Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Nikolas Behar

Nikolas Behar

Nikolas Behar is an esteemed Red Team leader and consultant with a rich history in cybersecurity, having previously held roles at Deloitte, Accenture, and PwC. His expertise lies in red teaming and threat intelligence, where he excels in integrating complex offensive security strategies. Behar has significantly enhanced detection capabilities and operational efficiency in his roles, and his innovative approach to reporting has improved stakeholder comprehension.

Holding an MSc in Information Security from the University of London, Behar is also a seasoned educator in cybersecurity, teaching at multiple universities. His ability to distill complex concepts and engage diverse audiences has been showcased across various platforms, including prestigious conferences like Fal.con, BSides, and the BugCON. Dedicated to advancing the field, Behar leads research into emerging threats, develops cutting-edge tools, and mentors future cybersecurity professionals, reflecting his commitment to the community and continuous learning.

Nikolas Behar is an esteemed Red Team leader and consultant with a rich history in cybersecurity, having previously held roles at Deloitte, Accenture, and PwC. His expertise lies in red teaming and threat intelligence, where he excels in integrating ... Show more

Vadym Pinchuk

Vadym Pinchuk

Vadym is a Software Development Engineer and Google Developer Expert (GDE) in Flutter & Dart, driven by a dual passion: engineering world-class mobile solutions and elevating the developers around him. His deep expertise and active contributions to the tech ecosystem were formally recognized by Google with the GDE award in 2025.

With a rich background spanning over 8 years in native Android and more than 6 years in cross-platform development with Flutter, Vadym has a proven track record of building high-quality applications. He has partnered with industry giants such as Samsung, Volvo, Instagram, and Sky, as well as numerous dynamic startups, to deliver cutting-edge mobile solutions across a diverse range of sectors.

A true believer in the power of sharing knowledge, Vadym is a powerhouse in the community and a familiar face on the international conference circuit. He is known for bringing vibrant energy to the stage at major events including Droidcon, Fluttercon, FlutterHeroes, and Appdevcon. But his commitment doesn't stop at the podium; he also actively supports events as an MC and stage manager, dedicating his energy to ensuring a smooth and engaging experience for speakers and attendees alike.

At his core, Vadym is on a mission to empower the tech community. He is deeply passionate about developer education and channels this into dedicated mentoring, fostering growth, and helping to build the next generation of tech leaders.

Vadym is a Software Development Engineer and Google Developer Expert (GDE) in Flutter & Dart, driven by a dual passion: engineering world-class mobile solutions and elevating the developers around him. His deep expertise and active contributions to t... Show more

Andrea Della Porta

Andrea Della Porta

Born in Rome in 1994, passionate about mobile development since forever. Andrea has been a technology enthusiast for as long as he can remember. He started developing his first Java programs in his early high school years, but with the advent of smartphones, he quickly fell in love with the mobile world. His experience started in Switzerland for an Android project in the medical field and continued for large companies such as NTT Data and Deloitte, until he got to his current Capgemini. Over the years he has developed applications with large user bases for various industries, specializing in native Android development, Flutter and now Kotlin Multiplatform.
His life is not only programming, but also football, padel and an obsession with Lego!

Born in Rome in 1994, passionate about mobile development since forever. Andrea has been a technology enthusiast for as long as he can remember. He started developing his first Java programs in his early high school years, but with the advent of smar... Show more

Tatu Seppälä

Tatu Seppälä

Lifetime learner. Deep experience in consultancy, advisory and architectural roles in the Microsoft cloud tech space.

Lifetime learner. Deep experience in consultancy, advisory and architectural roles in the Microsoft cloud tech space. Show more

Syed Usman Ahmad

Syed Usman Ahmad

Usman is a Staff Developer Advocate at Grafana Labs from Nuremberg, Germany. He works with the Open Source community on the community forum, GitHub and Slack.

He has over 15 years of experience in IT and in Cloud Stack where he served multiple customers all over Europe, US, Japan, etc.

He is an active international public speaker participating in multiple conferences and events.

In his free time, Usman likes to spend time with his family, go out on occasional traveling and play games or read comics.

Usman is a Staff Developer Advocate at Grafana Labs from Nuremberg, Germany. He works with the Open Source community on the community forum, GitHub and Slack. He has over 15 years of experience in IT and in Cloud Stack where he served multiple cus... Show more

Giorgio Galassi

Giorgio Galassi

Senior Frontend Engineer with 10+ years of experience building large-scale, production-grade web applications. Specialized in Angular, TypeScript, NgRx, RxJS, and Nx, with a strong focus on component architecture, state management, micro-frontend patterns, and modular monorepos.

