Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Mete Atamel

Mete Atamel

I’m a Software Engineer and a Developer Advocate at Google in London. I build tools, demos, tutorials, and give talks to educate and help developers to be successful on Google Cloud.

I’m a Software Engineer and a Developer Advocate at Google in London. I build tools, demos, tutorials, and give talks to educate and help developers to be successful on Google Cloud. Show more

María Soto Castro

María Soto Castro

Apasionada de la tecnología y del marketing, actualmente, obsesionada con Chat GPT.
GlobalAI Bootcamp | W4TT

Apasionada de la tecnología y del marketing, actualmente, obsesionada con Chat GPT. GlobalAI Bootcamp | W4TT Show more

Avindra Fernando

Avindra Fernando

Avindra Fernando is a software consultant with over 13 years of experience helping teams build scalable, modern web applications. In 2021, he founded Taprobane Consulting to guide clients through architectural decisions, migrations to newer tech stacks, and the implementation of robust AI-powered development and testing strategies that ensure quality and performance.

He actively mentors engineering teams, leads workshops, and delivers hands-on training. As a regular speaker at tech conferences, Avindra shares practical lessons on concepts and technologies such as Software Architecture, AI-driven development, React, Next.js, E2E Testing, and TypeScript. He leverages his experience to shape future technology direction and accelerate the growth of companies across industries.

Avindra Fernando is a software consultant with over 13 years of experience helping teams build scalable, modern web applications. In 2021, he founded Taprobane Consulting to guide clients through architectural decisions, migrations to newer tech stac... Show more

Sam Debruyn

Sam Debruyn

Sam Debruyn is a Microsoft Data Platform MVP and Data Platform Architect passionate about modern data platforms such as Microsoft Fabric. In his day-to-day, he designs and implements data platforms that support customers in harvesting the full potential of their data. Sam has over 10 years of experience with Microsoft Azure and often blogs about his adventures in data. He contributes to the data community through blog posts, open-source projects, and speaking engagements at data meetups and conferences.

Sam Debruyn is a Microsoft Data Platform MVP and Data Platform Architect passionate about modern data platforms such as Microsoft Fabric. In his day-to-day, he designs and implements data platforms that support customers in harvesting the full potent... Show more

Smita Nachan

Smita Nachan

As a M365 Architect, I leverage my 16+ years of experience and multiple certifications to design, implement, and maintain large-scale projects using SharePoint and Office 365. I am a Certified ScrumMaster (CSM), a Microsoft MVP in two categories (M365 and AI Platform).

My mission is to help clients achieve their business goals and optimize their digital transformation journey using the latest technologies and best practices. I am passionate about sharing my knowledge and expertise with the community, and I frequently speak at various events, such as SPS, Global Microsoft 365 Developer Bootcamp, and Global Power Platform Bootcamp. I am also an author, speaker, and organizer of several books, blogs, podcasts, and webinars on M365 topics.

As a M365 Architect, I leverage my 16+ years of experience and multiple certifications to design, implement, and maintain large-scale projects using SharePoint and Office 365. I am a Certified ScrumMaster (CSM), a Microsoft MVP in two categories (M36... 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

Paul Andrew

Paul Andrew

Paul (AKA @mrpaulandrew) is the Co-Founder & CTO of Cloud Formations, a specialist data consultancy based in the UK. With nearly 20 years’ experience designing and delivering Microsoft data architectures, Paul leads a passionate team of engineers, supporting businesses small and large with scalable cloud platforms. Business value delivered through data insights. Over the years, Paul has covered the breadth and depth of design patterns and industry leading concepts, including Lambda, Kappa, Delta Lake, Data Mesh and Data Fabric.

Paul is also a Microsoft Data Platform MVP, director for the Data Relay community conference, East Midlands user group leader, book author and mentor. In addition to the day job(s), Paul is a father of three, husband, foodie, runner, blood donor, geek, Lego, and Star Wars fan! Lastly, Paul confesses to enjoying a Ramstein playlist when given half a chance to do some coding for a customer project.

