Most Active Speakers 2025

Sessionize proudly presents the list of the most active speakers in the year 2025!

  • 1123 speakers
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Atulpriya Sharma

Atulpriya Sharma

Manual tester turned developer advocate. I talk about Cloud Native, Kubernetes & DevOps to help others adopt cloud native. I also create content – blog posts, webinars – & host Twitter spaces and strongly believe in collaborative learning and growth.

In addition, I'm also a CNCF Ambassador and the organizer of CNCF Hyderabad. When I am not working, I’m a food & travel blogger & love exploring eateries & going on road trips. You can find me at @TheTechMaharaj on Twitter.

Manual tester turned developer advocate. I talk about Cloud Native, Kubernetes & DevOps to help others adopt cloud native. I also create content – blog posts, webinars – & host Twitter spaces and strongly believe in collaborative learning and growth.... Show more

Erin Stellato

Erin Stellato

Erin Stellato is a Principal Program Manager on the SQL Tools and Experiences team, helping advance tools that customers use daily with SQL databases. She is passionate about data and chocolate, not always in that order. She previously worked as a consultant and was a Data Platform MVP, and has been an active member of the SQL community as both a volunteer and speaker. Her areas of interest within the engine include Query Store, Extended Events, statistics, and performance tuning; and she also enjoys helping accidental/involuntary DBAs figure out how SQL Server works.

Erin Stellato is a Principal Program Manager on the SQL Tools and Experiences team, helping advance tools that customers use daily with SQL databases. She is passionate about data and chocolate, not always in that order. She previously worked as a ... Show more

Hans Kristian Flaatten

Hans Kristian Flaatten

CNCF Abassasor, Google Developer Expert (GDE) for Cloud, Grafana Champion and Platform Engineer at the Norwegian Labor and Welfare Administration (NAV) working on NAIS - a platform built to increase development speed by providing the best experience to build, run and operate applications.

Co-organiser of KCD Oslo, Cloud Native and GDG meetups in Norway. Regular speaker at national and international conferences on all things cloud native.

CNCF Abassasor, Google Developer Expert (GDE) for Cloud, Grafana Champion and Platform Engineer at the Norwegian Labor and Welfare Administration (NAV) working on NAIS - a platform built to increase development speed by providing the best experience ... Show more

Cory House

Cory House

Cory is an author, a 12 time Microsoft MVP, and international speaker. He is founder of reactjsconsulting, where he helps companies transition to React. He has trained over 10,000 software developers at conferences and businesses worldwide. Cory has authored over a dozen courses on JavaScript, React, C#, testing, and web development on Pluralsight and Dometrain. He shares software development tips daily on X as @housecor.

Cory is an author, a 12 time Microsoft MVP, and international speaker. He is founder of reactjsconsulting, where he helps companies transition to React. He has trained over 10,000 software developers at conferences and businesses worldwide. Cory has ... Show more

Irine Kokilashvili

Irine Kokilashvili

Platform Engineer at Space International during the day, tinkerer during the night

Platform Engineer at Space International during the day, tinkerer during the night Show more

Ian Schraier

Ian Schraier

Ian is a passionate IT pro with over 25 years of experience in the field. As a lead resource for his employer in matters of infrastructure, virtualization and cloud services, Ian uses his position as a Principal Architect to scope & review IT implementation projects of all sizes. He created Help My IT Career as a way to give back to the IT community that has supported his own career success. Ian advises clients in the IT industry on matters of job searching, skill development, resume creation, interviewing and other career concerns. His presentation topics include "traditional" soft-skills and career guidance subjects, with a supportive, understanding mindset. He earned a B.S. in Speech Communication from Bradley University, a graduate certificate in Project Management from Missouri State University, and a Masters Degree in IT Management from Western Governors University. He lives in the St. Louis area with his wife and their three cats.

Ian is a passionate IT pro with over 25 years of experience in the field. As a lead resource for his employer in matters of infrastructure, virtualization and cloud services, Ian uses his position as a Principal Architect to scope & review IT impleme... Show more

Małgorzata Janeczek

Małgorzata Janeczek

Gosia is a full-stack developer specialising in .NET and React, with a knack for test automation, DevOps and building reliable, user-friendly applications. After graduating in Automatic Control and Robotics, she discovered her passion for programming and hasn’t looked back since.

