Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
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

Richard Fichtner

Richard Fichtner

Richard Fichtner is the Principal Software Architect at XDEV Software GmbH, with over 20 years of experience in the software industry. He works at the intersection of business and technology and is a strong advocate for best practices in modern Java development. Richard is passionate about sharing knowledge on Java technologies, making him a frequent and highly rated conference speaker.

He is the founder and leader of the Java User Group Oberpfalz and co-organizes the JCON conferences. JCON EUROPE brings together the worldwide Java community from more than 60 countries.
Richard has been recognized as a Java Champion, Oracle ACE Pro, IBM Champion, and Vaadin Champion. With a Master of Science in Applied Computer Science, his expertise spans Java, clean code, pragmatic development practices, and European data privacy, helping organizations build modern, maintainable software.

In his spare time, Richard enjoys relaxing by a campfire and listening to or playing country music.

Richard Fichtner is the Principal Software Architect at XDEV Software GmbH, with over 20 years of experience in the software industry. He works at the intersection of business and technology and is a strong advocate for best practices in modern Java ... Show more

Sharon Smith

Sharon Smith

A dual Microsoft Business Applications MVP in Customer Experience and Customer Service. An expert Microsoft Certified Dynamics 365 Solution Architect, who's led the delivery and implementation of several tailored and value-oriented solutions to meet diverse global and national business requirements, that lead to positive customer outcomes.

15x Microsoft Certified and Success by Design Accredited, I use its principles that blend strategic design, rigorous gap analysis, and the pursuit of excellence in service delivery, to craft pathways to success for customers.

As Founder of the Community-led organisation The Mentoring Hub, an award-winning mentor, knowledge sharer & educator; MVP Mentor Lead, and regular Community contributor and international public speaker, I have a 'thing' for learning, a thirst for knowledge, and a desire for sharing both to uplift and empower all.

A dual Microsoft Business Applications MVP in Customer Experience and Customer Service. An expert Microsoft Certified Dynamics 365 Solution Architect, who's led the delivery and implementation of several tailored and value-oriented solutions to meet... Show more

Jannik Reinhard

Jannik Reinhard

Jannik Reinhard helps enterprises build and operate secure AI solutions across Microsoft Foundry, Intune and Azure.

As Head of AI at Epic Fusion AG, a global Microsoft Partner of the Year 2024 winner. Epic Fusion combines people, processes and Microsoft technology under the philosophy “digital first, humans not second.”

Jannik is a five-time Microsoft MVP and currently holds dual MVP recognition in AI Platform and Security, bringing together two disciplines that are becoming increasingly connected: enterprise AI and modern endpoint security.

Before joining Epic Fusion, Jannik spent 11 years at BASF. He began with an IT apprenticeship and progressed to Senior Solution Architect for Modern Device Management and Technical Lead and Lead Architect for AIOps. During this time, he designed and built an enterprise AI framework from the ground up that reached more than 70,000 active users and supported IT operations for over 120,000 employees. His work focused on using automation and AI to detect and resolve issues proactively, before they affected the end user.

Beyond his professional work, Jannik is passionate about sharing practical knowledge with the technology community. He writes about AI, Microsoft Foundry, Intune, Azure and security at jannikreinhard.com and contributes to technical books and open-source projects.

Jannik Reinhard helps enterprises build and operate secure AI solutions across Microsoft Foundry, Intune and Azure.

As Head of AI at Epic Fusion AG, a global Microsoft Partner of the Year 2024 winner. Epic Fusion combines people, processes and Microsoft technology under the philosophy “digital first, humans not second.”

Jannik is a five-time Microsoft MVP and currently holds dual MVP recognition in AI Platform and Security, bringing together two disciplines that are becoming increasingly connected: enterprise AI and modern endpoint security.

Before joining Epic Fusion, Jannik spent 11 years at BASF. He began with an IT apprenticeship and progressed to Senior Solution Architect for Modern Device Management and Technical Lead and Lead Architect for AIOps. During this time, he designed and built an enterprise AI framework from the ground up that reached more than 70,000 active users and supported IT operations for over 120,000 employees. His work focused on using automation and AI to detect and resolve issues proactively, before they affected the end user.

Beyond his professional work, Jannik is passionate about sharing practical knowledge with the technology community. He writes about AI, Microsoft Foundry, Intune, Azure and security at jannikreinhard.com and contributes to technical books and open-source projects.

