Most Active Speakers 2025

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

  • 1123 speakers
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Elaine Dias Batista

Elaine Dias Batista

Elaine is a Senior Staff Engineer at SFEIR where she works on projects including mobile technologies since 2013. She has worked on several projects in native Android/iOS and Flutter. She's a GDE for the Google Assistant, Flutter and Dart

Elaine is a Senior Staff Engineer at SFEIR where she works on projects including mobile technologies since 2013. She has worked on several projects in native Android/iOS and Flutter. She's a GDE for the Google Assistant, Flutter and Dart Show more

Mike Maadarani

Mike Maadarani

Mike Maadarani is a Microsoft Copilot & M365 MVP, a board member of the Microsoft Global Community Initiative, and a Cloud Solutions Architect who has been providing strategic solutions surrounding architecture, planning, migration and governance for medium to large-scale organization. With 30 years of IT industry experience, Mike spent the last few years managing and delivering collaboration solutions to a wide range of mid to large scale projects. He is an evangelist and visionary where he can and provide the business and technical leadership required for delivering successful global Microsoft 365 projects. This has giving him the opportunity to work with great talented colleagues and people who I have a lot of respect for their passion and dedication.

He is an active member in the Microsoft 365 community and have spoken in many Microsoft conferences, local events, and corporate functions.

Mike Maadarani is a Microsoft Copilot & M365 MVP, a board member of the Microsoft Global Community Initiative, and a Cloud Solutions Architect who has been providing strategic solutions surrounding architecture, planning, migration and governance for... Show more

Luc Labelle

Luc Labelle

Luc brings over two decades of IT expertise to the table, with a remarkable 15-year tenure as a consultant. Throughout his career, he has spearheaded numerous projects centered around Office 365, SharePoint, Power BI, and Power Platform, accumulating a wealth of experience in diverse business environments. This extensive exposure has sculpted Luc into a highly skilled professional with a deep understanding of various business models.

Driven by his fervor for technology, Luc established his own consulting firm, Kabesa, in 2014. Actively immersed in the Montreal community, he is a frequent contributor to events, wearing multiple hats as both an organizer and a speaker. As a distinguished Business Applications MVP, Luc leads the Montreal Power Platform User Group and is sought after globally for his expertise, having delivered numerous sessions worldwide, each showcasing the cutting-edge innovations of Microsoft technology.

Luc brings over two decades of IT expertise to the table, with a remarkable 15-year tenure as a consultant. Throughout his career, he has spearheaded numerous projects centered around Office 365, SharePoint, Power BI, and Power Platform, accumulating... Show more

Maryleen Amaizu

Maryleen Amaizu

Dr. Maryleen Amaizu is a seasoned machine learning engineer and AI specialist with extensive experience developing privacy-aware AI and data solutions across diverse domains including healthcare, finance, public sector, and beyond. She holds a PhD in Computer Science from the University of Leicester, where she focused on privacy-preserving machine learning systems.

At Redgate Software, Maryleen builds privacy-aware AI-integrated software to ensure compliance and safe test data sharing. She has worked on synthetic data generation, text anonymisation, LLM-based masking dataset generation, intelligent PII classification, and privacy evaluation framework.

Her expertise and impact have been recognized with several accolades, including the AI Champion of the Year award by Bupa Everywoman in Technology in 2025 and the Excellence Award in Data Protection and Information Privacy from the Young CISO Network in 2022.

Dr. Maryleen Amaizu is a seasoned machine learning engineer and AI specialist with extensive experience developing privacy-aware AI and data solutions across diverse domains including healthcare, finance, public sector, and beyond. She holds a PhD in... Show more

James McGillivray

James McGillivray

James McGillivray, Data Management and Analytics MCSE, has been working in Business Intelligence for over a decade. He spends his working hours building solutions that allow people to make informed decisions. quickly and accurately. He is a Director at South African Data Consultancy, Cobalt Analytics.

Before his career in data, James was an avid musical theatre student and musician. This love for performance has developed into a passion for developing and delivering presentations that are informative and enjoyable. James speaks frequently at Data Community Events, and has presented at some of the most well-known Data Events around the globe, including PASS Summit, SQL Bits and the Power BI World Tour.

