Most Active Speakers 2025

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

  • 1126 speakers
  • Auto-generated
Femke Cornelissen

Femke Cornelissen

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in Microsoft Teams and various on- and offline events.

Femke is also a Microsoft 365 blogger with only Dutch content. Her goal is to organize, speak and attend conferences to learn, connect and share knowledge with others.

Find out more at www.femkecornelissen.com

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in... Show more

Niall Merrigan

Niall Merrigan

Niall is an Irish guy who managed to end up in Norway after finding out the country existed when he was in New Zealand. He works at Microsoft helping customers with their technology investments. He has very strong opinions on security, web tech, food and wine.

Niall is an Irish guy who managed to end up in Norway after finding out the country existed when he was in New Zealand. He works at Microsoft helping customers with their technology investments. He has very strong opinions on security, web tech, food... Show more

Christian Weyer

Christian Weyer

Christian Weyer is Co-Founder and CTO of Thinktecture AG and a catalyst for new technologies with a strong focus on the practical implementation of Generative AI in modern software solutions. With 30 years of experience in software engineering, he advises ISVs and enterprises across industries on how to efficiently integrate LLMs and advanced AI technologies into real-world applications.
As a cross-vertical AI technology advisor, Christian bridges strategy and execution — helping organizations move Generative AI from theory into productive practice. He is a passionate international speaker, sharing hands-on insights at conferences and events worldwide.
Christian is a Microsoft MVP for AI and a Google Developer Expert (GDE) for Web AI, maintaining close relationships with the product teams in Redmond and Mountain View.

Christian Weyer is Co-Founder and CTO of Thinktecture AG and a catalyst for new technologies with a strong focus on the practical implementation of Generative AI in modern software solutions. With 30 years of experience in software engineering, he ad... 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

Anshika Tiwari

Anshika Tiwari

Anshika is a passionate DevOps/SRE Engineer who is always eager to learn & implement cloud-native solutions, she has contributed to streamlining deployment processes and enhancing system reliability. She is eager to share her experiences and insights at conferences, contributing to the open-source community through talks, mentorship, and collaboration.

Anshika is a passionate DevOps/SRE Engineer who is always eager to learn & implement cloud-native solutions, she has contributed to streamlining deployment processes and enhancing system reliability. She is eager to share her experiences and insights... Show more

Fabrice Bloch

Fabrice Bloch

Statisticien public, agiliste militant, formateur en design-thinking et en leadership

Statisticien public, agiliste militant, formateur en design-thinking et en leadership Show more

Andrew Pruski

Andrew Pruski

Andrew is a Microsoft Data Platform MVP and Docker Captain who helps organise Data Ceili and EightKB.

He is interested in all things database/kubernetes/container related and shares his passion for these topics by speaking at events across the world.

Originally from Wales but now exploring Ireland.

You can find him on Bluesky @dbafromthecold.com and blogging at dbafromthecold.com

Andrew is a Microsoft Data Platform MVP and Docker Captain who helps organise Data Ceili and EightKB. He is interested in all things database/kubernetes/container related and shares his passion for these topics by speaking at events across the wor... Show more

Stefan Rapp

Stefan Rapp

Stefan is a Principal Cloud Solution Architect (CSA) at Xebia Germany and a Microsoft MVP for Azure Infrastructure as Code and Azure Networking. He supports enterprise organizations in designing scalable, secure, and automated Azure platforms. His expertise includes cloud architecture, migrations & modernizations, Infrastructure as Code (IaC), and automation using Terraform and Ansible, enabling teams to accelerate cloud transformation through practical, engineering-driven solutions.

Stefan is a Principal Cloud Solution Architect (CSA) at Xebia Germany and a Microsoft MVP for Azure Infrastructure as Code and Azure Networking. He supports enterprise organizations in designing scalable, secure, and automated Azure platforms. His ex... Show more

Haja (Yadz) Rambelontsalama

Haja (Yadz) Rambelontsalama

With a zest culture hacker and a dose of product coach, I wear the mask of product manager on a daily basis. I like to take care of a close-knit team crafting a software that works in a healthy and psychologically secure environment.

Avec un zeste de culture hacker et une dose de coach produit, je porte le masque de product manager au quotidien. J'aime m'occuper d'une équipe soudée qui conçoit un logiciel qui fonctionne dans un environnement sain et psychologiquement sûr.

With a zest culture hacker and a dose of product coach, I wear the mask of product manager on a daily basis. I like to take care of a close-knit team crafting a software that works in a healthy and psychologically secure environment. Avec un zeste... Show more

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

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

Joshua Higginbotham

Joshua Higginbotham

Joshua Higginbotham is a Microsoft Data Platform MVP and Senior Data & AI Architect at QSIC, known for bridging the gap between deep technical execution and executive-level strategy. He has built and led data platforms across software engineering, database administration, business intelligence, and AI, with hands-on experience taking ideas from whiteboard to production.

