Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Cristina Tarabini-Castellani Ciordia

Cristina Tarabini-Castellani Ciordia

Ingeniera Informática, especializada en SQL Server. Mas de 12 años modelando, desarrollando, administrando y optimizando bases de datos en un entorno en el que la información debe de llegar en el menor tiempo posible.

Ingeniera Informática, especializada en SQL Server. Mas de 12 años modelando, desarrollando, administrando y optimizando bases de datos en un entorno en el que la información debe de llegar en el menor tiempo posible. Show more

Aldan Creo

Aldan Creo

Hi! I'm Aldan, and I'm passionate about technology and research. I studied Computer Science in Spain, France and Switzerland, founded a few associations and contributed to open source projects. I've also been lucky enough to get some recognition for leadership and academic achievements, and I love learning from the community and participating in events. Currently, I'm working on research that combines Natural Language Processing and Knowledge Graphs, two topics I'm always happy to talk about!

Hi! I'm Aldan, and I'm passionate about technology and research. I studied Computer Science in Spain, France and Switzerland, founded a few associations and contributed to open source projects. I've also been lucky enough to get some recognition for ... Show more

Heini Ilmarinen

Heini Ilmarinen

Heini is a math teacher turned Azure expert. With her background in mathematics and teaching, she has a great passion for problem solving, simplifying complex things and a unique approach to architectures.
She is a Co-founder at Bruvo and a Data Platform MVP, specializing in Azure infrastructure and the data platform. She has been working with customers large and small for the past several years to help them sort out their path to the cloud and make sense of their architecture - both hybrid and cloud. She has worked extensively with both Azure infrastructure and analytics solutions, and makes the most of this skillset in her projects, as well as while speaking. On her free time Heini spends time in the nature, either snowboarding or mountain biking, depending on the season.

Heini is a math teacher turned Azure expert. With her background in mathematics and teaching, she has a great passion for problem solving, simplifying complex things and a unique approach to architectures. She is a Co-founder at Bruvo and a Data Pla... Show more

Anjuli Jhakry

Anjuli Jhakry

Meet Anjuli Jhakry: A Microsoft MVP and .NET developer at 4DotNet by day and a Microsoft Entra ID explorer by night. I'm navigating the vast ecosystem of Microsoft, always eager to learn. Beyond this, I am passionate about giving presentations and advocating for the incredible potential of tech to everyone.

Meet Anjuli Jhakry: A Microsoft MVP and .NET developer at 4DotNet by day and a Microsoft Entra ID explorer by night. I'm navigating the vast ecosystem of Microsoft, always eager to learn. Beyond this, I am passionate about giving presentations and ad... Show more

Elian Van Cutsem

Elian Van Cutsem

Elian Van Cutsem or "ElianCodes" is a full-stack developer, creative technologist, and all-around internet troublemaker based in Belgium. He’s the CTO at Vulpo and works in Developer Relations at React Bricks, focusing on developer experience, documentation, and education. Previously, he was a Software Engineer and core maintainer at Astro.

Elian is also a co-organizer of several major JavaScript communities and events, including BeJS, React Paris, React Brussels, and React Africa.

Alongside his professional work, he creates provocative and experimental AI projects, designed to challenge our assumptions about ethics, automation, and human behavior. His work blends code and commentary, often in ways that are both hilarious and uncomfortably real.

Elian is known for his passion, puns, and offbeat sense of humor. His talks combine technical insight with a strong dose of creative chaos—guaranteed fun on stage.

Elian Van Cutsem or "ElianCodes" is a full-stack developer, creative technologist, and all-around internet troublemaker based in Belgium. He’s the CTO at Vulpo and works in Developer Relations at React Bricks, focusing on developer experience, docume... Show more

Estera Kot

Estera Kot

Dr. Estera Kot is the Chief Technology Officer at Clouds On Mars, where she drives the company’s innovation in Data & AI strategy and execution. A former Principal Product Manager at Microsoft, she played a key role in building performance-critical components of Azure Synapse Analytics and Microsoft Fabric, focusing on Apache Spark and high-efficiency analytical engines.

Estera is a Polish-born engineer by passion, fluent in several programming languages and recognized for her hands-on technical depth. She earned her Ph.D. in Computer Science with distinction, specializing in machine and deep learning for medical imaging. Her research has led to numerous scientific publications and a U.S. patent in big data processing.

