Most Active Speakers 2023

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

  • 756 speakers
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Marcel de Vries

Marcel de Vries

Marcel is the co-founder and Global MD & CTO Xebia Microsoft Services. Xebia Microsoft Services started as an individual company under the Xebia group in 2014 and provides high-end consulting services to companies on Microsoft Azure, DevOps, Cloud Native Software Development, and Managed Services.

Marcel spends most of his time working with organizations to deliver software to production multiple times a day in a secure and compliant way! He helps organizations and leadership teams move to become high-speed, innovative, and productive while still being secure and compliant.

Marcel loves to learn new technologies and use this to advance his customers. He shares his learnings at conferences and training. Marcel has the conviction the CEO title in technology companies should have a second meaning: Coding Executive Officer. This is driven by his strong belief that great leaders in tech need to be technical! Only by staying on top of technology, you can lead the way going forward.

Marcel is a frequently asked public speaker at well-known industry events like Microsoft //Build, Microsoft Ignite, Azure Lowlands, Visual Studio Live!, Techorama, and KCDC, to name a few.

Marcel is part of the Techorama board and helps organize this event in Europe. In his spare time, he also builds online courses for Pluralsight. You can find his courses here: https://app.pluralsight.com/profile/author/marcel-devries

Marcel has been awarded by Microsoft the Microsoft MVP award for more than 17 consecutive years and has been a Microsoft Regional Director since 2008. You can always contact him to talk about subjects like Cloud Adoption Strategies, Business Development, DevOps, Cloud Computing, Microservices, Containers, IaaS, PaaS, and SaaS.

Marcel is the co-founder and Global MD & CTO Xebia Microsoft Services. Xebia Microsoft Services started as an individual company under the Xebia group in 2014 and provides high-end consulting services to companies on Microsoft Azure, DevOps, Cloud Na... Show more

Jeremy Clark

Jeremy Clark

Jeremy helps developers by sharing his own struggles, mostly in technology, but also with being more social as an introvert, understanding potential for learning, and playing banjo. He has worked as a corporate developer, as a Chief Improvement Officer at a startup, and as a contract developer. Currently, he teaches developers through online courses, workshops, tech articles, and conference talks. He spends most of his time in C# and has recently ventured into Go (golang) and Rust (rust-lang) to explore some of his favorite topics: interfaces, delegates, concurrency, and parallel programming.

Jeremy helps developers by sharing his own struggles, mostly in technology, but also with being more social as an introvert, understanding potential for learning, and playing banjo. He has worked as a corporate developer, as a Chief Improvement Offic... Show more

JJ Asghar

JJ Asghar

JJ works as a Developer Advocate representing IBM worldwide. He mainly focuses on open-source AI and OpenShift, trying to help companies and users successfully onboard to the Cloud-Native ecosystem. He’s also known in the DevOps tooling ecosystem and generalized Linux communities. If he isn’t building automation to streamline his work, he’s building the groundwork to do just that.

He lives and grew up in Austin, Texas. A father and husband, trying to learn to balance his natural nerdiness with family life. He enjoys a good strong dark ale, hoppy IPA, some team-building Artemis, and epic Gloomhaven campaigning.

He has recently dove headfirst into Fedora since IBM bought Redhat, but still secretly wants FreeBSD everywhere. He’s always trying to become a better web technology developer, though he normally just uses bash to get the job done.

JJ works as a Developer Advocate representing IBM worldwide. He mainly focuses on open-source AI and OpenShift, trying to help companies and users successfully onboard to the Cloud-Native ecosystem. He’s also known in the DevOps tooling ecosystem an... Show more

Renuka Kelkar

Renuka Kelkar


Renuka Kelkar is a trailblazing figure in the tech industry, known for her multifaceted roles as Co-Founder of ARNA Genext Solutions, Google Developer Expert for Flutter and Dart, and Founder of the TechPowerGirls Community. With a passion for fostering diversity and inclusion, she serves as an organizer for GDG London and a WomenTechmaker ambassador. Renuka's impactful contributions were recognized with the prestigious Diversity and Inclusion Award from Google in 2023. Her dynamic speaking prowess has earned her the prestigious title of Most Active Speaker for the past two years consecutively on Sessionize, cementing her reputation as a driving force in the tech community.