Joshua has worked both as an individual contributor shipping real systems and as a leader guiding teams, roadmaps, and platform modernization efforts. A frequent speaker and Co-Chapter Leader of the Louisville Data Technology Group on Meetup, he’s passionate about helping data professionals build practical, scalable solutions that actually move the business forward.

Joshua Higginbotham is a Microsoft Data Platform MVP and Senior Data & AI Architect at QSIC, known for bridging the gap between deep technical execution and executive-level strategy. He has built and led data platforms across software engineering, da... Show more

Marco Obinu

Marco Obinu

Curious by nature, talkative geek who can speak in front of a public or a camera, in love with technology, especially Azure and SQL Server.
I want to understand how things work and to solve problems by myself during work as in my many hobbies.

Curious by nature, talkative geek who can speak in front of a public or a camera, in love with technology, especially Azure and SQL Server. I want to understand how things work and to solve problems by myself during work as in my many hobbies. Show more

Jose Andres Rodriguez Perez

Jose Andres Rodriguez Perez

José Andrés is an Azure Cloud Engineer from Caracas, Venezuela, currently based in London, United Kingdom. With a passion for cloud technology, he has worked with clients in the United States, Belgium, and the United Kingdom, helping them maximise the benefits of Azure.

José Andrés is an Azure Cloud Engineer from Caracas, Venezuela, currently based in London, United Kingdom. With a passion for cloud technology, he has worked with clients in the United States, Belgium, and the United Kingdom, helping them maximise th... Show more

Ramón Rautenstrauch

Ramón Rautenstrauch

My entire career has revolved around technology and my challenge to constantly keep up to date. I have never stopped learning and I will never stop. Learning gives me life.

🎯 I actively participate and engage in the SEO and digital marketing community, the Microsoft technology enthusiasts community and, up to the #WPdrama, in the WordPress community.

🗣️ Feel free to contact me if I can help you or if you think we can collaborate.

And besides all this, I am the proud father of Lukas 😍.

My entire career has revolved around technology and my challenge to constantly keep up to date. I have never stopped learning and I will never stop. Learning gives me life. 🎯 I actively participate and engage in the SEO and digital marketing comm... Show more

Erica Hughberg

Erica Hughberg

Erica Hughberg is a technical leader, experienced public speaker, and community advocate passionate about helping engineering teams build scalable, secure, and human-centric platforms for the AI era.

As a maintainer of Envoy AI Gateway, she plays a key role in enabling organizations to securely and efficiently integrate AI-powered services into their systems and solutions.

Erica Hughberg is a technical leader, experienced public speaker, and community advocate passionate about helping engineering teams build scalable, secure, and human-centric platforms for the AI era. As a maintainer of Envoy AI Gateway, she plays ... Show more

Shubhangi Goyal

Shubhangi Goyal

Shubhangi is multi award-winning senior Data & AI professional and Microsoft MVP with a career spanning across Fortune 500 , FTSE 100 to AI startups. With a decade of experience across data analytics, data science, data strategy, and AI, she specializes in leveraging algorithms to extract insights, surface patterns, and decode human language in complex datasets. She currently serves as a senior analyst at a leading FTSE 100 financial services and insurance firm in the UK. Previously, she led high-impact AI and data initiatives at ICS AI Ltd, delivering cutting-edge technology to the UK public sector. She holds a degree in Computer Science Engineering and an MSc in Business Analytics from the University of Bath. An international speaker, Shubhangi has delivered talks in 14 countries across the globe. She leads the London Chapter of Women in Data, championing the next generation of women in tech, and co-founded Builders Foundry, a community-driven platform where practitioners learn from real-world experience. She is also a verified expert and mentor on TopMate.

