focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations. He speaks about softwar... Show more

Jeremy Meiss

Jeremy Meiss

Jeremy is an international speaker and is currently the Director of DevRel at OneStream Software, previously at CircleCI, Solace, Auth0, and XDA. With almost 30 years in Tech, covering just about every functional area, including support, system and database administration, application and web development, project management, program management, and systems analysis, Jeremy is active in the DevRel and DevOps communities, a co-creator of DevOpsPartyGames.com, and organizer for DevOpsDays Kansas City. A lover of all things coffee, community, open source, and tech, he’s also house-broken, and (generally) plays well with others.

Jeremy is an international speaker and is currently the Director of DevRel at OneStream Software, previously at CircleCI, Solace, Auth0, and XDA. With almost 30 years in Tech, covering just about every functional area, including support, system and d... Show more

Vadym Kazulkin

Vadym Kazulkin

Vadym Kazulkin is AWS Serverless Hero and Head of Development at ip.labs based in Bonn. Vadym has been involved with the Java ecosystem for over 25 years. His focus and interests currently include the design and implementation of highly scalable and available applications in AWS Cloud with the special passion for Serverless, Generative AI and optimization of Java applications (also using SpringBoot, Micronaut and Quarkus frameworks) on AWS Lambda. Vadym is also the co-organizer of the Java User Group Bonn meetup, a frequent speaker at various meetups and conferences and a regular author of the articles in the different published magazines and on his online blog.

Vadym Kazulkin is AWS Serverless Hero and Head of Development at ip.labs based in Bonn. Vadym has been involved with the Java ecosystem for over 25 years. His focus and interests currently include the design and implementation of highly scalable and ... 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

Juan Carlos González Martín

Juan Carlos González Martín

Juan Carlos is a Telecommunications Engineer with more than 23 years of experience in diverse Microsoft products and technologies with a strong background in the SharePoint platform; although he currently works as Microsoft 365 SME & Delivery Manager skilled in Microsoft 365, Microsoft 365 Copilot, Microsoft Teams, the Power Platform and SharePoint platforms. Juan Carlos is a Microsoft 365 & Microsoft 365 Copilot MVP that received his first MVP award in 2008. He is also co-editor and co-director of the free Spanish digital magazine about Microsoft Products and Technologies: CompartiMOSS (www.compartimoss.com). To date, Juan Carlos has co-authored 21 books and several articles about Microsoft 365 &SharePoint platforms in Spanish and English.

Juan Carlos is a Telecommunications Engineer with more than 23 years of experience in diverse Microsoft products and technologies with a strong background in the SharePoint platform; although he currently works as Microsoft 365 SME & Delivery Manage... Show more

Sander Molenkamp

Sander Molenkamp

Sander Molenkamp is a principal cloud architect and Microsoft Azure MVP with over 25 years of professional experience. He works for Info Support (http://www.infosupport.com) designing and developing customer solutions using cloud native architectures.
Sander is also an accomplished speaker, having shared his insights and expertise at numerous international conferences. He is passionate about technology and freely shares his knowledge through the dotnetFlix YouTube channel (www.youtube.com/dotnetflix).
Furthermore, Sander actively contributes to the organization of multiple free community events, including the Dutch Azure Meetup, Azure Fest, and Bitbash.
In his free time, Sander enjoys traveling, is (still) learning to play the ukelele, and tinkers with technology and LEGO. He has also defeated the sword master of Mêlée Island™️.

Sander Molenkamp is a principal cloud architect and Microsoft Azure MVP with over 25 years of professional experience. He works for Info Support (http://www.infosupport.com) designing and developing customer solutions using cloud native architectures... Show more

Arindam Mitra

Arindam Mitra

I am a Microsoft MVP (Most Valuable Professional) in Developer Technologies | Azure Cloud Solutions & DevOps Architect | Technical Blogger & Speaker Focused on Cloud Adoption, Architecture, Automation, Build and Run in Azure.

I am a Microsoft MVP (Most Valuable Professional) in Developer Technologies | Azure Cloud Solutions & DevOps Architect | Technical Blogger & Speaker Focused on Cloud Adoption, Architecture, Automation, Build and Run in Azure. Show more

Viktor Gamov

Viktor Gamov

Viktor Gamov is a Principal Developer Advocate at Confluent, founded by the original creators of Apache Kafka®. With a rich background in implementing and advocating for distributed systems and cloud-native architectures, Viktor excels in open-source technologies. He is passionate about assisting architects, developers, and operators in crafting systems that are not only low in latency and scalable but also highly available.
As a Java Champion and an esteemed speaker, Viktor is known for his insightful presentations at top industry events like JavaOne, Devoxx, Kafka Summit, and QCon. His expertise spans distributed systems, real-time data streaming, JVM, and DevOps.
Viktor has co-authored "Enterprise Web Development" from O'Reilly and "Apache Kafka® in Action" from Manning. 
Follow Viktor on X—@gamussa to stay updated with his latest thoughts on technology, his gym and food adventures, and insights into open-source and developer advocacy.

