Most Active Speakers 2023

Sessionize proudly presents the list of the most active speakers in the year 2023!

  • 758 speakers
  • Auto-generated
Justin Yoo

Justin Yoo

Justin is a Principal Cloud Advocate at Microsoft and was double-awarded Microsoft MVP in both Azure and Developer Technologies since 2015. He is passionate at serverless technologies, enterprise integration, AI and SRE/DevOps, and tries to find a better way of doing things right and getting things done.

Justin is a Principal Cloud Advocate at Microsoft and was double-awarded Microsoft MVP in both Azure and Developer Technologies since 2015. He is passionate at serverless technologies, enterprise integration, AI and SRE/DevOps, and tries to find a be... Show more

Roberto Corella

Roberto Corella

Since 1998 working with Navision, Dynamics NAV, and now with Business Central and Power Platform. I worked as an end-user, consultant, and developer in different companies and partners.

Dual Microsoft MVP in the Business Applications (Business Central) and Azure AI Services

International Speaker at Directions EMEA, Directions ASIA, Days of Knowledge (Nordic, Central, and Atlanta) and DynamicsMinds.

Organizing committee member "Business Central Day ES" (www.businescentralday.es) and Global Power Platform Bootcamp Zaragoza (https://www.meetup.com/power-platform-zaragoza/)

As an MCT I teach Microsoft courses about Business Central, Power BI, Power Apps, and Power Automate.

I have a blog where I write about these Microsoft technologies: https://blog.msdyn365bc.es.

Also, you can see me telling things about Business Central and Power Platform at different community events and on my YouTube Channel:
Aprende Business Central en Español (https://www.youtube.com/@rcorella)

If you want to know more about me, here you have my LinkedIn profile:
https://www.linkedin.com/in/robertocorella/

Since 1998 working with Navision, Dynamics NAV, and now with Business Central and Power Platform. I worked as an end-user, consultant, and developer in different companies and partners. Dual Microsoft MVP in the Business Applications (Business Ce... Show more

Matthias Haeussler

Matthias Haeussler

Matthias Haeussler is VP Expert at CGI, university lecturer for distributed systems, awarded ambassador of Cloud Foundry and the organizer of the Stuttgart Cloud Foundry Meetup. He advises clients on Cloud strategies and supports implementations and migrations. Prior to that he was employed at IBM R&D Germany for more than 15 years. He has teaching experience from lectures at multiple universities in Stuttgart (DHBW, HSE, HfT). Besides that he is frequent speaker at various national and international conferences and meetups. (e.g. Spring One Platform, Open Source Summit, Cloud Foundry Summit, Spring IO, IBM InterConnect, WJAX).

Matthias Haeussler is VP Expert at CGI, university lecturer for distributed systems, awarded ambassador of Cloud Foundry and the organizer of the Stuttgart Cloud Foundry Meetup. He advises clients on Cloud strategies and supports implementations and ... Show more

Ronni Pedersen

Ronni Pedersen

Ronni is working as a Cloud Architect in Denmark. He has been working as a consultant since 1997 with a primary focus on Enterprise Client Management solutions, based on technologies like Microsoft Intune, Microsoft Configuration Manager, Enterprise Mobility + Security (EMS), Microsoft 365, Windows 11 and Windows 365.
Ronni is also a Microsoft Certified Trainer and Microsoft MVP in Enterprise Mobility and an appreciated speaker at events like Microsoft Campus Days, Microsoft Management Summit (MMS), Microsoft Ignite, Microsoft Techdays, Nordic Infrastructure Conference, Techorama, Workplace Njina Summit and at local User Group events.