Paul (AKA @mrpaulandrew) is the Co-Founder & CTO of Cloud Formations, a specialist data consultancy based in the UK. With nearly 20 years’ experience designing and delivering Microsoft data architectures, Paul leads a passionate team of engineers, su... 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

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

Antonio Ojea

Antonio Ojea

Antonio Ojea is a Software Engineer at Google, where he works on Kubernetes. He is one of the top contributors of the Kubernetes project, Tech Lead in Kubernetes SIG Network & Testing with a proven track record in leading technical initiatives to enhance Kubernetes networking stability and performance. Enthusiastic advocate for strong testing practices within open-source communities.

Antonio Ojea is a Software Engineer at Google, where he works on Kubernetes. He is one of the top contributors of the Kubernetes project, Tech Lead in Kubernetes SIG Network & Testing with a proven track record in leading technical initiatives to enh... Show more

Jean-Pierre Riehl

Jean-Pierre Riehl

Obsessed by Data, Power BI Fan, Innovation-driven, Business-oriented, Artificially-Intelligent, Community leader, I manage all data-related topics with my team at Cellenza, a consultancy firm in France.
I work for more than 20 years on challenging projects, from web to IoT including a lots of Data and AI.
I am awarded as Data Platform MVP since 2008 and I’m intensively involved in French Communities.

Obsessed by Data, Power BI Fan, Innovation-driven, Business-oriented, Artificially-Intelligent, Community leader, I manage all data-related topics with my team at Cellenza, a consultancy firm in France. I work for more than 20 years on challenging p... Show more

Uwe Ricken

Uwe Ricken

Uwe Ricken has been working with IT systems since the early 1990s, with a deep focus on Microsoft SQL Server starting from his work on Membership Software for the American Chamber of Commerce in Germany - later rolled out across five European countries. His passion for SQL Server took off in 2007 when he joined Deutsche Bank AG as a database administrator, gaining hands-on experience in high-performance, enterprise-scale environments.

With over three decades of experience in database development and operations, Uwe earned the prestigious "Microsoft Certified Master – SQL Server 2008", the highest technical certification at the time. In 2013, he was honored with his first "Microsoft MVP Award" for his contributions to the SQL Server community across Germany and Europe.

Since 2010, Uwe has been sharing his expertise through his blog https://sqlmaster.de, offering deep dives into SQL Server internals, performance tuning, and real-world troubleshooting.

A regular speaker at international conferences and user groups, Uwe’s sessions focus on Database Internals, Indexing Strategies and Advanced SQL Development - always with a practical, performance-driven mindset.

Uwe Ricken has been working with IT systems since the early 1990s, with a deep focus on Microsoft SQL Server starting from his work on Membership Software for the American Chamber of Commerce in Germany - later rolled out across five European countri... Show more

Mathias Halkjaer

Mathias Halkjaer

Mathias is a data enthusiast with a great passion for the synergy between data analytics and cloud data platforms.

As a Senior Director at Inspari he works with building up clients' data capabilities, implementing data platform technologies and all-in-all maximize the impact of their data.

Being a Microsoft Data Platform MVP, he is very passionate about sharing anything with community, especially something around turning data into impact!

With a background in Product Development and Innovation, Mathias brings a unique 'Data Product' perspective to the realm of data architecture, and is obsessed with the bigger picture. With his slightly rebellious attitude, he's not afraid to challenge the status quo and break industry norms to find new and better solutions.

Mathias is a data enthusiast with a great passion for the synergy between data analytics and cloud data platforms. As a Senior Director at Inspari he works with building up clients' data capabilities, implementing data platform technologies and a... Show more

Sara Alonso Bernardo

Sara Alonso Bernardo

- Asturiana, amante de los 📊y de los 😸.
- Microsoft MVP Data Platform & AI Platform.
- Consultora de Data & IA.

