Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Tanya Janca, aka SheHacksPurple, is the best-selling author of 'Alice and Bob Learn Secure Coding’ and 'Alice and Bob Learn Application Security’. She is currently the CEO and secure coding trainer at She Hacks Purple Consulting. Over her 28-year IT ... Show more
Jérôme is a professional coach, agile coach, facilitator and trainer. For 19 years, he has been one of the pioneers who have develop an agile culture within Lectra teams. He is now in charge of a team of internal coaches that he created and who supp... Show more
Bob Walker is a Field CTO Octopus Deploy. Bob started as a developer in the early days of .NET when web forms were the hottest new thing, and manual deployments were the norm. After one too many five-hour 2 AM Saturday deployments, he searched for ... Show more
Spyros has 20 years of experience in the security world. Since the beginning of his career he has been an avid supporter and contributor of open source software and an OWASP volunteer. Currently he is interested in the harmonization of security tools... Show more
Jayshree Ostwal
MVP|Power Platform Solutions Architect |Modern Workplace |MCT | Power Platform/GenAI Product Lead|Microsoft365 Copilot | Azure |
A solutions architect , Microsoft Certified Trainer with a passion for the Power Platform, M365 Copilot, GenAI, Azure technology. Empowering enterprises to thrive with Microsoft Copilot & Modern Workplace AI solution frameworks to solve challenges... Show more
Rajith is an advocate for OpenTelemetry and open source as a member of the Apache Software Foundation. He spends his time experimenting, contributing, and exploring new ways to improve observability. As CTO of Randoli, he’s building an OTel native ob... Show more
Erwin de Kreuk is a passionate and highly experienced Technology Leader in the Data & AI domain. He currently serves as a Principal Consultant and Lead Data and AI at InSpark, winner of the Global Partner of the Year (POTY) Award for Identity and the... Show more
Seyfallah Tagrerout, 12 years of Experience – CEO at STC Consulting SARL Switzerland | Team Lead | Cloud and Security Architect, Microsoft Regional Director | Microsoft MVP Security since 2015, Speaker and book Author. He is extremely highly and... Show more
Juliana Smith is a multi‑award‑winning data and reporting expert with a background in Physical Oceanography. For over 15 years she has explored the stories hidden within data, and since 2020 she has been leveraging Power BI to deliver scalable, high‑... Show more
Scott Shearer is a Microsoft 365 evangelist, Microsoft MVP and MCT. Scott has over 35 years' experience in the IT industry implementing Microsoft products and technologies. He has held positions ranging from systems administrator to developer to trai... Show more
After twenty years in the consulting world, serving as a project manager and scrum master, I decided that I was getting too far away from the code and started taking on small freelance projects. A few years later, I began working exclusively on my... Show more
Nicky van Vroenhoven is a BI professional focused at the Microsoft stack and a Data Platform MVP. He mainly works with Power BI, Power Platform and T-SQL. Nicky started working with SQL Server and SSIS in 2005 in the DWH space, and later moved from P... Show more
Hey guys, my name is Truls and I do security-related stuff mostly detection, automation and security engineering. A little TL;DR on myself: 6 years experience from system- and network-administration, 2 years penetration testing experience and 6 ye... Show more
Vijaykumar Jangamashetti
Googler, Trusted Advisor, Staff Cloud Technical Consulting Architect - Simplifying cloud adoption and driving long-term customer success @ Google
Vijaykumar Jangamashetti (VJ), is a seasoned professional with 18 years of experience in Data Analytics, Cloud, and AI. Currently a Trusted Advisor, Staff Cloud Consulting Architect, and Program Manager at Google, he specializes in guiding customers ... Show more
Roland is a Microsoft MVP, ASP.NET Insider and Pluralsight author enjoying a constant curiosity around new techniques in software development. His focus is on all things .NET and browser technologies. As a long-time trainer and speaker, he led many... Show more
David is the Director of Architecture for NewDay, and the founder of Electric Head Software. Focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations. He speaks about softwar... Show more
Hi, I’m Muhammad Samiullah, a Solution Engineer and a Microsoft Most Valuable Professional (MVP) in Azure and Developer Technologies. I design and deliver secure, scalable cloud and AI solutions, with a focus on automation, cost optimization, and ope... Show more
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
I am Sr Technical Leader in Cisco Customer Experience for Collaboration Technology. Currently focused on Gen AI-based innovation and its impact on the customer experience within Cisco Org. I have been a speaker in Cisco Live and have about 2 pate... Show more
Miguel Félix
Lead BI Architech | Data & AI Solutions | Power BI Enthusiast | Microsoft MVP | Super User Power BI Community
Lead BI Architect, with a background as business analyst with a 20-year experience, data analysis is one of his daily tasks, with Power BI a world of possibilities opened. Super User in the Power BI community since the start of the program back in ... Show more
Mario is from a small village in Germany and working for Kubermatic. He studied creative media at an English university and moved his field of knowledge to Cloud Native Infrastructure. He is working as a Customer Delivery Architect with the focus on ... Show more
Cedric Clyburn (@cedricclyburn), Senior Developer Advocate at Red Hat, is an enthusiastic software technologist with a background in Kubernetes, DevOps, and container tools. He has experience speaking and organizing conferences including Devoxx, WeAr... Show more
Mg. Keyla Dolores Méndez es Arquitecta de Datos con más de diez años de experiencia en analítica, big data e inteligencia artificial. Es Magíster en Business Intelligence e Innovación Tecnológica por la Universitat Politècnica de Catalunya (España) y... Show more
Erland Sommarskog is an independent consultant based in Stockholm. He has worked with SQL Server since 1991. He was first awarded SQL Server MVP in 2001, and he has been re-awarded every year since. His focus is on systems development with the SQL Se... Show more
Andreas spent most of his professional life and a career of over 25 years integrating "backend" applications. First inside or between Enterprises and Startups directly, then - "in the cloud". Before that, Andreas dabbled with Virtual Reality in the ... Show more
Konstantinos is a passionate IT professional and Microsoft Certified Trainer with over two decades of experience in crafting and deploying comprehensive IT solutions. His expertise lies in Microsoft technologies, evident in his Microsoft Azure MVP st... Show more
Kevlin is an independent consultant, trainer, speaker and writer. His development interests and work with companies covers programming, practice and people. He is a contributor to the Modern Software Engineering YouTube channel. Kevlin is also co-aut... Show more
I'm a Dynamics 365 Solution Architect with over 15 years of experience in relevant Microsoft technologies. I have designed, developed, and supported numerous Dynamics 365 implementations globally. My work includes defining standards, guiding distribu... Show more
Chad Green
Sr. Systems Architect at Jasper Engines | Cloud Tech Leader | Microsoft MVP | Speaker & Innovator | USMC Vet | Lego Builder #Tech #Cloud #Community
Chad Green is a visionary Senior Systems Architect at Jasper Engines & Transmissions with over 35 years of expertise in crafting innovative, customer-centric solutions. He is currently leading the migration of legacy systems to cloud-native technolog... Show more
Brian has worked with data and analytics for more than two decades - varying projects on both size and complexity. Now, by combining deep experience with a human approach to data and analytics, and a deep understanding of platform implementations,... 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.