JavaScript experts, mentors, speakers
Explore personalities and their talks, workshops, videos, and articles. While we focus primarily on JavaScript and frameworks like React, Vue, Svelte, and Node, you may find experts on other fields on our Portal. To name a few – Testing, DevOps, Machine Learning, and many more!

David Sherret
Deno, Canada
I'm David and work as a software developer on Deno. In the past, I worked professionally in the medical device and healthcare industry. I maintain several TypeScript related open source projects and have been using TypeScript for almost 10 years.

Michael Hablich
Google (Chrome team), Austria
Michael Hablich is a Product Manager at Google working on Chrome. There he focuses on removing friction for developers that need to test and debug web applications. In the past he worked as a developer, tester, agile coach, program manager, and engineering manager. He enjoys spending time with his daughters, rock climbing, and scuba diving.

Lee Rowlands
PreviousNext, Australia
Lee (larowlan) has been a major contributor to Drupal (🙀) for over 16 years. Lee is a Drupal core Framework manager, member of the Drupal security team and is passionate about code quality. More recently he has turned his focus to JavaScript, most notably React, Redux and Next.js, with Drupal's move to being a headless-first CMS. Lee was one of the primary architects of Drupal's testing architecture and champions automated testing and build processes. Lee has worked on several of Australia's largest websites during his 13 years as a Senior Developer with one of Australia's most trusted agencies: PreviousNext.

Björn Ritzl
Defold Foundation & Refold, Sweden
Chairperson of the Defold Foundation, overseeing development of the free and source available Defold game engine. Co-founder of Refold. Worked with mobile game development since before the smart phones. Enjoys old school games and traditional roguelikes.

Pooja Mistry
Postman, USA
Pooja Mistry(@poojamakes) is a Developer Advocate at Postman, an API platform with over 25 million users. She is passionate about the intersection of technology and community, and she works to expand the reach of Postman’s API Platform to developers worldwide. Before working at Postman, Pooja led the Partnership Advocacy Program at IBM and worked to build communities around sharing technology insights in the API, APIOps, Integration, and Data and AI space. Pooja loves to learn, teach, and share her knowledge with developers. Along with being a proud plant mom, she strongly believes in helping new technologists get up and running with technology and feel confident in their abilities to make!

Josefine Schaefer
Storyblok, Germany
Josefine is currently a Developer Relations Engineer at Storyblok, a Google Developer Expert for Web Technologies and a Girl Code Ambassador. She is passionate about advocating for Accessibility and making the web a little more inclusive, one page at a time.
Nils Hartmann
Freelancer, Germany
Nils Hartmann is a freelance software architect, developer and trainer from Hamburg. He mainly works with Java, JavaScript/TypeScript and React.

Matt Landers
WP Engine, USA
Matt Landers leads the DevRel team at WP Engine, after joining the company in 2019 as a Technical Architect who was (and still is) super passionate about headless. That passion ultimately played a major role in the release of Atlas, which pairs WP Engine’s industry-leading WordPress platform with Node.js hosting to enable headless solutions using modern frameworks and technologies like React, Vue, and more. Before joining WP Engine, he served as Technology Evangelist at Microsoft, where he educated developers on the advantages of adopting .NET and worked with Fortune 100 companies to build some of the largest enterprise systems as an Architect. Additionally, Matt founded Covalence, a coding bootcamp, channeling his passion for teaching developers.

Jason Jean
Nrwl, Canada
Jason is an Architect at Nrwl on the Nx Core Team. He works with Fortune 500 companies across different industries to enable them to develop like Facebook, Microsoft, and Google. Along with development, Jason is also an enthusiast of board games and mechanical keyboards.

Guillermo Gutierrez Almazor
DNSimple, Spain
Guillermo thinks that crafting software is more like gardening. He’s been dealing with legacy codebases for as long as he can remember and has helped several teams improve their skills around it.

Nick Hehr
Viam Robotics, USA
Nick is an empathetic community member, full-stack developer, avid climber and cyclist. He is currently a Senior Developer Advocate at Viam where he helps people build and manage their hardware projects from anywhere in the world. He is an invited expert with TC53 to help shape the future of JS on things. In his free time, he tinkers with home automation and robots built with JavaScript. His mustache is a figment of your imagination.