Certificada en Microsoft:
- Power BI Data Analyst Associate. PL-300
- Fabric Analytics Engineer Associate. DP-600
- Power Platform App Maker Associate. PL-100
- Azure AI Fundamentals AI-900

- Asturiana, amante de los 📊y de los 😸. - Microsoft MVP Data Platform & AI Platform. - Consultora de Data & IA. Certificada en Microsoft: - Power BI Data Analyst Associate. PL-300 - Fabric Analytics Engineer Associate. DP-600 - Power Platfo... Show more

Deborah Melkin

Deborah Melkin

Deborah Melkin has been working as a database professional with SQL Server for over 20 years. She spends her days helping programmers with all aspects of database design, queries, performance, and deployment. In 2016, she began her blog, Deb the DBA. Soon after that, she began speaking at SQL Saturdays and user groups. Deborah is a co-leader of the Data Platform Women in Tech (WIT) Virtual User Group and co-founder of WITspiration, a WIT mentorship circle. She is a former board member of the New England SQL Server User Group. She was named as One to Watch as part of the #Redgate 100 in 2022 and won Speaker Idol at PASS Summit 2019. Deborah is also a Microsoft MVP for the Data Platform (2020- ).

In her spare time, Deborah can usually be found doing something musical or something geeky with her husband, Andy, and their dog, Sebastian.

Deborah Melkin has been working as a database professional with SQL Server for over 20 years. She spends her days helping programmers with all aspects of database design, queries, performance, and deployment. In 2016, she began her blog, Deb the DBA.... Show more

Régis Schneider

Régis Schneider

Je suis marié, avec 2 enfants (16 & 17 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre !
Le mot que j'apprécie le moins : "Normal".
Un mot que je n'apprécie pas trop : "Bienveillance". Un principe que j'apprécie beaucoup : "Bienveillance".
Sinon, tombé dans Agile en 2009, je ne veux maintenant plus m'en sortir, que ce soit à la maison ou au boulot. Je tente de développer depuis un positionnement de facilitateur, de produit et d’équipe.

Je suis marié, avec 2 enfants (16 & 17 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre ! Le mot que j'apprécie le moins : "Normal". Un mot que je n'apprécie... Show more

Nico Vermeir

Nico Vermeir

Nico Vermeir is a Cloud Solution Architect at Microsoft, where he has a strong focus on application innovation and AI.

Being a strong believer in the importance of communities he tries to share knowledge wherever he can, be it on BlueSky, at a user group or conference. He has spoken on many international conferences such as NDC Oslo, NDC Sydney, NDC London, Swetugg, Build Stuff, DotNext.
Nico is a former Microsoft MVP in Developer Technologies, crew member of Techorama BE and NL and crew member of VISUG, Belgium's largest .NET user group.

In his spare time he enjoys brewing (and tasting) beer, playing the guitar, riding his Harley-Davidson and doing Karate.

Nico Vermeir is a Cloud Solution Architect at Microsoft, where he has a strong focus on application innovation and AI. Being a strong believer in the importance of communities he tries to share knowledge wherever he can, be it on BlueSky, at a use... 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

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

Baptiste Macé

Baptiste Macé

Ingénieur logiciel animé par l’ambition d’apporter un regard neuf à chaque mission, mon expertise réside dans l’identification des "pain points" et la mise en œuvre de solutions pérennes et adaptées. Axé sur le client, je crois fermement que le logiciel doit être un outil au service des utilisateurs, tout en respectant les enjeux sociaux et environnementaux.
Écologiste convaincu, je m’efforce de réduire l’impact environnemental des projets numériques que je conduis, intégrant les pratiques de green IT comme un levier stratégique et éthique. J’aspire à développer des solutions responsables, en valorisant l’efficience et la durabilité à toutes les étapes du cycle de vie logiciel.
En parallèle, mon engagement humaniste se traduit par une demi-journée hebdomadaire dédiée à des actions sociales. Je suis persuadé que la technologie, couplée à une approche bienveillante, peut être un puissant vecteur de progrès et de solidarité.