Most of my career has been spent in complex, multi-team environments where scalability and maintainability aren't optional. I think about frontend not just as UI delivery, but as a platform: shared libraries, design systems, DX tooling, and architecture that lets teams move fast without breaking each other's work.

Beyond code, I care deeply about the developer community. I'm co-founder of GDG Roma Città and co-organizer of NgRome. I write regularly on Angular topics and speak at conferences across Italy and Europe, including DevFest events and NgRome.

Senior Frontend Engineer with 10+ years of experience building large-scale, production-grade web applications. Specialized in Angular, TypeScript, NgRx, RxJS, and Nx, with a strong focus on component architecture, state management, micro-frontend pat... Show more

Davide Passafaro

Davide Passafaro

Senior Frontend Engineer and Google Developer Expert in Angular, Davide leads the GDG Roma Città and Angular Roma communities.

While rooted in Angular, he is currently expanding his horizons into Node.js, React, and AI experimentation to share fresh insights through talks and workshops.

Outside of coding, he is an archery enthusiast, a board game strategist, and a fan of escape rooms.

Senior Frontend Engineer and Google Developer Expert in Angular, Davide leads the GDG Roma Città and Angular Roma communities. While rooted in Angular, he is currently expanding his horizons into Node.js, React, and AI experimentation to share fre... Show more

Rafael Báguena Girbés

Rafael Báguena Girbés

Computer engineer with 15 years of experience in implementing business intelligence, engineering, and data analytics solutions. I love learning new things, pushing technology further, and collaborating on exciting projects that add value at all levels.

Computer engineer with 15 years of experience in implementing business intelligence, engineering, and data analytics solutions. I love learning new things, pushing technology further, and collaborating on exciting projects that add value at all level... Show more

Katerina Chernevskaya

Katerina Chernevskaya

Katerina, an MVP, MCT, and renowned public speaker, focuses on Power Platform & AI. With twenty years of experience and key certifications in PROSCI, PMI, Power Platform Solution Architect, she leads in app development, AI, and adaptive work models. Active in the Microsoft community, Katerina mentors new tech talent and supports innovation. Katerina takes part in the #SharingIsCaring initiative, guiding community contributions to the Microsoft Sample Solution Gallery.

https://www.linkedin.com/in/katerinachernevskaya/

Katerina, an MVP, MCT, and renowned public speaker, focuses on Power Platform & AI. With twenty years of experience and key certifications in PROSCI, PMI, Power Platform Solution Architect, she leads in app development, AI, and adaptive work models. ... Show more

Juan Vazquez

Juan Vazquez

Juan Vázquez is a Microsoft Certified Trainer (MCT) with 25 years of experience helping professionals and organizations adopt Microsoft technologies effectively. He is the CTO of DT Software Services, a Microsoft Partner, where he leads architecture, training, and technology strategy initiatives focused on data, analytics, AI, and Microsoft Fabric.

Juan serves as an MCT Regional Lead and holds multiple certifications across Microsoft Fabric, Power Platform, and Azure AI, further strengthening his expertise in modern data and AI solutions. He is also part of Microsoft’s In a Day program, where he delivers official workshops such as Fabric Analyst in a Day, Chat with Your Data in a Day, Real-Time Analytics in a Day, and Dashboard in a Day. In addition, he has delivered sessions at recognized community and industry events, including Power Platform Community Conference, Partner Vibe, and other Microsoft-focused conferences, workshops, and training programs.

With a strong technical background in SQL Server, .NET, data platforms, and solution architecture, Juan combines deep technical knowledge with a clear and engaging teaching style. He is recognized for helping teams move beyond theory into real-world implementation through impactful training sessions, workshops, and solution design.

Juan Vázquez is a Microsoft Certified Trainer (MCT) with 25 years of experience helping professionals and organizations adopt Microsoft technologies effectively. He is the CTO of DT Software Services, a Microsoft Partner, where he leads architecture,... Show more

Taiob Ali

Taiob Ali

Taiob Ali is a Microsoft Data Platform MVP with 20+ years of experience with SQL Server and Azure data services. While SQL Server remains his primary focus, he is currently learning, using, and teaching PostgreSQL, often describing himself as an accidental PostgreSQL DBA.
He is also exploring practical applications of AI in data platforms, including GitHub Copilot, Copilot agent development, and built‑in AI capabilities in SQL Server. Taiob is a frequent international speaker and an active community organizer.