Viktor Gamov is a Principal Developer Advocate at Confluent, founded by the original creators of Apache Kafka®. With a rich background in implementing and advocating for distributed systems and cloud-native architectures, Viktor excels in open-source... Show more

Bob Crowley

Bob Crowley

Bob Crowley is a Software Engineer near Portland Maine where he builds solutions in the .NET ecosystem. He has been writing bugs for over 20 years. He is on the organization committee for New Hampshire's Granite State Code Camp where he builds and operates a Capture the Flag competition for attendees. He is also creator of Recover-Disc, a platform for helping those who throw discs at trees get their lost discs back.

In his free time he likes to make the most of both weeks of Maine's summer either fishing out on the ocean or throwing discs at trees.

Find Bob on LinkedIn as contrivedexample

Bob Crowley is a Software Engineer near Portland Maine where he builds solutions in the .NET ecosystem. He has been writing bugs for over 20 years. He is on the organization committee for New Hampshire's Granite State Code Camp where he builds and op... 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

Michael Plettner

Michael Plettner

With more than 2 decades of customer experience, a long history in Microsoft products, Michael is a Cloud Architect who enjoys sharing his experience with the community and help the community grow.
During the last years, Michael was working with customers in Microsoft Teams topics, Microsoft 365 implementations overall and since 2022 he's also working with his customers in different Microsoft Viva projects.
Since more than seven years Michael has its own company, working with the focus on Microsoft topics, Change-Management and Project-Management. He's also a Microsoft MVP for Microsoft 365 Apps and Services since 2021.

With more than 2 decades of customer experience, a long history in Microsoft products, Michael is a Cloud Architect who enjoys sharing his experience with the community and help the community grow. During the last years, Michael was working with cus... Show more

Johan Ludvig Brattås

Johan Ludvig Brattås

Johan Ludvig Brattås is a director at Deloitte, and a dedicated community guy. He has worked with MS SQL server since late 1999, mostly with BI in one form or another. Since 2015, most of his work has been in the cloud working on data platform services such as Snowflake, Databricks and Synapse.

Combining his passion for MS SQL Server with his passion for sharing knowledge, he started speaking at various events in the SQL Community. This is also a way to give back to the community for all the things he has learned over the years. When not working, Johan Ludvig either spends his time with his kids, playing with new technology or teaching coeliacs how to bake glutenfree food.

Johan Ludvig Brattås is a director at Deloitte, and a dedicated community guy. He has worked with MS SQL server since late 1999, mostly with BI in one form or another. Since 2015, most of his work has been in the cloud working on data platform servic... 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

Mats Necker

Mats Necker

I like lots of stuff 👉 Power Platform 💘 Dynamics 365 🚀 Azure 🧙‍♂️

Microsoft MVP ✍ blogs at https://nckr.de

I worked for over 10 years with Microsoft Biz Apps as a solution architect / developer, starting with Business Central, nowadays loving the Power Platform & Azure

Building repeatable software has always been my passion and I'm continuing to talk about the best ways to do that 🙂

I like lots of stuff 👉 Power Platform 💘 Dynamics 365 🚀 Azure 🧙‍♂️ Microsoft MVP ✍ blogs at https://nckr.de I worked for over 10 years with Microsoft Biz Apps as a solution architect / developer, starting with Business Central, nowadays lovi... 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

Jimmy Bogard

Jimmy Bogard

Jimmy is the creator and maintainer of the popular OSS libraries AutoMapper and MediatR, and the originator of Vertical Slice Architecture. Jimmy is an independent software consultant based in Austin, TX. Jimmy has received the "Microsoft Most Valuable Professional" (MVP) award every year since 2009.

Jimmy is the creator and maintainer of the popular OSS libraries AutoMapper and MediatR, and the originator of Vertical Slice Architecture. Jimmy is an independent software consultant based in Austin, TX. Jimmy has received the "Microsoft Most Valuab... Show more

Josh Ether

Josh Ether

For the past 15 years, I have been an integral part of many successful organizations due to my experience and dedication. My coaching and consulting has allowed clients to achieve excellence as well as exceed their goals. It has been a privilege to be associated with such great achievements.