When she’s not coding, Gosia is a mom, a painter, and a piano beginner. She’s a lifelong learner who loves solving problems and sharing her discoveries with others. Whether you know her as a developer, a friend, a colleague, or just “hey, you!”, Gosia brings curiosity and creativity to everything she does.

Gosia is a full-stack developer specialising in .NET and React, with a knack for test automation, DevOps and building reliable, user-friendly applications. After graduating in Automatic Control and Robotics, she discovered her passion for programming... Show more

Jeroen (Jay) ter Heerdt

Jeroen (Jay) ter Heerdt

Jeroen ter Heerdt is a Product Manager with Microsoft. He works on Power BI and is passionate about "all things data"; whether it is about databases, data warehousing, BI, big data, data visualizations, self-service BI, advanced analytics, real-time BI or anything even remotely related to data or insight. He strives to apply these concepts in his life as much as possible. Jeroen combines enthusiasm, vision, and hands-on experience into his talks. His blog is http://www.dutchdatadude.com and he can be found on social media at @jaypowerbi.

Jeroen ter Heerdt is a Product Manager with Microsoft. He works on Power BI and is passionate about "all things data"; whether it is about databases, data warehousing, BI, big data, data visualizations, self-service BI, advanced analytics, real-time ... Show more

Daniel Madalitso Phiri

Daniel Madalitso Phiri

Daniel is an advisor and developer with a specialisation in web technologies and open-source tooling. He works in Developer Experience at Weaviate, an open-source AI-Native vector database.

Daniel is an advisor and developer with a specialisation in web technologies and open-source tooling. He works in Developer Experience at Weaviate, an open-source AI-Native vector database. Show more

Roel Hartman

Roel Hartman

Roel started a long time ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5. Since over 10 years he focuses mainly on Oracle Application Express.
Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG's Kscope and a number of local Oracle User Groups.
Within ODTUG he acted as the APEX Content Lead for the Kscope14 and KScope15 conferences and was a member of the Board of Directors from 2018 to 2024.
He keeps an (APEX-related) blog on https://roelhartman.blogspot.com.
In June 2009 Roel received an Oracle ACE award and in August 2010 he's appointed as Oracle ACE Director.
Roel is a co-writer of the "Expert Oracle Application Express" and "Oracle Application Express for Mobile Web Applications" books.
Roel is Director at APEX Consulting in The Netherlands.

Roel started a long time ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5. Since over 10 years he focuses mainly on Oracle Application Express. Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG's Kscope and a number of... Show more

Dr Booma Poolan Marikannan

Dr Booma Poolan Marikannan

Dr Booma Poolan Marikannan – Microsoft AI MVP, GenAI SME, Group Manager, Data & AI, Avanade, Charlotte, NC,USA
Dr Booma, a seasoned technologist with over a decade of extensive experience in the realms of technology and leadership, stands at the helm as the Microsoft AI MVP, AI Solution Architect, GenAI SME, Group Manager, Data & AI, Avanade, Charlotte, NC,USA. Her illustrious career has spanned more than 14 years, during which she has been a stalwart contributor to the conception and realization of groundbreaking GenAI solutions. With each endeavor, she adeptly illustrates the transformative potential of GenAI, casting a luminous spotlight on its profound implications for businesses.
Her contributions in this domain have earned her international acclaim, as she stands as a revered luminary in the field. Notably, she has been bestowed with the prestigious title of "Microsoft Most Valuable Professional in AI Platform(MVP-AI)", "Young Women Scientist" by the esteemed institution, HumCen, a testament to her unwavering dedication and exemplary work. Further enhancing her standing as a trailblazer, Dr Booma has been honored as an "Outstanding Researcher/Academician" by Women Icon, a tribute to her relentless pursuit of excellence.
Beyond her remarkable achievements, Dr Booma frequently imparts her profound wisdom and experience through the written word, sharing her erudition in the field of Artificial Intelligence through insightful articles and engaging tech discussions.
Notably, Dr Booma's dedication extends beyond her professional achievements. She is deeply committed to raising diversity and inclusivity within the world of technology. As a mentor to budding talent, she emphasizes the profound significance of inclusivity and equity, championing the cause of underrepresented voices and championing the principles of fairness and opportunity for all. Her indomitable spirit and achievements serve as an enduring inspiration to the world of technology and beyond.

