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!
Aditya Kaushik
Aditya Kaushik
NDTV, India
I'm a seasoned Product Manager with over five years of experience in a leading digital media company, where I have overseen the development and scaling of multiple high-traffic news platforms built on React. With an engineering background from a prestigious government college in Delhi, I bridge the gap between technical innovation and business strategy. Their expertise spans real-time user management, subscription lifecycle optimization, and cross-functional team leadership. I'm passionate about sharing actionable insights on building robust, scalable, and user-centric React applications that thrive in fast-paced, high-demand environments.
Interests:
Nathan Disidore
Nathan Disidore
Cloudflare, USA
Systems Engineer, Emerging Tech & Incubation @ Cloudflare. Helping you internet your things. Equally as likely to be hacking on a Raspberry Pi or baking one.
Timo Hoogland
Timo Hoogland
Netherlands
Livecoder, music technologist, educator. creative coding for sound, visuals and algorithmic compositions. maxmsp, jitter, javascript, pd, p5.js, mercury.
Richard Davison
Richard Davison
AWS, Sweden
Richard is a Sr. Partner Solutions Architect at AWS focusing on Application modernization using Serverless and Containers. During his 3-year tenure at AWS he has played a pivotal role assisting partners & customers in various industries with their cloud adoption and modernization strategies. Richard collaborates with the development teams and engineering leaders to optimize software delivery in the cloud, emphasizing best practices and AWS's capabilities.
Marissa Masangcay
Marissa Masangcay
Cloudinary, USA
Marissa Masangcay is a Technical Marketing Specialist for Cloudinary and has worked for the company since 2017. She has also served as one of Cloudinary’s Developer Support Engineers, where she responded to customers’ technical support requests and feature-related questions, as well as debugged customer issues and wrote code samples in multiple development frameworks. She has also served as a volunteer instructor for Girls Who Code, which is a nonprofit dedicated to teaching girls in grades 6-12 the fundamentals of coding. Marissa graduated with her bachelor’s degree in computer science from the University of San Francisco.
Blazej Abel
Blazej Abel
Landingi, USA/Poland
Blazej Abel - Entrepreneur, founder, and CEO of Landingi, one of the leading landing page platforms. An engineer by education. He bounded with the Internet industry for 20 years, when he started an interactive agency and spent most of his career close to website creation. Speaker at numerous conferences and a trainer. Husband, father, football player, cyclist and LEGO fan since 1982 :)
Mika Schafroth
Mika Schafroth
RELEX Solutions, Finland
Business-oriented software product engineer (M.Sc. in computer science) featuring 15 years of professional involvement in the entire life-cycle of digital products. Experience developing a variety of disruptive Internet technologies. Insights into modern travel, smart cities, the gig economy and social networking services.
Keren Kenzi
Keren Kenzi
Senior Software Engineer, Israel
Keren is a senior software engineer with over a decade of experience in the industry. She holds an M.Sc. in Computer Science and is passionate about React and learning new technologies. Keren volunteers as a program manager at Baot, a community that supports women in R&D in their professional growth. She instructs and inspires developers to write blogs in her tech blogging workshops. Keren has experience as a dev community leader and a co-organizer of meetups and events. And in her not-so-spare time, she studies psychology. Her hobbies include drawing, photography, and singing.
Catalin Pit
Catalin Pit
Software developer building on the web with TypeScript, React, Node.js, and more. Writer, YouTuber, and lifelong learner who enjoys sharing knowledge with others
Tiki Lobel
Tiki Lobel
Rapyd, Israel
Tiki Lobel is a fintech software developer who leads a team at Rapyd to liberate global commerce and connect the world’s disparate payment systems into a single integrated network. Her team focuses on core API development and Tiki’s ability to handle multiple projects simultaneously, and her understanding of complex dependencies within a larger system, make her an integral part of all product development in the company.
