Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Mauricio "Salaboy" Salatino

Mauricio "Salaboy" Salatino

Mauricio Salatino, also known as salaboy, works for Dash0 as an Ecosystem Engineer. He is a Java Champion, Cloud Native Ambassador, published book author and international Keynote speaker. Before working at Dash0, Mauricio spent the last 15 years building tools for Cloud-Native developers at companies such as Red Hat and VMware. When he is not writing tools for developers or contributing to open source projects in the Cloud Native space, he teaches about Kubernetes, Cloud-Native and agentic engineering on his blog salaboy.com

Mauricio Salatino, also known as salaboy, works for Dash0 as an Ecosystem Engineer. He is a Java Champion, Cloud Native Ambassador, published book author and international Keynote speaker. Before working at Dash0, Mauricio spent the last 15 years bui... Show more

Maddy Dahl

Maddy Dahl

Maddy Dahl is a technology strategist, Microsoft Most Valuable Professional (MVP), and Microsoft Certified Trainer (MCT) focused on helping organizations realize measurable business value from AI, Microsoft 365, and modern workplace technologies. She advises business and technology leaders on transforming the way people work by aligning emerging technologies with strategic business objectives, change management, and employee enablement.

In her role at RSM, Maddy leads Microsoft 365 and AI adoption initiatives that help organizations accelerate productivity, improve collaboration, and drive innovation at scale. Her expertise spans Microsoft Copilot, Microsoft 365, governance, training, and organizational readiness, enabling enterprises to move beyond technology deployment and achieve meaningful business outcomes. She is known for translating complex technical concepts into actionable strategies that empower leaders, strengthen adoption, and maximize return on technology investments.

Maddy Dahl is a technology strategist, Microsoft Most Valuable Professional (MVP), and Microsoft Certified Trainer (MCT) focused on helping organizations realize measurable business value from AI, Microsoft 365, and modern workplace technologies. She... Show more

Dieter Gobeyn

Dieter Gobeyn

Enterprise & solution architect, 14+ years in large enterprises. Microsoft Azure MVP.
I start from the business need, not the technology, and design for simplicity: cost-efficient, self-service where possible, easy to run.
I share what I learn through AzureTechInsider, the AzureWatcher newsletter, and speaking at events like Microsoft Build.

Enterprise & solution architect, 14+ years in large enterprises. Microsoft Azure MVP. I start from the business need, not the technology, and design for simplicity: cost-efficient, self-service where possible, easy to run. I share what I learn thr... Show more

Kevin Feasel

Kevin Feasel

Kevin Feasel is a Microsoft Data Platform MVP and Proprietor of Catallaxy Services, LLC, where he specializes in data analytics with T-SQL and R, forcing Spark clusters to do his bidding, fighting with Kafka, and pulling rabbits out of hats on demand. He is the lead contributor to Curated SQL (https://curatedsql.com), president of the Triangle Area SQL Server Users Group (https://www.meetup.com/tripass), and author of PolyBase Revealed (https://www.apress.com/us/book/9781484254608) and Finding Ghosts in Your Data (https://link.springer.com/book/10.1007/978-1-4842-8870-2). When not traveling around for presentations, Kevin lives in Raleigh, North Carolina.

Kevin Feasel is a Microsoft Data Platform MVP and Proprietor of Catallaxy Services, LLC, where he specializes in data analytics with T-SQL and R, forcing Spark clusters to do his bidding, fighting with Kafka, and pulling rabbits out of hats on demand... Show more

Seema Saharan

Seema Saharan

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

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

Kevin Dubois

Kevin Dubois

Kevin Dubois is often featured as a (keynote) speaker at conferences worldwide, where he shares his passion and knowledge about developer experience, AI, open source, cloud native development and Java. He is also an author, java Champion, and an accomplished software architect and platform engineer. Kevin currently works as a Senior Principal Developer Advocate at IBM, and is also Technical Lead for the CNCF Developer Experience Technical Advisory Group and Agentic AI Foundation Ambassador.

