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!

Jo Franchetti
Deno, UK
Jo is an Engineer at Deno. She is passionate about improving developer experience, advocating for TypeScript and teaching good use of the web. She mentors junior developers, advocates a lot for mental health awareness and is devoted to improving the diversity and inclusivity of the tech industry.

Tara Z. Manicsic
Netlify, USA
Tara Z. Manicsic has spent her career using JavaScript on both back-end and front-end to try to help make coding the web a happy place for devs. She is currently working to bring Angular into the Jamstack at Netlify as a Developer Experience Engineer. As an international technical speaker and workshop leader, she conveys all she has learned while delivering horrible jokes. Tara is a lifelong student, teacher, and maker (crafts, IoT projects, tiny humans, and more). She lives in a house down by the river and hopes to meet you soon!

David Whitney
Electric Head Software, UK
David is the founder of Electric Head Software, working as an independent software consultant based in London focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations and start-ups. David has previously served as the chief coding technical architect for JustGiving, and helped market-leading organisations including JUST-EAT, Trainline and Vodafone improve their technical capabilities.

Tsahi Levent-Levi
Spearline, Israel
I am Tsahi Levent-Levi. The person behind BlogGeek.me and Chief Product Officer at Spearline. My blog focuses on rumblings about technology usually boiling down to WebRTC, CPaaS, Messaging, Disruption and other topics (Science Fiction anyone?) To put food on the table, I also consult in these domains, publish my own reports and run a WebRTC training.
During the past decade (and then some) I have taken part in the development of various telecommunication projects - mainly those related to VoIP and 3G. I've done so as a programmer, manager, marketer and CTO. This included developing the 3G-324M protocol stack from scratch, as well as managing the team that was in charge of developing and maintaining the H.323 protocol stack, along with other interesting projects.
I was the cofounder and CEO of testRTC, a self service SaaS company focused on testing, monitoring and support for WebRTC applications. In 2021, we sold the company to Spearline.
These days I am working as a consultant, analyst and entrepreneur on anything related to VoIP, but it mainly focuses on CPaaS, WebRTC and their potential for disruption.
I have an MSc in Computer Science and an MBA degree with a focus in Entrepreneurship and Strategy. Included in my resume are a few patents and being the chairman of different activity groups in the IMTC – an organization focused on interoperability of multimedia standards.
You can use the social media links to reach me or learn more about what I do and where.

Zoltan Kochan
Bit, Hungary
Lead maintainer of pnpm since 2016, which started as a completely independent open-source package manager for JavaScript.
Zoltan is an engineer at Bit. He works on the dependency management aspect of the Bit CLI.
Previously worked at JustAnswer, where Zoltan was mainly working on front-end infrastructure.

Deepu K Sasidharan
Okta, Netherlands
Deepu K Sasidharan is a Software Engineer by passion and profession. He is a Senior Developer Advocate at Okta. He is the co-lead of JHipster, and the creator of KDash and JDL Studio. He is a polyglot programmer working with Java, JavaScript, Go, Rust, and so on. He is also a cloud technology advocate and an open-source software aficionado. He has authored books on Full-stack development and frequently writes about Java, JavaScript, Go, Rust, DevOps, Kubernetes, Linux, and so on, on his blog.

Sudhanshu Yadav
Prophecy, India
Architect at Prophecy, Ex HackerRank. A JavaScript and React fan, with a deep interest on internals and making theories on how things work. Have authored BrahmosJS, react-number-format, packagebind and several other OSS tools. Also, runs a meet-up group to discuss internals of different tech stack.

Talia Nassi
AWS, USA
Talia Nassi is an international keynote speaker who delivers content on all things testing and quality. She is a developer advocate at Split.io where she works closely with engineering teams globally to ship software more efficiently. She is passionate about feature flagging, canary launches, CI/CD, testing in production, and A/B testing. She has spoken at countless conferences internationally, ranging from audiences of 100 to 4000!

Maxi Ferreira
Help Scout, Los Angeles, California
Maxi is a full-stack software engineer with a passion for creating delightful user experiences. He works at Help Scout as a Staff Frontend Engineer, specializing in frontend architecture, web performance, and third-party application development. Originally from Buenos Aires, Maxi now lives in Los Angeles, CA with his wife, two daughters, and two dogs.

Maël Nison
Mistral AI, France
Maël is a distinguished software engineer, recognized for his contributions to the tech industry. He is currently the lead maintainer for Yarn, a popular JavaScript package manager. Maël's expertise extends across multiple domains, but he specializes in front-end development, JavaScript, and TypeScript. Known for his practical and innovative solutions, Maël's work has been integral to improving JavaScript's ecosystem. Apart from his professional achievements, Maël is a passionate advocate for open source projects and contributes to various initiatives.

Alex Lakatos
Interledger Foundation, UK
Alex has spent the past 11 years working on the Open Web within Browser, Communications, and FinTech organizations. With a background in web technologies and developer advocacy, he's helped organizations build developer-friendly products while engaging with the developer community at large. As the new Technology Lead for the Interledger Foundation, he focuses on lowering the barrier to entry into the Interledger ecosystem and drive the adoption of the web standards powering the Interledger protocol. An avid traveller, it's likely you'll bump into him at developer conferences around the world.