Renuka Kelkar is a trailblazing figure in the tech industry, known for her multifaceted roles as Co-Founder of ARNA Genext Solutions, Google Developer Expert for Flutter and Dart, and Founder of the TechPowerGirls Community. With a passion for fost... Show more

Ahmed Tikiwa

Ahmed Tikiwa

Ahmed Tikiwa is a Senior Software Engineer at Disney and a Google Developer Expert for Android with over 12 years of software engineering experience and possesses a strong passion for developing world-class applications that can help make a difference. He has experience in frontend and backend systems, where he has built enterprise solutions for major telecommunication companies. He is currently a Senior Software Engineer based in Utrecht, The Netherlands, and an official contributor to Google Developers Dev Library.

Ahmed Tikiwa is a Senior Software Engineer at Disney and a Google Developer Expert for Android with over 12 years of software engineering experience and possesses a strong passion for developing world-class applications that can help make a differenc... Show more

David Ortinau

David Ortinau

David is a Principal Product Manager for .NET at Microsoft, focused on .NET MAUI. A .NET developer since 2002, and versed in a range of programming languages, David has developed web, environmental, and mobile experiences for a wide variety of industries. After several successes with tech startups and running his own software company, David joined Microsoft to follow his passion: crafting tools that help developers create better app experiences. When not at a computer or with his family, David is running through the woods.

David is a Principal Product Manager for .NET at Microsoft, focused on .NET MAUI. A .NET developer since 2002, and versed in a range of programming languages, David has developed web, environmental, and mobile experiences for a wide variety of indust... Show more

Eric Berg

Eric Berg

Eric is Microsoft MVP for Microsoft Azure and for Cloud and Datacenter Management. He is the owner of Mountain IT. His main areas are: Microsoft Azure, Cloud Governance, Automation, Hybrid Infrastructure, Windows Server and Management Solutions.

Eric is an active member of the Microsoft community. He is blogging on his website www.ericberg.de on a regular basis. He produces the GeekSprech Podcast and the GeekSchau Webcast. He runs the Azure Thüringen Meetup in Germany, with more than 400 members and monthly meetups. He is a well known and high rated speaker at conferences like Microsoft Ignite, MVP Summit, Microsoft Ignite The Tour, ExpertsLive, Azure Saturday, Cloud and Datacenter Conference, and many more.

Eric is also a trainer on LinkedIn Learning, providing video trainings around Microsoft Azure.

His motto:
"The community lives from the community and only those who participate keep it alive.!"

Eric is Microsoft MVP for Microsoft Azure and for Cloud and Datacenter Management. He is the owner of Mountain IT. His main areas are: Microsoft Azure, Cloud Governance, Automation, Hybrid Infrastructure, Windows Server and Management Solutions. E... Show more

George Hantzaras

George Hantzaras

George is a distributed systems expert and a hands-on engineering leader. He is a Director of Engineering at MongoDB, focusing on implementing cloud native technologies at enterprise scale. He is an Ambassador of the Data on Kubernetes community and the author of The Platform Engineering Playbook, by Packt. Most recently, he has been a speaker at global events like Kubecon, OpenSource Summit, Hashiconf, LeadDev, SaaStr, and more.

George is a distributed systems expert and a hands-on engineering leader. He is a Director of Engineering at MongoDB, focusing on implementing cloud native technologies at enterprise scale. He is an Ambassador of the Data on Kubernetes community and ... Show more

Joy Apple

Joy Apple

Joy Apple is a Microsoft MVP and Director of Partner and Customer Success at Orchestry.
As a seasoned information technologist, Joy strives to ensure technology is implemented with a purpose-driven, “human-first” approach. Teaching is one of her passions, and Joy finds personal and professional fulfillment volunteering in the Microsoft Community, speaking and educating others on best practices for success with Microsoft 365.
During her time as a SharePoint/Microsoft 365 consultant and trainer Joy has had the opportunity to work across industries, including government and our armed services.
When Joy isn’t working with the Orchestry team or speaking or writing as the “Joy of SharePoint,” she can probably be found at a music venue or the newest fun spot in Tulsa, Oklahoma.