Her career spans global tech leaders like Intel, Sony, and Procter & Gamble. She is a respected educator and mentor, having designed full-time and postgraduate AI-in-Cloud programs at the Warsaw University of Technology. Her students now work at CERN, Google, Meta, and other top-tier institutions worldwide. Estera is a guest lecturer at UCLA—one of the top public research universities in the U.S.—and Łazarski University in Warsaw.

As a speaker, she’s presented at top industry events including MLADS (Microsoft’s internal AI and data science conference in Redmond), the inaugural FabCon in Las Vegas, and several AI and cloud conferences across Europe. She also produces educational content on YouTube, making complex AI topics accessible and practical.

Estera is committed to building scalable, ethical, and real-world-driven AI solutions, with a focus on impact over hype.

Dr. Estera Kot is the Chief Technology Officer at Clouds On Mars, where she drives the company’s innovation in Data & AI strategy and execution. A former Principal Product Manager at Microsoft, she played a key role in building performance-critical c... Show more

Doug Leal

Doug Leal

With more than two decades of experience, Doug is a technology and data leader at CGI who helps clients execute critical data-centric solutions, analytics and data engineering strategies, and AI initiatives. He has led high-impact transformations driven by modern cloud data platforms and AI-driven solutions that improve decision-making, streamline operations, and unlock new opportunities across multiple industries.

Doug partners with business and technology leaders to accelerate digital transformation and scale innovation. He serves on the Databricks Partner Product Advisory Board, representing CGI, and the Per Scholas Orlando Advisory Board. He also is recognized by Databricks as a Champion for CGI, bringing leading-edge insight directly into client strategies.

With more than two decades of experience, Doug is a technology and data leader at CGI who helps clients execute critical data-centric solutions, analytics and data engineering strategies, and AI initiatives. He has led high-impact transformations dri... Show more

Lee Markum

Lee Markum

Lee is a SQL Server Database Administrator who got his start with SQL Server back in 2009. Back in the day, he earned an MCTS certification on SQL Server 2008. That was followed up in 2020 with the AZ-900 Azure Fundamentals and DP-900 Microsoft Azure Data Fundamentals certifications. He has officially been a DBA since 2014. Lee has worked for small companies under 100 people to large enterprises of thousands of employees and used databases of all sizes.

He has presented at SQL Server Meetups, New Stars of Data, SQL Saturdays, was an online speaker for the RedGate PASS Data Community Summit 2022, and spoke at Saint Louis DevUp in 2024 and 2025.

Lee blogs at LeeMarkum.com and he loves finding and experimenting with new features in SQL Server. High availability and disaster recovery as well as performance monitoring and troubleshooting are of special interest to Lee.

Lee is a SQL Server Database Administrator who got his start with SQL Server back in 2009. Back in the day, he earned an MCTS certification on SQL Server 2008. That was followed up in 2020 with the AZ-900 Azure Fundamentals and DP-900 Microsoft Azure... Show more

Nerando Johnson

Nerando Johnson

Current Atlanta freeCodeCamp Organizer | Software Developer

Current Atlanta freeCodeCamp Organizer | Software Developer 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

Elena Drakulevska

Elena Drakulevska

Hi, I’m Elena Drakulevska, a Principal Product Manager at Microsoft working on Power BI Core Visuals, where I help shape the future of reporting and data visualization.

I’m also an international speaker, Microsoft MVP alumna, and founder of MoonStory, a platform focused on UX Design and Data Visualization. Through conferences, mentoring, blogging, and community initiatives, I share my mission of making technology more human, empowering, and joyful. ✨

Hi, I’m Elena Drakulevska, a Principal Product Manager at Microsoft working on Power BI Core Visuals, where I help shape the future of reporting and data visualization. I’m also an international speaker, Microsoft MVP alumna, and founder of MoonSt... Show more

Edoardo Dusi

Edoardo Dusi

Edoardo is a Developer Relations Engineer. He has a strong software developer and team leader background, working on various projects and platforms. He is passionate about creating and sharing content that educates and inspires other developers, such as tech talks, videos, podcasts, conferences, and more. He enjoys connecting with the developer community and promoting the benefits of open source software.

