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!

Santosh Nikhil Kumar
Byte Dance, USA
I currently work at ByteDance as an Engineering Lead for E-Commerce payments system software driving the business of TikTokShop product in the US. I graduated from Carnegie Mellon University with a Masters degree and Vellore Institute of Technology with a Bachelor's degree.
I’m a seasoned Silicon Valley professional in the Payments domain with proven engineering expertise for 10+ years. I pioneered the Software Engineering marvel resulting in the increase of user count of products by about 800 times in less than 6 months, generating kick-start revenue of $120k per week during 0 to 1 product growth, tripling the revenue from $5 billion to $14 billion in less than 5 years by getting over the plateau growth, for some of the prominent products in the world like iPhone, Apple Watch, iPad, AWS Amplify, Amazon Alexa mobile app, TikTok shop and Oracle backend server supercluster. The by-products of these business results are multifold improvement in Engineering productivity and grooming myriad software professionals for world class companies like Apple, Amazon, Oracle, SanDisk.

m4dz
alwaysdata, France
m4dz is a curious animal. Former Frontend Dev, Devtools enthusiast, he has made the Developer eXperience (DX) his cherished topic. All the technologies are under his radar to get things ever simpler. His moto: "Developers are users just like you." As a life-long dreamer his favorite book will ever remains "Alice's Adventures in Wonderland".

J. B. Rainsberger
jbrains.ca, Canada
J. B. Rainsberger (@jbrains@mastodon.social) is a professional 5-pin bowler who enjoys consulting with software development professionals and the companies that employ them. He guides companies to better results from their software projects while he helps individuals work with less stress. He wants everyone to actually realize the promised benefits of Lightweight approaches to software development, which includes making sense of the "Agile" chaos of the past quarter-century. Companies engage him for remote working sessions, training courses, on-site workshops, and in-person consulting visits. Individuals, especially those stuck in companies that don't have the budget for formal consulting, can get the help they need by joining J. B.'s mentoring group by visiting https://experience.jbrains.ca. (Quite often, they can convince their employer to pay for that!) He lives in Atlantic Canada with his wife, Sarah, who is busy showing the Open Source world how to have quality documentation even with a mostly-volunteer project community. They travel to Europe less often than they used to, which makes each visit even more enjoyable.

Lenny Burdette
Apollo, USA
Lenny is a Solutions Architect at Apollo Graph in San Francisco, CA. He was previously a software engineer and graph champion at Square. When he’s not thinking and talking endlessly about GraphQL and frontend, he’s probably trying to recreate some dish from a YouTube cooking video or hanging out with his wife and son.

Johan Eliasson
Nhost, Sweden
Johan Eliasson is CEO & Co-Founder of Nhost. Johan has been building apps his whole life and is passionate about making it easy to develop web and mobile apps. Prior to Nhost, Johan helped grow his family business, driving innovation in the Swedish water treatment market. Johan graduated from Blekinge Institute of Technology with a Master of Science in Computer Security, Computer & Information Systems.

Adam Jahr
Vue Mastery, USA
Adam Jahr is the co-founder of Vue Mastery, the ultimate learning resource for Vue developers and the biggest financial backer of the Vue framework. As an e-learning educator, he has taught hundreds of thousands of developers worldwide and teaches live at conferences across the globe. Adam is a proud Vue.js Community Partner. When he isn't teaching Vue, he enjoys creating interactive art installations.

Chinmay Gaikwad
Epsagon, USA
Chinmay is a Technical Evangelist at Epsagon with experience in data center and cloud technologies. Previously, he worked at companies such as Intel, IBM and early-stage startups. Chinmay has an MS in Computer Science from Columbia University and an MBA from UC Berkeley. In his free time, he loves traveling and exploring restaurants.

Jen Person
Squid Cloud, USA
Jen Person is a developer advocate for Squid Cloud, an enterprise-grade backend-as-a-service that connects to and secures any API or data source. With nearly a decade of experience in developer products, Jen has extensive experience connecting with developers through talks, blogs, events, social media, and videos. She is passionate about creating the best development experiences so devs can focus on creating the best applications.