Multilingual and multicultural, Kevin speaks English, Dutch, French, and Italian fluently. Currently based in Switzerland, he has also lived in Belgium, Italy, Montana and Utah.
When he’s not coding or speaking at conferences, you’ll likely find Kevin exploring the great outdoors—whether he's hiking rugged trails, gravel biking through scenic routes, snowboarding down epic mountain slopes, or packrafting & kayaking on untamed waters.

Kevin Dubois is often featured as a (keynote) speaker at conferences worldwide, where he shares his passion and knowledge about developer experience, AI, open source, cloud native development and Java. He is also an author, java Champion, and an acco... Show more

Jayita Bhattacharyya

Jayita Bhattacharyya

Jayita Bhattacharyya, a Generative AI Engineer, international conference speaker, and Co-Organizer of the Bangalore Python User Group, one of India's largest Python communities under the Python Software Foundation ecosystem. Jayita specializes in Agentic AI, RAG systems, Knowledge Graphs, and production AI engineering, and has spoken at global conferences including PyData Global, PyCon Finland, Open Source India, NVIDIA AI Inference Day, and AI_dev Europe. Known for combining deep technical expertise with practical industry insights, she is passionate about helping organizations and developers build reliable, scalable, and impactful AI systems.

Commudle Acc - https://www.commudle.com/users/jayita13

Invited Speaker Events:
* AI DevCon - AI Developers Conference & Expo'26
* DevFest Mumbai'25
* Open Source India'25
* Pydata Global'25 - https://www.youtube.com/watch?v=dFOqSFW08Qg&list=PLF_cX--VXT_6nE5-05zvemH6IVD6qenwR&index=3&pp=iAQB
* Neo4j Hyd First Meetup
* PyCon Finland '25 - https://www.youtube.com/watch?v=vQQXnPgA_Ww&list=PLF_cX--VXT_6nE5-05zvemH6IVD6qenwR&index=1&pp=iAQB
* HOW2025 Postgresql IvorySql Conf - https://www.youtube.com/watch?v=ThejXQnVZOA&list=PLF_cX--VXT_6nE5-05zvemH6IVD6qenwR&index=2&t=2394s&pp=gAQBiAQB
* Neo4j GraphDB Blr June Meetup - https://www.meetup.com/graphdb-bengaluru/events/307880427/
* ML Kolkata Summer of AI Agents - Google I/O Recap
* NVIDIA AI Inference Day by Collabnix - https://www.meetup.com/collabnix/events/306235173/
* GeekyAnts Build With AI - https://www.meetup.com/geekyants-events-meetup-group/events/305937394
* GDG BLR AI Connect - https://gdg.community.dev/events/details/google-gdg-bangalore-presents-the-ai-connect/
* Codebasics AI & Data Fest 2025 - https://codebasics.io/lp/ai-and-data-fest-2025
* Confluent Current BLR 2025 - https://current.confluent.io/post-conference-videos-2025/building-knowledge-graph-rag-using-neo4j-bng25
* TechNexus MS AI & Chai meetup - https://www.meetup.com/technexus-community/events/306378851
* Graph DB BLR March Meetup - https://www.meetup.com/graph-database-bengaluru/events/305954200/
* WiDS Worldwide Datathon Workshop 2025 - https://community.widsworldwide.org/posts/78340552
* PyData BLR feb meetup 2025 - https://www.meetup.com/pydata-bangalore/events/305935351
* Internation Conference on AI & Data Science - https://datascience.averconferences.com/speakers.php
* Devdotcom Podcast on AI, Hackathons, and Data Science 101 - https://www.devdotcom.in/events/datascience-101
* K8sBLR February 2025 Meetup - https://www.meetup.com/kubernetes-india-meetup/events/305496181/
* FOSS United Hyderabad 2025 - https://www.youtube.com/watch?v=zbFK41HRKDY&t=1085s
* Analytics Vidhya Datahour - https://community.analyticsvidhya.com/c/datahour/rag-brag-supercharging-with-groq
* Analytics Vidhya DataHack Summit 2024 - https://www.analyticsvidhya.com/datahacksummit/sessions/jayita-bhattacharyya
* Google Cloud Community Days Kolkata 2024 - https://ccd2024.gdgcloudkol.org/speakers
* Infosys TechCohere WIT Q2-FY25
* GDG Durgapur Developer Summit 2024 - https://gdg.community.dev/events/details/google-gdg-durgapur-presents-developer-summit-durgapur-2024/
* GDSC AOT Build with AI 2024 - https://gdg.community.dev/events/details/google-gdg-on-campus-academy-of-technology-hooghly-india-presents-build-with-ai/
* GDG Delhi DevFest 2024 - https://www.commudle.com/users/jayita13
* GDSC IIIT Kalyani Build with AI 2024 - https://gdg.community.dev/events/details/google-gdg-on-campus-ideal-institute-of-engineering-kalyani-india-presents-build-with-ai/
* GDG Siliguri DevFest 2024 - https://gdg.community.dev/events/details/google-gdg-siliguri-presents-devfest-siliguri-2024/
* GDG Mangalore DevFest 2024 - https://gdg.community.dev/events/details/google-gdg-cloud-mangalore-presents-devfest-mangalore-2024/
* ROAD to AI Community Day 2024 - https://www.commudle.com/communities/machine-learning-kolkata/events/road-to-ai-community-day