Dr Booma Poolan Marikannan – Microsoft AI MVP, GenAI SME, Group Manager, Data & AI, Avanade, Charlotte, NC,USA Dr Booma, a seasoned technologist with over a decade of extensive experience in the realms of technology and leadership, stands at the hel... Show more

John Deardurff

John Deardurff

John has been a Microsoft Certified Trainer (MCT) since the summer of 2000 and specializes in teaching Azure SQL and SQL Server workshops. He is currently a Senior Cloud Solution Architect for Microsoft, a former MCT Regional Lead, and a Data Platform MVP alumni.

John has been a Microsoft Certified Trainer (MCT) since the summer of 2000 and specializes in teaching Azure SQL and SQL Server workshops. He is currently a Senior Cloud Solution Architect for Microsoft, a former MCT Regional Lead, and a Data Platfor... Show more

Peter Zaitsev

Peter Zaitsev

Peter Zaitsev is an entrepreneur and co-founder of Percona, Coroot and other tech companies. As one of the leading experts in Open Source strategy and database optimization, Peter has applied his technical knowledge and entrepreneurial drive to contribute as a board member and advisor to several open source startups. Additionally, Peter is the co-author of the book "High Performance MySQL: Optimization, Backup and Replication," one of the most popular books on MySQL performance.

Peter Zaitsev is an entrepreneur and co-founder of Percona, Coroot and other tech companies. As one of the leading experts in Open Source strategy and database optimization, Peter has applied his technical knowledge and entrepreneurial drive to contr... Show more

Chaitanya Rahalkar

Chaitanya Rahalkar

As a security professional and researcher focused on building scalable security systems, I bring valuable perspective on innovative security solutions that truly work at scale. With several published papers in cryptography, network security, and privacy, I combine academic rigor with practical implementation experience. My experience collaborating with teams to design and implement security solutions while maintaining operational excellence in areas like scalability, performance, and cost optimization provides me with a strong framework to evaluate cutting-edge security initiatives.

I am also a course instructor and the author of my first book - "Cybersecurity for Startups: A Blueprint for Growing Securely," where I share practical insights to help emerging companies build strong security foundations. Currently, I am the cofounder of OmniChat, an AI-based startup revolutionizing customer engagement solutions. My entrepreneurial journey includes roles as a founding engineer at two startups, where I played a pivotal role in architecting and building their engineering systems from the ground up.

My background including security engineering at Praetorian, Meta (formerly Facebook), and now Block Inc (formerly Square Inc.) gives me broad exposure to diverse security challenges and solutions across different industries and scales. Having worked on projects from fuzzing platforms to payment systems security, I can evaluate and brainstorm problems from multiple technical angles while understanding their practical business impact. I'm passionate about fostering innovation in cybersecurity and believe my experience building scalable security systems combined with my academic research background would help identify truly groundbreaking contributions to the field. The opportunity to recognize excellence while connecting with other security leaders aligns with my commitment to advancing cybersecurity practices across the industry.

As a security professional and researcher focused on building scalable security systems, I bring valuable perspective on innovative security solutions that truly work at scale. With several published papers in cryptography, network security, and priv... Show more

Michael McKinley

Michael McKinley

Michael McKinley is the founder of McKinley Consulting. Michael has managed projects and workstreams in consulting for the last thirteen years, in areas including data analytics, change management, operations excellence, and supply chain transformation.