My Human Centered based methods have been proven to be successful, having been applied in a variety of projects with resounding results. My approach is comprehensive, taking into consideration all contributing factors to obtain the desired outcomes for clients that provide real value.

I'm passionate about empowering individuals and systems to identify and tackle the obstacles they face on their journey to success. Building trust within their systems through means of inspection, experimentation, and adaption we revise collaboration, & communication. I'm committed to helping my clients achieve long-term results. My ultimate goal is to support them in C.E.C. so that they can make lasting progress in life.

Collaboration is critical for the success of any solution. Working with a diverse group of people helps produce more effective results, and that's why I always strive to create an atmosphere where such collaboration can take place. By leveraging the skillsets of different individuals, we can develop high-quality solutions in a timely manner.

Experimentation is an invaluable tool in finding suitable solutions. To approach a problem in an effective manner, it's important to look beyond the traditional methods and explore something new. This might include using different techniques or tools to test out potential ideas and uncover the best solution. Experimentation gives us a chance to discover and try something that could potentially be groundbreaking, so it shouldn't be overlooked when dealing with complex problems.

Trust is essential for any team or organization to be successful. This confidence is established through effective communication and how information is shared. It's important to understand the power of these interactions, as they can create a feeling of reliability that allows everyone in the group to collaborate confidently.

The challenge organization’s face today is how to sustainably provide for the needs of growth while simultaneously protecting what has been built. A balanced approach is needed, one that combines sustainability with modern innovations. We must build a foundation for future prosperity that takes into account the needs of the organization, individual and the consumer.

For the past 15 years, I have been an integral part of many successful organizations due to my experience and dedication. My coaching and consulting has allowed clients to achieve excellence as well as exceed their goals. It has been a privilege to b... Show more

Todd Gardner

Todd Gardner

Todd Gardner is a software entrepreneur and developer who has built multiple profitable products. He pushes for simple tools, maintainable software, and balancing complexity with risk. He is the cofounder of TrackJS and Request Metrics, where he helps thousands of developers build faster and more reliable websites. He also produces the PubConf software comedy show.

Todd Gardner is a software entrepreneur and developer who has built multiple profitable products. He pushes for simple tools, maintainable software, and balancing complexity with risk. He is the cofounder of TrackJS and Request Metrics, where he help... Show more

Rizel Scarlett

Rizel Scarlett

Rizel Scarlett is a Staff Developer Advocate at Block. With a diverse background spanning GitHub, startups, and non-profit organizations, Rizel has cultivated a passion for utilizing emerging technologies to champion equity within the tech industry. She moonlights as an Advisor at G{Code} House, an organization aimed at teaching women of color and non-binary people of color to code. Rizel believes in leveraging vulnerability, honesty, and kindness as means to educate early-career developers.Rizel Scarlett is a Staff Developer Advocate at Block. With a diverse background spanning GitHub, startups, and non-profit organizations, Rizel has cultivated a passion for utilizing emerging technologies to champion equity within the tech industry. She moonlights as an Advisor at G{Code} House, an organization aimed at teaching women of color and non-binary people of color to code. Rizel believes in leveraging vulnerability, honesty, and kindness as means to educate early-career developers.

Rizel Scarlett is a Staff Developer Advocate at Block. With a diverse background spanning GitHub, startups, and non-profit organizations, Rizel has cultivated a passion for utilizing emerging technologies to champion equity within the tech industry. ... Show more

James Reeves

James Reeves

Data enthusiast on a mission to make cost effective data platforms accessible to all while navigating the whims of an ADHD-powered mind – it's a bit like juggling flaming torches while riding a unicycle, but he makes it work!

Data enthusiast on a mission to make cost effective data platforms accessible to all while navigating the whims of an ADHD-powered mind – it's a bit like juggling flaming torches while riding a unicycle, but he makes it work! Show more

Rob Richardson

Rob Richardson

Rob Richardson is a software craftsman building web properties in ASP.NET and Node, React and Vue. He’s a Microsoft MVP, published author, frequent speaker at conferences, user groups, and community events, and a diligent teacher and student of high quality software development. You can find this and other talks on https://robrich.org/presentations and follow him on Mastodon at @robrich@hachyderm.io.

Rob Richardson is a software craftsman building web properties in ASP.NET and Node, React and Vue. He’s a Microsoft MVP, published author, frequent speaker at conferences, user groups, and community events, and a diligent teacher and student of high ... Show more

Olivier Van Steenlandt

Olivier Van Steenlandt

Olivier Van Steenlandt is a Business Intelligence Professional who spent most of his early career assisting retail companies to get more value of their data using the Microsoft BI Stack (SSIS, SSAS, SSRS, Power BI).