I took part in multiple hackathons to build end-to-end solutions, won some, learned from all, and gained much experience interacting and networking with diverse mindsets.

* YourStory | Snowflake - Hero Challenge - https://www.hackerearth.com/challenges/hackathon/yourstory-snowflake-hero-challenge/
* Indegene Hackathon 2025 Winner
* ATMECS Gen AI Hackathon 2024 2nd runner-up
* TIU AI Unite Hackathon 2024 Finalist
* Unisys UHackHive 2024 Judge's Choice Award
* M&G Global innovAIte knacktohack 2024 Finalist
* Infosys Data For AI 2024 Winner
* Informatica Data Engineering 2024 Winner
* Google GenAI APAC top 50 teams
* Lablab.ai Vectara Unhallucinate Challenge 1st runner-up
* Intel OneAPI Hackathon 2023 2nd runner-up
* TBO Voyagehacks 2023 Finalist
* Cyient CyientifIQ 2023 Finalist
* KPMG world after Covid 1st runner-up
* Intel GenAI hackathon 2023 Finalist
* Kaggle AI report competition 2023 top 7%
* H2S TPF GenAI rush buildathon 2023 Finalist

Jayita Bhattacharyya, a Generative AI Engineer, international conference speaker, and Co-Organizer of the Bangalore Python User Group, one of India's largest Python communities under the Python Software Foundation ecosystem. Jayita specializes in Age... Show more

Carlos Javier Sosa Marquina

Carlos Javier Sosa Marquina

Carlos Sosa (@cjsosam) is a technology enthusiast with more than 20 years of experience in development, architecture and administration on SharePoint technologies, and more than 7 in development, architecture and administration on Power Platform. He works at knowmad mood (previosly atSistemas) in Barcelona and is an active contributor in communities like Power Platform Barcelona User Group and SUG.CAT

Carlos Sosa (@cjsosam) is a technology enthusiast with more than 20 years of experience in development, architecture and administration on SharePoint technologies, and more than 7 in development, architecture and administration on Power Platform. He ... Show more

Keyla Dolores Méndez

Keyla Dolores Méndez

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

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

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

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

Highlights:

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

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

Mabrouk Mahdhi

Mabrouk Mahdhi

Mabrouk Mahdhi is the Founder and Managing Director of Prosiria, a technology company focused on building innovative software solutions, developer tools, and cloud-based platforms. A Principal Software Engineer and recognized Microsoft Most Valuable Professional (MVP) in .NET technologies, he specializes in modern software architecture, distributed systems, AI-powered applications, and the Microsoft technology stack.

