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!
Miranda Babbitt
Miranda Babbitt
Zapier, Canada
Miranda Babbitt is the Partner Marketing Manager at Zapier, where she orchestrates the lifecycle for over 7,000 integration partners and spearheads co-marketing efforts with high-value partners like Meta, LinkedIn, and Google. As a die-hard fan of all things AI, automation, and communication, Miranda has driven initiatives that have significantly boosted partner engagement, ARR, and team collaboration. Before joining Zapier, she honed her skills at Thinkific, where she led platform marketing strategies and championed a first-of-its-kind virtual partner summit. Fun fact: Miranda also runs a design blog, Hyppïa Homes, all about exploring how design and one's sense of self intersect.
George Kouzmov
George Kouzmov
BlackRock, UK
George is a TechLead @ BlackRock with 12+ years of experience in the FinTech industry. He has architected, designed and build various systems, from data warehouses to large MFEs. He lives and breathes in the full stack space between Data and UX. Proven ability to architect, design, and implement complex solutions while fostering high-performing engineering cultures.
Daniel Espino García
Daniel Espino García
Mattermost, Spain
Fullstack Software Design Engineer at Mattermost. He has helped with the re-architecturing of the new version of the mobile app, written in React Native. Confident with React, React Native and Go, and always happy to learn new things. Fun fact: studying psychology for fun.
Nicolas Gallagher
Nicolas Gallagher
Meta, USA
Working on @reactjs for the web. I currently work at Meta on cross-platform React frameworks. Our goal is to improve engineering efficiency and product quality, to reduce product time-to-market, and to produce high-quality native user interfaces from existing web code. The software we work on is used by products like Facebook, Instagram, Messenger, Oculus, and Workplace.
Oli Legat
Oli Legat
AG Grid, UK
Oli started his career crafting virtual worlds as a video game developer, driven by a love for immersive experiences and creative problem-solving. That journey led him to Google, where he honed his engineering skills at scale. Eventually, his focus shifted toward the web—specifically front-end development—where he found a new passion: building fast, accessible, and user-friendly interfaces. Now, Oli channels that passion into refining enterprise-grade libraries at AG Grid. He cares deeply about accessibility (a11y) and user experience, always striving to make the web a more inclusive and intuitive place for everyone.
André Bauer
André Bauer
bettermarks, Germany
André is a seasoned developer with over 20 years of experience and is currently a Principal Engineer at bettermarks, a Berlin-based EdTech company. When AFK, he loves biking, watersports and woodworking.
 Max Strivens
Max Strivens
StackOne, UK
Max Strivens - Solutions Engineer at StackOne - We are a unified integration provider and integration layer for AI.
Simon Ouyang
Simon Ouyang
YC-backed Startup (Early-Stage), Palo Alto, CA
Mentorship available
Simon Ouyang is a Full-Stack + AI Engineer focused on building production-ready React applications and reliable AI workflows. He has worked in early-stage, YC-backed startup environments delivering 0→1 systems across both frontend and backend. His independent research explores agentic workflows, RAG architectures, and evaluation-driven AI development. Simon speaks at React Summit US 2025 and JSNation US 2025, where he shares practical insights at the intersection of modern frontend engineering and trustworthy AI.
Michael Roberg
Michael Roberg
Checkout.com, UK
Backed by 15 years of architecting, developing, and managing software teams, I’m an experienced software EM, based in London. My passion is building a great team culture, and delivering through lean & agile frameworks.
Mikhail Kuznetsov
Mikhail Kuznetsov
BGB Group, Portugal
Mikhail is a seasoned developer and tech leader with track record of working with both large companies across EU and small startups. Mikhail is passionate about new technologies and loves to share his knowledge with the world.