Most Active Speakers 2025

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

  • 1128 speakers
  • Auto-generated
Vitalija Bartusevičiūtė

Vitalija Bartusevičiūtė

Vitalija thrives on turning complex data into actionable insights. For her PhD she spent years in a lab collecting data on fish, and gained a deep understanding on science-grade quantitative analytics. Today she work as a business analytics consultant using Microsoft technology, primarily Azure Databricks. She loves to talk about data and exchange best practices. When not at work you can her working on her next ceramics project.

Vitalija thrives on turning complex data into actionable insights. For her PhD she spent years in a lab collecting data on fish, and gained a deep understanding on science-grade quantitative analytics. Today she work as a business analytics consultan... Show more

Daniel Hutmacher

Daniel Hutmacher

SQL Server developer for 25-odd years, Microsoft Data Platform MVP, Redgate Community Ambassador, organizer of Data Saturday Stockholm and Stockholm SQL, volunteer/co-organizer of GroupBy.org. I still occasionally blog at sqlsunday.com.

SQL Server developer for 25-odd years, Microsoft Data Platform MVP, Redgate Community Ambassador, organizer of Data Saturday Stockholm and Stockholm SQL, volunteer/co-organizer of GroupBy.org. I still occasionally blog at sqlsunday.com. Show more

Courtney Yatteau

Courtney Yatteau

Courtney Yatteau is a Developer Advocate on Esri's Developer Experience Team, where she helps developers build better web applications with modern JavaScript tools, libraries, and mapping technology. Before Esri, she taught computer science and mathematics, which shaped her approach to making technical concepts clear, approachable, and visual.

Courtney Yatteau is a Developer Advocate on Esri's Developer Experience Team, where she helps developers build better web applications with modern JavaScript tools, libraries, and mapping technology. Before Esri, she taught computer science and mathe... Show more

Kenny (Baas) Schwegler

Kenny (Baas) Schwegler

I believe in collaborative software design where 'every voice shapes the software'. Leveraging a domain-driven design approach with Team Topologies, I facilitate clearer communication between stakeholders and software creators by collaborative modelling and deep democracy, decoding complexities, resolving conflicts and ensuring software remains agile to business demands.

As Software Architect Enabler at DHL eCommerce and independent trainer and facilitator specialising in technical leadership, software architecture, and sociotechnical system design, I work with organisations and teams to design sustainable and resilient software architecture. I also co-authored Collaborative Software Design: How to Facilitate Domain Modeling Decisions and organise the Virtual Domain-Driven Design community to share these ideas more widely.

I believe in collaborative software design where 'every voice shapes the software'. Leveraging a domain-driven design approach with Team Topologies, I facilitate clearer communication between stakeholders and software creators by collaborative modell... Show more

Carla Cañagueral Rosell

Carla Cañagueral Rosell

With 6 years of experience in Power BI, I am focused on data modeling and storytelling to create dynamic and effective dashboards. Graduated in Applied Statistics and with a master's degree in Big Data, I am passionate about technology and continuous learning.

With 6 years of experience in Power BI, I am focused on data modeling and storytelling to create dynamic and effective dashboards. Graduated in Applied Statistics and with a master's degree in Big Data, I am passionate about technology and continuous... Show more

Gregor Reimling

Gregor Reimling

Gregor Reimling is a Microsoft MVP in Azure and Security, and Chief Azure Technologist at adesso SE. He leads technical strategy and implementation for Azure, focusing on enterprise-scale architectures, cloud security, governance, hybrid environments, and migration.
Gregor is a passionate community advocate, regularly speaking at international Microsoft and community conferences. He runs a popular Azure blog and co-hosts the Cloud Inspires podcast. He is the founder of the Azure Bonn Meetup, a thriving user group with over 1,000 members, and co-founder of the Cloud Identity Summit, an annual event focused on identity and security.
As a Microsoft Certified Trainer, Gregor empowers professionals through hands-on training and mentorship, helping organisations maximise their cloud potential.

Gregor Reimling is a Microsoft MVP in Azure and Security, and Chief Azure Technologist at adesso SE. He leads technical strategy and implementation for Azure, focusing on enterprise-scale architectures, cloud security, governance, hybrid environments... Show more

Philip Seamark

Philip Seamark

Phil Seamark works on the Microsoft Fabric CAT team and is an accomplished database and business intelligence (BI) professional. Phil has an in-depth knowledge of the Microsoft BI stack along with extensive knowledge of data warehouse (DW) methodologies and enterprise data modelling.