With extensive experience in ASP.NET Core, Blazor, .NET MAUI, cloud-native development, and enterprise software engineering, Mabrouk helps organizations design and deliver scalable, high-performance solutions that solve real-world business challenges.

Beyond his professional work, he is the founder and organizer of Tunisia Dev Days, one of North Africa's leading software engineering conferences, bringing together developers, architects, Microsoft MVPs, and technology leaders to explore the latest trends in AI, cloud computing, DevOps, and modern software development. He is also a frequent international conference speaker, author, and community leader passionate about empowering developers and fostering innovation across the global technology ecosystem.

Mabrouk Mahdhi is the Founder and Managing Director of Prosiria, a technology company focused on building innovative software solutions, developer tools, and cloud-based platforms. A Principal Software Engineer and recognized Microsoft Most Valuable ... Show more

Baruch Sadogursky

Baruch Sadogursky

Baruch Sadogursky (@jbaruch) did Java before it had generics, DevOps before there was Docker, and DevRel before it had a name. He built DevRel at JFrog from a ten-person company through an IPO, co-authored "Liquid Software" and "DevOps Tools for Java Developers," and is a Java Champion, a Microsoft MVP for AI, and a CNCF Ambassador alum.

Today, as a self-certified Level 3 Context Sommelier, Baruch focuses on context engineering. On top of sharing context with AI agents, Baruch also shares knowledge with developers through blog posts, meetups, and conferences such as DevNexus, QCon, Kubecon, and Devoxx, mostly about how to make your AI engineering lifecycle smarter and increase your organization's productivity.

Baruch Sadogursky (@jbaruch) did Java before it had generics, DevOps before there was Docker, and DevRel before it had a name. He built DevRel at JFrog from a ten-person company through an IPO, co-authored "Liquid Software" and "DevOps Tools for Java... Show more

David Lorenzo

David Lorenzo

Since 2010 delivering value in the Microsoft ecosystem: .NET web development, designing and building solutions in Azure. Since 2021, more focused in the Power Platform and Artifical Intelligence world.

Since 2010 delivering value in the Microsoft ecosystem: .NET web development, designing and building solutions in Azure. Since 2021, more focused in the Power Platform and Artifical Intelligence world. Show more

Adam Nichols

Adam Nichols

As a Lifelong Geek with almost 25 something yrs. experience working in the industry, I have spent the last 10 years at Microsoft, 5 yrs. as a Product Manager and 5 as a Microsoft Premier Filed Engineer focused on Modern Management (Autopatch, Endpoint Manager, Autopilot, Azure Virtual Desktop, Windows OSD). I have had the unique opportunity to be exposed to a wide variety of customers and environments. I have authored many Microsoft Internal offerings, as well as presented at multiple Microsoft Internal and External Conferences and tech talks. I'm always excited to talk about tech and learn from others around me.

As a Lifelong Geek with almost 25 something yrs. experience working in the industry, I have spent the last 10 years at Microsoft, 5 yrs. as a Product Manager and 5 as a Microsoft Premier Filed Engineer focused on Modern Management (Autopatch, Endpoin... Show more

Irine Kokilashvili

Irine Kokilashvili

Infrastructure Engineer during the day, tinkerer during the night!
When I'm not pushing code or fixing servers, you can find me trying to automate anything that moves (or doesn't move - I'm not picky). I'm a firm believer in the power of memes, using duct tape to fix just about anything, and the occasional brainstorming session with my sidekick rubber duck (who is a great listener, by the way).

Infrastructure Engineer during the day, tinkerer during the night! When I'm not pushing code or fixing servers, you can find me trying to automate anything that moves (or doesn't move - I'm not picky). I'm a firm believer in the power of memes, usin... Show more

Diego Rodríguez Varela

Diego Rodríguez Varela

I am currently a Microsoft MVP (Developer Security) and Software Developer Engineer at Plain Concepts. Over the past 2 years I have had the privilege of speaking in more than 10 events for both Microsoft and Google communities.

