React Summit 2025

Miguel Ángel Durán (aka midudev) is a software engineer, content creator, and educator focused on JavaScript and web technologies. He runs one of the largest Spanish-speaking developer communities, sharing knowledge through live coding sessions, tutorials, and challenges. He's also the organizer of JSConf Spain and an advocate for accessible and modern web development.

Creator of Bun.

Steve is the Co-founder and CEO of Builder.io and the creator of the Mitosis open-source project.

Tanner Linsley is an entrepreneur and open source creator who loves React and JavaScript. He has built and still maintain several well-known open source libraries like React Query, React Table, React Virtual, React Form, React Charts, React Static, and even Chart.js He co-founded Nozzle.io 6 years ago and is currently helping it grow as VP of UI and UX. When not programming, Tanner spends his free time traveling, recording music, film-making, and vacationing with his wife and children.

Aiden Bai is a frontend performance engineer with a passion for efficient developer tools. He's the creator of Million.js and React Scan, and is the resident performance nerd at Dimension.

Dominik is a Frontend Engineer, React-Query maintainer working at Sentry, who blogs about all things React and TypeScript (https://tkdodo.eu/blog/).

Creator of Expo Router, manager of dev tools and the web platform at Expo.

Lydia Hallie is a software engineer, consultant, and educator with expertise in JavaScript, ECMAScript standards, and modern web development frameworks. She specializes in performance optimization, scalable architecture, and breaking down complex programming concepts into clear, visual explanations. Through a combination of hands-on engineering and in-depth technical educational content, she helps developers master advanced concepts.

Seasoned software engineer, educator, and a GitHub star passionate about technical education. I enjoy making learning simple through hands-on teaching and a project-based approach. Five years ago, I started the JavaScript Mastery YouTube channel, which became one of the largest technical education YouTube channels for intermediate to advanced developers in the JavaScript ecosystem.

Tejas Kumar is an international keynote speaker, best selling author, and host of the developer-loved ConTejas Code podcast with an engineering background spanning 23 years, from design to frontend to backend to devops. Today, Tejas shares talks at large with developer communities worldwide, equipping them to do their best work.

Mark Erikson is a Senior Front-End Engineer at Replay, and lives in southwest Ohio, USA. Mark is a Redux maintainer, creator of Redux Toolkit, and general keeper of the Redux docs. He tweets at @acemarke, and blogs at https://blog.isquaredsoftware.com. He spends much of his time answering questions about React and Redux anywhere there's a comment box on the internet, and usually hangs out in the Reactiflux chat channels.

Shruti Kapoor is an accomplished Staff Engineer with a strong focus on front-end development. Currently employed at Slack, she brings extensive experience to the table from her time at PayPal. With a passion for DevJokes, Shruti has carved out a unique niche in the tech industry, bringing a refreshing sense of humor to her work. In addition to her professional accomplishments, Shruti is also an experienced educator, having taught courses in JavaScript, React, GraphQL, and front-end development. As an egghead instructor, she is dedicated to sharing her knowledge and expertise with others, helping to build the next generation of tech leaders.

Creator of the State of JS survey.

Medhat is a Senior Software Engineer at Miro and a Google Developer Expert in Web Performance with extended experience in several web technologies, through his writings on his blog, online video courses, and talks he likes to share learnings, tips to write cleaner/reusable code, and useful DevTools, also he likes to speak about web performance and how to ship a fast and accessible web application to everyone

Swizec is a software engineer, author, and conference speaker. He's published books on modern web technologies, data visualization, and productivity, and has trained engineering teams at companies big and small. He’s on a mission to distill 20 years of tacit experience into actionable steps.

Xuan is a software architect on the Lynx family of technologies, where he can dream of making interfaces better for more users, more developers, and more machines. Before joining ByteDance, he worked on React Core ("React Forget"), React Native, Hermes and Reason during his time at Meta.

CTO and Founder at Callstack. Developer Experience is my passion. In the past, I worked on “react-native link”, “auto-linking” and the CLI. When not coding, I am probably on a race track!

Luca Mezzalira is principal solutions architect at AWS, an international speaker, and an author. Over the past 20 years, he’s mastered software architectures from frontend to the cloud, providing the right solution for the context of the job at hand. OReillyMedia Author

Elio Struyf has led a remarkable career as an award-winning Engineering Lead, a trusted information technology thought-leader, and an energizing public speaker with over a decade of experience facilitating events and conferences across Europe. Over his career, he has been invited to numerous cities including Barcelona, London, Paris, and Stockholm, where he has spoken on thought-provoking, development-related topics on Microsoft 365, SharePoint, and Azure DevOps. His extensive knowledge has seen him recognized as a Microsoft MVP ten times, three times as a GitHub Star, a Google Developer Experts, and he has been recognized as a SharePoint/Microsoft 365 Top 25 Influencer four times. Today, along with acting as VP of BIWUG (Belgian Information Worker User Group), Elio works as an independent contractor for his own consulting company, Struyf Consulting. Elio remains a sought-after speaker at various Microsoft-related community events and conferences, where he inspires, educates, and creates authentic connections with technology professionals and developers across Europe.