Ronni is working as a Cloud Architect in Denmark. He has been working as a consultant since 1997 with a primary focus on Enterprise Client Management solutions, based on technologies like Microsoft Intune, Microsoft Configuration Manager, Enterprise ... Show more

Kateryna Hrytsaienko

Kateryna Hrytsaienko

Hi there, nice to meet you! I’m Kateryna 👋

I’m a Senior Software Engineer, Security Champion, and MLOps stan. My mission? De-gatekeeping machine learning operations and making them actually accessible for every developer. After playing the field with Azure and AWS, I’ve officially caught feelings for GCP☁️✨

When I’m not deep in the codebase, I’m leading GDG Kyiv, repping as a Women Techmakers Ambassador, or lecturing at KPI and KSE. Whether I’m helping students ship production-ready Java/Spring Boot architectures or dropping deep dives on Medium(https://medium.com/@ekatereanagricaenko), I’m here for the community, the mentorship, and the "more is more" approach to impact 🚀🔥

Hi there, nice to meet you! I’m Kateryna 👋 I’m a Senior Software Engineer, Security Champion, and MLOps stan. My mission? De-gatekeeping machine learning operations and making them actually accessible for every developer. After playing the field ... Show more

Andrea Dottor

Andrea Dottor

Andrea Dottor, I am a consultant, developer, and trainer in the .NET field (primarily ASP.NET and Blazor), author of the podcast 📢 '.NET in Pillole,' and a 🏆 Microsoft MVP since 2008.

I am one of the founding members of XE - Development User Group (XeDotNet).

I began my journey in software development in 2002 using the .NET Framework in the industrial automation sector, later transitioning to the web world in 2005, a field that has fascinated me and continues to provide new challenges and opportunities for growth.

Andrea Dottor, I am a consultant, developer, and trainer in the .NET field (primarily ASP.NET and Blazor), author of the podcast 📢 '.NET in Pillole,' and a 🏆 Microsoft MVP since 2008. I am one of the founding members of XE - Development User Gro... Show more

Federico Porceddu

Federico Porceddu

Federico Porceddu is a Microsoft MVP in the Microsoft 365 category, recognized for his contributions to Microsoft 365 Development and Copilot Extensibility. With 15+ years of experience, he works as a Modern Workplace Solution Architect at Avanade Italy, where he designs and delivers enterprise solutions built on Microsoft 365, SharePoint, and Copilot, blending Microsoft and open-source technologies. He is also co-host of the Copilot Espresso podcast and an active contributor to the Microsoft 365 PnP (Patterns & Practices) community. An engaged community leader, Federico is an international speaker, technical writer, blogger, and podcaster, passionate about making technology accessible and empowering developers. After several years working abroad, he now lives in Sardinia, where he brings innovation closer to home. When he’s not speaking about tech, he can be found trekking, with a great cup of coffee never too far away.

Federico Porceddu is a Microsoft MVP in the Microsoft 365 category, recognized for his contributions to Microsoft 365 Development and Copilot Extensibility. With 15+ years of experience, he works as a Modern Workplace Solution Architect at Avanade It... Show more

Dennis Doomen

Dennis Doomen

Dennis is a Microsoft MVP and Principal Consultant at Dutch Microsoft consultancy firm Aviva Solutions. With 29 years of experience under his belt as a software architect and/or lead developer, he specializes in designing full-stack enterprise solutions based on .NET as well as providing coaching on all aspects of designing, building, documenting, deploying and maintaining software systems in an agile world. He is the author of several open-source projects, including Fluent Assertions, Pathy, Reflectify, PackageGuard, and several .NET Solution Templates, and has been maintaining coding guidelines for C# since 2001. You can find him on Twitter, Mastodon and BlueSky.

Dennis is a Microsoft MVP and Principal Consultant at Dutch Microsoft consultancy firm Aviva Solutions. With 29 years of experience under his belt as a software architect and/or lead developer, he specializes in designing full-stack enterprise soluti... Show more

Saeid Dahl

Saeid Dahl

Saeid Dahl is a Microsoft Azure and AI MVP, Microsoft Learn Learning Expert, Microsoft Certified Trainer, international speaker, and community leader with more than 18 years of experience in the IT industry.