Edoardo is a Developer Relations Engineer. He has a strong software developer and team leader background, working on various projects and platforms. He is passionate about creating and sharing content that educates and inspires other developers, such... Show more

Jeremy Laplaine

Jeremy Laplaine

Microsoft and AI consultant, trainer and speaker. MVP Alumni in Business Applications, 12 years of experience in Power BI / Fabric. Moved to the AI-augmented side.

Microsoft and AI consultant, trainer and speaker. MVP Alumni in Business Applications, 12 years of experience in Power BI / Fabric. Moved to the AI-augmented side. Show more

Arnaud Giuliani

Arnaud Giuliani

Arnaud Giuliani is co-founder of Kotzilla (Tech, Vision & Product) and creator of Koin, the most widely adopted dependency injection framework for Kotlin.

With 18 years of experience in software engineering across Java/JVM systems and Android, he has been an active speaker since 2016 with 60+ talks delivered across Europe and the US.

Recognized as a Google Developer Expert for Android & Kotlin and a member of the Kotlin Foundation, he focuses on the intersection of software architecture, developer experience, and AI-driven observability for mobile applications.

Arnaud Giuliani is co-founder of Kotzilla (Tech, Vision & Product) and creator of Koin, the most widely adopted dependency injection framework for Kotlin. With 18 years of experience in software engineering across Java/JVM systems and Android, he... Show more

Connell Sharp

Connell Sharp

After falling in love with coding in 2005, Connell became a fan of software architecture and design, and now spends a lot of time drawing boxes and arrows to help visualise concepts.

This led to the creation of his YouTube channel @DrawingBoxes, which establishes a simple animated visual presentation style shared by his talks and blog.

Always an advocate for developer communities, he co-organises the .NET Notts meetup, and now works at Stack Overflow where he continuously improves the site enabling communities worldwide.

After falling in love with coding in 2005, Connell became a fan of software architecture and design, and now spends a lot of time drawing boxes and arrows to help visualise concepts. This led to the creation of his YouTube channel @DrawingBoxes, w... Show more

Sara Lagerquist

Sara Lagerquist

A Business and Application Architect building solutions on the Power Platform based in Stockholm Sweden. Speaker, blogger, event organizer and very involved in community activities.

A Business and Application Architect building solutions on the Power Platform based in Stockholm Sweden. Speaker, blogger, event organizer and very involved in community activities. Show more

Alvin Ashcraft

Alvin Ashcraft

Alvin Ashcraft is a veteran developer, author, and community leader with over three decades of industry experience. As a Senior Content Developer at Microsoft, he helps developers build the next generation of intelligent apps using Microsoft Foundry. Previously, he managed the documentation for WinUI, the Windows App SDK, and Windows SDK.

Alvin is a dedicated community builder, serving as a founding organizer, Treasurer, and acting VP for the TechBash conference. He has authored definitive guides for developers, including Learn WinUI 3 and Parallel Programming and Concurrency with C# and .NET.

Alvin Ashcraft is a veteran developer, author, and community leader with over three decades of industry experience. As a Senior Content Developer at Microsoft, he helps developers build the next generation of intelligent apps using Microsoft Foundry.... Show more

Amarender Peddamalku

Amarender Peddamalku

Amarender Peddamalku is a Microsoft MVP in Business Applications. As a Digital Transformation Leader and Microsoft Modern Work Practice Lead at Perficient, my focus is on Employee Experience and Power Platform. Has over 15 years of experience with Microsoft Technologies and worked with every single version of SharePoint since its inception.

Amarender Peddamalku is a Microsoft MVP in Business Applications. As a Digital Transformation Leader and Microsoft Modern Work Practice Lead at Perficient, my focus is on Employee Experience and Power Platform. Has over 15 years of experience with Mi... Show more

Ambesh Singh

Ambesh Singh

I am a Father, International Speaker, Software Engineer, and Architect at Visionet Deutschland GmbH, currently living in Germany. My interests range from technology to travel. I am also interested in coaching, entrepreneurship, reading, vlogging and programming.