JJ Kasper has spent the last six years working on Next.js at Vercel, working to build a better web. Passionate about open source and improving developer and user experiences, JJ enjoys building tools that make shipping great apps easier and faster. He's originally from Kansas but currently loving living in the bay area surrounded by amazing builders.

Innocencia Ndembera is the Co-Founder and Chief Operating Officer of Chip In Limited, a forward-thinking software engineering company committed to revolutionizing agriculture and financial inclusion in Malawi. With a passion for using technology to drive social impact, she leads initiatives like Sunga, a financial platform tailored for underserved communities, and Chip In Agriculture, a project that connects farmers with buyers for sustainable economic growth. As an advocate for women in tech, Innocencia also founded Women in Tech Malawi and serves as a Women Techmakers Ambassador, championing diversity and inclusion in the tech industry.

Ankita is an Creator Educator and Youtuber and creates educational content that helps developers level up in their careers such as her creates digital products such as her E-book on taking control of your first 90 days as an Engineering Leader, her courses on Next.js or Engineering Leadership. She has Taught 10,000+ students online. In the past, she has worked as a Senior Technical Leader, Solution Architect and Tech Lead. She has architected and scaled many web and mobile apps for clients using React, GraphQL, React Native and Next.js and Spent over 10+ years in Tech at the intersection of Front-end and Leadership.

Krasimir Tsonev is a coder with over 20 years of experience in web development. Author of books on JavaScript he works at Antidote.me where he helps people reaching clinical trials. Loves React and its ecosystem.

Working in the Developer Experience team at Cloudflare, Harshil enjoys sharing his learnings with the community. A JavaScript developer, open-source contributor, and a low-code enthusiast, Harshil loves experimenting with tech and building fun projects.

Ramona is a Developer Advocate at Auth0. With a background in software engineering and quality assurance, she bridges the gap between testers and developers and fosters trust in identity topics. Ramona is also a Google Developer Expert in Web Technologies, a Women Techmaker, and a Cypress Ambassador.

Naman works on design systems at Meta, maintains StyleX and is a contributor to React Strict DOM. Previously, he has dabbled in film-making in India, and spent a year working for a start-up in Spain.

Andre is a passionate developer from Germany who loves building for the web. Based in the Bay Area, he is a Senior Developer Advocate at Neon and the author of Full Stack Web Development with Remix. He was previously a Senior Software Engineer at LinkedIn and holds master’s degrees in Information Systems and Computer Science. In his free time, he brings the community together through All Things Web events in San Francisco.

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.

Neciu Dan is the technical co-founder and tech lead of CareerOS, where he spearheads the development, maintenance, and scaling of the main application. Bringing over 12 years of engineering expertise to the table, Dan has a proven track record in the tech industry, having previously served as a Senior Product Engineer at the New York E-commerce brand, AdoreMe, and as a Senior Software Engineer at the food delivery company, Glovo.

Edoardo has a strong software developer and team leader background, working on various projects and platforms. He is passionate about creating and sharing content that educates and inspires other developers, such as tech talks, videos, podcasts, conferences, and more. He enjoys connecting with the developer community and promoting the benefits of open source software.

Kræn is a Senior Software Engineer at MongoDB contributing primarily to Compass, MongoDB Shell, Realm JS and its related packages. He has build and maintained multiple React apps, including the Realm Cloud (replaced by MongoDB Atlas post acquisition) and Realm Studio (an Electron app to browse the Realm database). He lives 30 minutes west of Copenhagen, with his wife and their two twin girls and 2-yo baby girl.

Marko is a software engineer and data visualization enthusiast specializing in geospatial technologies. Currently a Founding Engineer at Fused, he builds interactive geospatial applications using React and deck.gl. Previously, he was a Senior Software Engineer at Foursquare and a Tech Speaker at Mozilla. As the Director of Armada JS, Serbia’s largest full-stack JavaScript conference, Marko is dedicated to community building and knowledge sharing. He holds a Master’s degree in Computer Science and is pursuing a PhD in data visualization.