He is currently Head of Public Cloud and AI at Upheads, where he leads cloud and AI strategy, solution architecture, technical enablement, and team development. His work focuses on Microsoft technologies, especially Azure, Azure Arc, automation, hybrid cloud, cloud adoption, infrastructure modernization, and AI-driven solutions.

Saeid is also an active leader in the Microsoft community. He serves as a board member of Microsoft Zero To Hero, MSFarsi, and Global Azure, helping foster learning, collaboration, and knowledge-sharing across a growing network of more than 7,000 members.

Recognized for his strong expertise in PowerShell, automation, integration, and Azure architecture, Saeid helps organizations design scalable, secure, and practical cloud solutions. His experience spans Azure design, cloud adoption strategy, hybrid and multi-cloud environments, enterprise-scale architecture, governance, security, and operational excellence.

With a genuine passion for sharing knowledge, Saeid regularly speaks at conferences, community events, and technical sessions. He is committed to mentoring professionals, empowering communities, and helping individuals and organizations make better use of Microsoft cloud and AI technologies.

Through continuous learning, hands-on experience, and active community contribution, Saeid Dahl brings a practical, people-focused approach to technology, innovation, and cloud transformation.

Saeid Dahl is a Microsoft Azure and AI MVP, Microsoft Learn Learning Expert, Microsoft Certified Trainer, international speaker, and community leader with more than 18 years of experience in the IT industry. He is currently Head of Public Cloud an... Show more

Suzanne Daniels

Suzanne Daniels

Suzanne helps senior executives make confident decisions about software engineering. As a Chief Developer Advisor at Microsoft, she partners with CxOs, VPs and other engineering leaders across EMEA to help engineering organisations in their end‑to‑end AI transformation.

She's author of the book Ghost Decisions, the Agentile operating model and the ISEE framework. She's maintainer of git-ape She writes her industry observations and thoughts on Substack.

Suzanne helps senior executives make confident decisions about software engineering. As a Chief Developer Advisor at Microsoft, she partners with CxOs, VPs and other engineering leaders across EMEA to help engineering organisations in their end‑to‑en... Show more

Namrata Agrawal

Namrata Agrawal

Namrata Agrawal is a technology professional and speaker exploring the intersection of AI, sustainability, and digital innovation. She is passionate about how emerging technologies can solve real-world challenges and create meaningful business and societal impact. Her speaking interests include AI, digital transformation, sustainability, accessibility, emerging technologies, and responsible innovation.

Namrata Agrawal is a technology professional and speaker exploring the intersection of AI, sustainability, and digital innovation. She is passionate about how emerging technologies can solve real-world challenges and create meaningful business and so... Show more

Erwin de Kreuk

Erwin de Kreuk

Erwin de Kreuk is an experienced Technology Lead for Data at InSpark, a Microsoft partner recognized as Global Partner of the Year for Identity and Dutch Partner of the Year for Data & AI.
With 16 years of experience on the Microsoft Data Platform, including 8 years focused on Azure and Microsoft Fabric, Erwin helps organizations define and execute their data and AI strategy. His focus is on building scalable, secure, and future‑proof data platforms that enable analytics, operational excellence, and AI‑driven innovation.

Erwin is a Microsoft Data Platform MVP and a frequent speaker at national and international conferences, where he shares strategic insights on modern data platforms, platform engineering, and the role of data foundations in successful AI initiatives.
As a member of the Technology Board at InSpark, Erwin provides technical leadership across the data domain, guiding senior consultants and shaping the company’s data platform vision. He is closely involved in translating Microsoft’s roadmap into practical, enterprise‑ready solutions and advising customers on modernizing complex analytics landscapes.
Erwin is also a key stakeholder in InSpark’s managed data platform offerings, including Oxygen (Modern Data Platform as‑a‑Service) and the ISV Solution Nitrogen Control Center, a Microsoft Fabric–native solution focused on scalable data integration and processing.
His core belief: AI success is driven by strong leadership decisions and a solid data foundation, not by models alone.