Taiob Ali is a Microsoft Data Platform MVP with 20+ years of experience with SQL Server and Azure data services. While SQL Server remains his primary focus, he is currently learning, using, and teaching PostgreSQL, often describing himself as an acci... Show more

Håkan Silfvernagel

Håkan Silfvernagel

Håkan holds a Master of Science degree in Electrical Engineering and a Master’s degree in Leadership and Organizational behavior. He has also taken courses on university level in psychology, interaction design and human-computer interaction. He has 25 years’ experience of software development in various positions such as developer, tester, architect, project manager, scrum master, practice manager and team lead.

Håkan is Chairman of the Norwegian .NET User Group Oslo (NNUG) and is active as an Ambassador for Oslo AI, the local chapter for the global City.AI community. In addition, he is the co-founder of AI42, an online school for learning about AI and Data Science and the Azure User Group Sweden, a meetup focused on Azure.

Håkan is a Microsoft Most Valuable Professional (MVP) in AI, a Microsoft Certified Trainer (MCT) and a MCT Community Lead.

Currently Håkan is working as an Senior AI Architect at Sopra Steria.

Håkan holds a Master of Science degree in Electrical Engineering and a Master’s degree in Leadership and Organizational behavior. He has also taken courses on university level in psychology, interaction design and human-computer interaction. He has 2... Show more

Nicklas Ahlberg

Nicklas Ahlberg

Nicklas is a Trusted Security Advisor employed at Onevinn in Sweden.
His primary objective is assisting organisations in navigating Intune, ensuring they obtain an optimal and highly secure user experience.

Nicklas is a dual Microsoft MVP:
* Security (Microsoft Intune)
* Windows and Devices (Windows)

He has spoken at events such as:
* HTMD (21)
* TechMentor Orlando (22)
* Live 360 Orlando (22)
* MMUGSE, (23,24,25,26)
* NIC (23,25)
* India Cloud Security Summit (23,25)
* AVD Tech Fest (24)
* MEM Summit (22,23,24,25,26)
* Cloud Technology Townhall Tallinn (25,26)
* MC2MC Connect (25)
* MMSMOA (25)
* Experts Live Denmark (24,25,26)
* Experts Live NL (25)
* Workplace Ninjas Virtual Event (21)
* Workplace Ninjas NL Connect (25)
* Workplace Ninjas NO (25)
* Workplace Ninjas UK (25)
* Workplace Ninjas DK (26)
* Workplace Ninjas Summit (25)

Nicklas is a Trusted Security Advisor employed at Onevinn in Sweden. His primary objective is assisting organisations in navigating Intune, ensuring they obtain an optimal and highly secure user experience. Nicklas is a dual Microsoft MVP: * Sec... Show more

Samuel Macharia

Samuel Macharia

Samuel Macharia is a skilled Cloud DevOps Engineer with a passion for leveraging cloud technologies i.e. AWS, Azure & Google Cloud to drive innovation. He holds certifications as a Google Cloud Certified Professional Cloud Architect and Microsoft Certified DevOps Engineer Expert, equipping him to design and manage secure, scalable, and high-performing infrastructure across multi-cloud environments.

Samuel is dedicated to empowering the next generation of tech talent and has served as a mentor in the Grow Your Skills for Sub-Saharan Africa Google Cloud Program 2024. With a focus on practical solutions and a commitment to communities including AWS User Group Kenya, CloudForce Sky, GDG Eldoret & Write the Docs Kenya where he volunteers, Samuel is excited to share his knowledge and inspire others to embrace the power of the cloud.

Coming from a community best known for resilience and entrepreneurial spirit, he opted to code his own path forward. When he's not building in tech, he's exploring new creative endeavors, mastering chess strategies, or immersed in an intense crime drama.

Samuel Macharia is a skilled Cloud DevOps Engineer with a passion for leveraging cloud technologies i.e. AWS, Azure & Google Cloud to drive innovation. He holds certifications as a Google Cloud Certified Professional Cloud Architect and Microsoft Cer... Show more

Florian Lenz

Florian Lenz

Florian Lenz is a Microsoft Azure MVP and Cloud Architect with over 10 years of experience building secure, scalable cloud platforms on Microsoft Azure. He specializes in Azure Landing Zones, DevSecOps, Infrastructure as Code, and cloud-native architectures, and has worked across industries including energy, finance, retail, and software.
As a speaker, author, and content creator, Florian shares practical lessons from real-world projects through conference talks, articles, and his YouTube channel—helping engineers and teams design systems that are secure, maintainable, and built for long-term success.