He regularly speaks at international community and industry events, including:
- MMS
- Workplace Ninjas
- Modern Endpoint Management Summit
- ESPC
- Experts Lives
- NIC
- CloudX
- Global AI Bootcamp
- Cloud Technology Townhall Tallinn
... and many more.

Jannik Reinhard helps enterprises build and operate secure AI solutions across Microsoft Foundry, Intune and Azure. As Head of AI at Epic Fusion AG, a global Microsoft Partner of the Year 2024 winner. Epic Fusion combines people, processes and Mic... Show more

Atuoha Anthony

Atuoha Anthony

Atuoha Anthony is a Senior Mobile Software Engineer with a track record of building scalable, high-performance applications across various platforms, including Android, iOS, web, and others, primarily using Flutter & Dart, alongside Kotlin and Swift, and leveraging AI.

Atuoha Anthony is a Senior Mobile Software Engineer with a track record of building scalable, high-performance applications across various platforms, including Android, iOS, web, and others, primarily using Flutter & Dart, alongside Kotlin and Swift,... Show more

David vonThenen

David vonThenen

David vonThenen is an AI/ML Engineer where he focuses on production AI systems, enterprise AI data retrieval strategy, and architectures for explainable, governable, and reliable AI. His work spans agentic solutions, various RAG architectures, AI memory systems, multi-agent solutions, OpenSearch, data lineage, provenance, and AI governance.

David has more than 20 years of experience building production software across AI/ML, speech and NLP, Kubernetes, cloud-native platforms, storage, virtualization, and backup/recovery. He combines hands-on engineering with technical strategy, open-source leadership, developer advocacy, and customer integrations.

He has spoken at NVIDIA GTC, Devoxx (France, Poland, Greece, UK, Morocco), Open Data Science Conference (ODSC), WeAreDevelopers, and SCaLE on topics including explainable AI, agentic systems, model quantization, multimodal ML, and small language model training. His mission is to help teams move beyond AI prototypes and build systems that are observable, reproducible, trustworthy, and ready for production.

David vonThenen is an AI/ML Engineer where he focuses on production AI systems, enterprise AI data retrieval strategy, and architectures for explainable, governable, and reliable AI. His work spans agentic solutions, various RAG architectures, AI mem... Show more

Alfonso Graziano

Alfonso Graziano

Alfonso Graziano is a AI Tech Lead with a strong background in software engineering, specializing in JavaScript, AI and distributed systems. Currently at Nearform, Alfonso leads engineering teams to deliver impactful projects. Passionate about knowledge sharing, he loves to solve problems and contributes to tech communities.

Alfonso Graziano is a AI Tech Lead with a strong background in software engineering, specializing in JavaScript, AI and distributed systems. Currently at Nearform, Alfonso leads engineering teams to deliver impactful projects. Passionate about knowle... Show more

Guy Royse

Guy Royse

Guy has a single mission in life: learn how everything works and share it. He's spent a lot of time learning how technology works—analog and digital, hardware and software—but Guy explores all sorts of interesting topics and he spread the knowledge he gains with communities worldwide.

Teaching and community have long been a focus for Guy. He is president of his amateur radio club. He ran a local JavaScript meetup in Ohio for more than a decade. He has served on the selection committees of numerous conferences. He has even helped teach programming at a prison in Central Ohio.

In his personal life, Guy is a hard-boiled geek interested in role-playing games, science fiction, and technology. He has a slightly less geeky interest in history, linguistics, and geopolitics but these are really just more ways to understand how things work. He has an entire wall of role-playing games and science fiction books, speaks Spanish like a two-year old, and is a ham radio operator—callsign W8GUY.

Guy lives in Ohio with his wife. His three sons are adults now and are all moved out. He is immensely proud of the men they have become.

Guy has a single mission in life: learn how everything works and share it. He's spent a lot of time learning how technology works—analog and digital, hardware and software—but Guy explores all sorts of interesting topics and he spread the knowledge h... Show more

Adriana Villela

Adriana Villela

Adriana Villela is a blogger, host of the Geeking Out podcast, CNCF Ambassador, OpenTelemetry Community Manager, and maintainer of the OpenTelemetry End User SIG. By day, she focuses on Observability and OpenTelemetry, as a Principal Developer Advocate at Dynatrace. By night, she climbs walls. She also loves capybaras, because they make her happy.

In past lives, Adriana managed both a Platform Engineering team and Observability Practices team at Tucows. She has also worked at various large-scale enterprises as both an individual contributor and leader, including Bank of Montreal, Ceridian, and Accenture.