James McGillivray, Data Management and Analytics MCSE, has been working in Business Intelligence for over a decade. He spends his working hours building solutions that allow people to make informed decisions. quickly and accurately. He is a Director ... Show more

Michael Plettner

Michael Plettner

With more than 2 decades of customer experience, a long history in Microsoft products, Michael is a Cloud Architect who enjoys sharing his experience with the community and help the community grow.
During the last years, Michael was working with customers in Microsoft Teams topics, Microsoft 365 implementations overall and since 2022 he's also working with his customers in different Microsoft Viva projects.
Since more than seven years Michael has its own company, working with the focus on Microsoft topics, Change-Management and Project-Management. He's also a Microsoft MVP for Microsoft 365 Apps and Services since 2021.

With more than 2 decades of customer experience, a long history in Microsoft products, Michael is a Cloud Architect who enjoys sharing his experience with the community and help the community grow. During the last years, Michael was working with cus... Show more

Zahhar Kirillov

Zahhar Kirillov

During 20+ years spent in ICT industry, I had a privilege to wear all possible hats, acting as a software developer, UX designer, university lecturer, startup entrepreneur, CIO and finally as a delivery manager at S&P500 engineering company. Creating software is my biggest passion. I stay hands-on by delivering PoC and MVP to clients, diving into all aspects of modern technology, be it cloud computing, blockchain or AI. Originally from Estonia, since 2016 I live in Switzerland and in free time I enjoy doing yoga and snowboarding.

During 20+ years spent in ICT industry, I had a privilege to wear all possible hats, acting as a software developer, UX designer, university lecturer, startup entrepreneur, CIO and finally as a delivery manager at S&P500 engineering company. Creating... Show more

Surbhi Pokharna

Surbhi Pokharna

Surbhi is a data professional with over two decades of architectural/administration experience in the financial domain. Architecting the operationalization aspect in a client-facing role, delivering relational and advanced analytics solutions for large scale Operational and Data Warehouse implementations with focus on learning and innovation remained a constant part of her data journey. Currently she is leading enterprise scale cloud data migrations in SQL Server/Snowflake/Azure SQL/Managed Instance and involved with designing next generation Data Analytics solutions using Snowflake. Surbhi is board member of the New England SQL Server User Group, member of PASS, speaker in PAAS Summit/Snowflake User Group/Azure Data User Groups/Data Saturdays/SQLBits.

Surbhi is a data professional with over two decades of architectural/administration experience in the financial domain. Architecting the operationalization aspect in a client-facing role, delivering relational and advanced analytics solutions for lar... Show more

Galen Keene

Galen Keene

Galen Keene is a highly accomplished architect, technical project manager, trainer, and engineer with 20+ years of experience transforming businesses through modern collaboration and AI. Since 2007, he has specialized in Microsoft 365, SharePoint, Microsoft Teams, the Power Platform, and generative AI across collaborative applications—including Microsoft Copilot, Copilot Studio, ChatGPT, and others—designing secure, governed solutions that deliver measurable outcomes.

A Microsoft MVP (Microsoft 365/Teams), Galen is an international speaker, president of the San Diego Microsoft 365 Productivity Group, and president of the San Diego chapter of IAMCP. He builds communities that accelerate knowledge-sharing and adoption, connecting practitioners, leaders, and partners.

Galen delivers specialized training and enablement on Copilot and broader GenAI: strategy and readiness (governance, data access, information protection), solution design (prompts, plugins/connectors, agents), and adoption at scale (champions, train-the-trainer, metrics). He helps organizations integrate Copilot and GenAI into daily workflows to boost efficiency, spark innovation, and upskill teams and leaders.

He architects and leads digital, cultural, and process transformations—bringing expertise in business strategy, solution architecture, and technical program management. His global work spans highly regulated environments, including designing information architectures for sensitive defense data under strict international controls.

As an Architect, Trainer, and Business Transformation Leader, Galen unifies people, communications, and data with pragmatic methods aligned to strategic goals—meeting organizations where they are and guiding them to where they need to be in an AI-accelerated world.

Galen Keene is a highly accomplished architect, technical project manager, trainer, and engineer with 20+ years of experience transforming businesses through modern collaboration and AI. Since 2007, he has specialized in Microsoft 365, SharePoint, Mi... Show more

Régis Schneider

Régis Schneider

Je suis marié, avec 2 enfants (16 & 17 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre !
Le mot que j'apprécie le moins : "Normal".
Un mot que je n'apprécie pas trop : "Bienveillance". Un principe que j'apprécie beaucoup : "Bienveillance".
Sinon, tombé dans Agile en 2009, je ne veux maintenant plus m'en sortir, que ce soit à la maison ou au boulot. Je tente de développer depuis un positionnement de facilitateur, de produit et d’équipe.