In general, I am interested in exploring the methodologies and technologies that allow us to achieve secure systems, and how we can apply these principles in organizations of different sizes. That translates lately into: failsafe use of Generative AI Tools, K8S security, Frontend & Backend frameworks and even Webauthn authentication.

Besides software development, I am passionate about sports, motorbikes and, when I have enough time, travelling.

I am currently a Microsoft MVP (Developer Security) and Software Developer Engineer at Plain Concepts. Over the past 2 years I have had the privilege of speaking in more than 10 events for both Microsoft and Google communities. In general, I am in... Show more

Yves Habersaat

Yves Habersaat

Yves Habersaat is a Business Applications Consultant and AI Tech Lead at Sword Group in Switzerland, specializing in building applications and solutions with Microsoft 365, Azure, Dynamics 365, and the Power Platform.

With a strong passion for modern development technologies and application lifecycles, Yves focuses on Microsoft 365 services such as Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Viva, and Microsoft Copilot. He possesses expertise in modern development tools including SharePoint Framework (SPFx), Teams SDK, Microsoft Graph, Git, TypeScript, React, Visual Studio, and Azure DevOps.

He actively shares his knowledge and experience through speaking engagements and his blog at www.yhabersaat.ch, always ready to support and assist the community.

Yves Habersaat is a Business Applications Consultant and AI Tech Lead at Sword Group in Switzerland, specializing in building applications and solutions with Microsoft 365, Azure, Dynamics 365, and the Power Platform. With a strong passion for mod... Show more

Josephine Pfeiffer

Josephine Pfeiffer

josie works on infrastructure and security. she spends work hours on linux userspace networking, free time on porting distros to weird architectures, and contributing to CNCF projects.

she unironically thinks s390x is cool and will argue about it.

occasionally writes crystal, and likes electronics with transparent cases.

josie works on infrastructure and security. she spends work hours on linux userspace networking, free time on porting distros to weird architectures, and contributing to CNCF projects. she unironically thinks s390x is cool and will argue about it.... Show more

Louëlla Creemers

Louëlla Creemers

Louëlla Creemers is a software developer from the Netherlands focusing on .NET, C#, and modern web technologies. She is active in the developer community as a teacher, content creator, blogger, and public speaker, with a focus on making advanced or new topics accessible to developers at all stages of their careers. Online, she enjoys sharing educational content and the occasional joke with an audience of over 30,000 developers.

Through her community involvement, Louëlla was awarded the Microsoft MVP title in 2023 in the Developer Technologies category. She is also a board member of the .NET Foundation and a mentor for her local CoderDojo.

Louëlla Creemers is a software developer from the Netherlands focusing on .NET, C#, and modern web technologies. She is active in the developer community as a teacher, content creator, blogger, and public speaker, with a focus on making advanced or n... Show more

Leo Visser

Leo Visser

Active in the IT industry since 2012, Leo Visser is a Subject Matter Expert for Azure and AI Foundry at BBTG. He advises organizations on AI, automation, and cloud architecture, combining tools like PowerShell, Power Platform, Azure Logic Apps, and native Azure services. His work strongly focuses on security, sustainability, and long-term value. Leo is a Microsoft PowerShell MVP.

Active in the IT industry since 2012, Leo Visser is a Subject Matter Expert for Azure and AI Foundry at BBTG. He advises organizations on AI, automation, and cloud architecture, combining tools like PowerShell, Power Platform, Azure Logic Apps, and n... Show more

Angelo Gulisano

Angelo Gulisano

Angelo Gulisano is the Founder and Lead IT Consultant at Angelo Gulisano S.r.l., Microsoft MVP in Business Applications, Microsoft Certified Trainer (MCT), and international speaker. He helps organizations adopt Microsoft 365 Copilot, Copilot Studio, Power Platform, and AI solutions to improve productivity and automate business processes. His sessions combine real-world experience, practical demos, and actionable guidance for IT professionals and business leaders.