Florian Lenz is a Microsoft Azure MVP and Cloud Architect with over 10 years of experience building secure, scalable cloud platforms on Microsoft Azure. He specializes in Azure Landing Zones, DevSecOps, Infrastructure as Code, and cloud-native archit... Show more

Bob Fornal

Bob Fornal

Microsoft MVP and Torc Ambassador with a focus on Web Development: JavaScript, TypeScript, CSS, SVG, Angular, React, React-Native, Vue, and Ionic. I commonly speak about Cloud CI/CD, Quality Engineering, Best Practices, and Front-End Technologies.

* Owner of Code Squid, LLC.
* Senior Solutions Developer II (Front-End) at Leading EDJE, Inc.

"Learning from my mistakes over the decades, I feel that I have become a solid programmer." -- Me

Microsoft MVP and Torc Ambassador with a focus on Web Development: JavaScript, TypeScript, CSS, SVG, Angular, React, React-Native, Vue, and Ionic. I commonly speak about Cloud CI/CD, Quality Engineering, Best Practices, and Front-End Technologies. ... Show more

Massimo Crippa

Massimo Crippa

Massimo Crippa is a cloud enthusiast with 20+ years of experience shaping enterprise solutions on Microsoft technologies, with a tech-intensive mindset and a strong passion for exploring emerging technologies.

He began his career in the Italian ICT sector as a web developer before moving into messaging and cloud projects. Since 2011, he has lived and worked across Belgium and France, and today he is a Lead Architect at Codit.
Massimo’s expertise spans the full cloud journey: from defining strategy and demonstrating the value of Azure PaaS, AI, and container-based solutions to delivering hands-on implementations with customers.

Outside of work, he’s a proud dad of two, passionate about motorbikes, and always eager to explore the latest in cloud technology.

Massimo Crippa is a cloud enthusiast with 20+ years of experience shaping enterprise solutions on Microsoft technologies, with a tech-intensive mindset and a strong passion for exploring emerging technologies. He began his career in the Italian IC... Show more

Marjolein Opsteegh

Marjolein Opsteegh

My name is Marjolein Opsteegh. I'm a Microsoft Data Platform MVP and a big Power BI enthusiast living in the Netherlands, who loves to share knowledge, especially at the intersection of Power BI, UI, and UX. As a consultant, I design and build dashboards that are both visually appealing and user-friendly, keeping end users in mind throughout the process.

In addition to creating dashboards, I enjoy writing about frontend principles and sharing practical tips to help others get the most out of Power BI. I frequently speak at events and host Q&A sessions, inspiring others to improve their skills and embrace the power of data visualization, both online and offline.

My name is Marjolein Opsteegh. I'm a Microsoft Data Platform MVP and a big Power BI enthusiast living in the Netherlands, who loves to share knowledge, especially at the intersection of Power BI, UI, and UX. As a consultant, I design and build dashbo... Show more

Alvaro Costa-Neto

Alvaro Costa-Neto

Alvaro Costa-Neto is a Senior Database Specialist Solutions Architect at AWS who specializes in helping customers implement cloud-based database solutions. With over 20 years of experience in database technologies, he has extensive expertise in both Microsoft SQL Server and various open-source database engines. His role focuses on designing and architecting database solutions for AWS customers.

Alvaro Costa-Neto is a Senior Database Specialist Solutions Architect at AWS who specializes in helping customers implement cloud-based database solutions. With over 20 years of experience in database technologies, he has extensive expertise in both ... Show more

Laila Bougria

Laila Bougria

Laila Bougria is a Solutions Architect and Engineer with over two decades of industry experience. She's a keynote speaker, a Microsoft MVP in Azure and Developer Technologies, and frequently shares her knowledge and insights at conferences worldwide. Currently, Laila is busy building NServiceBus at Particular Software and solving distributed riddles. She specializes in event-driven systems and is passionate about critical thinking. When she's not immersed in complex problems or code, Laila enjoys indulging in her favorite pastime - knitting! She finds that tangling the yarn into beautiful patterns helps untangle her thoughts.

Laila Bougria is a Solutions Architect and Engineer with over two decades of industry experience. She's a keynote speaker, a Microsoft MVP in Azure and Developer Technologies, and frequently shares her knowledge and insights at conferences worldwide.... Show more

Yves Habersaat

Yves Habersaat

Yves Habersaat is a Business Applications Consultant and AI Tech Lead at Sword Group in Switzerland, specializing in building applications and solutions with Microsoft 365, Azure, Dynamics 365, and the Power Platform.

