Most Active Speakers 2023

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

  • 759 speakers
  • Auto-generated
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

Allessandria Polizzi

Allessandria Polizzi

Owner of a 2022 Workplace Wellness "Hot List" company, one of the top 10 Organizational Change Management Companies of 2022, named a top 100 HR Professional of 2020, and recently elected as the global psychological health and safety liaison for ISO, Dr. Allessandria Polizzi has 20 years of experience leading teams across multiple industries to unlock the potential in people and help organizations thrive. Following her own burnout in 2021, Dr. Al found the marketplace for practical solutions for leaders in crisis to be insufficient for her needs. She decided to reboot her consulting practice, Verdant Consulting, with a renewed focus on solving this issue in the hopes that future leaders would have better options. In addition, she has co-founded HR Wellbeing Week and Kite HR, which provide targeted programs that address the specific needs of HR teams. She also hosts the Be Verdant podcast, which shares the latest in resiliency and psychological safety from around the globe.

Owner of a 2022 Workplace Wellness "Hot List" company, one of the top 10 Organizational Change Management Companies of 2022, named a top 100 HR Professional of 2020, and recently elected as the global psychological health and safety liaison for ISO, ... Show more

Sarah Young

Sarah Young

Once described on Reddit as “technically challenged”, Sarah is a Director of Security at Microsoft. She has lived all over the place but currently calls Melbourne home. Sarah has been working in cyber security since before it was cool, has previously spoken at many security conferences including Black Hat and has authored books, training courses and all sorts of security content.

Once described on Reddit as “technically challenged”, Sarah is a Director of Security at Microsoft. She has lived all over the place but currently calls Melbourne home. Sarah has been working in cyber security since before it was cool, has previously... 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

Toni Pohl

Toni Pohl

I work as consultant and I am specialized in designing solutions for Microsoft 365, Microsoft Azure and Azure AI Services. I'm a conference speaker, blogger, and Microsoft MVP.

I work as consultant and I am specialized in designing solutions for Microsoft 365, Microsoft Azure and Azure AI Services. I'm a conference speaker, blogger, and Microsoft MVP. Show more

Kervin Kueny

Kervin Kueny

Curieux de nature, j'accompagne les équipes dans la tempête du changement. Ce n'est pas toujours facile,
et pourtant, cela réserve toujours des moments fantastiques.
Ma devise de grand philosophe : Le cerveau est un organe tellement formidable, que de nos jours, presque tout le monde utilise le sien (Chris Deniaud)

Curieux de nature, j'accompagne les équipes dans la tempête du changement. Ce n'est pas toujours facile, et pourtant, cela réserve toujours des moments fantastiques. Ma devise de grand philosophe : Le cerveau est un organe tellement formidable, qu... Show more

Prathyusha(Prathy) Kamasani

Prathyusha(Prathy) Kamasani

I’m Prathyusha (Prathy) Kamasani, a solopreneur behind Data Nova, a small, purpose-driven business specialising in Microsoft BI solutions. With over 15 years of experience in the data space, I take a design-first approach to everything I build. Whether I’m developing well-structured data platforms or creating user-centric Power BI reports, my goal is to make data accessible, intuitive, and genuinely impactful.

From delivering end-to-end Microsoft Fabric solutions to crafting interactive data visualisations, I bring together design and data to help organisations uncover the insights that truly matter.

I’m also passionate about sharing knowledge and building community. Since 2016, I’ve been running the London Microsoft Fabric User Group. You’ll often find me speaking at conferences or hosting events at the London Fabric User Group

I’m Prathyusha (Prathy) Kamasani, a solopreneur behind Data Nova, a small, purpose-driven business specialising in Microsoft BI solutions. With over 15 years of experience in the data space, I take a design-first approach to everything I build. Wheth... Show more

Diego Zapico

Diego Zapico

Expert Architect at NTT DATA. Microsoft Azure MVP. ♿🏎️🛫

Expert Architect at NTT DATA. Microsoft Azure MVP. ♿🏎️🛫 Show more

Peter ONeill

Peter ONeill

Peter O'Neill is a Solutions Engineering Manager at Teleport, specializing in identity-aware access control and zero-trust security architectures for enterprise customers. With expertise spanning PKI infrastructure, reverse proxies, OAuth2/OIDC, and Kubernetes security patterns, he helps organizations modernize their authorization systems. Peter's work focuses on high-security environments, where he designs solutions using enterprise identity providers to enable fine-grained access control.