Joy Apple is a Microsoft MVP and Director of Partner and Customer Success at Orchestry. As a seasoned information technologist, Joy strives to ensure technology is implemented with a purpose-driven, “human-first” approach. Teaching is one of her pa... Show more

Rachel Appel

Rachel Appel

Rachel currently works for JetBrains as a Developer Advocate. She has been in the business of creating software for over 25 years, as an author, mentor, and speaker at top industry conferences such as Techorama, //build, Øredev, NDC and SDD. During her career, she has worked on projects of all sizes from the smallest of apps, to the largest enterprise systems at some of the world’s leading companies.

Rachel’s expertise is in web development on the Microsoft stack, specifically Azure Functions, ASP.NET MVC, Web Forms, SignalR, C#, HTML, CSS, JavaScript, and TypeScript. Her hobbies include science, AI, reading, languages, and travel.

Rachel currently works for JetBrains as a Developer Advocate. She has been in the business of creating software for over 25 years, as an author, mentor, and speaker at top industry conferences such as Techorama, //build, Øredev, NDC and SDD. During h... Show more

Manuel Sanchez Rodriguez

Manuel Sanchez Rodriguez

Director - Azure App Modernisation at NTT DATA | Microsoft MVP Azure & AI Platform.
Passionate about new technologies, highlighting Netcore , Microsoft Azure, Xamarin, IA, Bots and ASP.NET. Passionate about team management. I contribute to the developers community writing articles in my personal blog and giving speeches in numerous events. I am also one of the Netcoreconf leads.

Director - Azure App Modernisation at NTT DATA | Microsoft MVP Azure & AI Platform. Passionate about new technologies, highlighting Netcore , Microsoft Azure, Xamarin, IA, Bots and ASP.NET. Passionate about team management. I contribute to the deve... Show more

Hannes Lagler-Gruener

Hannes Lagler-Gruener

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years.
Hannes is focusing on cloud architecture and security.
Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his carrier at one of the biggest Austrian banks and changed to Microsoft Austria after a few years.
Currently, Hannes is working at ACP IT Solutions GMBH as Lead-Cloud Solutions Architect.

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years. Hannes is focusing on cloud architecture and security. Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his... Show more

Marco Obinu

Marco Obinu

Curious by nature, talkative geek who can speak in front of a public or a camera, in love with technology, especially Azure and SQL Server.
I want to understand how things work and to solve problems by myself during work as in my many hobbies.

Curious by nature, talkative geek who can speak in front of a public or a camera, in love with technology, especially Azure and SQL Server. I want to understand how things work and to solve problems by myself during work as in my many hobbies. Show more

Lizzie Siegle

Lizzie Siegle

Lizzie serves developers in the Bay Area and beyond on Cloudflare's developer relations team and holds a Bachelor's degree in Computer Science from Bryn Mawr. She likes JavaScript, Python, and working with AI. When not organizing or attending hackathons and meetups, she enjoys tennis, ping pong, and all things Disney.

Lizzie serves developers in the Bay Area and beyond on Cloudflare's developer relations team and holds a Bachelor's degree in Computer Science from Bryn Mawr. She likes JavaScript, Python, and working with AI. When not organizing or attending hackath... Show more

Dan Neciu

Dan Neciu

I am a software engineer, focusing mostly on the Front-end, in a love-love relationship with Javascript. I worked professionally on all Big Three Frameworks (But secretly I love React the most, please don't tell my Vue-on-all-projects company)

I am forever trying to strike a balance between my desire to ship stunning UI and bringing fast and great value from a Product perspective but also trying to merge the cleanest, easily maintainable code I can possibly write.

I am a software engineer, focusing mostly on the Front-end, in a love-love relationship with Javascript. I worked professionally on all Big Three Frameworks (But secretly I love React the most, please don't tell my Vue-on-all-projects company) I a... Show more

Erik Bamberg

Erik Bamberg

AI Principal Software Engineer with extensive Java expertise, system design, and project management experience.

