Most Active Speakers 2025

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

  • 1128 speakers
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Matt Gordon

Matt Gordon

Matt is a Microsoft Data Platform MVP and has worked with Microsoft data technology since 2000 and Azure AI since 2017. He is the leader of the Lexington, KY Data Technology Group and a frequent domestic and international community speaker. He's a Redgate Community Ambassador and an author of two books. His original data professional role was in database development, which quickly evolved into query tuning work as a DBA in the healthcare realm. He has supported several critical systems utilizing SQL Server, Azure SQL, and Microsoft Fabric and managed dozens of 24/7/365 data estates. As a consultant, he works with customers large, medium, and small to migrate to the cloud, make their data estate operate efficiently, and find the right tools and solutions within the Microsoft data & AI ecosystem.

Matt is a Microsoft Data Platform MVP and has worked with Microsoft data technology since 2000 and Azure AI since 2017. He is the leader of the Lexington, KY Data Technology Group and a frequent domestic and international community speaker. He's a Re... Show more

Alex Rostan

Alex Rostan

Microsoft Biz Apps and Data Platform MVP and seasoned technology leader with over 18 years of global experience designing and delivering intelligent solutions across diverse industries. As an AI Solutions Specialist and Power Platform Architect, Alex has been at the forefront of integrating Cognitive Services, developing enterprise-grade chatbots and Copilot solutions, and driving automation through RPA and low-code platforms. His expertise spans cloud architecture on Azure and Microsoft 365, with a strong focus on empowering organizations through innovation, scalability, and user-centric design. A passionate advocate for digital transformation, Alex combines technical excellence with a deep understanding of business needs to create impactful solutions that bridge people and technology.

AI Solutions Specialist / Copilot Studio / Copilot / Power Platform Architect / RPA / Cloud Architect / Azure / M365 /Fabric

Microsoft Biz Apps and Data Platform MVP and seasoned technology leader with over 18 years of global experience designing and delivering intelligent solutions across diverse industries. As an AI Solutions Specialist and Power Platform Architect, Alex... Show more

Brian McKeiver

Brian McKeiver

Brian McKeiver is Co-Owner at BizStream, digital agency in Allendale, MI. At BizStream he is a solution architect, visionary, dual Microsoft Azure MVP (Azure AI and Azure PaaS), Kentico MVP, and Kontent.ai MVP. He has over 24 years of experience leading his agency of more than 40 employees, about a hundred clients spread out across North America, and one heck of an interesting story of how it all started from a two-person team. In addition to his expertise in web development, cloud, integration, and digital marketing, Brian is active with the tech community via his blog at Mcbeev.com.

Brian McKeiver is Co-Owner at BizStream, digital agency in Allendale, MI. At BizStream he is a solution architect, visionary, dual Microsoft Azure MVP (Azure AI and Azure PaaS), Kentico MVP, and Kontent.ai MVP. He has over 24 years of experience lead... Show more

Paul Swider

Paul Swider

30 years building tools that add hours back to a clinician's day
CEO at RealActivity | AI Pioneer | BOSHUG Founder | Microsoft Keynoter

I've spent my career at the intersection of healthcare and technology, not talking about AI transformation, but actually building it. In 2001, I designed a symbolic AI triage engine that eliminated pre-op anesthesia visits and accelerated same-day surgery pathways.

In 2023, my team shipped RealActivity Physician Activity Copilot, the world's first AI harness focused on hospital administration. And 2024, we shipped Wheelhouse, a model fine-tuned on PeopleSoft healthcare operations data and executive prompt workflows.

What happened in between? I trained 3,000+ engineers across GE, IDX, and Microsoft in enterprise software patterns. I migrated 50+ HIPAA workloads to Azure. I built the CMS compliance and activity reporting platforms that health systems still rely on. I earned Microsoft MVP recognition and was named Azure Most Influential, not for evangelism, but for implementation.