Erwin de Kreuk is an experienced Technology Lead for Data at InSpark, a Microsoft partner recognized as Global Partner of the Year for Identity and Dutch Partner of the Year for Data & AI. With 16 years of experience on the Microsoft Data Platform, ... Show more

Ivan Pesenti

Ivan Pesenti

I'm Ivan Pesenti. A passionate gopher who has been working in the software industry since 2014.

I'm a software engineer focused on server-side programming. Throughout my career, I've always been accompanied by two obsessions: testing and writing secure code. I consider myself a detail-oriented person.

My career took a turning point in 2021 when the Go programming language crossed my path. Since then, I've fallen in love with it.

I believe in empathy, kindness, mutual help, growth, determination, and trust. These values have led me to give back to the community through speaking, coaching, writing, and more. Helping others is one of the most satisfying experiences I've ever had.

During my free time, I train my body, play football, watch anime, and hang out with family and friends.

One of my favorite quotes is: "Hard work beats talent."

I'm Ivan Pesenti. A passionate gopher who has been working in the software industry since 2014. I'm a software engineer focused on server-side programming. Throughout my career, I've always been accompanied by two obsessions: testing and writing s... Show more

Chris Ayers

Chris Ayers

Chris Ayers is a Principal Software Engineer at Microsoft, where he builds AI-driven tooling to analyze outages and incidents across Azure. His work focuses on improving the way engineers understand failures, uncover risks, and strengthen reliability at cloud scale.

With a background spanning DevOps, cloud architecture, and modern application design, Chris brings both engineering depth and practical experience to the challenge of making large systems more resilient. He’s also a frequent international speaker who loves sharing real-world lessons about developer productivity, reliability, containers, and automation.

Outside of work, Chris is a proud dad, lifelong gamer, avid reader, and unapologetic nerd.

Chris Ayers is a Principal Software Engineer at Microsoft, where he builds AI-driven tooling to analyze outages and incidents across Azure. His work focuses on improving the way engineers understand failures, uncover risks, and strengthen reliability... Show more

David Patrick

David Patrick

For more than three decades, Dave has been building database‑driven applications, teaching developers, and energizing technical communities. A Microsoft Certified Trainer since 2001 and an eight‑time Microsoft MVP, he’s known for making complex topics click.

Dave runs three active user groups—MAD SharePoint, MACEME, and the Baltimore Cloud Meetup—where he brings people together across the SharePoint, cybersecurity, and cloud ecosystems.

At DSA, Inc., Dave supports U.S. Army missions at Aberdeen Proving Ground through SharePoint training and custom application development. His certification wall includes MCSD App Builder, MCSE for SharePoint, and MCSA SQL Server.

When he’s not building solutions, he’s teaching the next generation of technologists at UMD’s iSchool, Towson University, and Stevenson University.

He also co‑hosts PatrickPerspective.com, where he and his daughter Sarah share their sometimes‑aligned, sometimes‑hilariously‑different takes on technology.

For more than three decades, Dave has been building database‑driven applications, teaching developers, and energizing technical communities. A Microsoft Certified Trainer since 2001 and an eight‑time Microsoft MVP, he’s known for making complex topic... Show more

Shari Oswald

Shari Oswald

They call me Shortcut Shari...Why? I believe we should all work smarter, not harder and I love keyboards shortcuts. I've been using SharePoint since before it was even called SharePoint and I'm excited to share my knowledge and expertise who are as excited as technology as I am. I know stuff and I love to SHARE it!

My focus is the "People Side of Change". As a Microsoft 365 Solutions Architect and Consultant that grew up right along with SharePoint, my practical knowledge of the Microsoft Productivity stack coupled with my passion for empowerment via learning makes me an excellent resource as a consultant and evangelist for Microsoft 365. My philosophies for information architecture and SharePoint design are centered on solving business challenges with technology and ensuring usability and adoption for the organization.

