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!

Kathleen McMahon
Software Engineer, Designer & Conference Speaker, USA
Kathleen is a software engineer, designer, and conference speaker, who has deep industry experience that fuels her passion for making apps beautifully accessible. She’s a Color Module Specification Editor for the W3C Design Tokens Community Group. She is the Creative Director for the CXsisters network in her spare time and the best lanterne rouge cyclocrosser you’ll ever meet.

Gabriel L. Manor
Permit.io, Israel
I'm a senior full-stack developer with a favorite kid named Security. For over ten years now, I've enjoyed writing clean code, simplifying complex problems, leading feature development, and influencing innovation every day. When I’m not busy with code, you’ll find me talking about application performance, building confidence in code-bases, product architecture, developing organizational culture, and other nerdy dev stuff. Besides all that, I'm a father of two, a hobbyist photographer, lego builder, and food creator.

Alexandra Spalato
Storyblok, Spain
Alexandra Spalato is a DevRel Engineer at Storyblok, specializing in JAMstack & headless architecture. With a background in freelance dev & entrepreneurship, she brings a unique perspective to successful web projects. Alexandra drives progress in tech industry through speaking at conferences & empowering developers.

Vladimir de Turckheim
Sqreen, France
Vladimir works as a software engineer at Datadog, where he builds a tool to secure web applications. He used to be a professional security auditor and a web developer in agencies. He is one of the most active members of the Node.js Security Working Group, where he handles the security of Node.js and its ecosystem. Vladimir is an official Node.js collaborator and his contributions mostly focus in the domain of security and monitoring. He also often give talks and training to software engineers to teach them about application security.

Vanessa Otto
Zavvy GmbH, Germany
Vanessa is a Web Developer. She has an M.Sc in Media Informatics with a focus on Human-Computer-Interaction. Vanessa is the Lead Frontend Developer at Zavvy. She is a co-host of the podcasts expect(Exception), Working Draft, and Ausbaufähig. Vanessa is a Chapter Leader of the Front-end Foxes helping women with their first coding and speaking experiences. She was a member of the JS Kongress Program Committee.

Naresh Ramesh
Cloudfare, UK
Naresh is a software engineer on the Agents team at Cloudflare, building opinionated abstractions on the Cloudflare Developer Platform to run agents on production and give them access to sandbox environments. He was a founder prior to joining Cloudflare, building coding agents that were at the top of SWE Bench and was part of the YCombinator Summer 2023 batch. He was a founding engineer building payments infrastructure for India in the early part of his career and contributor to Open Source projects like gRPC.

Nathaniel Okenwa
Twilio, UK
Nathaniel is a Developer Evangelist at Twilio working to create magical moments for developers with their products. He is a die hard fan of JavaScript, sports, superheroes and mixed martial arts. His life goals are to have Batman's brains, Deadpool's humour, T'Challa's fashion sense, Killmonger's Wokeness, and Thanos' determination! He serves the Javascript community in the UK and the rest of Europe.

Chris Bell
Knock, USA
Chris is the co-founder and CTO at Knock, a company that helps companies send better notifications to their users. He's an avid Elixirist and an active member of the community, running the popular ElixirTalk podcast and co-organizing the EMPEX conference. In his spare time, he hangs out with his mini-dachshund puppy, Trout, and cycles.

Taz Singh
Guild, UK
Taz is the Founder of Guild and long time participant in communities around the world. He has over two decades of software experience ranging from video games & robotic AI to consumer application development, has served as a principal technical management consultant, and is a serial startup founder. When he's not behind his computer, he can be found chasing his cat around the house or being chased by cars around a race track.
Jessica Cregg
LaunchDarkly, UK
Jessica is a Developer Advocate at LaunchDarkly, where she speaks about change and writes about the human implications of engineering decisions. She writes for a selection of tech publications and works as a co-organiser of DevOpsDays London and the regular meet-up group DevSecOps London Gathering. She also works with Coding Black Females to improve equal and equitable representation within the technology industry.

Marco Ippolito
HeroDevs, Italy
Marco is a Senior Security Engineer at HeroDevs.
Active contributor, releaser, and member of the Node.js Technical Steering Committee, he is a renowned international speaker and a former Microsoft MVP. Marco is actively involved in many projects within the Node.js ecosystem and also serves as a delegate in TC39.

Ayodele Aransiola
Gopaddi, London, United Kingdom
Mentorship available
Ayodele is a Developer Relations engineer and a solution architect. Ayodele is passionate about developer education and product adoption. He's passionate about learning, building, and teaching web technologies, and tools that can help developers succeed in their role.

Joel Lord
Red Hat OpenShift, Canada
Joel Lord is passionate about the web and technology in general. He likes to learn new things, but most of all, he wants to share his discoveries. He does so by travelling at various conferences all across the globe.
He graduated from college in computer programming in the last millennium. Apart from a little break to get his BSc in computational astrophysics, he was always in the industry.
As a developer advocate with Red Hat OpenShift, he meets with developers to help them make the web better by using best practices around Kubernetes.
During his free time, he is usually found stargazing in a camping site somewhere or brewing a fresh batch of beer in his garage.

Tamas Piros
Cloudinary, UK
Tamas is a Google Developer Expert in Web Technologies and a Developer Experience Engineer. He has more than a decade of experience delivering technical training to large, prestigious organisations. He is passionate about unlocking the latest & greatest features of web development.

Nico Martin
Hugging Face, Switzerland
Nico Martin is a Machine Learning Engineer with focus on WebML at 🤗 Hugging Face and Google Developer Expert in AI and Web Technologies from Switzerland.
He specializes in making AI accessible through web browsers, developing tools that simplify ML integration for developers. Nico actively shares his expertise through workshops, articles, and conference presentations, bridging the gap between web development and machine learning communities.

Kevin Ball
Mento, USA
Kevin Ball is VP of engineering at Mento, focused on helping modern workers grow in their careers via a unique combination of coaching and mentorship. He is also a trained coach who works with engineers and engineering managers, a panelist on the JSParty podcast, and publishes Human Skills, a series of weekly interviews of tech industry leaders on all of the non-technical skills that go into success in the tech industry.
Kevin is an experienced engineer, manager, and entrepreneur who has co-founded and acted as CTO for 2 companies, founded the San Diego Javascript Meetup, and has written articles for publications including Smashing Magazine, web designer magazine, Net magazine, and LeadDev. He has spoken around the world including conferences like All Things Open, Web Unleashed, NodeConf Colombia, and React Amsterdam.