Specialized in AI/ML technologies, Large Language Models (LLMs), and Vector databases.

Java Expert and Trainer and Mentor. Strategic technical
advisor driving innovation in AI-powered software solutions

AI Principal Software Engineer with extensive Java expertise, system design, and project management experience. Specialized in AI/ML technologies, Large Language Models (LLMs), and Vector databases. Java Expert and Trainer and Mentor. Strategic... Show more

Mohamed Taman

Mohamed Taman

Adopts Java SE.next(), JakartaEE.next(), a JCP member, was a JCP Executive Committee member, JSR 354, 363 & 377 Expert Group member, EGJUG leader, Oracle Egypt Architects Club board member, speaks Java, loves Mobile, Big Data, Cloud, Blockchain, and DevOps.

An International speaker, book and video author of “JavaFX essentials,” “Getting Started with Clean Code, Java SE 9”, and “Hands-On Java 10 Programming with JShell”, And I won Duke’s Choice 2015, 2014, and 2013 awards, and JCP Outstanding Adopt-a-Jar Participant 2013 awards.

Adopts Java SE.next(), JakartaEE.next(), a JCP member, was a JCP Executive Committee member, JSR 354, 363 & 377 Expert Group member, EGJUG leader, Oracle Egypt Architects Club board member, speaks Java, loves Mobile, Big Data, Cloud, Blockchain, and ... Show more

Lorenzo Barbieri

Lorenzo Barbieri

From the moment I turned on my Vic-20, 40 years ago, I knew my life was aimed at technology. I've always been the first in line to test out new products, services, gadgets, especially those which promised to change people’s lives. I’ve always been a tech superhero.
After all these years, my personal mission went from changing the world through technology to improving the world, one human interaction at a time. Changing the way people live in the digital age is possible only by addressing the human factor, together with technology.
My proven track record of driving sales involves creating connections, building communities, challenging views, delivering value, and going the extra mile.
As a Cloud Architect and Evangelist, I’ve presented technical and business content to a wide range of different audiences, from executive meetings to large developer conferences, including many online and in-person events, and I was recognized as the “best speaker” multiple times, thanks to a clever mix of storytelling and technology.
I have a deep technical knowledge of Application Innovation and Modernization in the Cloud, Cloud Native solutions and, of course, on-premises solutions. I can drive product development and technology teams.
I have a deep business knowledge of Manufacturing, Automotive, and Construction business, coupled with a broad knowledge of ISVs and Microsoft partners.
So, if you're ever in need of an evil genius being able to impact deals through human interactions and technology, look no further. I’m the right person to help with your business!

From the moment I turned on my Vic-20, 40 years ago, I knew my life was aimed at technology. I've always been the first in line to test out new products, services, gadgets, especially those which promised to change people’s lives. I’ve always been a ... Show more

Ayesha Kaleem

Ayesha Kaleem

I am a Site Reliability Engineer (SRE) and Kubernetes enthusiast with extensive experience in ensuring complex systems' reliability, scalability, and performance. I specialize in deploying and managing Kubernetes clusters, optimizing infrastructure, and automating processes.

With a strong foundation in SRE principles and DevOps practices, I thrive in fast-paced environments and am committed to continuous learning and innovation. I am also an active contributor to the tech community, sharing my knowledge through talks and workshops.

I am a Site Reliability Engineer (SRE) and Kubernetes enthusiast with extensive experience in ensuring complex systems' reliability, scalability, and performance. I specialize in deploying and managing Kubernetes clusters, optimizing infrastructure, ... Show more

Yosef Arbiv

Yosef Arbiv

Yosef Arbiv is married to Adi and a father of four, currently an Engineering Team Leader at Elementary and a CNCF Ambassador.

Yosef is passionate about people, software, and combining the two.