Phil has expert knowledge in all facets of BI/DW including planning architecture, project management, dimensional modelling, performance tuning, ETL design, development and optimisation, report and dashboard design as well as installation and administration.
Phil has written several books DAX and Data modelling and has also blogged extensively at dax.tips

Phil Seamark works on the Microsoft Fabric CAT team and is an accomplished database and business intelligence (BI) professional. Phil has an in-depth knowledge of the Microsoft BI stack along with extensive knowledge of data warehouse (DW) methodolog... Show more

Geert van der Cruijsen

Geert van der Cruijsen

Geert van der Cruijsen is the CEO of Zure Netherlands, helping companies improve how they build software by combining strong engineering culture with modern technology. He focuses on DevOps, cloud-native development, architecture and AI, enabling teams to work more autonomously and deliver faster through smart platforms and better ways of working. Geert is a long-time Microsoft MVP and an active member of the tech community, frequently sharing knowledge through talks, content and mentorship.

Geert van der Cruijsen is the CEO of Zure Netherlands, helping companies improve how they build software by combining strong engineering culture with modern technology. He focuses on DevOps, cloud-native development, architecture and AI, enabling tea... Show more

Giulio Sciarappa

Giulio Sciarappa

Enterprise architect with multiple job experiences in different fields, from banking to aerospace, with a spice of DevOps and other less known methodologies

Enterprise architect with multiple job experiences in different fields, from banking to aerospace, with a spice of DevOps and other less known methodologies Show more

Karinne Bessette

Karinne Bessette

Part technologist, part educator, part community organizer—Karinne Bessette operates at the intersection of enterprise security, hands-on learning, and human connection.
In their role as Technical Storyteller in Veeam's Office of the CTO, they specialize in Microsoft 365 security and backup strategy, develop thought leadership content, and present at conferences worldwide. Their speaking portfolio spans M365 administration, Power Automate, Copilot, AI agents, Adaptive Cards, adoption strategy, and workplace culture—with live demos, because they believe the best way to learn is by doing.
A Microsoft MVP, MCT Alumni, and Object First Ace with 10+ certifications, they also teach courses at Knox Technical Center and participate in Education Advisory Boards. They run the Women in M365 Book club and co-organize the Columbus Microsoft Teams User Group—because building community is as important as building solutions.
(See more: https://linktr.ee/rinbytes).

Part technologist, part educator, part community organizer—Karinne Bessette operates at the intersection of enterprise security, hands-on learning, and human connection. In their role as Technical Storyteller in Veeam's Office of the CTO, they speci... 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

Gerald Versluis

Gerald Versluis

Meet Gerald Versluis, software engineer at Microsoft, who wields the power of .NET to conquer any project that comes his way. With a career spanning over a decade, he's tackled it all, from frontend to backend and everything in between, using .NET MAUI, Azure, ASP.NET, and all the other .NET goodies. And these days of course; AI and Copilot.

But it wasn't until he discovered the magic of Xamarin that he truly fell in love with mobile and cross-platform development, becoming an active community member and sharing his knowledge through writing, tweeting, and presentations. When he's not saving the world of software, you can find him on Twitter @jfversluis, blogging at https://blog.verslu.is, or making videos on his YouTube channel: https://youtube.com/GeraldVersluis.

Meet Gerald Versluis, software engineer at Microsoft, who wields the power of .NET to conquer any project that comes his way. With a career spanning over a decade, he's tackled it all, from frontend to backend and everything in between, using .NET MA... Show more

Hannes Lowette

Hannes Lowette

Hannes is a developer, a coach and a father of 3.

In software development, he has always had a passion for performance, databases, distributed systems and large scale applications. He's always weighing every solution's benefits against its drawbacks, reducing friction where possible.

As a coach, he is enthusiastic about knowledge sharing, personal growth and building careers. Building a company culture around learning is what gets him out of bed.

In his free time, when he’s not building LEGO® castles with his kids, he likes to spend time building guitars, playing chess, mountain biking and doing all round geeky stuff.

You can often find him on stage at the conference afterparty, especially as the guitarist of Dylan Beattie & the Linebreakers.

Hannes is a developer, a coach and a father of 3. In software development, he has always had a passion for performance, databases, distributed systems and large scale applications. He's always weighing every solution's benefits against its drawbac... Show more

Angela Velasco Perea

Angela Velasco Perea

I’m a Software Engineer specializing in web development, AI, and automation. I’m passionate about creating practical, accessible, and beautifully designed technology that simplifies processes and helps people and businesses work smarter.