Shubhangi is multi award-winning senior Data & AI professional and Microsoft MVP with a career spanning across Fortune 500 , FTSE 100 to AI startups. With a decade of experience across data analytics, data science, data strategy, and AI, she speciali... Show more

Alessio Iafrate

Alessio Iafrate

Passionate about all things technological and a programmer for 20 years.
He started in the Java enterprise field and arrived in the .NET world as early as version 1.1 of the framework.
He works as a freelancer for various companies between Abruzzo and Lazio, especially in the web sector, but has an enormous passion for the mobile world, especially in the smartphone sector.
Founder of the Dotnet Abruzzo community in which he acts as speaker and event organizer and active member of DotNetCode
MVP since 2016 in the Windows Development category

Passionate about all things technological and a programmer for 20 years. He started in the Java enterprise field and arrived in the .NET world as early as version 1.1 of the framework. He works as a freelancer for various companies between Abruzzo ... Show more

Sergio Hernandez Mancebo

Sergio Hernandez Mancebo

[Azure MVP - Cloud Solution Architect]

Soy Sergio Hernández Macebo, Ingeniero en Informática por la Facultad UCM de Madrid.
Desde 2012 centrado en el desarrollo de aplicaciones Microsoft, desde aplicaciones Sharepoint On premises en todas sus versiones, a aplicaciones Office 365 (Sharepoint & Dynamics CRM).
Desde hace unos años dedico mi actividad a la coordinación de proyectos desde la figura de Team Leader sobretodo proyectos cloud en Azure, así como lidear el equipo de Team Leader, que incluye tanto el liderazgo del equipo de proyectos. En la actualidad muy centrado en definir arquitecturas empresariales y globales a una gran compañia multinacional, basadas en soluciones Cloud.

Enamorado de la tecnología, participo en revistas técnicas como Compartimoss, colaborador en distintos grupos de usuarios como SUGES, asiduo en eventos de la comunidad Microsoft como ponente u organizador, además de contar con una comunidad de usuarios propia llamada Crossdevlopment, que da cabida a que cualquiera que tenga un buen tema que compartir tenga un espacio para ser escuchado.

[Azure MVP - Cloud Solution Architect] Soy Sergio Hernández Macebo, Ingeniero en Informática por la Facultad UCM de Madrid. Desde 2012 centrado en el desarrollo de aplicaciones Microsoft, desde aplicaciones Sharepoint On premises en todas sus v... Show more

Celeste Tania Sánchez Fresneda

Celeste Tania Sánchez Fresneda

Desarrolladora desde hace 20 años en tecnologías .NET
Consultora Dynamics 365 desde hace 8 años
Consultora Azure desde hace 5 años
Consultora Power Platform desde hace 4 años

Desarrolladora desde hace 20 años en tecnologías .NET Consultora Dynamics 365 desde hace 8 años Consultora Azure desde hace 5 años Consultora Power Platform desde hace 4 años Show more

Liz Sundet

Liz Sundet

Liz loves a challenge, so everything from a business problem to troubleshooting an error in a system is just another learning opportunity. As a trainer and international speaker, she hopes to inspire others to learn something they can apply to their own work immediately. When she is not working in SharePoint or traveling, you may find her in a variety of activities as diverse as she is: playing music, riding motorcycles, training her dog and even a craft or two.

Liz loves a challenge, so everything from a business problem to troubleshooting an error in a system is just another learning opportunity. As a trainer and international speaker, she hopes to inspire others to learn something they can apply to their ... Show more

Mohamed Derhalli

Mohamed Derhalli

Mohamed has been working with Microsoft technologies for 16 years & has been an MVP since 2015. He has a passion for SharePoint, Copilot, Teams & Power Platform!
Mohamed obtained his Master's degree in Software Engineering from the university of Hertfordshire with the Golden Herts Award.

🍁 Organizer of the Canadian Cloud Summit with other awesome MVPS🍁

Mohamed has been working with Microsoft technologies for 16 years & has been an MVP since 2015. He has a passion for SharePoint, Copilot, Teams & Power Platform! Mohamed obtained his Master's degree in Software Engineering from the university of Her... Show more

Manuel Flores

Manuel Flores

Experto en ciberseguridad con amplia experiencia en pentesting, seguridad aplicativa, Red Team, Blue Team y ciberinteligencia, principalmente en los sectores de banca y telecomunicaciones. Cuenta con certificaciones avanzadas como CPTS, CRTP, eCPPT, eMAPT, eWPTX y CEH Master.

Actualmente trabaja en el Banco Central de Reserva del Perú, donde participa en la implementación de estrategias de defensa y en la ejecución de pruebas de penetración sobre sistemas críticos. Es instructor de Ciberseguridad en la Universidad Nacional de Ingeniería, y es conferencista en diversos eventos y comunidades de ciberseguridad en América Latina, incluyendo Argentina, México y Colombia, además de capacitaciones técnicas dirigidas a cuerpos policiales.