Je suis marié, avec 2 enfants (16 & 17 ans). J'apprécie particulièrement les voyages éloignés, mais aussi ceux au bout de la rue. Tant d'opportunités de rencontrer et d'apprendre ! Le mot que j'apprécie le moins : "Normal". Un mot que je n'apprécie... Show more

Nicolas Fränkel

Nicolas Fränkel

Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the adoption of modern software practices. With a strong background in software, he has worked extensively with the JVM, applying his expertise across various industries. In addition to his technical work, he is the author of several books and regularly shares insights through his blog and open-source contributions.

Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the... Show more

Javan Rasokat

Javan Rasokat

Javan is a Senior Application Security Specialist at Sage, where he supports product teams in strengthening security across the software development lifecycle. He also lectures on Secure Coding at DHBW University in Germany. His journey into ethical hacking began at a young age, when he built bots to automate online games and uncovered security flaws, which he responsibly reported to game operators. Turning this passion into a career, Javan started out as a full-stack web and mobile engineer before moving into security consulting. He holds a Master’s degree in IT Security Management and multiple certifications, including GXPN, AIGP, CISSP, CCSP, and CSSLP. Javan has presented his research and delivered hands-on workshops at conferences such as DEFCON, OWASP Global AppSec and Blackhat.

Javan is a Senior Application Security Specialist at Sage, where he supports product teams in strengthening security across the software development lifecycle. He also lectures on Secure Coding at DHBW University in Germany. His journey into ethical ... 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

Lorenzo De Francesco

Lorenzo De Francesco

I am the CTO of Azimut Marketplace with over 10 years of experience in IT development. In the last year alone, I have successfully reduced IT costs by 80%, enhancing the operational efficiency of the platform. My primary commitment is to create IT solutions that not only drive profits but are also robust, durable, and flexible enough to meet the ever-evolving needs of our modern society. I am driven by a passion for innovation and technology, and I consistently strive to promote excellence in the management and development of technological systems.

I am the CTO of Azimut Marketplace with over 10 years of experience in IT development. In the last year alone, I have successfully reduced IT costs by 80%, enhancing the operational efficiency of the platform. My primary commitment is to create IT so... Show more

Henning Schwentner

Henning Schwentner

Henning loves programming in high quality. He lives this passion as coder, coach, and consultant at WPS – Workplace Solutions. There he helps teams to structure their monoliths or to build new systems from the beginning with a sustainable architecture. Microservices or self-contained systems are often the result. Henning is author of “Domain Storytelling” (Addison-Wesley 2022), “Domain-Driven Transformation” (Addison-Wesley 2024) and the www.LeasingNinja.io.

Henning loves programming in high quality. He lives this passion as coder, coach, and consultant at WPS – Workplace Solutions. There he helps teams to structure their monoliths or to build new systems from the beginning with a sustainable architectur... Show more

Funke Olasupo

Funke Olasupo

Funke Olasupo is a seasoned Technical Writer with a proven track record of simplifying complex software and developer tools into clear user and developer-focused technical documentation. She currently works at Rocket.Chat which is an open-source communication platform, where she champions various documentation efforts for developer and user-facing products.

Her career spans across fintech, secure collaboration, and developer tooling where she crafts API docs, technical tutorials, user guides, and in-product help systems that serve diverse audiences across industries.

Previously, she worked with OpenFoodFacts and Macrometa and has contributed as a guest author to platforms like Twilio, Honeybadger, and ButterCMS through backend engineering tutorials and documentation.

Beyond her work in tech writing, Funke is deeply involved in developer community growth. As a Google Developer Groups (GDG) co-organizer and Women Techmakers (WTM) Ambassador, she co-organizes developer meetups and women-in-tech events that promote diversity, inclusion, and continuous technical learning in the African tech ecosystem.

Funke’s work stands at the intersection of technical communication, open-source advocacy, and community empowerment, making her a valuable voice in Africa’s fast-growing tech space.

Funke Olasupo is a seasoned Technical Writer with a proven track record of simplifying complex software and developer tools into clear user and developer-focused technical documentation. She currently works at Rocket.Chat which is an open-source com... Show more

Sebastian Sieber

Sebastian Sieber

For the past decade, Sebastian has been a member of the ISV Solutions team at proMX AG. During this time, proMX’s project and resource management tool, proRM Fast Start, has won numerous awards. Sebastian was one of proMX’s liaisons to Microsoft’s Dynamics 365 Project Operations development team, thus gaining exceptionally thorough knowledge of the product almost since its first release. He has proven his Power Platform expertise in several successful implementation projects for proMX's international customers.