I’m a Software Engineer specializing in web development, AI, and automation. I’m passionate about creating practical, accessible, and beautifully designed technology that simplifies processes and helps people and businesses work smarter. Show more

Roelant Dieben

Roelant Dieben

With over 20 years of experience developing software on the Microsoft stack, Roelant Dieben has a lot to share about stuff that has been obsolete for years. At Sopra Steria he is helping companies with their Azure cloud and AI challenges, he is a Microsoft Azure & AI MVP, and has a passion for machine learning & AI and application lifecycle management.

With over 20 years of experience developing software on the Microsoft stack, Roelant Dieben has a lot to share about stuff that has been obsolete for years. At Sopra Steria he is helping companies with their Azure cloud and AI challenges, he is a Mic... Show more

Emanuele Bartolesi

Emanuele Bartolesi

I'm a GitHub Technical Lead, and I'm passionate about front-end technologies and everything related to the cloud, especially Microsoft Azure.
I live in Zurich and actively participate in local and international community activities and events.

I share my love for technology through my blog https://www.emanuelebartolesi.com.
I also became a Twitch Affiliate as a live coder, and you can follow me at https://twitch.tv/kasuken to write some code together.

Microsoft MVP (12x)
GitHub Star ⭐ (4x)
GitHub Star of the Year 2023

I'm a GitHub Technical Lead, and I'm passionate about front-end technologies and everything related to the cloud, especially Microsoft Azure. I live in Zurich and actively participate in local and international community activities and events. I ... Show more

Aicha Laafia

Aicha Laafia

Aicha Laafia, a Java software engineer at SQLI with a love for coding, an interest in sustainability, and a commitment to empowering women in tech.

I am a Women Techmakers and Girls Code ambassador, an Oracle ACE Associate, a member of the Moroccan Association of Computing Science, and part of the JetBrains Community Contributor program.

I focus on creating software with minimal environmental impact while mentoring and supporting women in technology.

When I’m not coding, I enjoy exploring delicious food, phone photography, and watching Formula 1.

Aicha Laafia, a Java software engineer at SQLI with a love for coding, an interest in sustainability, and a commitment to empowering women in tech. I am a Women Techmakers and Girls Code ambassador, an Oracle ACE Associate, a member of the Morocca... Show more

Antonio José Soto Rodriguez

Antonio José Soto Rodriguez

After more than 25 years managing information systems, mainly in Microsoft environments, with special focus on Business Intelligence systems and data management, I am now more focused on the management of teams and sales. Always looking for new challenges to help our customers optimize their investments in their data platform. Right now focused on Big data, Smart data and IA technologies in order to define new lines of business

After more than 25 years managing information systems, mainly in Microsoft environments, with special focus on Business Intelligence systems and data management, I am now more focused on the management of teams and sales. Always looking for new chall... Show more

Roman Tesolkin

Roman Tesolkin

Data Adventurer | Power BI Enthusiast | Microsoft Fabric & Databricks Certified Data Engineer

Sharing Insights and Empowering Through Data! Based in Frankfurt am Main, originally from Ukraine

Data Adventurer | Power BI Enthusiast | Microsoft Fabric & Databricks Certified Data Engineer Sharing Insights and Empowering Through Data! Based in Frankfurt am Main, originally from Ukraine Show more

Jean-Philippe Lesage

Jean-Philippe Lesage

I'm an independent cybersecurity architect, focusing primarily on Microsoft security solutions. I hold the CISSP and C|CISO certifications, and I'm a Microsoft MVP (SIEM & XDR) and a Microsoft Certified Trainer (MCT).
I previously spent 25 years at Microsoft in a variety of technology roles.

I'm an independent cybersecurity architect, focusing primarily on Microsoft security solutions. I hold the CISSP and C|CISO certifications, and I'm a Microsoft MVP (SIEM & XDR) and a Microsoft Certified Trainer (MCT). I previously spent 25 years at ... Show more

Jigyasa Grover

Jigyasa Grover

12-time award-winning AI visionary and 'Sculpting Data For ML' author Jigyasa Grover drives rider personalization innovation at Uber after transforming Twitter/X, Facebook/Meta, Faire, and Bordo AI with large-scale ML systems. Handpicked by Google for their I/O keynote, she serves on Google's Developer Advisory Board while advising social search engine Diem and other Silicon Valley startups.