Today I'm CEO & Chief AI Officer at RealActivity, a boutique Microsoft partner delivering mission-critical AI for academic medical centers and health systems across the Northeast. Our focus? Tracking system wide clinical time (cFTE), CMS complaint AI, and improving operational efficiency, the problems that keep CMOs and CMIOs up at night. I'm also the founder of OCS Labs, an AI lab building industry-specific AI for government, and sectors where getting it wrong isn't an option.

I founded BOSHUG, the Boston Healthcare Cloud & AI Community, which has grown into a global network serving 40k. I'm a Cloud Wars healthcare AI analyst, a top 3% rated global speaker (Microsoft Ignite, Cloud Wars, and beyond).

Global citizen based in Greater Boston. When I'm not building healthcare AI, you'll find me at a Sicilian bakery arguing about lemon cake, sailing, snowboarding, diving, or planning the next adventure. 114 countries, and counting.

30 years building tools that add hours back to a clinician's day CEO at RealActivity | AI Pioneer | BOSHUG Founder | Microsoft Keynoter I've spent my career at the intersection of healthcare and technology, not talking about AI transformation, bu... Show more

Edward Pollack

Edward Pollack

Ed Pollack is a Microsoft Data Platform MVP with a passion for learning how Data Platforms work and sharing that knowledge with the community. His experiences in data architecture, database design, performance optimization, and security are motivation for public speaking, writing, coding, and other community activities.

Ed has spoken at Day of Data events, SQL Bits, PASS Summit, EightKB, and many other regional and international events. Ed is the organizer of the Capital Region Data Professionals and Day of Data Albany, as well as a co-organizer of SQL Saturday New York City. He has published a number of books, including "Dynamic SQL: Applications, Performance, and Security in Microsoft SQL Server", "Expert Performance Indexing in Azure SQL and SQL Server 2022", and "Analytics Optimization with Columnstore Indexes in Microsoft SQL Server: Optimizing OLAP Workloads". Ed is also an active contributor of content to SimpleTalk.

In his free time, Ed enjoys video games, traveling, cooking exceptionally spicy foods, and hanging out with his amazing wife and sons.

Ed Pollack is a Microsoft Data Platform MVP with a passion for learning how Data Platforms work and sharing that knowledge with the community. His experiences in data architecture, database design, performance optimization, and security are motivati... Show more

Balkrishna Rawool

Balkrishna Rawool

Balkrishna works as an engineering lead at ING Bank. He is a frequent speaker at renowned tech conferences. He has passion for continuous learning and genuine desire to sharing knowledge. Although he has been working with Java for many years, he finds latest developments in Java quite exciting. He is also an Oracle ACE Associate for Java.

Balkrishna works as an engineering lead at ING Bank. He is a frequent speaker at renowned tech conferences. He has passion for continuous learning and genuine desire to sharing knowledge. Although he has been working with Java for many years, he find... Show more

Verónica Rivas Remiseiro

Verónica Rivas Remiseiro

A computer engineer with over 25 years of experience, my profession has fascinated me since I was a child, providing me with wonderful professional and personal experiences 👩‍💻

I enjoy building teams, sharing with them, growing together, and executing projects with the greatest possible success 👌

Enjoying my full return to the world of technology, security, AI, etc., constantly learning and exploring because knowledge is power, in addition to working as an event moderator, speaker, and writer 🚀

Author of my first book based on personal events with a stowaway named Alzheimer's, in homage to the woman who helped me become who I am today 🧠

Passionate about my life, my profession, and technology 💛

A computer engineer with over 25 years of experience, my profession has fascinated me since I was a child, providing me with wonderful professional and personal experiences 👩‍💻 I enjoy building teams, sharing with them, growing together, and exe... Show more

Alexandre Piatetsky

Alexandre Piatetsky

Alexandre is a recognized expert in the Microsoft ecosystem, specializing in Microsoft 365, Copilot, and digital governance. As a Microsoft MVP, he regularly speaks at conferences and community events, sharing real-world experience, best practices, and actionable insights on Microsoft technology adoption.
With over 15 years of experience in solution architecture, project management, presales, and client advisory, Alexandre is passionate about knowledge sharing and collaborative innovation. He is deeply involved in the Microsoft community, helping organizations maximize the value of Microsoft tools while promoting security, compliance, and operational efficiency.
Alexandre is part of the French company Bleu, which owns and operates Microsoft’s first National Partner Cloud. He holds the position of Microsoft 365 Technology Lead there, and helps organizations harness the full potential of Microsoft 365 in a secure, compliant, and sovereign cloud environment.