Yosef Arbiv is married to Adi and a father of four, currently an Engineering Team Leader at Elementary and a CNCF Ambassador. Yosef is passionate about people, software, and combining the two. Show more

Florian Rappl

Florian Rappl

Dr. Florian Rappl is Solution Architect for IoT and distributed web applications at smapiot. His main interest lies in the creation of innovative architectures that scale in development and usage. He won several prizes for his work and is a Microsoft MVP in the area of development technologies. He regularly blogs and writes articles for popular magazines and websites in the web development space.

Dr. Florian Rappl is Solution Architect for IoT and distributed web applications at smapiot. His main interest lies in the creation of innovative architectures that scale in development and usage. He won several prizes for his work and is a Microsoft... Show more

Rik Hepworth

Rik Hepworth

Rik helps organisations use Cloud better as CEO and co-founder of Zure UK. Whether that is a new adoption where governance and management are key, or an application modernisation project where technology choice and team knowledge are important factors in success.
Through his public speaking and community involvement, Rik is a recipient of the Microsoft MVP Programme award for his work with Azure. He is also proud to be a member of the Microsoft Regional Director Programme. As an event organiser, speaker and lapsed blogger, Rik is keen to share his knowledge with the community, and encourage and support others as they do the same.
His grey hair is an indication of how long he has worked in IT, and in that time he's done most things you'd expect of an IT Pro: From crawling under floors pulling cables, to managing large scale automated OS rollouts, to architecting solutions for on-premises and cloud. Now he spends more time working with his customers' management, sharing that breadth of experience and learning.

Rik helps organisations use Cloud better as CEO and co-founder of Zure UK. Whether that is a new adoption where governance and management are key, or an application modernisation project where technology choice and team knowledge are important factor... Show more

David Rodriguez

David Rodriguez

I'm David Rodriguez, a Spanish Microsoft Regional Director and Azure Microsoft Most Valuable Professional, living in Tenerife, Canary Islands. On 2011, I co-founded Intelequia, a company focused on helping customers to adopt the cloud model, as well as the TenerifeDev user group.

Over the last years I worked at DNN Corp. (a.k.a. DotNetNuke) as the Cloud Team Lead engineer, building Evoq OnDemand and the new microservices architecture for DNN Platform based products and services. I have authored some open source modules for DNN and Azure available at GitHub, allowing to integrate Azure AD, Redis, Application Insights and many other services in the platform.

You can find me organizing the local user group once or twice per month, mainly talking about cloud related matters, and lately on building intelligent apps and bots with cognitive services, and of course, at the Global Azure Bootcamp in Madrid. I don't miss any Microsoft Inspire conference edition, so if you plan to go there we can meet and talk with a cup of coffee. BTW, if you come to the island, I will be happy to show you the best "guachinches" on Tenerife, only local people know the best ones.

I'm David Rodriguez, a Spanish Microsoft Regional Director and Azure Microsoft Most Valuable Professional, living in Tenerife, Canary Islands. On 2011, I co-founded Intelequia, a company focused on helping customers to adopt the cloud model, as well ... Show more

Rustam Mehmandarov

Rustam Mehmandarov

Experienced Software Engineer | Architect | Keynote & Public Speaker | Java Champion | Google Developer Expert for Cloud | Docker Captain | Oracle ACE Pro | Community Leader | Mentor | Ex-leader of JavaZone and Norwegian JUG – javaBin.

Experienced Software Engineer | Architect | Keynote & Public Speaker | Java Champion | Google Developer Expert for Cloud | Docker Captain | Oracle ACE Pro | Community Leader | Mentor | Ex-leader of JavaZone and Norwegian JUG – javaBin. Show more

Santiago Porras Rodríguez

Santiago Porras Rodríguez

Solutions Architect & Frontend Lead at ENCAMINA
MVP Developer Technologies
User Experience Developer Expert.