Peter O'Neill is a Solutions Engineering Manager at Teleport, specializing in identity-aware access control and zero-trust security architectures for enterprise customers. With expertise spanning PKI infrastructure, reverse proxies, OAuth2/OIDC, and ... Show more

Mackenzie Jackson

Mackenzie Jackson

Mackenzie is the Field CTO for Aikido Security, helping tech leaders understand application security through an attacker’s lens. As the co-founder and former CTO of the health tech company Conpago, he understands the challenges of building secure applications. Mackenzie has spoken in over 30 countries, hosts popular podcast The Secure Disclosure, and contributes to multiple publications including Dark Reading, Financial Times, and Fast Company.

Mackenzie is the Field CTO for Aikido Security, helping tech leaders understand application security through an attacker’s lens. As the co-founder and former CTO of the health tech company Conpago, he understands the challenges of building secure app... Show more

Marco Minerva

Marco Minerva

Marco Minerva has been using .NET since its first introduction. Today he proudly lives in Taggia, Italy, works as a freelance consultant and is involved in designing and developing solutions for the Microsoft ecosystem. His greatest expertise is backend development as a software architect. He holds training courses. He is a speaker at technical events, writes books and articles about developing and regularly makes live streaming about coding on Twitch. He is a Microsoft MVP since 2013.

Marco Minerva has been using .NET since its first introduction. Today he proudly lives in Taggia, Italy, works as a freelance consultant and is involved in designing and developing solutions for the Microsoft ecosystem. His greatest expertise is back... Show more

Valarie Regas

Valarie Regas

Valarie Regas is a DevOps fanatic, a Georgia Tech coding bootcamp graduate, and a veteran mommy. She holds a BA in Psychology and currently works in Computer Science education. After years being a stay-at-home mom, she decided to change her life by entering tech, and has learned a lot along the way. Outside of work, she enjoys mixed martial arts fighting, table-top role playing games, public speaking, creating tiny humans, and activism of all sorts.

Valarie Regas is a DevOps fanatic, a Georgia Tech coding bootcamp graduate, and a veteran mommy. She holds a BA in Psychology and currently works in Computer Science education. After years being a stay-at-home mom, she decided to change her life by e... Show more

Lorenzo Vercellati

Lorenzo Vercellati

I have been working on databases for 20 years and for over 10 years on business intelligence projects.
I'm a speaker for SQL Saturday and the Power Platform world Tour.
I am a teacher at DIAD and one of the administrators of Power BI User Group Italy

I have been working on databases for 20 years and for over 10 years on business intelligence projects. I'm a speaker for SQL Saturday and the Power Platform world Tour. I am a teacher at DIAD and one of the administrators of Power BI User Group Ita... 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

Michael Coté

Michael Coté

Michael Coté studies how large organizations improve how they build software to run and grow their business. His books Changing Mindsets, Monolithic Transformation, and The Business Bottleneck cover these topics. He’s been an industry analyst at RedMonk and 451 Research, done corporate strategy and M&A, and was a programmer. He also co-hosts several podcasts, including Software Defined Talk. His daily-ish newsletter is at newsletter.cote.io.

Michael Coté studies how large organizations improve how they build software to run and grow their business. His books Changing Mindsets, Monolithic Transformation, and The Business Bottleneck cover these topics. He’s been an industry analyst at RedM... Show more

Geetha Anne

Geetha Anne

Geetha is a Solutions Architect and Customer Success professional specializing in big data management , storage , Kubernetes and Durable execution, with expertise in cloud-native and on-premises solutions. She ensures customer success and maturity by delivering effective, simplified solutions.

