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!
Elisa Heikura
Elisa Heikura
Koodarikuiskaaja, Finland
I work with organisations, teams and individuals. I teach, preach and coach. I’m deeply in love with teamwork, empathy, collective intelligence and helping people understand themselves and each other better. These three are my main topics at the moment: 1. Teamwork needs work Team is the most important unit of work. If the team has collective intelligence, it’ll outsmart and outperform heroic geniuses easily. So what are outstanding teams made of? 2. Why don’t they get me? Successful communication, interaction and teamwork require that we understand ourselves and each other. 3. The next most important skill to learn Receiving feedback well is a necessary life skill and the one who can turn feedback into growth will be better off than the rest.
 Greg Brimble
Greg Brimble
Cloudflare, USA
Greg Brimble is an experienced Systems Engineer helping to build Cloudflare's Developer Platform. He is primarily focused on Cloudflare Pages & Workers, a platform for developers who want to build full-stack, affordable, and globally scalable applications. He spends a lot of time thinking about the experience for Cloudflare's developers, but also (and maybe more importantly) the experience for their end-users. How can applications, frameworks, and platforms all work together to produce the most performant, most accessible, and most delightful experience for users, regardless of where they are, what device or internet connection they have, or what they're trying to achieve.
Perttu Lähteenlahti
Perttu Lähteenlahti
RevenueCat, Finland
Perttu is a designer and software engineer, with 10 years of experience designing and building web and mobile applications. He loves hacking with technology and building things. When he’s not sitting in front of a computer, he likes to renovate apartments.
Jenn Junod
Jenn Junod
Aiven, USA
Jenn is a multifaceted individual with a passion for technology and a heart for people. Currently, she works as a Developer Advocate for Aiven, where she helps developers harness the power of data infrastructure. Outside of work, Jenn hosts Teach Jenn Tech, about exploring technology. Jenn also hosts a thought-provoking podcast called Sh!t You Don't Want to Talk About, where she fearlessly dives into challenging topics such as mental health, equity, and diversity. Her goal is to create a safe and welcoming space for honest conversations, where people from all backgrounds can feel heard and understood. Jenn's focus is on PostgreSQL and TypeScript and she is always eager to learn and explore new technologies. She thrives on diving deep into complex problems, finding elegant solutions whether she's coding, teaching, or podcasting. Jenn is an advocate for social justice, striving to make the tech industry more equitable and diverse, ensuring everyone has a seat at the table. In all her endeavors, Jenn is a force to be reckoned with, fueled by her love of people and her passion for technology.
Benjie
Benjie
Graphile, UK
Community-funded OSS maintainer, building for GraphQL, Node.js and PostgreSQL (PostGraphile, Graphile Worker, …). GraphQL TSC & Spec WG member
Aurora Scharff
Aurora Scharff
Crayon Consulting, Norway
Aurora Scharff is a software developer and Microsoft MVP from Norway. She serves as a consultant at Crayon Consulting, while also contributing as React Certification Content Owner at certificates.dev. She focuses on web development with extensive experience in React and Next.js, including active use of React Server Components. Aurora shares her knowledge through workshops, technical blog posts, social media, demo applications, and supporting fellow developers. She regularly presents internationally at recognized conferences, contributing to the global developer community through both her speaking engagements and educational content creation.
Simon Emanuel Schmid
Simon Emanuel Schmid
Edge & Node, Switzerland
Simon is enthusiastic about simplifying the complexities of our interconnected world. He applies this passion as a Lead Developer Relations Engineer at Edge & Node to enable the amazing projects in web3 building exceptional decentralised experiences leveraging The Graph. He joined the blockchain space professionally in 2017 as Head of Front-end/UX at Melonport which is now known as Enzyme Finance, one of the pioneering projects in DeFi and web3 and early adopter of The Graph.
David Mark Clements
David Mark Clements
Holepunch, Netherlands
David Mark Clements is the Platform Principal Architect of Pear Runtime by Holepunch. Writing JavaScript since '96, into Node.js from 0.8 (2012). Author, OSS Creator, Teacher, Consultant, Speaker helping to shape the ecosystem. Node Cookbook original and OpenJS Node.js Certifications lead. Driving innovation in the exciting peer-to-peer space, marking a new chapter in decentralized computing: pears.com.
Patrick Ecker
Patrick Ecker
Independent Consultant, Austria
Patrick is a frontend engineer at Rohea Oy, building the next big sales enablement platform built on Flow, ReScript, React and PHP. He is also core team member of the ReScript programming language, working on the language's tooling infrastructure and documentation website.
Kathleen McMahon
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.
Shy Ruparel
Shy Ruparel
Docker, USA
Sr. Developer Advocate at Docker.
