JSNation US 2025

Addy Osmani is an engineering leader working on Google Chrome. He leads up Chrome's Developer Experience organization, helping reduce the friction for developers to build great user experiences.

Creator of Bun.

I own and make video tutorials teaching web development for Level Up Tutorials, releasing a new premium series every month. I also co-host Syntax.fm with Wes Bos. Syntax is a popular, light hearted web development podcast that teaches full stack topics while staying fun. I enjoy breaking also known as breakdancing, and have been dancing for over 15 years doing shows for professional NFL and NBA teams. I'm inspired by a hot cup of green tea, excellent music, and Shaw Bros. kung fu movies.

As a JavaScript performance enthusiast, and fine-grained reactivity super-fan, Ryan is obsessively passionate about the future of JavaScript frameworks. He is the creator of SolidJS, and a maintainer of Marko.

Julián Duque is a Developer and Educator, Community Leader, Co-Organizer of NodeConf and JSConf in Colombia, Node.js Collaborator Emeritus, and currently working as a Principal Developer Advocate at Heroku.

Daniel leads the Nuxt core team - previously CTO of SaaS startup and founder of a creative agency focusing on clarity of vision and message. His open-source work has a focus in the Vue.js and Nuxt ecosystems and he's involved in consultancy with companies around the world, particularly around JAMstack, serverless and software architecture. He's based in Scotland where he lives with his family and cat.

Liran Tal is a software developer, and a GitHub Star, world-recognized for his activism in open source communities and advancing web and Node.js security. He engages in security research through his work in the OpenJS Foundation and the Node.js ecosystem security working group, and further promotes open source supply chain security as an OWASP project lead. Liran is also a published author of Essential Node.js Security and O'Reilly's Serverless Security. At Snyk, he is leading the developer advocacy team and on a mission to empower developers with better dev-first security.

Tony is a bestselling Udemy and Pluralsight author, known for his online courses such as "JavaScript: Understanding the Weird Parts", in which he focuses on teaching web and computer science fundamentals. He has spent 25 years as a web application developer, database architect, and UX designer and continues to focus on creating a usable and accessible web. He holds a BS in computer science from Case Western Reserve University.

Alex is a Developer Relations engineer at VoidZero, a Nuxt.js Team member, Web Engineering Consultant, and open-source enthusiast. He creates tech-focused video content, co-hosts the DejaVue Podcast, speaks at conferences, and leads workshops to empower developers and advance the web ecosystem.

Mike Mikula is a seasoned entrepreneur and engineer whose journey began at 17 when he was featured in The Wall Street Journal for his pioneering work in 3D virtual worlds. Over the next decade, he built, scaled, and successfully exited his own software company, growing its user base to over one million. Today, Mike is at the forefront of AI innovation, channeling his passion and expertise into maximizing efficiency for development productivity.

Peter is a co-founder of DBOS, helping you build reliable software effortlessly. He loves databases and distributed systems a little too much, so he did a PhD in them, working with Matei Zaharia and Peter Bailis at Stanford.

TC39 delegate and ECMA rep, working on JavaScript feature proposals. Hemanth is a FOSS philosopher and MTS at PayPal Inc. Google Developer Expert for Web && Payments. DuckDuckGo community leader. Member of Node.js Foundation. Google Launchpad Accelerator mentor.

Ayodele is a Developer Relations engineer and a solution architect. Ayodele is passionate about developer education and product adoption. He's passionate about learning, building, and teaching web technologies, and tools that can help developers succeed in their role.

Marco is a Senior Security Engineer at HeroDevs. Active contributor, releaser, and member of the Node.js Technical Steering Committee, he is a renowned international speaker and a Microsoft MVP. Marco is actively involved in many projects within the Node.js ecosystem and also serves as a delegate in TC39.

Will is dedicated to crafting exceptional developer experiences, that help us increase our understanding, creativity, and flow. Throughout his career, he's shared expertise building developer tools, organized meetups, and helped cultivate thriving technical communities. Now at North Developer, he leads the effort to elevate the developer experience of their APIs and payments platform, through clear documentation, practical examples, and by working with the developer community to solve their challenges.

Daniel Afonso is a Senior Developer Advocate at PagerDuty, SolidJS DX team member, Instructor at Egghead.io, and Author of State Management with React Query. Daniel has a full-stack background, having worked with different languages and frameworks on various projects from IoT to Fraud Detection. He is passionate about learning and teaching and has spoken at multiple conferences around the world about topics he loves. In his free time, when he's not learning new technologies or writing about them, he's probably reading comics or watching superhero movies and shows.

Matheus is a Staff Front-End Engineer at Medallia, building their surveys platform and helping them shape the customer experience market with React, and a Google Developer Expert in Web Performance. His areas of interest include React and its ecosystem, JS and compile-to-JS languages, DX, and perceived performance optimization. Aside from public speaking about these, he also volunteers at TechLabs, teaching front-end development.

My background includes 10 years experience in Web development and currently venturing into Machine Learning, I am deeply passionate about empowering and inspiring others, which is why I proudly serve as a Women Techmaker Ambassador, dedicated to sharing my knowledge and experiences with the community and fostering diversity in the tech industry.

Iwo Plaza is a software engineer & artist, trying to incorporate art into every project he gets his hands on. He's passionate about graphics programming and softening the learning curve for future developers trying to get into it. Author of TypeGPU and numerous interactive examples and games built using WebGPU for Web and React Native. His combined experience with C++ game engines and TypeScript's type system allow him to lead the project in a unique direction.