Es fundador de la comunidad CFC Security, iniciativa enfocada en la investigación, formación y difusión de conocimientos en seguridad ofensiva y defensiva. Asimismo, comparte contenido técnico y educativo a través de su canal de YouTube: https://www.youtube.com/@mr.leunam

Experto en ciberseguridad con amplia experiencia en pentesting, seguridad aplicativa, Red Team, Blue Team y ciberinteligencia, principalmente en los sectores de banca y telecomunicaciones. Cuenta con certificaciones avanzadas como CPTS, CRTP, eCPPT, ... Show more

Albert-Jan Schot

Albert-Jan Schot

As a senior cloud architect Albert-Jan Schot enjoys stepping up to the challenge of designing, developing and building innovative cloud solutions. He is a valuable source of knowledge for his colleagues, customers and the worldwide Microsoft-community. With his no-nonsense and can-do mentality he brings a unique combination of in-depth hands-on experience and consultancy skills on all levels to any team. As a CTO within Blis Digital Albert-Jan is responsible for the technical vision and strategy within the low-code practice.

As a senior cloud architect Albert-Jan Schot enjoys stepping up to the challenge of designing, developing and building innovative cloud solutions. He is a valuable source of knowledge for his colleagues, customers and the worldwide Microsoft-communit... Show more

Miguel Egea Gómez

Miguel Egea Gómez

Especializado en el mundo del tratamiento de los datos, con 25 años de experiencia en el sector más de 15 dedicado exclusivamente a los Datos. Master en Big Data & Analytics por la universidad de Murcia, ponente en conferencias del mundo Microsoft, cofundador del equipo del SQL Sat Madrid, Enamorado de PowerBI, y encantado con los retos del día a día. Padre de 3, esposo, pintor aficionado e interesado en todo lo que despierta mi curiosidad.

Especializado en el mundo del tratamiento de los datos, con 25 años de experiencia en el sector más de 15 dedicado exclusivamente a los Datos. Master en Big Data & Analytics por la universidad de Murcia, ponente en conferencias del mundo Microsoft, c... Show more

Ludovic Perrichon

Ludovic Perrichon

I have started in 2012 as SharePoint developer. My carreer has changed in 2019 while turning myself to the Power Platform. I am currently a Technical Lead on Power Platform. I love to share what I know and learn from others.

I have started in 2012 as SharePoint developer. My carreer has changed in 2019 while turning myself to the Power Platform. I am currently a Technical Lead on Power Platform. I love to share what I know and learn from others. Show more

Andrew Martin

Andrew Martin

Andrew has an incisive security engineering ethos gained building and destroying high-traffic web applications. Proficient in systems development, testing, and operations, he is at his happiest profiling and securing every tier of a cloud native system, and has battle-hardened experience delivering containerised solutions to enterprise and government. He is CEO at https://control-plane.io

Andrew has an incisive security engineering ethos gained building and destroying high-traffic web applications. Proficient in systems development, testing, and operations, he is at his happiest profiling and securing every tier of a cloud native syst... Show more

Joanne Gouaillier

Joanne Gouaillier

Je suis tombée dans l'agilité il y a déjà pas mal d'années, sans en connaître le nom. Ce mindset, ainsi que ses valeurs et principes, sont pour moi cruciaux pour toute organisation, toute démarche, tout projet. Non pas que les méthodes liées à l'agilité soient toujours les + adaptées, mais ce mindset fondé sur l'humain, l'écoute, la co-construction, l'adaptation et la création de valeur est transposable à toutes les échelles. Je suis aujourd'hui coach pour les équipes agiles, et j'accompagne aussi l'individu et les organisations à se transformer.

Je suis tombée dans l'agilité il y a déjà pas mal d'années, sans en connaître le nom. Ce mindset, ainsi que ses valeurs et principes, sont pour moi cruciaux pour toute organisation, toute démarche, tout projet. Non pas que les méthodes liées à l'agil... Show more

Rick Ossendrijver

Rick Ossendrijver

Rick Ossendrijver is a Software Engineer at Picnic, a fast-growing online supermarket. Rick is a committer and enthusiast of the Error Prone project. Moreover, he is passionate about improving software quality through static analysis and automation, and works on Picnic's open-source Error Prone Support project.

Rick Ossendrijver is a Software Engineer at Picnic, a fast-growing online supermarket. Rick is a committer and enthusiast of the Error Prone project. Moreover, he is passionate about improving software quality through static analysis and automation, ... Show more

Barry O'Reilly

Barry O'Reilly

Barry is a veteran Architect who has held Chief Architect positions at Microsoft among others. He has also been a startup CTO, the Worldwide Lead for the Solutions Architecture Community at Microsoft, and founder of the Swedish Azure User Group. He is also a PhD candidate in software design and complexity science.

Barry is a veteran Architect who has held Chief Architect positions at Microsoft among others. He has also been a startup CTO, the Worldwide Lead for the Solutions Architecture Community at Microsoft, and founder of the Swedish Azure User Group. He i... 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.