Ingénieur logiciel animé par l’ambition d’apporter un regard neuf à chaque mission, mon expertise réside dans l’identification des "pain points" et la mise en œuvre de solutions pérennes et adaptées. Axé sur le client, je crois fermement que le logic... Show more

Ryan Ververs-Bijkerk

Ryan Ververs-Bijkerk

Ryan is a self-employed Technologist at GO-INIT focused on the EUC and Code area. Ryan is primarily focusing on the user experience in centralized desktop environments. With his development skills, Ryan is capable of adapting quickly to customers’ needs by having an agile mindset. Ryan is a bit lazy, yes lazy but in a good way. Ryan is all about automation as he is not made for repeating tasks.

Community is very important for Ryan as he is an active blogger and has published multiple tools. Next, to his personal blogs and tools, Ryan is also a member of the Remote Display Analyzer team and TeamRGE. Ryan has been awarded the Microsoft Most Valuable Professional (MVP), Citrix Technology Professional (CTP), NVIDIA vGPU Community Advisor (NGCA), Parallels VIPP and VMware vExpert status.

If you ever meet Ryan you can always do him a pleasure buying a beer because he loves beer.

Ryan is a self-employed Technologist at GO-INIT focused on the EUC and Code area. Ryan is primarily focusing on the user experience in centralized desktop environments. With his development skills, Ryan is capable of adapting quickly to customers’ ne... Show more

Osita Ifezue

Osita Ifezue

Osita Ifezue is a researcher, international keynote speaker, and storytelling strategist. He is the founder of Njiko Storytelling, with over 25 years of experience training individuals and developing storytelling strategies. He has created the Storyboard Backcasting and Origin Story-Loop Strategic Frameworks, strategic storytelling tools designed to enhance learning in the storytelling process. Beyond entrepreneurship, Osita founded Entergrate, an NGO in Finland that focuses on social inclusion, and he hosts the podcast Think About It! With Osita Ifezue.

Osita Ifezue is a researcher, international keynote speaker, and storytelling strategist. He is the founder of Njiko Storytelling, with over 25 years of experience training individuals and developing storytelling strategies. He has created the Storyb... Show more

Cathrine Bruvold

Cathrine Bruvold

Microsoft Business Applications MVP in Power Apps.

Power Platform enthusiast and solution architect with great passion for building and developing functional & aestethic Power Apps ✨

Microsoft Business Applications MVP in Power Apps. Power Platform enthusiast and solution architect with great passion for building and developing functional & aestethic Power Apps ✨ Show more

Oktay Sari

Oktay Sari

“My name is Oktay Sari and I live in Hoofddorp, the Netherlands. I am happily married with 2 children and our dog Lucy. I like to read a good book, have a nice BBQ and enjoy a delicious craft beer with friends and family. The little things in life matter the most to me”

Oktay has been working as an IT specialist since 1997 and has fulfilled various roles over the years.. For the past 9+ years, he has honed his skills in Endpoint management, Microsoft Intune and all things Security. In 2022 he received the Microsoft Most Valuable Professional (MVP) award in the Security (Intune) category for his community contributions and thought leadership.

With the growing prevalence of macOS in corporate settings, his current focus is on leveraging Microsoft Intune's capabilities to ensure robust and efficient management of macOS devices.

“My name is Oktay Sari and I live in Hoofddorp, the Netherlands. I am happily married with 2 children and our dog Lucy. I like to read a good book, have a nice BBQ and enjoy a delicious craft beer with friends and family. The little things in life ma... Show more

Cortney Nickerson

Cortney Nickerson

Cortney Nickerson is the Head of Community at Nirmata and a CNCF Ambassador. She is highly active in the cloud native community, co-organizing the CNCF Bilbao Community and various Kubernetes Community Days, serving on the State of OpenCon Advisory Board, and co-hosting the "Code to Culture Platform Engineering Podcast" and "PolicyBytes" podcast.