As for my experience, I'm a Microsoft Certified Trainer, a Microsoft Certified Specialist Master, consultant, presenter, author and evangelist. When I'm not architecting SharePoint magic as a consultant, I'm in the classroom or creating online learning for LinkedIN Learning, ClipTraining.com and Pluralsight. Join me for my sessions, I promise they will not only be informative, but they will also be FUN!

They call me Shortcut Shari...Why? I believe we should all work smarter, not harder and I love keyboards shortcuts. I've been using SharePoint since before it was even called SharePoint and I'm excited to share my knowledge and expertise who are as ... Show more

Ed Charbeneau

Ed Charbeneau

Ed is a Microsoft MVP and an international speaker, writer, online influencer, a Developer Advocate for Progress, and expert on all things web development. Ed enjoys geeking out to cool new tech, brainstorming about future technology, and admiring great design.

Ed has shared his insights, experiences, and advice around collaboration, knowledge management, social computing, and training at many industry events around the United States. Highly ethical and engaging with an uncanny business acumen, he is a creative community builder and outside the box thinker. Long term business relationships throughout the world within internal communications, employee engagement and marketing as well as IT. Focusing on Financial, Healthcare, Manufacturing, Agency and Professional Services. He has defined, architected, implemented line of business solutions with a touch of style and UX best practices.

Ed is a Microsoft MVP and an international speaker, writer, online influencer, a Developer Advocate for Progress, and expert on all things web development. Ed enjoys geeking out to cool new tech, brainstorming about future technology, and admiring gr... Show more

Sara Fennah

Sara Fennah

Sara has over 25 years’ experience, has been a Microsoft Certified Trainer (MCT) for over 15 years and is also a MCT Community Lead and Microsoft MVP (Most Valuable Professional) for Microsoft 365.

Sara has been working with Microsoft 365 since the preview in April 2011 and holds over 50 Microsoft Certifications. Sara’s company still use the same Microsoft 365 Tenant opened back in 2011.

As a trainer Sara’s professional aim is to help make technology more accessible by increasing knowledge and decreasing fear. In her own words “I love helping others advance their own skills and use of technology, whilst challenging myself to advance my own skills and expertise.”

Sara delivers training across Microsoft 365 from beginner to admin level, specialising in productivity, data security, and compliance. She is a recognised expert in Microsoft 365 Copilot, having authored multiple courses and supported organisations with adoption strategies and governance planning.

Sara has over 25 years’ experience, has been a Microsoft Certified Trainer (MCT) for over 15 years and is also a MCT Community Lead and Microsoft MVP (Most Valuable Professional) for Microsoft 365. Sara has been working with Microsoft 365 since th... Show more

Jean Joseph

Jean Joseph

Jean Joseph is a seasoned consultant and senior technical trainer specializing in data engineering and artificial intelligence. With a strong background in database design, administration, and cutting-edge data technologies including machine learning and generative AI.

He helps organizations build secure, scalable solutions across both legacy systems and modern cloud platforms. Formerly recognized as a Microsoft MVP and senior technical trainer at Microsoft, Jean brings deep technical insight and a passion for teaching.

He’s also a dynamic speaker, mentor, and the founder of the Cloud Data Driven User Group and the Future Data Driven Summit, where he champions innovation and promotes responsible use of emerging tech within the data community.

Jean Joseph is a seasoned consultant and senior technical trainer specializing in data engineering and artificial intelligence. With a strong background in database design, administration, and cutting-edge data technologies including machine learning... Show more

Andy Cutler

Andy Cutler

I am an Azure Data Platform professional working predominantly with Azure Synapse Analytics (SQL Pools), Data Factory, SQL Server and Power BI. I hold an MSc in Business Intelligence and Data Mining. I am a current Microsoft Data Platform MVP.

I am an Azure Data Platform professional working predominantly with Azure Synapse Analytics (SQL Pools), Data Factory, SQL Server and Power BI. I hold an MSc in Business Intelligence and Data Mining. I am a current Microsoft Data Platform MVP. Show more

Zaid Zaim

Zaid Zaim

As a Developer Advocate at Neo4j, I help developers harness the power of graph technology and AI. A Microsoft MVP and global speaker at events like TED, Microsoft Build, and WeAreDevelopers, I focus on making complex tech accessible through content, community, and hands-on support. My mission is to connect, empower, and inspire developers to build impactful solutions.