Michael McKinley is the founder of McKinley Consulting. Michael has managed projects and workstreams in consulting for the last thirteen years, in areas including data analytics, change management, operations excellence, and supply chain transformati... Show more

Toni Petrina

Toni Petrina

Lead SRE at Visma e-conomic, developer at heart and frequent speaker at conferences, meetups and local events. Found passion in QBasic, jumped through C++, C#, JavaScript, TypeScript - only to land in the world of YAML. Finally, a full-stack engineer! Nowadays works on everything from UI to Cloud tooling. He spends most of the time at the keyboard typing yet another demo or application. If you take his keyboard away from him, he will talk endlessly about code, best practices and what not to do... Been coding for over a decade to know if something is a programming fad or not - and prefers spaces over tabs. Strong proponent of Open Source and all things chocolate.

Lead SRE at Visma e-conomic, developer at heart and frequent speaker at conferences, meetups and local events. Found passion in QBasic, jumped through C++, C#, JavaScript, TypeScript - only to land in the world of YAML. Finally, a full-stack engineer... Show more

Melissa Jurkoic

Melissa Jurkoic

Melissa has worked in the tech industry for over 25 years in roles ranging from Junior Software Engineer to her current role as the Chief Operations Officer at Benson Consulting, Inc.
At Benson Consulting Inc., her focus as COO is on driving operational excellence through strategic leadership and leveraging her expertise in software development and business strategy.
She holds a Bachelor’s in Computer Science from the University of New Hampshire and an executive certificate in Management and Leadership from MIT.
She has volunteered with organizations globally including ChickTech, Everwise, WITI, NH Tech Alliance, Microsoft DigiGirlz, wiseHer, Girl Scouts and AnitaB.org.
Concurrently, as a co-founder of Diversify Thinking, she advocates for diversity and inclusion, channeling her passion into initiatives that create community and real change. Her work is dedicated to creating environments where a diversity of great minds can thrive and make impactful contributions to technology and society.

Melissa has worked in the tech industry for over 25 years in roles ranging from Junior Software Engineer to her current role as the Chief Operations Officer at Benson Consulting, Inc. At Benson Consulting Inc., her focus as COO is on driving operati... Show more

Brent Ozar

Brent Ozar

I make Microsoft SQL Server go faster. I love teaching, travel, cars, and laughing. Las Vegas, US. He/him.

I make Microsoft SQL Server go faster. I love teaching, travel, cars, and laughing. Las Vegas, US. He/him. Show more

Luis Beltran

Luis Beltran

I'm a Microsoft MVP in Azure, Artificial Intelligence, and Developer Technologies. I am currently pursuing a PhD in Engineering Informatics at Tomas Bata University in Zlin, Czech Republic.

I've been developing .NET apps for +10 years. I find C# a really powerful language which allow us to create different kinds of software. I focus on mobile apps (Xamarin/.NET MAUI), cloud computing (Azure) and AI.

I enjoy sharing my knowledge with others.

I'm a Microsoft MVP in Azure, Artificial Intelligence, and Developer Technologies. I am currently pursuing a PhD in Engineering Informatics at Tomas Bata University in Zlin, Czech Republic. I've been developing .NET apps for +10 years. I find C# a... Show more

Ayesha Kaleem

Ayesha Kaleem

I am a Site Reliability Engineer (SRE) and Kubernetes enthusiast with extensive experience in ensuring complex systems' reliability, scalability, and performance. I specialize in deploying and managing Kubernetes clusters, optimizing infrastructure, and automating processes.

With a strong foundation in SRE principles and DevOps practices, I thrive in fast-paced environments and am committed to continuous learning and innovation. I am also an active contributor to the tech community, sharing my knowledge through talks and workshops.

I am a Site Reliability Engineer (SRE) and Kubernetes enthusiast with extensive experience in ensuring complex systems' reliability, scalability, and performance. I specialize in deploying and managing Kubernetes clusters, optimizing infrastructure, ... Show more

José Manuel Castillo García

José Manuel Castillo García

Enterprise Administrator (MCSE). Microsoft cloud service adoption and migration specialist with eight years of experience. Passionate about cloud services, I have delivered training sessions on Office 365 products to users and other administrators.
Speaker:
Microsoft 365 Live 2021, Intune Overview
Academy365, 2021 Intune Overview
Academy 365, Windows 365
Global Azure 2023, Intune for Admins
Tenerife Winter 2024, Como preparar nuestro entorno para Microsoft Copilot
Copilot Days2025, Como preparar nuestro entorno para Microsoft Copilot y mejorar nuestros resultados.
Microsoft comunity days 2025, Batallitas de consultor
Collabdays 2025, Gestión de Documentación en Sharepoint y Copilot