As a sought-after LinkedIn Learning instructor, Jigyasa educates thousands of professionals worldwide on cutting-edge AI-powered applications and agentic AI systems, solidifying her status as a thought leader in artificial intelligence education. As a Google Developer Expert, Women Techmaker Ambassador, and World Economic Forum Global Shaper, Jigyasa has also been featured in Business Insider, VentureBeat, and International Business Times, and has elevated panels with Harvard University, Preston-Werner Ventures, Norwegian Business School, Humanitarian Frontier in AI, Women in Data, and more to her name.

The UC San Diego alumna has secured funding from the Canadian and Norwegian governments, the Linux Foundation, and multiple tech giants, enabling work that transcends geographical boundaries. With 200+ media features and contributions to open source recognized by Apache and Python Software Foundations, she mentors next-generation talent while shaping AI's future through advisory roles at Bezoku AI, Las Positas College, and various AI forums.

12-time award-winning AI visionary and 'Sculpting Data For ML' author Jigyasa Grover drives rider personalization innovation at Uber after transforming Twitter/X, Facebook/Meta, Faire, and Bordo AI with large-scale ML systems. Handpicked by Google fo... 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

Mitul Tailor

Mitul Tailor

I am a Microsoft Certified Trainer (MCT) and Senior Data & AI Engineer at Long View Systems, specializing in Azure services, data engineering, and AI-driven solutions. I work extensively with Azure Data Factory, Microsoft Fabric, Copilot Studio, and enterprise data migration, delivering scalable and efficient production-grade data platforms.

I hold a Post Graduate Certificate in Generative AI, a PG Diploma in ML & AI, and a Bachelor’s degree in Computer Science. I am DP-600 and AI-102 certified, with strong expertise in Microsoft Azure data and AI solutions. I also have hands-on experience with Retrieval-Augmented Generation (RAG) and Azure AI Foundry, applying these technologies to build intelligent automation and insight-driven systems.

Recognized by clients for clear, precise solution delivery and technical communication, I am passionate about automation, AI, and robotics. Outside of work, I enjoy traveling and have a strong interest in cars.

I am a Microsoft Certified Trainer (MCT) and Senior Data & AI Engineer at Long View Systems, specializing in Azure services, data engineering, and AI-driven solutions. I work extensively with Azure Data Factory, Microsoft Fabric, Copilot Studio, and ... Show more

David Drever

David Drever

David is an Associate Director with Protiviti Canada and a 10-time Microsoft 365 & Security MVP with 25 years of experience working within information technology. For 20 years, David has assisted organizations to collaborate efficiently and effectively within SharePoint and Microsoft 365. David assists companies to understand their compliance needs and how to protect their data. He has helped organizations build data protection programs to safeguard their most sensitive information while ensuring the business can collaborate and work with their content. Over the past 25 years, David has built a great deal of experience in a wide variety of areas in IT, ranging from Desktop\Server support to development in C++ and .NET technologies. He has added value to many clients in several sectors, including utilities, government, banking, and agriculture.

David is a knowledgeable and sought-after international speaker within IT circles and is consulted regularly by companies formulating their digital workplace strategies and compliance platforms.

David blogs at http://daviddrever.com

David is an Associate Director with Protiviti Canada and a 10-time Microsoft 365 & Security MVP with 25 years of experience working within information technology. For 20 years, David has assisted organizations to collaborate efficiently and effective... Show more

Vivian Voss

Vivian Voss

Vivian Voss is a Microsoft Business Applications and M365 MVP who loves to help organizations transform their processes with Dynamics 365 and Power Platform. Vivian has around 10 years of experience in creating solutions within the Dynamics 365 suite and extending it with the tools from the Power Platform. She is also a co-organizer of various user groups and a frequent speaker at community events.

Vivian Voss is a Microsoft Business Applications and M365 MVP who loves to help organizations transform their processes with Dynamics 365 and Power Platform. Vivian has around 10 years of experience in creating solutions within the Dynamics 365 suite... Show more

Sarah Wimberley

Sarah Wimberley

Sarah F. Wimberley is a strategic technology executive with a multidisciplinary background spanning enterprise architecture, technology consulting, AI governance, privacy, and organizational strategy. She has a proven ability to develop enterprise roadmaps, guide executive decision-making, and lead cross-functional transformation initiatives that balance innovation, compliance, and customer trust. Sarah brings a collaborative leadership style, strong business acumen, and extensive experience communicating complex technical concepts to executives, boards, and diverse stakeholder groups.