In addition to his technical leadership, Sebastian now also orchestrates proMX’s AI and Innovation investments, identifying emerging technologies and turning them into real-world solutions for business impact. His unique blend of hands-on product experience and strategic foresight makes him a sought-after speaker at industry events.

For the past decade, Sebastian has been a member of the ISV Solutions team at proMX AG. During this time, proMX’s project and resource management tool, proRM Fast Start, has won numerous awards. Sebastian was one of proMX’s liaisons to Microsoft’s Dy... Show more

Anshika Tiwari

Anshika Tiwari

Anshika is a passionate DevOps/SRE Engineer who is always eager to learn & implement cloud-native solutions, she has contributed to streamlining deployment processes and enhancing system reliability. She is eager to share her experiences and insights at conferences, contributing to the open-source community through talks, mentorship, and collaboration.

Anshika is a passionate DevOps/SRE Engineer who is always eager to learn & implement cloud-native solutions, she has contributed to streamlining deployment processes and enhancing system reliability. She is eager to share her experiences and insights... Show more

Paco Xu

Paco Xu

Paco is a member of Kubernetes Steering Committee, and co-chair of KubeCon+CloudNativeCon China 2024.

Paco is a kubeadm maintainer and an active kubernetes contributor. His interest includes SIG-Node, LTS and CoreDNS.

He is the leader of the open-source team in DaoCloud. He organized KCD Chengdu 2022 and KCS China 2023, and speaked in KCD Shanghai, KubeCon EU 2023 & 2024 & 2025, and KubeCon China 2021, 2023, 2024 & 2025. He is also LFAPAC Evangelist.

Paco is a member of Kubernetes Steering Committee, and co-chair of KubeCon+CloudNativeCon China 2024. Paco is a kubeadm maintainer and an active kubernetes contributor. His interest includes SIG-Node, LTS and CoreDNS. He is the leader of the op... Show more

Himanshu Singh

Himanshu Singh

Himanshu is a Full Stack Kotlin Engineer specializing in Android development. Recognized as a Google Developer Expert (GDE) for Android, he is an active speaker and content creator. Passionate about community building, Himanshu loves mentoring aspiring developers and helping them transition into the tech world.

Himanshu is a Full Stack Kotlin Engineer specializing in Android development. Recognized as a Google Developer Expert (GDE) for Android, he is an active speaker and content creator. Passionate about community building, Himanshu loves mentoring aspiri... Show more

Dubravko Bogović

Dubravko Bogović

I am an electrical engineer turned programmer. I love new technologies, smart homes and renewable energy as well as Science Fiction and fantasy and board games. I love making quizzes for conventions and playing board game tournaments or just attending a game day.
Also love badminton and everything related to it.

I am an electrical engineer turned programmer. I love new technologies, smart homes and renewable energy as well as Science Fiction and fantasy and board games. I love making quizzes for conventions and playing board game tournaments or just attendin... Show more

Chris Simon

Chris Simon

Chris is a technology coach and advisor helping technology teams drive business success. His focus is on helping startups realise their vision and new CTOs flourish in their roles. He also supports executives & boards with strategic technology advice, and engineering teams with training, mentoring and consulting in architecture, quality, domain-driven design and test driven development.

He is a regular meetup & conference speaker (https://chrissimon.au/speaking/) and to support teams using Domain-Driven Design, he recently launched https://contextive.tech & co-founded the DDD Australia meetup and the ADAConf (https://adaconf.org) conference.

Chris is a technology coach and advisor helping technology teams drive business success. His focus is on helping startups realise their vision and new CTOs flourish in their roles. He also supports executives & boards with strategic technology advice... Show more

Cristhian Fernandez

Cristhian Fernandez

I'm a Solutions Architect with over 20 years of experience in software development, primarily focused on designing and delivering solutions using the Microsoft technology stack.

I've worn many hats throughout my career, but my passion lies in helping organisations build impactful systems, most recently leveraging Dynamics 365 and the Power Platform. I enjoy guiding customers in unlocking the full potential of these tools and driving real value from their digital transformation efforts.