As a Developer Advocate at Neo4j, I help developers harness the power of graph technology and AI. A Microsoft MVP and global speaker at events like TED, Microsoft Build, and WeAreDevelopers, I focus on making complex tech accessible through content, ... Show more

Danilo Dominici

Danilo Dominici

Danilo Dominici is a senior consultant, speaker, and author specializing in SQL Server since version 6.5, mostly in the design, implementation, monitoring, and performance tuning of SQL Server-based solutions, both on-premise and in the cloud (Azure/AWS). He is also specializing in PostgreSQL performance tuning, high availability and monitoring. Danilo is a Microsoft Certified Trainer since 2000, a 6-times Data Platform MVP (2014-2020) - now MVP Alumni, an active member of UGISS (the Italian SQL Server User Group), and has been the co-leader of the PASS Global Italian Virtual Chapter. He wrote some of the chapters of the Microsoft SQL Server 2012 and 2014 Upgrade Guides and co-authored the book "Azure Data Solutions: an Introduction" published by Microsoft Press.

Danilo Dominici is a senior consultant, speaker, and author specializing in SQL Server since version 6.5, mostly in the design, implementation, monitoring, and performance tuning of SQL Server-based solutions, both on-premise and in the cloud (Azure/... Show more

Michiel Hamers

Michiel Hamers

Hi, I’m Michiel Hamers, a Principal Cloud Expert, Implementation Manager, Trainer, and former Microsoft MVP with over 25 years of experience in the Microsoft ecosystem.

Since 2000, I’ve been helping organizations successfully adopt and optimize Microsoft technologies, with a focus on Azure, cloud architecture, performance, and cost management. As a Microsoft Certified Trainer (MCT) and experienced consultant, I bridge strategy and execution, guiding both public and private sector teams through complex technical transformations.

I regularly speak at international conferences such as Developer Week, PowerShell + DevOps Global Summit, Global Azure, AzConf Chennai, Azure Fest, DevConf APG, FutureTech, and Dutch Cloud Meetup. I’m passionate about delivering hands-on workshops and tailored in-company trainings, helping teams sharpen their Azure, automation, and application lifecycle skills.

My mission is clear: help people and organizations get the most out of the cloud, with control, clarity, and confidence. Whether coaching colleagues, giving workshops, or advising on cloud-native modernization, I combine deep technical knowledge with a pragmatic, people-focused approach.

When I’m not working, I enjoy life with Sandra, cooking, traveling, and spending time with family and friends. For me, technology is about empowering people, not just systems.

Let’s connect and build something great together.

Hi, I’m Michiel Hamers, a Principal Cloud Expert, Implementation Manager, Trainer, and former Microsoft MVP with over 25 years of experience in the Microsoft ecosystem. Since 2000, I’ve been helping organizations successfully adopt and optimize Mi... Show more

Chirag Patel

Chirag Patel

Chirag is an Independent Consultant & Trainer at Patel Consulting, based in London UK, focusing on enabling secure & compliant collaboration and productivity solutions in organisations using Generative AI, Microsoft 365 and Purview technologies.

With over 25 years of experience in technology professional services and training delivery, Chirag’s career spans from database development & administration, implementing collaboration & information management solutions to cloud deployments & migrations. Key roles include, Product Owner, Solution Architect & Engineer specialising hands-on delivery of technical solutions with demonstrated results in designing & implementing secure, reliable, scalable and fault tolerant mission critical enterprise solutions. Chirag’s contributions extends to various channels and partners on practical consultancy, classroom training, and personalised training with clients in many sectors, he establishes himself as leader and problem solver on projects for broad adoption of tech and is also a regular speaker at community events.