Alexandre is a recognized expert in the Microsoft ecosystem, specializing in Microsoft 365, Copilot, and digital governance. As a Microsoft MVP, he regularly speaks at conferences and community events, sharing real-world experience, best practices, a... Show more

Sara Alonso Bernardo

Sara Alonso Bernardo

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

Certificada en Microsoft:
- Fabric Data Engineer Associate. DP-700
- Fabric Analytics Engineer Associate. DP-600
- Power BI Data Analyst Associate. PL-300
- Power Platform App Maker Associate. PL-100
- Azure AI Fundamentals AI-900

- Asturiana, amante de los 📊y de los 😸. - Microsoft MVP Data Platform & AI Platform. - Consultora de Data & IA. Certificada en Microsoft: - Fabric Data Engineer Associate. DP-700 - Fabric Analytics Engineer Associate. DP-600 - Power BI Data... 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

Anjuli Jhakry

Anjuli Jhakry

Meet Anjuli Jhakry: A Microsoft MVP and .NET developer at 4DotNet by day and a Microsoft Entra ID explorer by night. I'm navigating the vast ecosystem of Microsoft, always eager to learn. Beyond this, I am passionate about giving presentations and advocating for the incredible potential of tech to everyone.

Meet Anjuli Jhakry: A Microsoft MVP and .NET developer at 4DotNet by day and a Microsoft Entra ID explorer by night. I'm navigating the vast ecosystem of Microsoft, always eager to learn. Beyond this, I am passionate about giving presentations and ad... Show more

Akshata Revankar

Akshata Revankar

20+ Years of experience in data engineering and data reporting space. Have worked with Oracle database, SQL Server, SSIS, Informatica Power Center, Hadoop systems, Qlik and Power BI. Enjoy being in the data space and learning new things.

20+ Years of experience in data engineering and data reporting space. Have worked with Oracle database, SQL Server, SSIS, Informatica Power Center, Hadoop systems, Qlik and Power BI. Enjoy being in the data space and learning new things. Show more

Raphael De Lio

Raphael De Lio

Raphael De Lio is an AI and Software Engineer at Redis with over eight years of experience spanning multiple industries and countries. He is passionate about distributed systems and specializes in Java, Kotlin, and building scalable, high-performance software with a growing focus on reliable, distributed agentic systems.

What drives him is bridging the gap between software engineering and AI engineering, bringing the hard-won knowledge of building distributed, scalable systems into the world of AI where those foundations are often missing but matter most.

Originally from Brazil, Raphael spent six years in Portugal before making the Netherlands his home, where he also helps organize the Dutch Kotlin User Group. He loves blending code, community, and creativity to help developers build better systems faster, and with a lot more fun along the way.

Raphael De Lio is an AI and Software Engineer at Redis with over eight years of experience spanning multiple industries and countries. He is passionate about distributed systems and specializes in Java, Kotlin, and building scalable, high-performance... Show more

Hasan Jamal(Jammy) Siddiqui

Hasan Jamal(Jammy) Siddiqui

I am an experienced AI Automations & Agentic Solutions Architect, Power Automate, Power BI, O365, Azure, and SharePoint professional with 20+ years in the IT industry. Holding PMP, TOGAF® 9, and ITIL certifications, and a Canadian PR holder, I specialize in cloud solutions, enterprise architecture, IT governance, and digital transformation. My expertise spans Power Platform, SharePoint, OneDrive,Teams,DevOps, and AWS/Azure,, empowering businesses to optimize their IT environments and accelerate innovation. As an Application Advisor, I provide strategic guidance on the entire application lifecycle, ensuring that business applications fully align with technical, operational, and governance standards.
Key Skills:
Power Platform, Power BI, Sharepoint, Teams, Azure, DevOps, GitHub/GitLab, Ansible, Jira, Confluence, Jenkins, Maven, SonarQube,Terraform, C#.Net, ServiceNow, SharePoint/Project Server/TFS Migration & Upgrades, Analytics, AWS, Workflows, SSRS Reporting, EMC-SourceOne, MS Flow, Core DevOps,Linux Administration, Microservices, REST APIs, Architecture, and Consulting