Adriana Villela is a blogger, host of the Geeking Out podcast, CNCF Ambassador, OpenTelemetry Community Manager, and maintainer of the OpenTelemetry End User SIG. By day, she focuses on Observability and OpenTelemetry, as a Principal Developer Advoca... Show more

Keyla Dolores Méndez

Keyla Dolores Méndez

Senior Data Architect with 10+ years of experience designing and delivering scalable data and analytics solutions in enterprise environments, particularly in the financial sector.

Specialized in Microsoft Fabric, Power BI, and modern data architectures, I build data platforms that enable real-time insights, improve decision-making, and drive measurable business value.

I have led initiatives in modern data architectures (Lakehouse, real-time analytics, cloud), performance optimization, and data-driven strategies.

Recognized as a 6x Microsoft MVP (Data Platform) and Microsoft Certified Trainer (MCT), I contribute to the global data community through speaking, training, and content creation.

Highlights:

- Delivered technical sessions at international conferences and global tech events
- Designed enterprise-scale data architectures in the financial sector
- Lecturer in graduate-level data and analytics programs
- Active contributor through speaking, mentoring, and technical content

Senior Data Architect with 10+ years of experience designing and delivering scalable data and analytics solutions in enterprise environments, particularly in the financial sector. Specialized in Microsoft Fabric, Power BI, and modern data architec... Show more

Jeff Taylor

Jeff Taylor

Jeff Taylor is a Principal Data Consultant, Microsoft Data Platform MVP, Redgate Community Ambassador, and Octopus Insider with over 28 years of experience specializing in performance tuning and critical data issues. He currently organizes the Jax Data and Day of Data Jacksonville (formerly SQL Saturday) and is a co-organizer of JaxDUG.

Jeff Taylor is a Principal Data Consultant, Microsoft Data Platform MVP, Redgate Community Ambassador, and Octopus Insider with over 28 years of experience specializing in performance tuning and critical data issues. He currently organizes the Jax Da... Show more

Nikhilesh Tayal

Nikhilesh Tayal

Nikhilesh is an entrepreneur, teacher and tech nerd
He is an IIT Kharagpur alumnus. He is also a Google Developer Expert in AI and has over 18,000 followers on LinkedIn.
Currently, he runs "AI ML etc." - an AI-enabled educational platform for senior IT professionals to learn AI. He has spoken at 70+ tech events across the globe.
Recently, he was felicitated by the Chief Minister of Rajasthan for his contribution to education.

Nikhilesh is an entrepreneur, teacher and tech nerd He is an IIT Kharagpur alumnus. He is also a Google Developer Expert in AI and has over 18,000 followers on LinkedIn. Currently, he runs "AI ML etc." - an AI-enabled educational platform for senio... Show more

Rodrigo Liberoff

Rodrigo Liberoff

Hi there… I'm Rodrigo, a Microsoft technologies veteran with more than 20+ years of experience.

In recent years, I have focused on Artificial Intelligence technologies, starting with Natural Language Processing (NPL) services such as Azure AI Language (previously known as Azure Cognitive Service for Language) and now with Generative AI (mainly Azure OpenAI), working on the potential and challenges (technical and ethical) of these new technologies and trying to help the community face them.

I also generate digital content to share my experience working with Artificial Intelligence services and resources, sharing tricks and strategies that anyone can follow, taking knowledge from the most basic levels to the most advanced. I publish my content through my YouTube channel (https://www.youtube.com/@CODERTECTURA), Twitch (https://www.twitch.tv/codertectura), LinkedIn and X social networks (formerly Twitter), my personal blog (www.codertectura.com), and other media such as the ENCAMINA blog (my current company), allowing me to reach more people through these channels.

I am a co-founder and main contributor of the open-source library ENMARCHA (https://github.com/Encamina/enmarcha), which showcases some of my experience and knowledge with Microsoft and Azure libraries for Artificial Intelligence. The idea is to help the community adopt these technologies and accelerate their own projects and initiatives.

If you want, we can connect at @rliberoff 😎

Hi there… I'm Rodrigo, a Microsoft technologies veteran with more than 20+ years of experience. In recent years, I have focused on Artificial Intelligence technologies, starting with Natural Language Processing (NPL) services such as Azure AI Lang... 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

Roberth Strand

Roberth Strand

Roberth is a self-proclaimed "cloud automator" and "platform creator". He primarily works on building cloud native platforms, while being an advocate for Platform Engineering and DevOps. He has been awarded the title Microsoft Azure MVP and CNCF Ambassador, and previously HashiCorp Ambassador. As an active speaker for several years, he has been on stage everywhere from small local meetups to KubeCon.

