Web Engineer. At different times he used different languages and directions, and in the last few years, he has focused on JS. Sergey is interested in developing CG applications, actively contributes to Webpack, loves rare tasks such as analysis and work with AST, self-written bundlers, etc.

Frontend researcher, speaker, web standards evangelist, open source enthusiast. Author of CSSTree, discovery.js, basis.js and others, maintainer of CSSO.

GraphQL rockstar, developer of Internet products, OSS maintainer. Since 2001 Pavel's main specialization is web technologies. He has extensive practical knowledge on backend/frontend development, administration, and architecture. Since the end of 2015, Pavel's main focus is on isomorphic applications. In summer 2016 he began the development of graphql-compose (GraphQL schema generator) in open source.

Actively propagating web application safety. Love testing and works at Cypress.io for the second time. Material-UI core team member. Active (or not really) open source contributor.

Love chihuahua, volleyball, OCaml, and cooking.

Thomas Steiner is a Developer Relations Engineer at Google, focused on the Web and Project Fugu. He's an alum of University of Lyon (Postdoc), Polytechnic University of Barcelona (Ph.D.), and University of Karlsruhe (MA). Thomas blogs at http://blog.tomayac.com and tweets as @tomayac.

Michael Hladky Hladky IT Consulting

Michael Hladky is a Google Developer Expert (GDE), Microsoft MVP, trainer, and consultant with a focus on Angular and RxJS. For years he has helped companies and developers to set up scalable architectures and performant processes enabling teams to keep up with the state of the art development. A vibrant member of the tech community, he organizes multiple community events and workshops each year to give back.

Tech Lead in Disco. In 2019 he became the main developer of the largest extension (15M MAU) for downloading videos from YouTube. Made over 20 extensions. Author of the most popular library for working with the Telegram API — @mtproto/core.

12 years in web development, 8 years has been developing corporate web applications, including decision-making systems, production process control, and microbiological research. Open source contributor, consultant, and developer of developer tools. Russian Ember.js community organizer. Loves JavaScript, DOM API, AST.

Frontend developer with four years of experience, currently working in video streaming. Actively involved in OSS: has his own project, leads ts-essentials. Writes articles about TypeScript and players.

Lives in St. Petersburg. Created web applications and games at Tinkoff. Now works at VK. Helps to organize meetings in St. Petersburg and JSNation conference in Amsterdam. He came to programming because he wanted to develop games and gradually began to do this at work.

Software engineer at Aviasales, working on the web platform to support product teams' sustainability and improve the quality of frontend engineer's life.

Frontend developer at Facebook. Started from an intern at HeadHunter developers school and now he has been teaching for over 5 years in this school. Nikita has been working at 5 different teams during all career. A member of the architecture team for the last year. The security of user data, the architecture, and the infrastructure of the project are the most important things at his work.

Programmer with 10 years of software development experience and a CTO at CSSSR, an Open Source enthusiast, a core-team member of RacketScript language. Co-author of Remote Talk and Callback Hell podcasts, a co-organizer of a local developers community in Kursk, and co-organizer of Meetup Universe metacommunity.

Frontend JS performance enthusiast and long time super fan of fine grained reactive programming. Member of Marko core team. Author of SolidJS UI library.

26 years in programming, researcher, lecturer, open source enthusiast, CTO at Salucyber, Chief architect at Metarhia technology stack. Author of 200 free video lectures, community organizer: NodeUA, Metaeducation, HowProgrammingWorks, speaker at over 55 conferences.

Frontend developer since 2013. Semyon managed to work in a startup, state projects (Platon, Rosguard, Roscosmos). Worked in Rambler, developed a useful program for HR. Now he does Yandex.Zen.

Software developer with 10 years experience and frontend YouTube channel "IT Siniak". He studies React sources and share his progress. Loves to use the dependency inversion pattern. And always has ideas on how to improve/speed up your project!

6 years in frontend, Angular, Typescript, RxJS, recently moving education to the web.