• Application Advisor: Provided expert advice on application lifecycle management, ensuring that business applications were optimized and aligned with business objectives, technical specifications, and governance standards.
• Operational Leadership: Managed operations for SharePoint, OneDrive, and Power Platform portfolios, ensuring compliance with Information Governance and IT best practices.
• Vendor & Service Management: Oversaw vendor performance, managed critical incidents, and ensured the delivery of IT services met performance and operational KPIs.
• Application Implementation & Optimization: Configured, implemented, and optimized application solutions to meet business objectives while adhering to IT best practices.
• Business Relationship Management: Built and maintained strong relationships with business stakeholders to ensure operational support.
• Continuous Improvement: Identified opportunities for process improvements and implemented solutions that enhanced service delivery, application performance, and overall efficiency.
• Cross-Functional Collaboration: Worked closely with Solution Architects, Project Managers, and technical teams to ensure successful delivery and seamless service transitions.
• Disaster Recovery & Compliance: Led disaster recovery testing and supported IT compliance efforts (SOX, Cybersecurity, PCI), minimizing disruption during system upgrades and migrations.
• Lifecycle & Asset Management: Managed IT asset lifecycles, including health checks, license management, and optimization.

I am an experienced AI Automations & Agentic Solutions Architect, Power Automate, Power BI, O365, Azure, and SharePoint professional with 20+ years in the IT industry. Holding PMP, TOGAF® 9, and ITIL certifications, and a Canadian PR holder, I specia... Show more

Tony Wilhelm

Tony Wilhelm

Tony Wilhelm has amassed over two decades of experience working with databases and computers. His expertise in SQL server dates back to 1999, showcasing his extensive knowledge in the field. Throughout his career, Tony has held various roles, including DBA, developer, and manager, in both large and small companies spanning multiple industries.

Currently, Tony serves as a senior consultant and technical lead for the Data Management as a Service division at Moser Consulting. In this role, he brings his wealth of experience to the table, providing valuable insights and guidance to drive the implementation of effective solutions.

Tony Wilhelm has amassed over two decades of experience working with databases and computers. His expertise in SQL server dates back to 1999, showcasing his extensive knowledge in the field. Throughout his career, Tony has held various roles, includi... Show more

Alex Merced

Alex Merced

Alex Merced is Head of Developer Relations at Dremio and an author, educator, and open-source developer focused on data lakehouses and AI. He is co-author of *Apache Iceberg: The Definitive Guide* and *Apache Polaris: The Definitive Guide* from O'Reilly Media, and author of *Architecting an Apache Iceberg Lakehouse* from Manning.

Alex speaks internationally about Apache Iceberg, Apache Polaris, open lakehouse architecture, semantic layers, and agentic AI. Through books, open-source projects, courses, podcasts, blogs, and technical videos, he works to make emerging data and AI technologies more accessible while advocating for open and interoperable technology ecosystems.

Alex Merced is Head of Developer Relations at Dremio and an author, educator, and open-source developer focused on data lakehouses and AI. He is co-author of *Apache Iceberg: The Definitive Guide* and *Apache Polaris: The Definitive Guide* from O'Rei... Show more

Richard Harbridge

Richard Harbridge

Richard Harbridge is a Principal Industry Advisor on Microsoft 365 and ShareGate as well as a long-standing Microsoft MVP. Renowned for simplifying the complex, Richard equips IT, executives, and business leaders with three essentials: clarity about Microsoft 365’s evolving capabilities, confidence in responsibly implementing and governing new technologies, and the connections that amplify success across partners, customer communities and Microsoft itself.