Enterprise Administrator (MCSE). Microsoft cloud service adoption and migration specialist with eight years of experience. Passionate about cloud services, I have delivered training sessions on Office 365 products to users and other administrators. ... Show more

Giovanna Galleno Malaga

Giovanna Galleno Malaga

Versatile Soft Skills Trainer, Learning Designer, and IT Project Manager with 15+ years of experience designing and delivering tailored and impactful training solutions, leading dynamic workshops, and integrating e-learning strategies that drive measurable performance outcomes in diverse industries —including Mining, Technology, Finance, and Healthcare.

Skilled in managing cross-functional and multicultural teams, aligning initiatives with strategic goals, and executing projects that boost productivity, efficiency, and professional growth

++ Talks & workshops in Italian, English, and Spanish.

Versatile Soft Skills Trainer, Learning Designer, and IT Project Manager with 15+ years of experience designing and delivering tailored and impactful training solutions, leading dynamic workshops, and integrating e-learning strategies that drive meas... Show more

Parv Chana

Parv Chana

With over 20 years in the industry, he is a seasoned BI Architect and Consultant. Running his own consulting company, PeryTUS IT Solutions, he provides Power BI solutions to clients ranging from small to large enterprises. He has a diverse background across industries and has delivered customized solutions to meet his clients' BI needs. Holding the title of Microsoft Data Platform MVP, he has been working with Power BI since its launch in 2015.

His expertise encompasses end-to-end Power BI implementation, analysis of existing solutions, promoting best practices for scalable BI models, and training to help clients reach their BI objectives.

With over 20 years in the industry, he is a seasoned BI Architect and Consultant. Running his own consulting company, PeryTUS IT Solutions, he provides Power BI solutions to clients ranging from small to large enterprises. He has a diverse background... Show more

Soumaya Erradi

Soumaya Erradi

I'm an experienced web developer and a passionate IT and electronics trainer, specializing in frontend development and enterprise applications built with Angular.
I spend most of my time exploring what's new in the tech world and helping other developers improve their skills.
As a conference speaker, I bring advanced Angular topics, tips for the integration of smart contracts and best solutions for web3 applications.

I'm an experienced web developer and a passionate IT and electronics trainer, specializing in frontend development and enterprise applications built with Angular. I spend most of my time exploring what's new in the tech world and helping other devel... Show more

John Martin

John Martin

John is an experienced data platform professional having spent over fifteen years working with Microsoft SQL Server, Azure, and AWS technologies. Working closely with clients to solve their data platform problems with innovative solutions with a focus on simplicity, maintainability, and automation.

John is an experienced data platform professional having spent over fifteen years working with Microsoft SQL Server, Azure, and AWS technologies. Working closely with clients to solve their data platform problems with innovative solutions with a focu... Show more

Torsten Strauß

Torsten Strauß

Torsten Strauß (MVP) is the CEO of inside-sqlserver and Principal Microsoft SQL Consultant at Sarpedon Quality Lab. He is a multi-certified Microsoft expert with a strong focus on Azure DevOps, SQL Server performance optimization, and the development of scalable SQL Server and Azure SQL solutions.
Torsten has delivered more than 330 technical sessions at national and international conferences and user groups. Since 2018, he has been recognized annually as a Microsoft Most Valuable Professional for Data Platform — and since 2025 also for Developer Technologies. He is a Microsoft Certified Trainer and has been listed among Sessionize’s Top Speakers for three consecutive years.