I am a Father, International Speaker, Software Engineer, and Architect at Visionet Deutschland GmbH, currently living in Germany. My interests range from technology to travel. I am also interested in coaching, entrepreneurship, reading, vlogging and ... Show more

Jorge Fernández Sánchez

Jorge Fernández Sánchez

👋 ¡Hola! Soy Jorge Fernández, un apasionado de la tecnología con más de 21 años de experiencia en el ecosistema Microsoft. A lo largo de mi carrera, he trabajado como desarrollador y líder de equipo, impulsando proyectos innovadores y ayudando a empresas a potenciar sus soluciones con tecnologías de vanguardia.

Me motiva el aprendizaje continuo y el intercambio de conocimientos, lo que me llevó a fundar @guarandingaTECH y compartir contenido en #AzureBrains y Global AI Spain Madrid. Mi compromiso con la comunidad es inquebrantable, siempre explorando nuevas formas de conectar, enseñar y seguir creciendo juntos. 🚀

👋 ¡Hola! Soy Jorge Fernández, un apasionado de la tecnología con más de 21 años de experiencia en el ecosistema Microsoft. A lo largo de mi carrera, he trabajado como desarrollador y líder de equipo, impulsando proyectos innovadores y ayudando a emp... Show more

Koen Verbeeck

Koen Verbeeck

Koen Verbeeck is a data professional working at AE. He helps organizations to get insight in their data and to improve their analytics solutions. Koen has over a decade and a half of experience in developing data warehouses, models and reports using the Microsoft data platform. Koen was a Microsoft Data Platform MVP for 8 consecutive years, and 1 year Microsoft Fabric MVP. He has a blog at http://www.sqlkover.com, writes articles for MSSQLTips.com and is a frequent speaker at Microsoft Data Platform events.

Koen Verbeeck is a data professional working at AE. He helps organizations to get insight in their data and to improve their analytics solutions. Koen has over a decade and a half of experience in developing data warehouses, models and reports using ... Show more

Hafedh Messaoudi

Hafedh Messaoudi

Hafedh is a professional coach, agile coach, and trainer with over 12 years of experience in guiding individuals and organizations toward resilience, adaptability, and improved performance. With a strong foundation in neuroscience, agility, and human sciences, Hafedh integrates these disciplines to offer a comprehensive approach to personal and organizational development. His work focuses on helping teams and leaders navigate change and foster growth in dynamic environments. Throughout his career, Hafedh has been committed to empowering his clients with practical, science-based strategies for achieving long-term success.

Hafedh is a professional coach, agile coach, and trainer with over 12 years of experience in guiding individuals and organizations toward resilience, adaptability, and improved performance. With a strong foundation in neuroscience, agility, and human... Show more

Cecilia Brusatori

Cecilia Brusatori

Empowering Organizations through Data, Analytics & AI

Tech Leader | Entrepreneur | Public Speaker | Technical Trainer | Consultant | Founder of Magna Data inc,
Microsoft Certified Professional in SQL Server, Azure, Fabric, Power BI & Excel. MCSA BI Reporting. MCP Data Scientist & Data Analyst, MCP Fabric. Microsoft Certified Trainer (MCT). AWS Cloud, Snowflake DW, Databricks Fundamentals Certs.

Empowering Organizations through Data, Analytics & AI Tech Leader | Entrepreneur | Public Speaker | Technical Trainer | Consultant | Founder of Magna Data inc, Microsoft Certified Professional in SQL Server, Azure, Fabric, Power BI & Excel. MCSA ... Show more

Dave Rendon

Dave Rendon

📘 https://amzn.to/3ummI9B
🌐 https://blog.azinsider.net
💻 https://github.azinsider.net

▬▬▬▬▬▬ Hello There! 👋 ▬▬▬▬▬▬
Let's connect - https://www.linkedin.com/in/daverndn/

I'm David Rendon (Dave Rendon), a Microsoft Azure and AI MVP for 13 consecutive years and a Microsoft Certified Trainer. As an IT professional with more than 15 years of experience, I have focused strongly on Microsoft technologies and Azure since 2010.