Angelo Gulisano is the Founder and Lead IT Consultant at Angelo Gulisano S.r.l., Microsoft MVP in Business Applications, Microsoft Certified Trainer (MCT), and international speaker. He helps organizations adopt Microsoft 365 Copilot, Copilot Studio,... Show more

Maarten Balliauw

Maarten Balliauw

Maarten Balliauw loves building web and cloud apps. His main interests are in .NET web technologies, C#, Microsoft Azure and application performance. He is Head of Customer Success at Duende Software. Creator and maintainer of https://speaker.travel. He's an ASP Insider and former Microsoft MVP. Maarten is a frequent speaker at various national and international events and organizes Azure User Group events in Belgium. In his free time, he brews his own beer. Maarten's blog can be found at https://blog.maartenballiauw.be.

Maarten Balliauw loves building web and cloud apps. His main interests are in .NET web technologies, C#, Microsoft Azure and application performance. He is Head of Customer Success at Duende Software. Creator and maintainer of https://speaker.travel.... Show more

Neel Shah

Neel Shah

I help platform engineers and DevOps teams understand and adopt cloud-native infrastructure through talks, demos, and community building. I organise the CNCF Gandhinagar, HashiCorp UG Gandhinagar, and Google Cloud Gandhinagar communities, and I have spoken at 40+ events, including KubeCon India, PlatformCon, HashiTalks, OpenSearchCon Korea, FOSS ASIA, and LinuxFest Northwest.

My core focus areas are Kubernetes, GitOps, IaC with Terraform/Vault, AI-powered DevOps tooling, and observability pipelines. I've mentored 15+ hackathons and open-source programmes.

Certifications: GCP DevOps Professional, Azure AZ-104, FinOps Certified Engineer, Terraform Associate, Vault Associate.

I help platform engineers and DevOps teams understand and adopt cloud-native infrastructure through talks, demos, and community building. I organise the CNCF Gandhinagar, HashiCorp UG Gandhinagar, and Google Cloud Gandhinagar communities, and I have ... Show more

Florian Lenz

Florian Lenz

Florian Lenz is a Microsoft Azure MVP and Cloud Architect with over 10 years of experience building secure, scalable cloud platforms on Microsoft Azure. He specializes in Azure Landing Zones, DevSecOps, Infrastructure as Code, and cloud-native architectures, and has worked across industries including energy, finance, retail, and software.
As a speaker, author, and content creator, Florian shares practical lessons from real-world projects through conference talks, articles, and his YouTube channel—helping engineers and teams design systems that are secure, maintainable, and built for long-term success.

Florian Lenz is a Microsoft Azure MVP and Cloud Architect with over 10 years of experience building secure, scalable cloud platforms on Microsoft Azure. He specializes in Azure Landing Zones, DevSecOps, Infrastructure as Code, and cloud-native archit... Show more

Stas Lebedenko

Stas Lebedenko

Stas Lebedenko is a full-stack cloud architect and platform engineer at Eficode. He is also a co-organizer of the Odesa Microsoft. NET User Group, a speaker and author, and an active member of the international and Ukraine .NET/Azure/Operations communities. He has been building and designing software for the last twenty years and has been the Microsoft Azure Most Valuable Professional since 2020.

Stas Lebedenko is a full-stack cloud architect and platform engineer at Eficode. He is also a co-organizer of the Odesa Microsoft. NET User Group, a speaker and author, and an active member of the international and Ukraine .NET/Azure/Operations commu... Show more

Richard Fichtner

Richard Fichtner

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

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

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

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

Mihaela Gheorghe-Roman

Mihaela Gheorghe-Roman

Mihaela is a Senior Software Architect at Systematic, Romania, and an Oracle ACE Associate for Java. PhD in Artificial Neural Network algorithms, Associate Lecturer at the University of Cybernetics and Informatics in Bucharest, she is passionate about building production-grade systems and bringing real-world experience to the stage.