Harshil Agrawal
Harshil Agrawal
Cloudflare, Germany
Working in the Developer Experience team at Cloudflare, Harshil enjoys sharing his learnings with the community. A JavaScript developer, open-source contributor, and a low-code enthusiast, Harshil loves experimenting with tech and building fun projects.
Omar Shehata
Omar Shehata
Snapchat, USA
Omar is a graphics programmer working on mapping software currently based in Ithaca, NY. He is the co-creator of a desktop game, Move or Die. He has published over a dozen flash games that have been played millions of times. He loves the the universal accessibility of creating things for the web and enjoys writing computer graphics tutorials to help others create awesome stuff for the web.
Ioana Teleanu
Ioana Teleanu
Miro, Romania
Ioana Teleanu is an experienced design leader specializing in AI-powered products. Currently, she is the Lead Product Designer for AI at Miro. Previously, she worked at UiPath on a product called Clipboard AI, which was granted Time Magazine's 'Best Invention of 2023' award. Before that, she contributed to multiple products within UiPath and ING Bank and provided consulting and design services for several early-stage startups worldwide. She's the creator and instructor of one of the most successful courses on AI for Designers, in partnership with the Interaction Design Foundation. As a seasoned design educator, she has launched courses with Domestika as well as her own design bootcamp, all while mentoring and sharing her insights as a designer within her community, UX Goodies. Through the UX Goodies channels, which together have over 300,000 followers, and her podcast, Honest UX Talks, Ioana strives to deliver value to her audience. She focuses on teaching designers how to prepare for the AI revolution and remain competitive in a rapidly changing landscape.
Alex Moldovan
Alex Moldovan
CodeSandbox, Romania
Alex is Product Engineer at CodeSandbox, where he mixes his passion user experience with the interest in creating better tooling for developers. He is also an organizer for JSHeroes, one of the biggest JS/Frontend conferences in Romania.
Naz Delam
Naz Delam
Salesforce Inc., USA
I’ve always believed the best leaders don’t just build great products – they build great people. Over the past decade, I’ve led engineering teams at LinkedIn, Netflix, and now Salesforce, where I serve as Director of Engineering for our Analytics Agent org. My focus: transforming how we build intelligence, not just software. From architecting AI agents that power Tableau’s next-gen analytics, to driving cross-functional collaboration across global teams, I thrive at the intersection of vision, velocity, and impact. But my mission goes beyond what happens inside one company. Through Peak Potential, the career accelerator I founded, I’ve helped hundreds of senior engineers and leaders grow into staff-level and leadership roles. I’ve seen firsthand how the right mix of mindset, mentorship, and strategy can unlock careers – and change lives. Whether I’m coaching engineers to find their voice, scaling systems for millions, or running and scaling a business (yes, I believe in bringing heart to everything I do), I lead with purpose and a deep belief in the potential of people. If you're building the future of tech, growing into your next big role, or reimagining what's possible – let’s connect.
David Dal Busco
David Dal Busco
Freelance, Switzerland
I'm a freelance web developer based in Zürich, Switzerland, and an open source enthusiast. In fact, I made over 7,000 commits on GitHub last year 😅. When I'm not busy building, you can find me literally running up mountains!
Bradley Farias
Bradley Farias
Socket Security Inc., USA
Bradley Farias has been in the Node.js community as a contributor, TC39 as a member, given workshops on Node.js, and worked on OSS projects as well. He is actively interested in pushing programmer experience APIs for developer tools. He is currently invested in security tooling and experiences which involves not just research into attacks but how to make programmers' experience with security more enjoyable.
Ujjwal Sharma
Ujjwal Sharma
Igalia, India
Ujjwal is a Compilers Hacker at Igalia working on TC39 and V8, a Node.js Core Collaborator, a TC39 Delegate and an International Speaker. He loves to talk about open source software, decentralization, cryptography, JavaScript and web standards.
Michael Shilman
Michael Shilman
Lab80, Korea
Building Storybook and Chroma.
Atila Fassina
Atila Fassina
CrabNebula, Germany
Atila is a self-taught developer and content creator who shares knowledge as a mean to learn things better. He's being working with web developments for sometime now. In Brazil and in Europe. Either speaking at conferences, recording videos on his youtube channel, or writing articles on Smashing Magazine, Dev.to, and his personal blog.
Jessica Cregg
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.
Glafira Zhur
Glafira Zhur
Semrush, Spain
GDE for Web, speaker, host of the "Inclusive Pineapple" podcast, organizer of MinskCSS, MinskJS and Accessibility Club Minsk. An unstoppable teacher in digital accessibility courses https://accessibilityunity.com/ 🙂
Farzad Yousefzadeh
Farzad Yousefzadeh
Stately.ai, Finland
Mentorship available
Building machines @statelyai Ex @epicgames Coach @mentorcruise ❤️ Statecharts, Finite State machines and XState