As an active member of the Power Platform community, I’m always eager to share knowledge, connect with others, and keep learning. I’ve been honoured to receive the Microsoft MVP award in recognition of these contributions—an achievement that’s as rewarding as the friendships and experiences the community brings.

I'm a Solutions Architect with over 20 years of experience in software development, primarily focused on designing and delivering solutions using the Microsoft technology stack. I've worn many hats throughout my career, but my passion lies in help... Show more

Stas Lebedenko

Stas Lebedenko

Stas Lebedenko is a full-stack cloud architect and platform engineer at Solidify AB. 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 Solidify AB. 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 c... 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, having created a course on Cloud Concepts for Everyone. He has always been interested in emerging technologies and how it shapes the world around us.

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

Dwayne McDaniel

Dwayne McDaniel

Dwayne has been working as a Developer Relations professional since 2015 and has been involved in tech communities since 2005. He loves sharing his knowledge, and he has done so by giving talks at over a hundred events worldwide. Dwayne currently lives in Chicago. Outside of tech, he loves karaoke, live music, and performing improv.

Dwayne has been working as a Developer Relations professional since 2015 and has been involved in tech communities since 2005. He loves sharing his knowledge, and he has done so by giving talks at over a hundred events worldwide. Dwayne currently liv... Show more

Mahmoud A. Atallah

Mahmoud A. Atallah

Azure Solutions Lead at Bespin Global MEA, with over 14 years of experience in Microsoft technologies. I help businesses build secure, scalable, and AI-powered solutions on Azure, with a strong focus on automation, security, and DevOps.

Specialized in Azure AI and AVD, and passionate about digital transformation. I’m also the organizer of #ExpertsLiveUAE, #ArWVDUG, and #CloudMechanics.

Spoke at global events like #GITEX, #MicrosoftAITour, #TechConnectLive, #GlobalAI, #AiEverythingSummit, #WorkplaceNinjas, and #WebSummit. I enjoy sharing practical knowledge through sessions, hackathons, and workshops to help others make the most of Microsoft Cloud and AI.
More at: https://3tallah.com

Azure Solutions Lead at Bespin Global MEA, with over 14 years of experience in Microsoft technologies. I help businesses build secure, scalable, and AI-powered solutions on Azure, with a strong focus on automation, security, and DevOps. Specialize... Show more

Maddy Dahl

Maddy Dahl

Maddy is driven by the prospect of navigating uncharted territories in tech and is committed to fostering environments where technology serves as a catalyst for growth and efficiency. The educational foundation and experiences gained contribute directly to Maddy’s current endeavors of shaping transformative training strategies as a Microsoft Certified Trainer (MCT) and Microsoft Most Valuable Professional (MVP).

In her current role, her focus is crafting tailored training initiatives that foster adoption of Microsoft 365 technologies, including Copilot for M365. Bridging the gap between tech capabilities and strategic business objectives, she's equipped numerous organizations to embrace innovation swiftly and effectively. Maddy’s role centers on translating complex technical requirements into actionable learning paths, aligning closely with her strategic vision to unlock potential through empowered technology use.

Maddy is driven by the prospect of navigating uncharted territories in tech and is committed to fostering environments where technology serves as a catalyst for growth and efficiency. The educational foundation and experiences gained contribute direc... Show more

Leonardo Cavagnis

Leonardo Cavagnis

Since 2023, I have been working as a firmware engineer at Arduino, contributing to the development of innovative hardware and software solutions.
I hold a Master's Degree in Computer Engineering from Politecnico di Milano, specializing in embedded systems. Before joining Arduino, I gained experience in various fields, including industrial, automotive, and green mobility.
Passionate about technical writing and traveling, I am always seeking new experiences and knowledge.

Since 2023, I have been working as a firmware engineer at Arduino, contributing to the development of innovative hardware and software solutions. I hold a Master's Degree in Computer Engineering from Politecnico di Milano, specializing in embedded s... Show more

Charles Lakes II

Charles Lakes II

Charles is a technical speaker and low-code advocate with a pro-code background, specializing in transforming business data architecture. With a passion for innovation, he shares his expertise to solve complex business problems and guide organizations in reimagining their legacy processes, advancing automation initiatives, streamlining operations, and reducing infrastructure costs.

| Software Engineer Plus Ultra | Middle-child | Soufside

Charles is a technical speaker and low-code advocate with a pro-code background, specializing in transforming business data architecture. With a passion for innovation, he shares his expertise to solve complex business problems and guide organization... 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.