In her professional career, spanning over 15 years, she has worked in the telecom and defence domains with a focus on Java, Spring Boot, C, C#, Scala and Angular, and a growing interest in AI systems and agentic architectures.

Outside of tech, she holds a black belt in traditional Jiu-Jitsu, runs marathons, and travels the world whenever she gets the chance.

Mihaela is a Senior Software Architect at Systematic, Romania, and an Oracle ACE Associate for Java. PhD in Artificial Neural Network algorithms, Associate Lecturer at the University of Cybernetics and Informatics in Bucharest, she is passionate abou... Show more

AL Rodriguez

AL Rodriguez

AL Rodriguez is a .NET Microsoft MVP, developer, cloud enthusiast, 3 kids in a trench coat, sometimes-blogger, and international speaker. With a background in software development, and a clear lack of self restraint, he specializes in using .NET for everything. An ASP.NET Core backend and a Blazor frontend? Check. IoT devices, Playwright UI Testing, CI/CD DevOps, or even Infrastructure as Code? Oh yeah, all C#! When not working, he's playing games, making stupid jokes, or arguing with code. You can catch his latest rantings or videos at his site: https://ProgrammerAL.com or some of his freelance articles at https://globalGlob.dev

AL Rodriguez is a .NET Microsoft MVP, developer, cloud enthusiast, 3 kids in a trench coat, sometimes-blogger, and international speaker. With a background in software development, and a clear lack of self restraint, he specializes in using .NET for ... Show more

Sohan Maheshwar

Sohan Maheshwar

Sohan is a Lead Developer Advocate at AuthZed, based in the Netherlands. He started his career as a developer building mobile apps and has been living in the cloud since 2013, in companies such as Amazon, Fermyon and Gupshup. He is also an O' Reilly author and an AAIF Ambassador.

His interests outside work include visual arts, trivia, and playing frisbee.

Sohan is a Lead Developer Advocate at AuthZed, based in the Netherlands. He started his career as a developer building mobile apps and has been living in the cloud since 2013, in companies such as Amazon, Fermyon and Gupshup. He is also an O' Reilly ... Show more

Fabio Catinella

Fabio Catinella

Fabio is an Android lover even before being an Android Developer.
He is specialized in Kotlin Multiplatform and Jetpack Compose, with a focus on building scalable architecture and fostering developer communities through international speaking. He is driven by high-quality code and the creative side of mobile innovation.

In his spare time, he also organizes community events with the GDG Venezia.

Fabio is an Android lover even before being an Android Developer. He is specialized in Kotlin Multiplatform and Jetpack Compose, with a focus on building scalable architecture and fostering developer communities through international speaking. He is... Show more

Nicklas Ahlberg

Nicklas Ahlberg

Nicklas is a Trusted Security Advisor employed at Onevinn in Sweden.
His primary objective is assisting organisations in navigating Intune, ensuring they obtain an optimal and highly secure user experience.

Nicklas is a dual Microsoft MVP:
* Security (Microsoft Intune)
* Windows and Devices (Windows)

He has spoken at events such as:
* HTMD (21)
* TechMentor Orlando (22)
* Live 360 Orlando (22)
* MMUGSE, (23,24,25,26)
* NIC (23,25)
* India Cloud Security Summit (23,25)
* AVD Tech Fest (24)
* MEM Summit (22,23,24,25,26)
* Cloud Technology Townhall Tallinn (25,26)
* MC2MC Connect (25)
* MMSMOA (25)
* Experts Live Denmark (24,25,26)
* Experts Live NL (25)
* Workplace Ninjas Virtual Event (21)
* Workplace Ninjas NL Connect (25)
* Workplace Ninjas NO (25,26)
* Workplace Ninjas UK (25)
* Workplace Ninjas DK (26)
* Workplace Ninjas Summit (25)

Nicklas is a Trusted Security Advisor employed at Onevinn in Sweden. His primary objective is assisting organisations in navigating Intune, ensuring they obtain an optimal and highly secure user experience. Nicklas is a dual Microsoft MVP: * Sec... 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.