Over the past decades he has:
• Advised 200+ enterprises on Microsoft 365 strategy, AI governance and employee experience.
• Delivered 450 + keynotes, workshops and conference sessions across five continents.
• Empowered millions of employees with simpler, more secure Microsoft 365 experiences, while helping partners unlock $300+ million in new revenue.
• Leads CIO think tanks and employee-experience forums while serving on research and community leadership councils shaping the future of work.

Whether architecting AI rollouts, moderating executive roundtables, or writing practical frameworks, Richard’s focus is unwavering: turn technology potential into lasting business impact.

Richard Harbridge is a Principal Industry Advisor on Microsoft 365 and ShareGate as well as a long-standing Microsoft MVP. Renowned for simplifying the complex, Richard equips IT, executives, and business leaders with three essentials: clarity about ... Show more

Eberhard Wolff

Eberhard Wolff

Eberhard Wolff has 20+ years of experience as an architect and consultant - often on the intersection of business and technology. He is Head of Architecture at SWAGLab. As a speaker, he has given talks at international conferences and as an author, he has written more than 100 articles and books e.g. about Microservices and Continuous Delivery. His technological focus is on modern architectures – often involving Cloud, Domain-driven Design, and Microservices.

Eberhard Wolff has 20+ years of experience as an architect and consultant - often on the intersection of business and technology. He is Head of Architecture at SWAGLab. As a speaker, he has given talks at international conferences and as an author, h... Show more

Samir Makwana

Samir Makwana

Samir Makwana empowers enterprises and government agencies to harness the full power of Microsoft Cloud—and especially its cutting-edge AI stack—to build secure, value-driven businesses. With 17 years as a software developer, pre-sales engineer, and solution architect, he’s architected end-to-end IT transformations that blend security, automation, and collaboration.

A true AI evangelist, Samir designs PoCs and production systems leveraging Azure AI services (Cognitive Services, Azure OpenAI, Semantic Kernel), Copilot Studio, and Power Platform AI—applying deep prompt engineering, vector search/RAG patterns, and grounding techniques to deliver next-gen user experiences. He’s integrated generative AI agents into Office 365 and custom apps, automated workflows with Power Automate and Logic Apps, and secured data with Zero Trust and Microsoft Purview.

As Founder & Principal Architect of Cloudtrify Inc., Samir crafts both short- and long-term cloud-native and AI solutions that drive ROI, user adoption, and maintainability—always with responsible AI and compliance top-of-mind.

Samir Makwana empowers enterprises and government agencies to harness the full power of Microsoft Cloud—and especially its cutting-edge AI stack—to build secure, value-driven businesses. With 17 years as a software developer, pre-sales engineer, and ... Show more

Taswar Bhatti

Taswar Bhatti

Taswar Bhatti works for Microsoft as AI Security Cloud Solutions Architect. Prior to his current position he also worked as a Solutions Architect for AWS, his focus areas are security and machine learning. He holds a BSc in Mathematics and Computing Science from University of Alberta, and is well versed in architectural design, security and building large scale security web applications; not to mention he was a Microsoft MVP for 8 years.

Taswar is also fluent in many spoken languages: Cantonese, English, Turkish, and Urdu/Hindi.

Taswar Bhatti works for Microsoft as AI Security Cloud Solutions Architect. Prior to his current position he also worked as a Solutions Architect for AWS, his focus areas are security and machine learning. He holds a BSc in Mathematics and Computing... Show more

Pradeep Sharma

Pradeep Sharma

Pradeep is as old as the internet but he didn’t have reliable access to the electricity or the internet until he entered IIT Roorkee where he studied electronics and programming. His interest in programming grew more after his work as a Computer Science Researcher at L3S Research Center (Germany) and Sabanci University (Istanbul). His newfound passion and early successes propelled him into a career as a developer.

Throughout his 14+ years of career, Pradeep developed applications in diverse domains such as dev productivity, privacy, neural search, authentication, NLP, cryptography, data engineering, etc.