A recognized speaker at international events, Cortney transitioned from a non-technical background to tech as an early employee (#7) at a startup later acquired by DataDog, where she wrote content for the Data on Kubernetes Community.

Beyond technology, she is a vocal advocate for DEI (Diversity, Equity, and Inclusion) and openly shares her experiences with imposter syndrome. On a personal note, she's also a parent navigating the challenge of getting her kids to bed on time.

Cortney Nickerson is the Head of Community at Nirmata and a CNCF Ambassador. She is highly active in the cloud native community, co-organizing the CNCF Bilbao Community and various Kubernetes Community Days, serving on the State of OpenCon Advisory B... Show more

Corrado De Bari

Corrado De Bari

I’m a Developer Evangelist in Oracle’s Database Organization, focused in building Generative AI platforms that harness DBMS AI capabilities, while also championing their adoption as an evangelist. I work on the Kubernetes-based deployment platform for AI microservices, "Oracle Backend for Microservices and AI", and I’m leading the development of the "AI Optimizer and Toolkit" —a low-code platform that empowers developers to design and fine-tune AI Agents using Oracle’s Vector Store.
In Oracle Italy since 2010, he joined Technology Sales Consulting team, working on Italian large and medium accounts on OCI, AI/ML, DataLakes and BPM/SOA platforms. Formerly Sales Engineer at Sun Microsystems, as well as Java & Software Ambassador for Italy, starting his career as architect in Telecom Italia Mobile. He holds the CEFRIEL Master in Information Technology and a bachelor's degree in Computer Science.

I’m a Developer Evangelist in Oracle’s Database Organization, focused in building Generative AI platforms that harness DBMS AI capabilities, while also championing their adoption as an evangelist. I work on the Kubernetes-based deployment platform fo... Show more

Jacqui Read

Jacqui Read

Jacqui Read is an internationally-recognised architect, and author of Communication Patterns: A Guide for Developers and Architects. She works across the public and private sector at Made Tech, helping customers to architect systems and determine direction in complex environments. Jacqui is a keynote speaker at international conferences, covering topics such as software design, architecture practices, and technical communication. 

Her professional interests include collaborative modelling, knowledge management, Domain-Driven Design, sociotechnical architecture, and modernising enterprise architecture practices. Her personal website is https://jacquiread.com.

Jacqui Read is an internationally-recognised architect, and author of Communication Patterns: A Guide for Developers and Architects. She works across the public and private sector at Made Tech, helping customers to architect systems and determine dir... Show more

Lotte Pitcher

Lotte Pitcher

Lotte Pitcher has been building websites with Microsoft technologies for longer than she cares to remember. She ran a web development agency in London and is now Head of the Developer Relations team at Umbraco, where she helps maintain a successful open-source project while engaging with its dedicated global community.

As a Microsoft MVP and a long-time open-source contributor, Lotte organises meetups, hackathons and conferences, speaks at events and releases software. She is a passionate advocate for active participation in tech communities and aims to create inclusive, safe and welcoming spaces - both in-person and virtual - where everyone can learn, collaborate and thrive.

Lotte Pitcher has been building websites with Microsoft technologies for longer than she cares to remember. She ran a web development agency in London and is now Head of the Developer Relations team at Umbraco, where she helps maintain a successful o... 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

Jason Bell

Jason Bell

Jason Bell is a digital transformation leader with expertise in business architecture, emerging technologies, and guiding organizations through complex digital initiatives. With a background in both strategic vision and hands-on execution, he brings a unique blend of technical and business acumen, empowering teams to leverage cutting-edge solutions that drive efficiency and growth.

Jason Bell is a digital transformation leader with expertise in business architecture, emerging technologies, and guiding organizations through complex digital initiatives. With a background in both strategic vision and hands-on execution, he brings ... 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.