📘 https://amzn.to/3ummI9B 🌐 https://blog.azinsider.net 💻 https://github.azinsider.net ▬▬▬▬▬▬ Hello There! 👋 ▬▬▬▬▬▬ Let's connect - https://www.linkedin.com/in/daverndn/ I'm David Rendon (Dave Rendon), a Microsoft Azure and AI MVP for... Show more

Josh Long

Josh Long

Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of 7 books (including "Reactive Spring") and numerous best-selling video training (including "Building Microservices with Spring Boot Livelessons" with Spring Boot co-founder Phil Webb), and an open-source contributor (Spring Boot, Spring Integration, Axon, Spring Cloud, Activiti, Vaadin, etc), a Youtuber (Coffee + Software with Josh Long as well as my Spring Tips series ), and a podcaster ("A Bootiful Podcast").

Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of 7 books (including "Reactive Spring") and numerous best-selling video training (including "Building Microservices with Spring Boot Liveless... 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

Tori Tompkins

Tori Tompkins

Tori is a Principal AI Consultant at Advancing Analytics and Microsoft AI MVP. Specialising in MLOps and LLMOps, Tori has worked on many ML and data science projects with Azure and Databricks at all stages of the ML Lifecycle. She is a co-presenter of the Data & AI podcast, Totally Skewed, founder of Girls Code Too UK and Trustee of Girls in Data.

Tori is a Principal AI Consultant at Advancing Analytics and Microsoft AI MVP. Specialising in MLOps and LLMOps, Tori has worked on many ML and data science projects with Azure and Databricks at all stages of the ML Lifecycle. She is a co-presenter o... Show more

Beatriz López

Beatriz López

Apasionada de la tecnología, me renové profesionalmente y descubrí todo lo que me ofrecía, no he parado de aprender y disfruto el poder compartir, yo también fui esa persona buscando tutoriales y conocimiento y ahora toca poner mi granito de arena.

Apasionada de la tecnología, me renové profesionalmente y descubrí todo lo que me ofrecía, no he parado de aprender y disfruto el poder compartir, yo también fui esa persona buscando tutoriales y conocimiento y ahora toca poner mi granito de arena. Show more

David Campbell

David Campbell

David Campbell is Head of AI Security at Scale AI, where he architects and leads some of the most advanced AI red teaming and resilience programs in the world. A two-decade veteran of Silicon Valley, David built his career at the intersection of infrastructure, security, and developer experience before becoming one of the industry’s most trusted voices on AI risk.

He pioneered Discovery, one of the first and largest large-scale AI Red Teaming platforms deployed across governments and Fortune 100 companies. His work has shaped how organizations probe, stress-test, and harden generative models against real adversaries, operational failures, and emergent behavior.

David’s expertise is sought globally. He has briefed the U.S. Congress, the White House, U.K. Parliament, NATO, Korea AISI, UK AISI, Qatar NCSA, and senior public-sector leaders on AI risk, misuse, and national resilience. He is a founding member of OWASP AIVSS and a core member of AIUC-1, the industry consortium defining how enterprises evaluate, insure, and underwrite AI systems. He also contributes to collaborative defense efforts such as CISA’s JCDC.AI series on AI-driven cyber threats.

Before Scale, David shaped platform security and engineering culture at Uber, DoorDash, and Nest Labs, where he built systems and practices that scaled to thousands of engineers. Across his career, he has been recognized for turning fragmented engineering environments into resilient, high-trust, high-standards organizations.

Today, David helps companies bridge the gap between rapid AI innovation and enterprise-grade safety. His mission is simple: align technology with the future of the business, and ensure that AI systems are deployed responsibly, securely, and with confidence.

David Campbell is Head of AI Security at Scale AI, where he architects and leads some of the most advanced AI red teaming and resilience programs in the world. A two-decade veteran of Silicon Valley, David built his career at the intersection of infr... Show more

James Eastham

James Eastham

James Eastham is a Serverless Developer Advocate at Datadog, AWS Community Builder and a Microsoft MVP. He answered phones in front-line support, administered databases and developed modern application backends with a range of technologies. He worked AWS working with some of the biggest companies on the planet, migrating workloads from data centers into the cloud and modernizing in the process.

James produces content on YouTube focused on architecting and building applications with serverless technologies using .NET and Rust. He also has a strong interest in and expertise in event-driven architecture and building more loosely coupled systems.

James Eastham is a Serverless Developer Advocate at Datadog, AWS Community Builder and a Microsoft MVP. He answered phones in front-line support, administered databases and developed modern application backends with a range of technologies. He worked... 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.