Geetha is a Solutions Architect and Customer Success professional specializing in big data management , storage , Kubernetes and Durable execution, with expertise in cloud-native and on-premises solutions. She ensures customer success and maturity by... Show more

Paolo Insogna

Paolo Insogna

Node.js TSC Member, Principal Engineer at Platformatic, Polyglot Developer. RPG and LARP addicted and nerd on lot more. Surrounded by lovely chubby cats.

Node.js TSC Member, Principal Engineer at Platformatic, Polyglot Developer. RPG and LARP addicted and nerd on lot more. Surrounded by lovely chubby cats. Show more

Anubhav Singh

Anubhav Singh

A seasoned developer since the pre-Bootstrap era, Anubhav has extensive experience as a freelancer and AI startup founder. He authored "Hands-on Python Deep Learning for Web" and "Mobile Deep Learning with TensorFlow Lite, ML Kit, and Flutter." A Google Developer Expert in ML & GCP, he was a co-organizer for TFUG Kolkata and formerly led the team at GDG Cloud Kolkata. Anubhav is often found discussing System Architecture, Machine Learning, and Web technologies.

A seasoned developer since the pre-Bootstrap era, Anubhav has extensive experience as a freelancer and AI startup founder. He authored "Hands-on Python Deep Learning for Web" and "Mobile Deep Learning with TensorFlow Lite, ML Kit, and Flutter." A Goo... Show more

Ulrika Hedlund

Ulrika Hedlund

Ulrika Hedlund is a Swedish tech entrepreneur with a passion for technology and storytelling. She is the founder and CEO of Storyals, an Ed-Tech company with a mission to revolutionize corporate training on new digital ways of working through video-based storytelling. Ulrika has authored numerous courses, she is a frequent blogger, public speaker, and an active spokesperson for women in IT. She has been identified as a top technology visionary and selected as a trusted advisor to Microsoft as part of their Regional Director Program. Ulrika has an MSc in Electrical Engineering from the Royal Institute of Technology (KTH) and an Executive MBA from the London Business School (LBS).

Ulrika Hedlund is a Swedish tech entrepreneur with a passion for technology and storytelling. She is the founder and CEO of Storyals, an Ed-Tech company with a mission to revolutionize corporate training on new digital ways of working through video-b... Show more

Michelle "MishManners" Duke

Michelle "MishManners" Duke

Mish is a multi-talented personality in the tech and gaming communities. Mish has worked in the technology space for the last decade and has a tonne of experience in developer advocacy, community management, marketing, and content creation. Mish has spoken at over 400 events on topics like AI, the future of work, communication, teamwork, and has given technical demos. She's a respected leader in the hackathon community, having won, organised, and mentored over 120 hackathons.

Mish is a successful entrepreneur and founder, having co-founded several companies – including an artificial intelligence company, and as a result, sits at the forefront of Melbourne’s science, tech, esports, and startup scenes. In her 'spare' time she’s a streamer, journalist, loves playing sports, and is always working on something exciting.

Mish is a multi-talented personality in the tech and gaming communities. Mish has worked in the technology space for the last decade and has a tonne of experience in developer advocacy, community management, marketing, and content creation. Mish has ... Show more

Fabrice Bloch

Fabrice Bloch

Statisticien public, agiliste militant, formateur en design-thinking et en leadership

Statisticien public, agiliste militant, formateur en design-thinking et en leadership Show more

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

Gabriel L. Manor

Gabriel L. Manor

Gabriel is an engineering executive with extensive experience in security and developer platforms. Over the years, I have worked as a technical leader and principal engineer at large corporations such as Cisco and Palo Alto Networks and a few startups.
For the last couple of years, Gabriel has mainly focused on fine-grained authorization. As the VP of developer relations at Permit.io, he advocates for and creates content around security and permissions, guiding engineers in this journey.
In my spare time, I'm an avid writer, kitchen enthusiast, and adventurous traveler.