As his first experience in the field (in Business Intelligence), Olivier worked as a Big Data Analyst using tools such as Hadoop and Spark.

In 2015 the focus changed to traditional data warehousing & reporting using SSIS, SSRS & MicroStrategy. A bit later, around June 2019, the opportunity arose to fill the position of BI Teamlead. In this function he was able to set up a hybrid BI Team (team members in Belgium and Belarus).

Early 2020, Olivier joined the dataMinds crew as a core member, assisting to organise several events.

Around April 2021, Olivier started a new position as BI Teamlead in another Retail Company to support business growth. Besides the challenge to help the BI Team grow and deliver projects on time, he started to use SSAS & Power BI.

In April 2025, Olivier stepped away from internal positions and became an independent consultant.

When Olivier is not working there is a high chance that you find him on a football field, studying (BI Related), playing music (Saxophone / Piano) or cooking.

Olivier Van Steenlandt is a Business Intelligence Professional who spent most of his early career assisting retail companies to get more value of their data using the Microsoft BI Stack (SSIS, SSAS, SSRS, Power BI). As his first experience in the ... Show more

Poornima Nayar

Poornima Nayar

Poornima is a .Net developer with over 10 years of experience in .Net. She is passionate about learning new technologies and keeping herself up-to-date with the latest developments in technology. Outside her work, Poornima enjoys music and is undergoing training in Indian Classical music. Based in Langley, UK she mothers a little girl and spends her spare time reading, cooking and watching movies.

Poornima is a .Net developer with over 10 years of experience in .Net. She is passionate about learning new technologies and keeping herself up-to-date with the latest developments in technology. Outside her work, Poornima enjoys music and is undergo... 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

Clément Serafin

Clément Serafin

I am Clément SERAFIN, architect and MVP on Microsoft 365.
Specialized in tenant 365 migrations during merge & acquisitions, I currently advise companies on several areas of Microsoft 365:
– Entra ID (Security, IAM)
– Teams (Call center, Teams Premium, Mesh)
– Exchange Online / Hybrid (Migration, Security)
– Copilot 365
– Defender for Office 365
– PowerShell advanced automation (Graph, Xaml Gui)

I am Clément SERAFIN, architect and MVP on Microsoft 365. Specialized in tenant 365 migrations during merge & acquisitions, I currently advise companies on several areas of Microsoft 365: – Entra ID (Security, IAM) – Teams (Call center, Teams Prem... Show more

Ricardo Rincon

Ricardo Rincon

I have a degree in computer science, a passion for modeling and data analysis with Power BI, 13 years of experience in BI and 9 years with Power BI, and my entire career working with data and business metrics.

I have a degree in computer science, a passion for modeling and data analysis with Power BI, 13 years of experience in BI and 9 years with Power BI, and my entire career working with data and business metrics. Show more

Bob Ward

Bob Ward

Bob Ward is a Principal Architect for the Microsoft Azure Data team, which owns the development for Microsoft SQL ground to cloud to fabric. Bob has worked for Microsoft for 31+ years on every version of SQL Server shipped from OS/2 1.1 to SQL Server 2025 including Azure SQL and SQL database in Fabric. Bob is a well-known speaker on SQL Server, Azure SQL, AI, and Microsoft Fabric often presenting talks on new releases, internals, and specialized topics at events such as SQLBits, Microsoft Build, Microsoft Ignite, PASS Summit, Fabric Community Conference, and VS Live. You can also learn Azure SQL from him on the popular series https://aka.ms/azuresql4beginners. You can follow him at @bobwardms or linkedin.com/in/bobwardms. Bob is the author of the books Pro SQL Server on Linux, SQL Server 2019 Revealed, Azure SQL Revealed, SQL Server 2022 Revealed, and Azure SQL Revealed 2nd Edition available from Apress Media.

Bob Ward is a Principal Architect for the Microsoft Azure Data team, which owns the development for Microsoft SQL ground to cloud to fabric. Bob has worked for Microsoft for 31+ years on every version of SQL Server shipped from OS/2 1.1 to SQL Server... Show more

Dave Stokes

Dave Stokes

Dave Stokes has worked for organizations ranging alphabetically from the American Heart Association to Xerox in areas ranging from anti-submarine warfare to webmaster. He lives in a small Texas town with the required hound dog and pickup truck. Dave is the Author of MySQL & JSON - A Practical Programming Guide, now in a second edition.

Dave Stokes has worked for organizations ranging alphabetically from the American Heart Association to Xerox in areas ranging from anti-submarine warfare to webmaster. He lives in a small Texas town with the required hound dog and pickup truck. Dave... 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.