Hi, I'm Shayan, formerly the Founding Engineer of Zenduty and a critical thinker who loves leveraging the power of code to solve real-world issues. As someone who enjoys building nifty little tools and snippets that make my (and other people's) lives easier, I'm always thinking about my next big project and how much simpler it'll make my day. I've served as CTO of an ed-tech venture and have led several teams over the years to build scalable production-grade React and React Native products. I also enjoy actively participating in UX decisions and aim to build products that are intuitively effortless to use.

A dad, a drummer and JavaScript lover! Matt has a background in animation, games dev and frontend web dev. Passionate about all things frontend. Super passionate about working in teams and helping engineers grow. Matt has lead teams at Blake, Domain and now currently at Atlassian.

Darko is a webdev nerd who loves the web platform. He is passionate about technical challenges, open-source software, and Linux. Since 2017, he has been active in the Macedonian IT community, organizing events, conferences, lectures, mentorships, and digital content creation. Currently, he's a part of the DevRel team at SuperTokens.

Known as TiKevin83 online, Travis McGeehan is a Senior Software Engineer at GFS in West Michigan specializing in frontend optimization during the day and with a knack for video archival techniques from years spent organizing the TASVideos and TASBot communities and making retro game TASes.

Rahul is the CEO and Co-Founder of ImageKit.io, a leading SaaS platform that helps developers optimize, transform and deliver high-quality images and videos on the web.

Luis Oliveira is a Staff Engineer at xgeeks with over a decade of experience in developing marketplaces, web applications, and APIs. Passionate about open source, he has contributed to projects like React and Styled Components. Luis is dedicated to driving innovation and collaboration through technology, having worked with leading brands such as Farfetch and Chemondis.

I am a freelance software engineer, instructor, and public speaker with over half a decade of hands-on experience in the entire software development process.

I am a Computer Scientist from Salt Lake City with a passion for accessibility, mobile-first design, globalization, and architecture. My main tools are React, Web Components, and Node. My favorite things in life are spending time with people, learning new perspectives, and writing software.

Lead Frontend Developer at Sber, 10 years of making online banking web-apps and contributing to internal frontend community.

Mateusz is a Principal Software Developer at Workflow Builder with seven years of experience in React. He specializes in building data visualization solutions and interactive diagramming interfaces. He combines technical expertise with a business focus to develop practical, high-impact applications.

Samhitha is a full-stack software engineer at BlackRock, currently spearheading the UI architecture for the second generation of a high-scale, data-intensive investment management application. She is a University of Southern California alumna with a Master’s degree in CS, where she was also a Graduate Teaching Assistant and a Webmaster. Passionate about youth education and empowering women in STEM, Samhitha advocates for these causes through panel discussions, coding workshops and teaching. She serves as a mentor and judge at various hackathons, helping young developers refine their skills, and is also a contributor to freeCodeCamp. Outside of work, she loves to paint and has been doing it for over 20 years now.

I'm Shubham, a Software Engineer at Headout who loves to experiment with different technologies and use them to create useful applications. I'm particularly fond of TypeScript, Web Performance, Frontend Tooling and I'm always ready to engage in a friendly debate on the topic of aliens' existence. As an engineer, I'm passionate about continuous learning and personal growth, and I always make sure to stay up-to-date with the latest developments in my field. Collaborating with my colleagues and learning from their expertise is something I enjoy. I'm always looking for ways to improve my own skills and contribute to the success of the team.

Kate is a Full Stack Developer and Engineering Mentor, obsessed with regular expressions, books, and web technologies. In her work, she mixes old with new, soft with hard, cats with dogs. When it’s not a disaster, it’s pure magic!

Ido Moshe is a software engineer with over a decade of experience building scalable web applications and developer tools. He currently works on charting libraries at AG Grid, focusing on clear, high-performance data visualization. He has led front-end architecture across diverse domains, with a focus on building modular UI systems, streamlining development workflows, and reducing complexity in evolving codebases. His work emphasizes maintainability, clarity, and thoughtful abstraction.

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.

Evangelia Mitsopoulou is a tech professional with over 15 years of experience. She is the founder of her own academy, where she mentors and guides aspiring front-end engineers, blending her expertise in software engineering, instructional design, and cognitive load theory. Previously, Evangelia worked remotely as a UI Software Engineer for Elastic and spent a decade in Zurich with companies like ETH, Google, EF, and several fintech startups. Her extensive experience spans the full JavaScript ecosystem, and she has a background in e-learning standards for the medical and healthcare sectors. In addition to running her academy, Evangelia advises and works as a fractional expert with startups, helping them navigate technical challenges and scale effectively.