A graduate of Rosemont College with a Master’s in Strategic Leadership, Sarah is also an active volunteer, serving on various boards and committees, including as President of Village on the Ridge and a Co-Leader and Higher Award Coach for the Girl Scouts of Eastern Pennsylvania.

Sarah F. Wimberley is a strategic technology executive with a multidisciplinary background spanning enterprise architecture, technology consulting, AI governance, privacy, and organizational strategy. She has a proven ability to develop enterprise ro... Show more

Daniel Patkos

Daniel Patkos

I began my career as a business and technology consultant, quickly transitioning into implementation and BI development. I’ve used several BI tools along the way - Tableau, Domo, and Spotfire - but Power BI has been the core of my work for many years.

My focus started with data visualization and clear data communication, and has grown to include data architecture and development practices. I’m currently working with Microsoft Fabric and promoting the use of source control and CI/CD to improve the Power BI development lifecycle.

I began my career as a business and technology consultant, quickly transitioning into implementation and BI development. I’ve used several BI tools along the way - Tableau, Domo, and Spotfire - but Power BI has been the core of my work for many years... Show more

Andrii Raikov

Andrii Raikov

Andrii has a total of 18 years of software engineering experience and has been very passionate about Go for the past 8 years. Over the past 6 years at Delivery Hero, he has adeptly harnessed Golang, excelling in constructing high-load applications, leveraging Golang's concurrency capabilities to engineer scalable solutions that optimise performance and handle substantial data processing tasks.

Andrii has a total of 18 years of software engineering experience and has been very passionate about Go for the past 8 years. Over the past 6 years at Delivery Hero, he has adeptly harnessed Golang, excelling in constructing high-load applications, l... Show more

Renato Romão de Souza

Renato Romão de Souza

6x Microsoft Most Valuable Professional (MVP) – Business Applications & Azure AI
5x Microsoft Certified Trainer (MCT)

🔧 Expertise & Experience:
With over 11+ years of experience developing Microsoft 365 solutions and 8+ years of Power Platform development, I am passionate about crafting innovative solutions that enhance productivity, improve management, and unlock business value for organizations. My team was recognized as the World’s Best Microsoft Project and Portfolio Management Partner in 2020, a testament to our commitment to excellence.

📢 Community Leader & Educator:
For over 8 years, I have been intensely involved in the tech community, creating impactful content focused on driving innovation in technology, with a strong emphasis on Artificial Intelligence. Through these efforts, I’ve shared knowledge, empowered individuals, and contributed to the growth of professionals in this rapidly evolving field. My dedication has also led to teaching over 12,000 students and building a YouTube channel with 11,000+ subscribers.

🌍 Global Impact:
As an expert trainer, I’ve delivered sessions in 10+ countries, sharing insights and practical guidance on Microsoft technologies. My mission is to democratize technology and inspire others to innovate with tools like Copilot, AI Builder, Azure AI, and Power Platform.
A few highlights:
- CollabDays New England 2024 (United States)
- CollabDays Porto 2024 (Portugal)
- Directions EMEA 2024 (Austria)
- aMP Bordeaux 2024 (France)
- ColorCloud Hamburg 2025 (Germany)
- North America MCT Summit 2025 (United States)
- Power Platform Community Conference 2025 (United States)
- CollabDays Finland 2025 (Finland)
- CollabDays Madrid 2025 (Spain)
- Days of Knowledge Nordic 2025 (Denmark)
- ESPC Conference 2025 (Ireland)
- Cloud Tech Tallinn 2026 (Estonia)

6x Microsoft Most Valuable Professional (MVP) – Business Applications & Azure AI 5x Microsoft Certified Trainer (MCT) 🔧 Expertise & Experience: With over 11+ years of experience developing Microsoft 365 solutions and 8+ years of Power Platform ... Show more

Peter Eijgermans

Peter Eijgermans

Peter Eijgermans is a long-time software developer and an adventurous and passionate CodeSmith Frontend at Sopra Steria. He likes to travel around the world with his bike. Always seeking for the unexpected and unknown. For his job he tries out the latest techniques and frameworks. He loves to share his experience by speaking at conferences all over the World and writing for the Dutch Java magazine, Medium and DZone. He believes that you as the front-end developer are the spider in the web to bring the user, the team and the product together.

Peter Eijgermans is a long-time software developer and an adventurous and passionate CodeSmith Frontend at Sopra Steria. He likes to travel around the world with his bike. Always seeking for the unexpected and unknown. For his job he tries out the la... 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.