With a strong passion for modern development technologies and application lifecycles, Yves focuses on Microsoft 365 services such as Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Viva, and Microsoft Copilot. He possesses expertise in modern development tools including SharePoint Framework (SPFx), Teams SDK, Microsoft Graph, Git, TypeScript, React, Visual Studio, and Azure DevOps.

He actively shares his knowledge and experience through speaking engagements and his blog at www.yhabersaat.ch, always ready to support and assist the community.

Yves Habersaat is a Business Applications Consultant and AI Tech Lead at Sword Group in Switzerland, specializing in building applications and solutions with Microsoft 365, Azure, Dynamics 365, and the Power Platform. With a strong passion for mod... Show more

Sasha Denisov

Sasha Denisov

Sasha is CTO at Brainform.ai with over 20 years of experience architecting scalable enterprise systems. With a strong engineering background, his expertise spans frontend, backend, cloud infrastructure, mobile development, and AI — from cloud-based generative AI to on-device solutions. He specializes in building robust, production-ready products using a variety of technologies and frameworks. Sasha has delivered solutions across fintech, digital media, and entertainment. He is a Google Developer Expert for Cloud, AI, Firebase, Flutter, and Dart, co-organizes the Flutter Berlin Community, and is a recognized international speaker and writer, having presented at 30+ conferences worldwide.

Sasha is CTO at Brainform.ai with over 20 years of experience architecting scalable enterprise systems. With a strong engineering background, his expertise spans frontend, backend, cloud infrastructure, mobile development, and AI — from cloud-based g... Show more

Matthijs van der Veer

Matthijs van der Veer

Matthijs is a Coding Architect at Xebia. With a strong focus on Azure and AI, he helps clients achieve more on Azure. Matthijs has a passion for creating good work environments, writing great code, and building amazing teams.

Matthijs trained and led teams in different countries. He strongly believes that remote and distributed teams can be just as (or more) effective than sitting in the same old office together. Matthijs received the Microsoft MVP Award for five consecutive years.

Matthijs is a Coding Architect at Xebia. With a strong focus on Azure and AI, he helps clients achieve more on Azure. Matthijs has a passion for creating good work environments, writing great code, and building amazing teams. Matthijs trained and ... Show more

Luis Valdivia Humareda

Luis Valdivia Humareda

Trabajo como profesional de nivel C, líder técnico y desarrollador senior con más de 15 años de experiencia en el desarrollo de aplicaciones web y APIs (REST) utilizando Node.js, React, AWS, PHP y Python para diversas organizaciones y marcas locales. Mi enfoque se centra en la creación de soluciones escalables y en la implementación de las mejores prácticas. Tengo habilidades con numerosas pasarelas de pago, incluyendo Niubiz, Culqui, Stripe, Payu y Mercado Pago, y soy un desarrollador certificado en cada una de ellas. Además, cuento con certificaciones en Metodologías Ágiles (SDC y SMC) y tengo una maestría en gestión de proyectos (PMI).

En la actualidad, estoy trabajando en el desarrollo de soluciones OTT personalizadas utilizando AWS MediaLive y MediaConnect, integrando plataformas de comercio electrónico con soluciones ERP personalizadas como Odoo y Genesys, y construyendo sitios de alto tráfico utilizando varios proveedores de servicios en la nube como AWS (Cloud Practitioner y Cloud Architect) y GCP. Uno de mis logros más destacados fue entregar con éxito transmisiones en vivo para 350,000 usuarios concurrentes en un evento global.

Trabajo como profesional de nivel C, líder técnico y desarrollador senior con más de 15 años de experiencia en el desarrollo de aplicaciones web y APIs (REST) utilizando Node.js, React, AWS, PHP y Python para diversas organizaciones y marcas locales.... Show more

Magnus Ahlkvist

Magnus Ahlkvist

Magnus works as an independent SQL Server consultant at his company Transmokopter SQL AB, with everything from on-premise to cloud databases, from database design and T-SQL programming to infrastructure planning and administration, from transaction intensive databases to data warehousing workloads.
When paid work stops, community work starts. Magnus is organizer for Stockholm SQL Meetup and he's speaking and volunteering on data events, small and large. In October 2020, Magnus was awarded the Microsoft Data Platform MVP award.