Chirag holds MSc in Business Systems Analysis & Design and is a Microsoft Certified Trainer (MCT), TOGAF Certified Architect, BCS Chartered IT Professional and a recipient of Microsoft MVP award every year since 2020. He is also an Approved Chartered Membership Assessor at BCS (British Computer Society).

Chirag is an Independent Consultant & Trainer at Patel Consulting, based in London UK, focusing on enabling secure & compliant collaboration and productivity solutions in organisations using Generative AI, Microsoft 365 and Purview technologies. W... Show more

Javier Villegas

Javier Villegas

Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with 30 years of experience working with SQL Server, Including Azure SQL.
His specialization is Administration, Performance Tuning, High Availability and Disaster Recovery.
Javier is a Microsoft MVP Data Platform since 2016 and MCT
He is a frequent speaker in technical conferences and events such as SQL Saturdays, PASS Virtual Groups, PASS Marathons, 24 Hours SQL PASS , vOpen , GroupBy , Data Saturdays and Azure Global Bootcamps.
He is one of the group leaders of SQL Argentina Community and former Microsoft Azure Data Advisory Board Member

Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with 30 years of experience working with SQL Server, Including Azure SQL. His specialization is Administration, Performance Tuning, High Availability and Disaster ... Show more

Samuel Shaw

Samuel Shaw

Sam has been in the technology space professionally for a decade after dabbling as a developer while working in academia. His spare time is spent trying new things or in the gym fighting. Most recently the focus being Krav Maga and Kung Fu.

Sam has been in the technology space professionally for a decade after dabbling as a developer while working in academia. His spare time is spent trying new things or in the gym fighting. Most recently the focus being Krav Maga and Kung Fu. Show more

David Whitney

David Whitney

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 software design, culture, and ethics in technology - rounded out by an assortment of talks about software that probably doesn't need to exist but makes the world a little more fun. David has previously served as the chief coding technical architect for JustGiving and helped market-leading organisations including JUST-EAT, Trainline and Vodafone improve their technical capabilities.

David is a Microsoft MVP, has been part of the OpenUK Honours list for open-source advocacy, and is a twice bestselling author of children's books about programming.

You can find his open-source projects on NuGet, npm and GitHub, follow him on Twitter @david_whitney, or check out his technical blog at http://www.davidwhitney.co.uk/Blog.

http://www.electricheadsoftware.com
http://www.davidwhitney.co.uk

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

Lemon 🍋

Lemon 🍋

With a lifelong passion for the weirdness of the internet and a day job as a development lead for whoever hired him, Lemon spends his professional time making websites for money and his free time making websites for no money.

He's created a number of stupid things for the internet, like all the games on kinda.fun, the wikiHow guessing game damn.dog, the Google Autocomplete game idiots.win, and a bunch of other things of questionable use. He also hosts a podcast that looks at some of the internet's weirder subcultures. It is not safe for your work, unless you work somewhere really cool.

With a lifelong passion for the weirdness of the internet and a day job as a development lead for whoever hired him, Lemon spends his professional time making websites for money and his free time making websites for no money. He's created a number... Show more

Jeferson Fernando

Jeferson Fernando

From humble beginnings in Brazil, Jeferson has reshaped his life via open-source, significantly impacting his family. With 20 years of OSS experience, he advocates for open-source, knowledge-sharing, and community growth. He runs a YouTube channel with 99k subscribers. His initiatives like "Chama as Mina" have trained 4000+ women in tech skills, and another program has empowered 1000+ black individuals with Docker, K8s, and Istio expertise. Jeferson holds CKA, CKAD, and RHCE certifications.

From humble beginnings in Brazil, Jeferson has reshaped his life via open-source, significantly impacting his family. With 20 years of OSS experience, he advocates for open-source, knowledge-sharing, and community growth. He runs a YouTube channel wi... 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

Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers.

Most Active Speakers 2023

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 2023.

The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2023. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 25 thousand unique accepted speakers this year, the 3% is 771. 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 2023. 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.