Torsten Strauß (MVP) is the CEO of inside-sqlserver and Principal Microsoft SQL Consultant at Sarpedon Quality Lab. He is a multi-certified Microsoft expert with a strong focus on Azure DevOps, SQL Server performance optimization, and the development... Show more

Karinne Bessette

Karinne Bessette

They have a solid background in network and security, showcasing their expertise through certifications in Microsoft 365, Azure, and Veeam Software since 2017. As a Technical storyteller at Veeam Software in the office of the CTO, they focus on Microsoft 365 and Backup Technologies, engaging with industry peers and contributing to product development through insightful feedback. They are also a Knox County Career Center instructor, certified MCT, and Microsoft MVP. They teach various IT subjects, including CompTIA certifications and Microsoft Azure fundamentals, emphasizing practical, hands-on learning. Additionally, their work with the Board of Education involves collaborating on curriculum development and integrating current industry trends to enhance tech education programs. Their commitment is evident in their continuous learning and adaptation to new technological advancements. (See more: https://linktr.ee/rinbytes).

They have a solid background in network and security, showcasing their expertise through certifications in Microsoft 365, Azure, and Veeam Software since 2017. As a Technical storyteller at Veeam Software in the office of the CTO, they focus on Micro... Show more

Khaled Chowdhury

Khaled Chowdhury

"Accidental Data Professional" started in finance and found a passion for analytics that, through a series of fortunate accidents, transformed me from Finance Director to Chief Data Officer. Now at Data Crafters, my team and I are bringing the power of Microsoft Fabric and Power BI into our customers' hands—creating visibility, enabling better decision-making, and freeing people from manual data drudgery. Together, we're transforming how organizations leverage data to achieve sustainable growth and success.

"Accidental Data Professional" started in finance and found a passion for analytics that, through a series of fortunate accidents, transformed me from Finance Director to Chief Data Officer. Now at Data Crafters, my team and I are bringing the power ... Show more

Kev Chant

Kev Chant

Data Platform professional based in the Netherlands. Microsoft Certified Trainer and Data Platform MVP.

Many years experience with Microsoft Data Platforms. Along the way gained various Microsoft Certifications.

Held various roles over the years. Over that tome gained real-life experience with various Microsoft Data Platform offerings and ALM solutions such as Azure Devops and GitHub.

Involved with Microsoft technical community in various ways. Including blogs, videos, events and sharing various repositories in GitHub.

Data Platform professional based in the Netherlands. Microsoft Certified Trainer and Data Platform MVP. Many years experience with Microsoft Data Platforms. Along the way gained various Microsoft Certifications. Held various roles over the yea... Show more

Shubhangi Goyal

Shubhangi Goyal

Shubhangi is an award winning data and AI professional worked in Fortune 500 companies to agile start-ups. She has a background in computer science engineering with an MSc in Business Analytics from the University of Bath, UK. She works as a Senior Analyst at a leading FTSE100 company in financial services and insurance in the UK. Previously, she led multiple projects at ICS AI Ltd, a Microsoft UK inner circle partner, focusing on artificial intelligence and data at the forefront of technology for the public sector in the UK. She has spent nearly a decade in data analytics, data science, data strategy, and AI, leveraging algorithms to extract insights, identify patterns, and understand human language in large datasets. She leads the London Chapter for Women In Data which is a platform for tech enthusiasts of all backgrounds to connect, grow and learn together. She is a verified expert and mentor at TopMate. She has delivered sessions in over 10 countries. She has also been nominated for several awards including WomenTechNetwork global awards.

Shubhangi is an award winning data and AI professional worked in Fortune 500 companies to agile start-ups. She has a background in computer science engineering with an MSc in Business Analytics from the University of Bath, UK. She works as a Senior A... Show more

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

Most Active Speakers 2025

Every year, we put together a list of the most active speakers. This list features the top 3% of speakers who have participated in events using Sessionize during the 2025.

The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2025. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 39,000 unique accepted speakers this year, the 3% is 1163. Not all of them have their speaker profiles set as public, and we respect that, so the list doesn't show all of them.

The calculation is based on the number of accepted events, that's the main criteria, but to get more refined results we also look at things like multiple sessions per event, sharing a session with a co-speaker and how big the event is. Number of submissions and declined sessions don't affect the list.

Please note that the count of events and sessions in this list does not represent the number of events and sessions from the year 2025. Instead, it shows the number of events and sessions featured on the speaker's public speaker profile; these numbers have nothing to do with the award itself.