Passionate about new technologies, highlighting Windows Platform, Xamarin, ASP.NET, Microsoft Azure and SharePoint. I contribute to the developer community writing articles in my personal blog at Geeks.ms and occasionally at CompartiMOSS.com about SharePoint. I am also one of the TenerifeDev leads, user group about .NET Tenerife, and WPSUG user group about Windows Platform

You can find me in Twitter with the user @ saintwukong

Solutions Architect & Frontend Lead at ENCAMINA MVP Developer Technologies User Experience Developer Expert. Passionate about new technologies, highlighting Windows Platform, Xamarin, ASP.NET, Microsoft Azure and SharePoint. I contribute to the... Show more

Himanshu Singh

Himanshu Singh

Himanshu is a Full Stack Kotlin engineer and works as Android Engineer on the professional side. He is also a Google developer expert in Android and Kotlin. He is an active blogger, speaker, and content creator. He loves to mentor and share his knowledge to help people move into the development world!

Himanshu is a Full Stack Kotlin engineer and works as Android Engineer on the professional side. He is also a Google developer expert in Android and Kotlin. He is an active blogger, speaker, and content creator. He loves to mentor and share his knowl... Show more

Aman Sharma

Aman Sharma

Aman is a serial AI entrepreneur with 3 successful exits and over a dozen digital/AI products. His journey began as an ML researcher at TU Wien, where he pioneered CNN for large-scale recommendation systems. A pillar of the South Florida tech scene, Aman leads the AI Collective Miami Chapter. Aman has delivered 100+ tech talks with his signature Miro Diagram style storytelling, which has inspired thousands of founders, executives, and developers worldwide, establishing him as a two-time Most Active Speaker and respected AI innovator.

Aman is a serial AI entrepreneur with 3 successful exits and over a dozen digital/AI products. His journey began as an ML researcher at TU Wien, where he pioneered CNN for large-scale recommendation systems. A pillar of the South Florida tech scene, ... Show more

Stacy Deere

Stacy Deere

Stacy Deere (MVP) is the Owner of Focal Point Solutions LLC, a Cincinnati, OH based company that provides SharePoint Solutions for the Enterprise in the mid-to-large market. Previously, Stacy led a rapidly growing SharePoint practice where she engaged in a wide range of consulting projects across various industries. With nearly 18 years of experience in the IT Industry, Stacy has mainly focused on Collaboration Solutions such as IBM’s Lotus Notes\Domino and Microsoft’s Messaging and Collaboration Solutions including deployments and SharePoint upgrades.
 
Within the SharePoint community, Stacy is a SharePoint MVP and is actively sharing her real-world expertise through authoring in the blog http://www.spmindmelt.focalpointsolutions.co, ; and speaking at various SharePoint Saturday's, Collab365, ITUnity, SPTechCon, SharePoint Fest, SharePoint Engage, and User Group events. She also co-authored two books called SharePoint 2013 and 2010 Using Managed Metadata.

Stacy Deere (MVP) is the Owner of Focal Point Solutions LLC, a Cincinnati, OH based company that provides SharePoint Solutions for the Enterprise in the mid-to-large market. Previously, Stacy led a rapidly growing SharePoint practice where she engage... Show more

Mandi Walls

Mandi Walls

Mandi Walls is a DevOps Advocate on the Community and Advocacy Team at PagerDuty. Before joining PagerDuty, Mandi spent a number of years at Chef Software, working with customers and community members in the US and Europe. Originally a large-scale systems administrator, Mandi has focused on IT automation; organizational culture and change; and community.

Mandi Walls is a DevOps Advocate on the Community and Advocacy Team at PagerDuty. Before joining PagerDuty, Mandi spent a number of years at Chef Software, working with customers and community members in the US and Europe. Originally a large-scale sy... Show more

Mark Pryce-Maher

Mark Pryce-Maher

Mark Pryce-Maher is a Senior Program Manager on Microsoft Fabric. Primary focusing on the Mirroring, User Experiences and Migrations for the Data Warehouse. Mark has spent the last 7 years at Microsoft in the Big Data space, including helping many customers migrate from Netezza, Teradata, Oracle, APS, SQL Server to Synapse Data Warehouse.

Mark Pryce-Maher is a Senior Program Manager on Microsoft Fabric. Primary focusing on the Mirroring, User Experiences and Migrations for the Data Warehouse. Mark has spent the last 7 years at Microsoft in the Big Data space, including helping many... 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.