Gabriel is an engineering executive with extensive experience in security and developer platforms. Over the years, I have worked as a technical leader and principal engineer at large corporations such as Cisco and Palo Alto Networks and a few startup... Show more

Ben Kadel

Ben Kadel

Developer, Presenter/Teacher, Open source advocate, Ultimate frisbee player & Board game hoarder.
I love the fact that I get to code for a living, but I am also incredibly passionate about sharing, collaborating and helping others on their dev journey!
I also have a growing YouTube channel (youtube.com/benkadel), where I try to make entertaining & educational content about programming, the tech industry and specific tutorials to breakdown complex topics.
I adore presenting, story-telling and just generally engaging with an audience. If I am able to make life, even just a little brighter for someone then I have succeeded!

Developer, Presenter/Teacher, Open source advocate, Ultimate frisbee player & Board game hoarder. I love the fact that I get to code for a living, but I am also incredibly passionate about sharing, collaborating and helping others on their dev journ... Show more

Stefan van der Wiele

Stefan van der Wiele

With over 15 years of experience Stefan has proven himself an expert on all things identity. Thanks to his designing and implementing skills in complex identity solutions he knows how to translate a business case into a technical solution.

Stefan is a speaker at multiple small and big Microsoft and non-Microsoft events focusing on identity and the cloud. He explains to all who need to know how identity works and how and why we need to protect it.

With over 15 years of experience Stefan has proven himself an expert on all things identity. Thanks to his designing and implementing skills in complex identity solutions he knows how to translate a business case into a technical solution. Stefan... Show more

Nikola Mitrović

Nikola Mitrović

Seasoned software engineer with experience that spans nearly a decade, with technical expertise in micro-frontend architecture and web performance. Enthusiastic public speaker with a passion for crafting exceptional web experiences. Business domain expertise in areas like EdTech, HealthTech and Digital Identity.

For the last couple of years in leadership roles, inspiring a culture of technical excellence, continuous learning, collaboration and psychological safety within the organization. Leading with empathy, honesty and passion, empowering team with trust and autonomy.

Seasoned software engineer with experience that spans nearly a decade, with technical expertise in micro-frontend architecture and web performance. Enthusiastic public speaker with a passion for crafting exceptional web experiences. Business domain e... Show more

Liji Thomas

Liji Thomas

Liji Thomas is a seasoned technologist with over 15 years of experience in creating transformative digital experiences. As Engineering Director at H&R Block, she drives innovation by leveraging generative AI to enhance customer experiences and deliver business value. Her expertise spans AI, machine learning, natural language processing, and conversational AI.

Liji is passionate about harnessing AI's transformative potential to revolutionize business and human interaction with technology. A thought leader in the field, she actively shares her insights through speaking engagements, publications, and community involvement. Committed to diversity and inclusion, she mentors aspiring technologists and advocates for the next generation of AI leaders.

Liji Thomas is a seasoned technologist with over 15 years of experience in creating transformative digital experiences. As Engineering Director at H&R Block, she drives innovation by leveraging generative AI to enhance customer experiences and delive... Show more

Lesley Crook

Lesley Crook

Help people adopt AI in a way that feels human with "lived intelligence", common sense, empathy. Nurture moving teams from fear of AI to curiosity, creativity, and confident collaboration.

Lead Microsoft Copilot adoption through a people‑first launch, communications, and Champion networks, surfacing real success stories and demonstrating clear value and ROI.

Coach individuals and small businesses to use free, open‑source AI responsibly and creatively.

Founder of MVP Viva Explorers, creator of Viva Origami, and architect of a Microsoft‑endorsed Viva Wayfinder onboarding experience. Co‑author of the adoption chapter in "Microsoft Teams Administration Cookbook", and a regular Microsoft event speaker and blogger.

MVP for 11 years. MCT for 1 year; AB-731 Certification. 15 years at GSK Communications. Proudly “the commsiest person in tech and the techiest person in comms.”

Help people adopt AI in a way that feels human with "lived intelligence", common sense, empathy. Nurture moving teams from fear of AI to curiosity, creativity, and confident collaboration. Lead Microsoft Copilot adoption through a people‑first la... 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

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

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.