Garth Henson
CareAcademy, USA
Meet Garth Henson, a seasoned tech enthusiast with a rich career spanning big tech giants like Amazon and Microsoft, as well as the enchanting worlds of Disney and Lucasfilm. With a primary focus on full-stack web and cloud architecture, Garth has navigated the digital realm with expertise. Currently, he is the leader of product, design, and engineering at CareAcademy, where he is dedicated to shaping a smarter future in healthcare. As an active startup advisor and mentor, Garth has shared his wisdom and guidance with both students and budding entrepreneurs alike.

Mikhail Burtsev
DeepPavlov.ai, UK
Mikhail Burtsev is a head of Neural Networks and Deep Learning Laboratory at Moscow Institute of Physics and Technology. He is also a founder and leader of open-source conversational AI framework DeepPavlov. Mikhail had proposed and co-organize a series of academic Conversational AI Challenges (including NIPS 2017, NeurIPS 2018, EMNLP 2020).
His research interests are in the fields of Natural Language Processing, Machine Learning, Artificial Intelligence and Complex Systems. Mikhail Burtsev has published more than 20 technical papers including – Nature, Artificial Life, Lecture Notes in Computer Science series, and other peer-reviewed venues.

Bartek Iwanczuk
Deno, Poland
Bartek started contributing to Deno in late 2018, becoming the first employee to Deno Land in December 2019. Currently leading the CLI team.

Florian Rappl
smapiot, Germany
Dr. Florian Rappl is a solution architect from Germany who specializes in the creation of scalable distributed web applications. He is almost exclusively working on micro frontend solutions. Florian is a long-time Microsoft MVP in the development tools area.

Olena Kutsenko
Confluent, Germany
Olena is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven.
A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers.
As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community.

Dan Kochetov
Drizzle Team, Ukraine
Dan Kochetov, full stack web developer & system architect with 10 years of expertise, AWS expert, open source contributor, co-founder of Drizzle Team.

Matteo Frana
React Bricks, Italy
I am from Bergamo, Italy, I have a son of 7 and a daughter of 4. I program since I was 10 (it was 1988, GW-BASIC on a IBM 8088) and develop web apps since 1996. I’m in love with React and my mission is making content editing fun with React Bricks. I play the piano, I try to play the guitar and I write songs. I like cooking and I'm interested in quantum mechanics.

Neciu Dan
Rover.com, Spain
Neciu Dan is the technical co-founder and tech lead of CareerOS, where he spearheads the development, maintenance, and scaling of the main application. Bringing over 12 years of engineering expertise to the table, Dan has a proven track record in the tech industry, having previously served as a Senior Product Engineer at the New York E-commerce brand, AdoreMe, and as a Senior Software Engineer at the food delivery company, Glovo.

Oren Rubin
Testim, USA
Oren Rubin is the founder and CEO of Testim, an AI-based test automation platform that speeds the authoring of resilient end-to-end tests. Oren has over 22 years of experience in the software industry, building mostly test-related products for developers at IBM, Wix, Cadence, Applitools, and Testim.io. In addition to being a busy entrepreneur, Oren is a community activist and the co-organizer of the Selenium-Israel meetup and the Israeli Google Developer Group meetup. He has taught at Technion University and mentored at the Google Launchpad Accelerator.

Lukonde Mwila
SUSE, South Africa
Lukonde is a Principal Technical Evangelist at SUSE and is an AWS Container Hero. He specializes in cloud and DevOps engineering and cloud-native technologies. He is passionate about sharing knowledge through various mediums and engaging with the developer community at large.

Michael Milewski
Zepto #ABetterWayToPay, Australia
Michael is a developer keen on the people side of things. He loves pairing, and in particular with people new to writing software. He especially likes driving software out with tests and directing the evolution of the design. In his spare time, he does a bit of paddle boarding, camping and watching any one of his 4 kids excel above anything he ever managed to achieve.