Raihan Nismara is an experienced front-end web developer from Indonesia who is passionate about crafting memorable experiences through apps and sharing his knowledge, and actively contributes to the tech community through his podcast, volunteering, and speaking engagements.

A passionate web aficionado with over a decade of experience, I've been involved in developing accessible web applications that have reached millions of people.

Joana is a product engineer specialised in bringing groundbreaking projects to fruition with a non-ending curiosity. She has a strong passion for unravelling through the numerous challenges that come up everyday in the life of a dynamic product developer. Her will to share knowledge is only matched by her will to keep growing and learning.

Faris Aziz is a Staff Frontend Engineer specializing in React, Next.js, monetization systems, and resilient web architecture. He's led teams in early-stage startups and scaling companies, built career ladders from scratch, and shipped systems used by millions. His work spans greenfield builds and legacy refactors across Fintech, SaaS, Fitness, and Connected TV, with companies like Smallpdf, Fiit, Discovery, GCN, and Navro. He focuses on building performant, user-centric applications with solid observability and maintainability. Faris co-organizes ZurichJS, contributes to tools like Raycast, and spends time contemplating life's great questions, like why the build works on his machine but nowhere else.

I'm a Tech Lead working mainly with Node.js, React and AWS. I solve problems, sometimes by writing code, other times by talking to people.

Noam Zingboim is a seasoned software engineer specializing in Node.js, JavaScript, and system design for scalable backend services. With experience ranging from architecting new products to maintaining critical systems, he focuses on building maintainable, reliable, and high-performance solutions.

Full-stack engineer and tech lead with 10+ years of experience building high-performance web applications. Currently focused on Astro, React, and AI-powered systems. Passionate about web performance, developer tooling, and helping small businesses succeed through modern JavaScript frameworks.

CEO @Devmy, DevRel Expert @Codemotion, Google Developer Expert (GDE), Microsoft MVP, Google Certified Developer, LEGO Serious Play Facilitator, Projects Manager, Software Engineer, Speaker/Evangelist/Trainer, AWS UG Lead Francesco is a Google Developer Expert, Google Certified Developer, Microsoft MVP ed AWS UG Leader and an accomplished programmer with several years of experience in enterprise programming , high skilled in web development (frontend and backend) and in team project management. I’ve worked for a long time as a employee and then as a freelancer, but nowadays I has my own company: Devmy – Software Factory (former Acadevmy), founded with my friend Andrea. He was also Content Manager and DevRel of Codemotion, the largest tech community in Europe with more than 200,000 developers, as well as the largest IT conference in Italy and one of the most important in Europe. I love reading comics (strictly Batman!), playing the drums, riding a motorbike, playing padel and spending a lot of time with his beloved family.

Ryan Feigenbaum is a Dev Advocate at GrowthBook, helping teams build scalable feature flagging and experimentation systems. A JavaScript enthusiast with a love for performance and developer tooling, they’re passionate about making experimentation seamless for engineers. When not deep in flags and rollouts, they’re probably sipping a bourbon, playing chess, and having a spirited disagreement with their dog, Mel.

Kritiketan (aka Kittu) is a Managing Consultant at Shine Solutions, and have been building consumer facing applications for a decade. He is passionate about knowledge sharing, developer experience and web development. He believes technology should simplify lives and make them better. He is getting closer to finding the world's best sandwich.

Sia Karamalegos is a freelance web developer and performance engineer. She's also an international conference speaker, writer, and Google Developer Expert in Web Technologies. She organizes the Eleventy Meetup and co-organizes the PerformanceObserver meetup.

A charismatic Lead Software Engineer on Pepr at Defense Unicorns is an architect and engineer focused on cloud native and hybrid cloud environments focused on solving problems of scale, latency, reliability and secure software delivery. Lover of coffee and improving the open source community.

Karen Li is a concert pianist turned elementary school teacher turned software engineer. She is currently a software engineer at GitHub's npm team. Aside from engineering work, Karen blends education and technology by sharing her experience with the community. Her motto, "I invest in brains" captures her journey from teaching to tech empowerment.

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!

Allison McMillan is a fractional VP of Engineering and Leadership Consultant with over 25 years of design and facilitation experience for gatherings, covering everything from meetings and strategy planning sessions to offsites and conferences. She’s previously held leadership roles at QuotaPath, DEV, and GitHub. Allison has worn many hats in multiple industries as a community builder, managing director, and software engineer. Allison started a podcast about being a parent in tech, Parent Driven Development, and is an internationally recognized keynote speaker. She is very involved in the Ruby community as a former board director and President of Ruby Central. You can find more writing, speaking, and consulting information on her website: www.allisonmcmillan.com

ikerim Belispayeva is a Senior Analyst at Memorial Healthcare System, where she leads data-driven initiatives to improve hospital billing accuracy, detect improper payments, and modernize revenue cycle management. With a Master’s in Data Analytics and a strong background in SQL, Python, and EHR systems like EPIC, she works at the intersection of data science, healthcare finance, and regulatory compliance. Aikerim brings a unique perspective to the tech world — blending deep industry expertise with hands-on analytics to advocate for smarter, more user-centric data tools. She is also a recognized speaker and award-winning advocate for using data to drive impact in public health systems.