Michael Poteat
Volley Inc, USA
Located in the vibrant city of San Francisco, Mike Poteat is a committed technical leader, skilled software engineer, and approachable people manager. His areas of interest are wide-ranging and encompass programming, type theory, pure mathematics, and more.
In the open-source world, Mike has had the opportunity to contribute to meaningful projects. One of these, hkt-toolbelt, applies higher-kinded types to TypeScript in an attempt to expand its functionality. Additionally, he's worked on spellbound, an agent-based LLM-powered VS Code extension that aims to enhance the usability of the platform.
Currently, Mike finds himself immersed in the voice AI industry at a startup backed by Y Combinator. He's part of a team working on the front lines of artificial intelligence, continually learning and evolving their approach to create cutting-edge solutions.
Away from his day job, Mike takes time to reflect and share his experiences on his blog, code.lol. He delves into topics around machine learning, programming, and other tech-related subjects, hoping that his musings might offer value to others exploring these fields.

Pablo Ibanez
Hello Magazine, UK - Spain
Tech Lead with over 15 years of experience in IT across various industries, including media, public sector or finance. Proven track record in leading development teams, designing scalable systems, and delivering impactful solutions. Recent work focuses on the practical implementation of AI in production environments, enhancing workflows, automating processes, and driving innovation.

Alexandre Rivest
Nexapp, Canada
Developer at Nexapp for 9 years, Alexandre has supported more than a dozen clients in the development and design of their products. As a senior frontend developer, he ensures he stays up to date with the latest development practices. In recent years, he has taken a particular interest in the educational aspect of his work through training and mentoring. What motivates him on a daily basis is sharing his experiences and learnings with his colleagues and clients.

Nina Torgunakova
Evil Martians, Portugal
Frontend Engineer at Evil Martians, a product development consultancy. My great inspiration is to shape thoughts into easy-to-use products and articles, and I love to speak publicly. I'm passionate about learning different front-end technologies, and always try to see both pros and cons of using them.

Dora Makszy
Norway
Dora Makszy, an experienced product design lead, focuses on seamless product delivery through efficient collaboration with cross-functional teams, especially developers. With over 17 years of international experience in various roles (developer, business analyst, manager and mainly a designer), she has a comprehensive understanding of the entire process.
Leo Goldfarb
Albato, Portugal
With 15+ years in Digital Marketing and Tech, Leo has built and led numerous high-performing teams and streamlined key business operations. He spent 5+ years as COO at iProspect, a major performance marketing agency within the Dentsu group. Prior to that, he held roles as a marketing expert at Booking.com and as a business consultant for IBM, Microsoft, and Hewlett-Packard. Currently, at Albato, a no-code integration platform, Leo leads customer acquisition and business development efforts. Albato helps SaaS companies drive growth and enhance customer experience through native, embeddable API integrations.

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.

Yossi Kahlon
Squid Cloud, USA
Yossi Kahlon is a distinguished technology leader who has spearheaded transformative tech solutions, including leading the Google Cloud Console team in New York, significantly contributing to the development of Google Docs, and leading privacy and security efforts at Waze. As a former Director of Engineering for ClickHouse, his work has been pivotal in advancing database technologies for high-scale, real-time analytics. Yossi brings his wealth of knowledge and experience to co-founding and building Squid AI, an AI agent platform built for developers by developers.

Nitin Gupta
Expedia, India
Nitin is a dynamic Full Stack SDE 2 at Expedia Group, India, who thrives on crafting exceptional web experiences. Over the years, he’s worked his magic on projects for Marriott, H&M, Expedia, and more. While React is his go-to tool, his tech arsenal also includes Swift, Kotlin, Spring Boot, GraphQL, and a bunch of other developer superpowers. Known for his love of dev jokes and pun-packed humor, he’s the kind of colleague who keeps both the codebase and the conversations lively.
When he’s not coding, Nitin is either jet-setting to new destinations, smashing shuttlecocks on the badminton court, or jamming out while learning the drums. A fun mix of tech wizardry and good vibes, he’s always up for an adventure—be it debugging or backpacking!