Pradeep founded two startups, authored a book, and published #OpenSourceDiscovery newsletter. For 8 years, Pradeep developed and maintained his key project - Developer Diary, a cross-platform productivity tool for developers. This long-term commitment provided him with deep insights into the evolution of various engineering and community functions. Leveraging these insights, he guided various Open Source organizations to create category-leading developer tools and foster thriving, engaged developer communities.

As a late bloomer in tech from a small town, he witnessed how the internet empowered developers from remote areas to transform their lives. This inspired him to found Invide, an invitation-only community for developers from underserved regions. Drawing from his own journey, the initiative helped over 15000 experienced developers with resources he once lacked.

Pradeep is as old as the internet but he didn’t have reliable access to the electricity or the internet until he entered IIT Roorkee where he studied electronics and programming. His interest in programming grew more after his work as a Computer Scie... Show more

Marco Rocca

Marco Rocca

I'm a Cloud Solution Architect Modern Work and deals mainly (but not only ...) with SharePoint, a product that has been with him for 15 years and has experienced the birth and growth of all the latest versions. However, collaboration is not just SharePoint, but all Microsoft 365 applications that are helping to revolutionize the way we work. Today in my work I support customers to identify the better strategy for adopt new products and technologies. In the last period I'm focusing on Copilot, AI, Power Platform and SharePoint. As a speaker I have participated in several conferences as a speaker among which WPC Milan, Scottish Summit, CollabDays, European Collaboration Summit, European Power Platform Conference, Thrive and more.

I'm a Cloud Solution Architect Modern Work and deals mainly (but not only ...) with SharePoint, a product that has been with him for 15 years and has experienced the birth and growth of all the latest versions. However, collaboration is not just Shar... Show more

Daniel Afonso

Daniel Afonso

Daniel Afonso is a Senior Developer Advocate at PagerDuty, SolidJS DX team member, Instructor at Egghead.io, and Author of State Management with React Query. Daniel has a full-stack background, having worked with different languages and frameworks on various projects from IoT to Fraud Detection. He is passionate about learning and teaching and has spoken at multiple conferences around the world about topics he loves. In his free time, when he's not learning new technologies or writing about them, he's probably reading comics or watching superhero movies and shows.

Daniel Afonso is a Senior Developer Advocate at PagerDuty, SolidJS DX team member, Instructor at Egghead.io, and Author of State Management with React Query. Daniel has a full-stack background, having worked with different languages and frameworks on... Show more

Arnaud Giuliani

Arnaud Giuliani

Arnaud Giuliani is co-founder of Kotzilla (Tech, Vision & Product) and creator of Koin, the most widely adopted dependency injection framework for Kotlin.

With 18 years of experience in software engineering across Java/JVM systems and Android, he has been an active speaker since 2016 with 60+ talks delivered across Europe and the US.

Recognized as a Google Developer Expert for Android & Kotlin and a member of the Kotlin Foundation, he focuses on the intersection of software architecture, developer experience, and AI-driven observability for mobile applications.

Arnaud Giuliani is co-founder of Kotzilla (Tech, Vision & Product) and creator of Koin, the most widely adopted dependency injection framework for Kotlin. With 18 years of experience in software engineering across Java/JVM systems and Android, he... Show more

Juan Moreno Romo

Juan Moreno Romo

I born in IT as a developer. I worked in Data Modelling, as Consultant, Software Architect and Project Manager in a Consultancy Service Company, what leads me to create my own Consultancy Company. I worked on it for almost 15 years till an awesome company, Microsoft, knock my door.
I have delivered training in Developing Technologies, Programming Methodology, Software development process, ALM, different programming languages, Project Managing, Data Modelling, MySQL and SQL among other subjects
Currently I am happily working in Microsoft, based in Madrid (Spain), focused in SQL Server Business as Support Escalation Engineer for SQL Server Core in EMEA.