Joanna Otmianowska
Joanna Otmianowska
Famly, Poland
I'm a frontend developer specializing in JavaScript and React, with a passion for crafting seamless user experiences. Beyond coding, I'm a content creator who loves exploring topics like productivity, creativity, and balancing life as a tech professional and a parent. I empower women in tech through a thriving Facebook group and share insights via my newsletter and podcast.
Paul Serraino
Paul Serraino
Rollbar, USA
Senior software engineer at Rollbar with over 10 years of experience building web applications.
Michael Poteat
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.
Shaun Evening
Shaun Evening
Chromatic, Canada
I'm a seasoned software developer with a passion for creating engaging developer experiences. As a Developer Experience Engineer at Chromatic, I'm dedicated to improving integrations in the Storybook ecosystem, making it easier for developers to build high-quality UIs with confidence. In addition to my technical expertise, I'm an advocate for education and empowering developers to reach their full potential. When I'm not coding, you can find me jamming on my bass or spending quality time with my Great Danes, Zola and Noodles.
Jiri Lojda
Jiri Lojda
Kontent.ai, Czech Republic
Jiri is an Integrations Engineer at Kontent.ai. He loves to write type-safe, functional code using TypeScript and React as his primary tools. Always eager to learn and keep up with new technologies to enhance his skills and work, he wants to promote the advantages of this approach to project development in the community.
Jozef Sakáloš
Jozef Sakáloš
Bryntum, Slovakia
Saki is a seasoned software developer with decades of experience, specializing in JavaScript and modern web technologies. He has led the development of numerous web applications across various industries, blending deep technical knowledge with hands-on problem-solving. As a consultant and trainer, he supports teams in building scalable, high-quality solutions. His passion is sharing knowledge and promoting clean, maintainable code.
Nicolas Carlo
Nicolas Carlo
Freelance Web Developer, Canada
Fullstack TS dev. I like mending legacy code. I organize a few meetup groups in Montréal, including React MTL and Software Crafters.
Amber Shand
Amber Shand
She Bytes Back, UK
Amber is an international speaker and founder of She Bytes Back. She’s racked up 90+ talks in the last three years, loves making audiences laugh, and is usually the loudest cheerleader in the room (in the best possible way). When she’s not on stage, she’s building She Bytes Back, hosting events, and finding new ways to make confidence contagious.
Elina Denisova
Elina Denisova
PhysicsX, UK
Elina builds web apps, untangles state logic, and occasionally wins battles against heavy data waves coming from the backend. She enjoys crafting complex UIs for unusual users, cares about good architecture and mental health, and firmly believes that “just one more refactor” is a valid personality trait.
Walmyr
Walmyr
Talking About Testing online school, Barcelona
Hi, I'm Walmyr. I'm a software engineer who loves testing. I'm also a clean coder, blogger, YouTuber, podcaster, Cypress.io Ambassador, online instructor, mentor, speaker, an active member of the testing automation and JavaScript communities, and a fan of good music, tattoos, gardening, vegan 🌱 food, and skateboarding.
Saravanan K Nagarajan
Saravanan K Nagarajan
Rabobank, The Netherlands
Saravanan is an Architect working at Rabobank, Netherlands and one of the leads of the Growing Greener (Sustainability) community in the bank. He has more than 22 years of experience in diverse IT and business roles with different banks across the world. His passion is in Architecture, IT sustainability and Green Software and how we can generate more interest among the IT community in sustainable software. He has been nominated as a "Green Software Champion" by the Green Software Foundation.
Mukkund Sunjii
Mukkund Sunjii
ORTEC, Netherlands
Software Developer at ORTEC | Applied Math, Mechanical Graduate from TU Delft
Wesley Fuchter
Wesley Fuchter
Modus Create, Brazil
Wesley is a Senior Principal Engineer at Modus Create, with over 13 years of experience building cloud-native applications for web and mobile. Working as a tech leader he's spending most of his time working closely with engineering, product, and design to solve customers' business problems. His experience sits at the intersection of hands-on coding, innovation, and people management with a mix of experiences going from AWS, Java and TypeScript to startups, agile and lean practices.
Interests:
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.