Furthermore, he initiated Cloud Native Norway, which hosts events and supports the cloud native community in Norway. Additionally, he is active in the Cloud Native Computing Foundation as maintainer of the OpenGitOps project, previously a co-chair of TAG App Delivery, and founded and lead the Platforms Working Group for several years.

Roberth is a self-proclaimed "cloud automator" and "platform creator". He primarily works on building cloud native platforms, while being an advocate for Platform Engineering and DevOps. He has been awarded the title Microsoft Azure MVP and CNCF Amba... Show more

Tonie Huizer

Tonie Huizer

Tonie Huizer is a Software, Data, and DevOps Consultant who believes good tech starts with understanding your people. A regular on international stages and a Microsoft Certified Azure Developer, Tonie loves helping teams simplify complex challenges; whether that’s modernizing database deployments, designing scalable systems, or just getting Dev and Ops to finally talk to each other.

Tonie is known for his clear, energetic presentation style and ability to make complex topics accessible and engaging. As a Redgate Community Ambassador, he advocates for database DevOps and contributes to open knowledge sharing through blogs, talks, and events across the globe. He also co-leads SeaQL Saturday, a community-driven event that blends education, networking, and Sammie, his Kooikerhondje mascot. (Because yes, even events are better with a dog.)

Whether he's discussing Azure DevOps workflows, database release automation, or the cultural shifts required to implement DevOps successfully, Tonie brings real-world experience, humor, and actionable insights. His goal is to inspire professionals not just to adopt new technologies, but to transform how teams collaborate and innovate.

And when he’s not speaking about tech, he might just be speaking about whisky. Tonie is a passionate whisky enthusiast who loves sharing stories, flavors, and the occasional tasting session with his fellow connoisseur of TasteWhisky. If you're into DevOps, data, and a well-aged dram on the side, Tonie’s your man!

Tonie Huizer is a Software, Data, and DevOps Consultant who believes good tech starts with understanding your people. A regular on international stages and a Microsoft Certified Azure Developer, Tonie loves helping teams simplify complex challenges; ... Show more

Marco Caruso

Marco Caruso

Microsoft MVP in Copilot Studio | CTO K2 NEXT
Enterprise Architect with a strong background in Microsoft solutions, I began my career focusing on SharePoint before expanding into the Azure ecosystem, where I gained experience designing scalable and secure cloud architectures. In recent years, I’ve specialized in Low Code development using Microsoft Power Platform, delivering enterprise-grade solutions that integrate Power Apps, Power Automate, and Dataverse.

I'm the Microsoft MVP in Copilot studio and currently, I design and implement intelligent agents with Copilot Studio, supporting organizations in the strategic adoption of generative AI and in defining resilient, scalable architectural models. I collaborate closely with cross-functional teams to drive digital transformation through modern, composable, and business-oriented solutions.

As a speaker, I’ve participated in several industry events such as WPC, BeConnected Day, Agent Conf, and others, sharing insights and best practices on cloud-native architectures, Power Platform governance, and advanced automation and AI scenarios.

Microsoft MVP in Copilot Studio | CTO K2 NEXT Enterprise Architect with a strong background in Microsoft solutions, I began my career focusing on SharePoint before expanding into the Azure ecosystem, where I gained experience designing scalable and... 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

Daniel Yuschick

Daniel Yuschick

Daniel Yuschick thrives at the intersection of design and development, specializing in leading accessible and resilient design systems. As a Lead Design System Developer, he is dedicated to bridging the gaps between design, code, and people, while mentoring through Helsinki-based non-profits Codebar and Hive Helsinki. Also a fiction author, Daniel brings a storyteller’s lens to his work, balanced with a love for great chocolate and beautiful tattoos.

Daniel Yuschick thrives at the intersection of design and development, specializing in leading accessible and resilient design systems. As a Lead Design System Developer, he is dedicated to bridging the gaps between design, code, and people, while me... Show more

Maurice Daly

Maurice Daly

Maurice has been working in the IT industry for the past 25 years. His focus is on the areas of Windows deployment, device management, Entra ID security, and secure productivity. Maurice has been an MCSE since 2008 and received his first MVP award in Enterprise Mobility (now Security) in March 2017.

Most recently, his focus has been on automating deployment tasks, creating and sharing PowerShell scripts, log analytics reports, and Azure Functions to help others streamline their deployment processes.