I born in IT as a developer. I worked in Data Modelling, as Consultant, Software Architect and Project Manager in a Consultancy Service Company, what leads me to create my own Consultancy Company. I worked on it for almost 15 years till an awesome co... Show more

Julia Kordick

Julia Kordick

Julia is a Software Global Black Belt at Microsoft, helping large-scale organizations accelerate dev workflows through pragmatic, end-to-end platform engineering. With a background as a Software Engineer, Dev Lead, and Cloud Solution Architect, she speaks fluent developer and management—and knows how to bridge the gap without losing either side in translation.

She’s a big-picture thinker who also loves to understand the details. Web and frontend will always have a place in her ❤️.

Outside work, Julia is a gamer, a proud fahrradmaus, and a former quarterback for a women’s American football team (yes, really).

Julia is a Software Global Black Belt at Microsoft, helping large-scale organizations accelerate dev workflows through pragmatic, end-to-end platform engineering. With a background as a Software Engineer, Dev Lead, and Cloud Solution Architect, she s... Show more

Peter van Vliet

Peter van Vliet

Peter started his career as a full-stack software developer in 2002 and has since progressed to a lead architect role. Over the course of these 20+ years, he has fulfilled many roles in various industries and gained extensive experience with a wide range of technologies such as Java, C#, JavaScript, and others. Nowadays, he leverages his expertise to assist companies, write articles, and speak at conferences.

His main focus is on making software development more cost-effective and future-proofing applications. Additionally, he has picked up making illustrations as a hobby because he is a strong believer in visual communication. There are no boring slides in any of his presentations.

Peter started his career as a full-stack software developer in 2002 and has since progressed to a lead architect role. Over the course of these 20+ years, he has fulfilled many roles in various industries and gained extensive experience with a wide r... Show more

Erwin Staal

Erwin Staal

I am a Tech Lead and Azure Solution Architect from the Netherlands, with over a decade of experience spanning startups, enterprise organizations, and international teams. I thrive at the intersection of technology, strategy, and leadership, helping companies deliver software to customers using DevOps practices and Cloud-Native architectures.

Being on the line between IT and business is where I feel most at home—creating technical solutions that address real user needs while driving teams toward success. I enjoy coaching and leading teams to embrace new technologies and ways of working, fostering collaboration and continuous improvement.

Outside of my work for clients, I have a passion for sharing knowledge. I am a co-author of Azure Infrastructure as Code (https://www.manning.com/books/azure-infrastructure-as-code), occasionally write blogs, and regularly speak at international conferences.

I am a Tech Lead and Azure Solution Architect from the Netherlands, with over a decade of experience spanning startups, enterprise organizations, and international teams. I thrive at the intersection of technology, strategy, and leadership, helping c... Show more

Krzysztof Kania

Krzysztof Kania

Passionate about leveraging the power of Microsoft 365 ecosystem. Committed to delivering top tier services and solutions that empower productivity. My dedication to staying abreast to the latest tools and maintains a high level of integrity has not only facilitated to transformation through technology but also contributed to the ongoing pursuit of excellence in my field.

Passionate about leveraging the power of Microsoft 365 ecosystem. Committed to delivering top tier services and solutions that empower productivity. My dedication to staying abreast to the latest tools and maintains a high level of integrity has not ... Show more

Clarissa Rodrigues

Clarissa Rodrigues

Clarissa Rodrigues is graduated by University of Vale dos Sinos (UNISINOS), specialist in Software Engineering by Federal University of Rio Grande do Sul (UFRGS) and master student in Applied Computing by UNISINOS. With more than 10 years of IT experience, she has been working in different roles and companies, such as a Business Analyst at SISPRO, ADP, SAP and most current Technical Quality & Program Manager at Uber. On her journey, she has been advocated for quality inside QAs work to make sure goods and services are designed, developed, and made to meet or exceed customers’ expectations and requirements.

Clarissa Rodrigues is graduated by University of Vale dos Sinos (UNISINOS), specialist in Software Engineering by Federal University of Rio Grande do Sul (UFRGS) and master student in Applied Computing by UNISINOS. With more than 10 years of IT exper... 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.