Magnus works as an independent SQL Server consultant at his company Transmokopter SQL AB, with everything from on-premise to cloud databases, from database design and T-SQL programming to infrastructure planning and administration, from transaction i... Show more

Thomas Naunheim

Thomas Naunheim

Thomas Naunheim is a Cyber Security Architect at glueckkanja AG and a Microsoft MVP from Koblenz, Germany, specializing in cloud-native identity and security solutions in Microsoft Azure and Microsoft Entra. With a deep focus on privileged identity management, identity security, and Zero Trust architecture, he designs and implements security solutions for real-world enterprise environments.

Thomas actively gives back to the community as a blogger at cloud-architekt.net, where he publishes in-depth research and practical insights on Microsoft Security. He is a speaker at international conferences and meetups, co-author of the open-source Entra ID Attack & Defense Playbook, and the creator of EntraOps - a community tool for privilege classification based on the Enterprise Access Model.

Beyond content creation, Thomas co-hosts the podcast Cloud Inspires and is actively involved in community organization as a member of the Azure Meetup Bonn and Cloud Identity Summit organizing teams. His long-standing contributions across blogging, speaking, and open-source development earned him the Microsoft MVP award in the Identity & Access and Cloud Security category.

Thomas Naunheim is a Cyber Security Architect at glueckkanja AG and a Microsoft MVP from Koblenz, Germany, specializing in cloud-native identity and security solutions in Microsoft Azure and Microsoft Entra. With a deep focus on privileged identity m... Show more

Mahendran Selvakumar

Mahendran Selvakumar

I'm Mahendran Selvakumar, a Cloud Native technologist and Open Source advocate with deep experience in Kubernetes, AWS, and HashiCorp tools and Service Mesh. I'm a HashiCorp Ambassador, Linkerd Ambassador, AWS Community Builder. I organize the AWS West Midlands, West Midlands HashiCorp, and Cloud Native Birmingham user groups.

I’ve delivered talks at DevOps Live, HashiTalks, Hashicorp User Groups and other industry events, focusing on Kubernetes,platform engineering, secure infrastructure, and service mesh adoption. I also mentor students through free AWS and Terraform training and publish technical blogs on https://devopstronaut.com to make Cloud Native and Open Source technologies more accessible.

I'm Mahendran Selvakumar, a Cloud Native technologist and Open Source advocate with deep experience in Kubernetes, AWS, and HashiCorp tools and Service Mesh. I'm a HashiCorp Ambassador, Linkerd Ambassador, AWS Community Builder. I organize the AWS We... Show more

Jessica Andersson

Jessica Andersson

Jessica has extensive experience and expertise within cloud architecture, cloud infrastructure and platform engineering. She's a hands-on technical leader who has built up and led platform teams within developer experience and data. She is also a Cloud Native Computing Foundation (CNCF) ambassador who regularly shares her knowledge both in the local Gothenburg community and at conferences such as QCon.​

Jessica has extensive experience and expertise within cloud architecture, cloud infrastructure and platform engineering. She's a hands-on technical leader who has built up and led platform teams within developer experience and data. She is also a Clo... Show more

Yash Sharma

Yash Sharma

Yash is Developer Advocate at DigitalOcean, KubeCon speaker and a core maintainer of Meshery, an open-source CNCF sandbox project. He is a mentor for the LFX 2024 projects and was an LFX mentee in the 2023 mentorship under Meshery. He hosts weekly Meshery Development calls and engage in CNCF communities

Yash is Developer Advocate at DigitalOcean, KubeCon speaker and a core maintainer of Meshery, an open-source CNCF sandbox project. He is a mentor for the LFX 2024 projects and was an LFX mentee in the 2023 mentorship under Meshery. He hosts weekly Me... Show more

Clément Serafin

Clément Serafin

I am Clément SERAFIN, Global Solution Architect AI.
Specialized in tenant 365 migrations during merge & acquisitions, I advised multiple companies on several areas of Microsoft 365:
– Entra ID (Security, IAM)
– Teams (Call center, Teams Premium, Mesh)
– Exchange Online / Hybrid (Migration, Security)
– Copilot 365
– Defender for Office 365
– PowerShell advanced automation (Graph, Xaml Gui)

Now as part of Microsoft, I help companies to get the best of last AI Solution like Agent 365 or Copilot Cowork.

I am Clément SERAFIN, Global Solution Architect AI. Specialized in tenant 365 migrations during merge & acquisitions, I advised multiple companies on several areas of Microsoft 365: – Entra ID (Security, IAM) – Teams (Call center, Teams Premium, M... 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.