Maurice has been working in the IT industry for the past 25 years. His focus is on the areas of Windows deployment, device management, Entra ID security, and secure productivity. Maurice has been an MCSE since 2008 and received his first MVP award in... Show more

Thorsten Pickhan

Thorsten Pickhan

Thorsten Pickhan works at Microsoft and has been focused on Microsoft 365, Microsoft Teams, Teams Phone, and Copilot for many years. As a speaker, blogger, YouTuber, and community advocate, he regularly shares his knowledge at conferences, user groups, and through his blog and YouTube channel.

From 2021 to 2025, he was honored as a Microsoft MVP in recognition of his contributions to the Microsoft community, particularly in the areas of Microsoft Teams and Copilot. After joining Microsoft, he retired the MVP title in accordance with the program requirements.

His areas of expertise include modern collaboration, communication solutions, and the productive use of AI within the Microsoft 365 ecosystem.

Thorsten Pickhan works at Microsoft and has been focused on Microsoft 365, Microsoft Teams, Teams Phone, and Copilot for many years. As a speaker, blogger, YouTuber, and community advocate, he regularly shares his knowledge at conferences, user group... 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

Hossein Salahi

Hossein Salahi

Hossein is a Cloud Tech Lead with nearly a decade of experience architecting distributed systems and scalable infrastructure. From engineering enterprise-grade, on-premises Kubernetes platforms to leading complex DevOps transformations, he specializes in building resilient systems. Beyond driving technical strategy, Hossein actively mentors platform engineering teams and shares his expertise through industry talks and workshops.

Hossein is a Cloud Tech Lead with nearly a decade of experience architecting distributed systems and scalable infrastructure. From engineering enterprise-grade, on-premises Kubernetes platforms to leading complex DevOps transformations, he specialize... Show more

Whitney Lee

Whitney Lee

Whitney Lee is a creator and systems thinker who explores how observability, AI, and platform engineering connect across the cloud native ecosystem. She brings humor, depth, and clarity to complex technologies while building original frameworks that help others understand how systems fit together. She runs a vibrant YouTube channel, hosts Datadog Illuminated and Software Defined Interviews, has delivered two KubeCon keynotes and countless breakout talks, and combines storytelling and technical rigor to illuminate the human side of cloud native engineering.

Whitney Lee is a creator and systems thinker who explores how observability, AI, and platform engineering connect across the cloud native ecosystem. She brings humor, depth, and clarity to complex technologies while building original frameworks that ... 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

Paco Xu

Paco Xu

Paco is a member of Kubernetes Steering Committee, and co-chair of KubeCon+CloudNativeCon China 2024.

Paco is a kubeadm maintainer and an active kubernetes contributor. His interest includes SIG-Node, LTS and CoreDNS.

He is the leader of the open-source team in DaoCloud. He organized KCD Chengdu 2022 and KCS China 2023, and speaked in KCD Shanghai, KubeCon EU 2023 & 2024 & 2025, and KubeCon China 2021, 2023, 2024 & 2025. He is also LFAPAC Evangelist.

Paco is a member of Kubernetes Steering Committee, and co-chair of KubeCon+CloudNativeCon China 2024. Paco is a kubeadm maintainer and an active kubernetes contributor. His interest includes SIG-Node, LTS and CoreDNS. He is the leader of the op... 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

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

Neil Chandler

Neil Chandler

Neil has been working in IT since 1988 when he coded Assembler and Cobol on IBM Mainframes against both hierarchical (NoSQL-ish) and relational databases. He started using Oracle software in 1991. Neil is an Oracle ACE Director and a founding member of the MASH Program. He likes to drink strong smooth Italian coffee, good beer and better whisky, depending upon the time of day.

Neil has been working in IT since 1988 when he coded Assembler and Cobol on IBM Mainframes against both hierarchical (NoSQL-ish) and relational databases. He started using Oracle software in 1991. Neil is an Oracle ACE Director and a founding member ... Show more

Seema Saharan

Seema Saharan

Meet Seema, the tech whiz at Autodesk. She's not just about fixing things – she loves sharing what she knows! Whether speaking at cool events like GitLab Commit, and GitHub Universe or breaking down tech on her YouTube channel, Seema makes the complicated stuff easy and fun. Join her on a tech adventure where learning and sharing go hand in hand! 🚀

Meet Seema, the tech whiz at Autodesk. She's not just about fixing things – she loves sharing what she knows! Whether speaking at cool events like GitLab Commit, and GitHub Universe or breaking down tech on her YouTube channel, Seema makes the compli... 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.