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!

Cat Johnson
Khan Academy, USA
I am a Senior Frontend Engineer at Khan Academy and I’ve been working in the industry for over 6 years. During my day job I work mostly on React web components and focus on Accessible Technology. On my off hours I love talking about how to create more accessible and inclusive web applications and hosting a podcast discussing new technology creating positive social impact in our world today. I firmly believe technology can be used to create a more inclusive and equitable world as long as we keep it in check.

Vivek Vidyasagaran
Synthesis School, USA
Vivek is a game developer and software engineer. He graduated with a Master’s in Entertainment Technology and has been designing and building kids’ educational games ever since. He is driven by a belief that games are the best way to make kids fall in love with learning.

Nikhil Chandrappa
Yugabyte, USA
Nikhil is a Software Engineer at Yugabyte. He is leading the efforts on YugabyteDB integrations with open source developer tools like GraphQL, Spring Data, R2DBC, and Kubernetes. He also works with the developer community on the adoption of Distributed SQL databases in cloud native applications. He has presented at major developer conferences, including Spring One Platform, PostgreSQL Conference, and Distributed SQL Conference. He is originally from Mysore, India, and has a master’s degree in Computer Engineering from Syracuse University.

Dipanshu Gupta
Red Hat, India
I am a Software Engineer at Red Hat, specializing in front-end development for cloud-native applications. My work focuses on building intuitive and performant user interfaces for OpenShift AI and other open-source projects. I am passionate about using React and related technologies to create seamless user experiences that empower developers and the community.

Victor Cordova
Travelperk, Spain
I'm a Software engineer obsessed with solving people's problems through easy to change and easy to test software. I'm in love with the web platform so I specialize in web technologies such as JavaScript, React, CSS, HTML, and Node.js.
I've designed and implemented web applications in small and large organizations for clients on 4 continents. I'm currently working on making the ultimate flight booking experience for companies at TravelPerk.
I also blog about software engineering and web development on my personal website victorandcode.com, https://dev.to/victorandcode and hackernoon.com/u/vcordova.

Szymon Chmal
Callstack, Tech Lead, Poland
Szymon is a passionate React developer and member of the Callstack Incubator, currently focused on building next-generation tooling for React Native developers. With extensive experience spanning React, Next.js, Astro, Angular, and Node.js, Szymon is dedicated to exploring cutting-edge technologies and improving developer workflows.
A seasoned public speaker, Szymon has delivered over 24 talks on web performance and accessibility, making complex topics accessible and engaging. As the founder of Google Developer Groups Toruń, Szymon is committed to knowledge sharing, mentoring, and advancing the web community.
Recognized as a Microsoft MVP in web development, Szymon combines deep technical expertise with a passion for community building and innovation.

Jason Green
Threads Styling, UK
Jason’s passion for the digital world has taken him across the entire spectrum of the creative process, from conceptualization to deployment. Jason is now Director of Technology at Threads Styling, building a platform to empower personal shoppers and power the future of chat commerce.

James Haworth Wheatman
Theodo UK, UK
James is a Tech Lead on full-stack web and mobile applications at Theodo UK, a Lean Software Consultancy in London. As a consultant, he has built and deployed apps to production and led teams within many sectors, from green tech, to insurance, to finance, working within start-up teams building a business from the ground up or within multinational organisations.
James is currently thinking about Tech Quality, Training, and Leadership within the Software Engineering world and plays the keyboard in a work band.

Nick Marino
ReadySet, USA
Nick Marino is a backend developer at ReadySet, where he helps build the Rust code that powers ReadySet’s caching systems. In his past career, he’s had extensive experience writing Erlang code, and has worked on database systems at Basho and Datometry, as well as a variety of telecom systems at other companies. He lives in Rochester, NY with his spouse Tasha and his dog Astrid, and he enjoys spending his spare time reading, playing cello, and practicing aerial arts at the local circus school.

Cristhian Motoche
Stack Builders, Ecuador
I'm Cristhian Motoche, a software developer at Stack Builders. I have worked for about 6 years on different projects and I have faced different challenges using many programming languages such as: Haskell, Python, TypeScript, R, Elm, PowerQuery, etc. I love to learn new things and review the potential of programming languages. I’m very into functional programming and type-driven development. Apart from that, I like to develop other skills like drawing, playing the guitar, learning Japanese, etc.

Omar Diop
Learnn, Italy
Passionate Software Engineer with a strong background in technology and a desire to constantly learn and grow and share.
Omar has always been fascinated by technology since a young age and aspired to turn his passion for programming into a career.
At the same time, he has a strong passion for marketing, funnel optimization, product development, and business.
He dedicates a portion of his time experimenting with new solutions in these areas on projects that interest him.

Faris Aziz
Smallpdf, Switzerland
Faris Aziz is an experienced engineer, international conference speaker, and workshop instructor specializing in React, Next.js, web architecture, and resilient system design. He has a deep passion for startups, having worked in early-stage companies ranging from founding teams to organizations scaling from 1 to 100 people. His expertise spans engineering leadership, building career ladders from scratch, and managing teams of over 10 engineers.
As a front-end subject matter expert, Faris has contributed to creating systems used by millions of users worldwide. His work has ranged from building greenfield projects from the ground up to maintaining and scaling decade-old products. His experience covers industries like Connected TV, Fintech, SaaS, and Fitness, working with companies such as Smallpdf, Fiit, Discovery, GCN, Eurosport, and Navro (formerly Paytrix).
Faris’s specialization lies in building user-centric, performant, and maintainable applications. He has a particular interest in observability and monitoring, ensuring that systems are not only robust but also easy to troubleshoot and optimize. His passion extends to sharing knowledge, organizing the Zurich.js meetup in Switzerland, and speaking at international conferences about web development, engineering leadership, and creating scalable systems.
In his free time, Faris enjoys contributing to web development tools like Raycast and spending time contemplating life’s great questions, like why the build works on his machine but nowhere else.

Omry Nachman
Codux, Israel
Omry Nachman, an accomplished technology leader, currently CTO at Codux, a Wix company. With over 20 years of experience in frontend and backend development, Omry has held CTO positions in multiple startups and founded the Wix Academy. His passion for React, TypeScript, and the web drives his innovative approach to web development.

Katarzyna Dusza
Spotify, UK
Katarzyna is a Senior Software Engineer with over 9 years of experience passionate about software architecture, building high-quality solutions and solving exciting challenges. She has worked for various organisations across different domains including e-commerce, health care, fintech and B2B. As a former Kubernetes trainer, conference speaker and blogger, she truly believes that knowledge sharing helps us become stronger professionals. In her free time, she paints and plays board games. Currently, she is working at Spotify on the SDK that powers Spotify player on the Web.

Dmitrii Ivashchenko
MY.GAMES, Serbia
Dmitrii is a software engineer with over ten years of experience developing mobile games, frontend and backend systems. He is a member of the International Game Developer Association, Ukie Video Games Ambassador, and Academy of Interactive Arts & Sciences (AIAS) and an author of articles on Medium and HackerNoon. As a judge, he has participated in evaluating projects for CODiE Awards and Globee Awards 2023, as well as in numerous hackathons. Progressed from junior full-stack developer to Lead Software Engineer at MY.GAMES, serving over 1 billion users globally. Expertly guiding game developers and backend engineers to craft profitable and engaging games.