#performance

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Building swift yet functional apps should be what all developers aspire to. And since you do, we put together a collection of talks and tutorials on application performance and made them available for free. Whether your challenge is on the front-end or the back-end, these talks and workshops will give your great tips and inspire you to try new solutions.
Emma Bostian
Emma Bostian
Spotify, Sweden
Talk: Building High-Performing Cross-Cultural Teams
Software Engineer @Spotify @ladybugpodcast
Nikhil Sharma
Nikhil Sharma
Postman, India
Talk: Wait, React Is Multi-Threaded?
Software Engineer at Postman. I build scalable and reactive web apps with React and some caffeine! OSS contributor and maintainer @ OSSN Blogger @Medium Speaker
Jarred Sumner
Jarred Sumner
Oven, USA
Talk: How Bun Makes Building React Apps Simpler & Faster
Creator of Bun.
Mark Erikson
Mark Erikson
Replay.io, USA
Talk: A Guide to React Rendering Behavior
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.
Addy Osmani
Addy Osmani
Google, USA
Talk: The Future of Performance Tooling
Addy Osmani is an Engineering Manager working on Google Chrome. He leads up a Web Performance and tools team focused on making the web fast. His teams contribute to projects like Core Web Vitals, Lighthouse, PageSpeed Insights, Chrome User Experience Report and others.
Will Eastcott
Will Eastcott
PlayCanvas, UK
Talk: Optimizing HTML5 Games: 10 Years of Learnings
Will Eastcott is CEO and co-founder of PlayCanvas, an open source, browser-based game engine. Will is a 25 year veteran of the games industry, with credits in Call of Duty, Max Payne, DJ Hero and many more. Will is a vocal advocate for open source and open standards and is currently obsessed with taking the web into the third dimension.
Cristobal Chao
Cristobal Chao
Torii, USA
Talk: Accelerate Innovation
Cristobal Chao is a software engineer, UX specialist and founder of Torii Studio, a studio that helps small to large companies implement front-end processes and systems that are easier to scale efficiently while building beautiful UI/UX products. Prior to forming Torii Studio, Mr. Chao worked as a Software Engineer in companies like Google and Oracle. Also, he worked as the first software engineer for Hattery Labs, a front-end consultancy acquired by Google in 2013. At Google, he worked as part of the Material Design team building the first two versions of Material Design, as well as evangelizing the systems across Google Search, Maps and Google for Work.
Emily Kauffman
Emily Kauffman
Harvie, USA
Talk: Remixing a Symfony
Emily is a lead software engineer based out of Pittsburgh, USA. She's a lifelong learner, adjunct professor, and IoT enthusiast. Emily has a tech background in healthcare, robotics, and more recently, bringing local food to the masses at Harvie. In her spare time, you can find Emily working on her web agency startup, scuba diving, or trying her hand at landscape photography.
Marie Drake
Marie Drake
Grafana Labs, UK
Talk: A Medley of Frontend and Backend Performance Testing
Marie is currently a Developer Advocate at k6.io, a Grafana Labs company. In the past, she has been an Engineering Manager, a Principal Engineer and a Test Consultant. She is also a tech blogger at testingwithmarie.com, an accessibility advocate and an online course instructor at Ministry of Testing and Test Automation University.
Aashima Ahuja
Aashima Ahuja
Freelance Consultant, Netherlands
Talk: Zero Bundle Size Server Components
I am a frontend engineer working. I am a JS enthusiast. I love talking about the Web and exploring new technologies. I believe knowledge grows with sharing , so I love to spread my knowledge about frontend.
Shivay Lamba
Shivay Lamba
Meilisearch, India
Talk: Server-Side Rendering Using WebAssembly
Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development. He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and has also been a MLH Fellow. He is actively involved in community work as well. He is a TensorflowJS SIG member, Mentor in OpenMined and CNCF Service Mesh Community, SODA Foundation and has given talks at various conferences like Github Satellite, Voice Global, Fossasia Tech Summit, TensorflowJS Show & Tell.
Vojtech Miksu
Vojtech Miksu
Uber, USA
Talk: Ladle: The Story About Modules and Performance
Currently on the UI Platform team at Uber. Focused on design systems (baseweb.design), open source (multiple popular react libraries as react-movable or react-portal), CSS in JS and great user/developer experiences. Previously building product at Cloudflare.
Eric Burel
Eric Burel
LBKE, France
Talk: Treat your users right with Segmented Rendering
French entrepreneur and developer, founder of LBKE. I contribute to the State of JS survey and maintain the framework that powers it, Vulcan. I teach Next.js at Human Coders.
Michał Pierzchała
Michał Pierzchała
Callstack, Poland
Talk: Automated Performance Regression Testing with Reassure
Head of Technology at Callstack. Passionate about building mobile and web experiences, high quality JS tooling and Open Source. Core React Native Community & Jest contributor. Space exploration enthusiast.
Luca Casonato
Luca Casonato
Deno, Netherlands
Talk: Instant websites using Fresh and Deno on the Edge
I'm a developer and open source enthusiast. I like Rust, Go, TypeScript, and fast websites. I work at the Deno company, building Deno and Deno Deploy, and serving as a delegate at TC39.
Obinna Ekwuno
Obinna Ekwuno
Cloudflare, UK
Talk: Building full-stack applications on the Edge
Obinna Ekwuno is a human before anything else. He mostly works on the web and loves to teach concepts in JavaScript while advocating for web accessibility. He does this through speaking, live streams, and technical articles. Currently, he works as a Developer Advocate at Cloudflare and before that he worked as a Software Engineer at Gatsby, where he worked on Gatsby Open source.
Rafael Silva
Rafael Silva
NearForm, Brazil
Talk: The Clinic.js Workshop
Rafael is an active member of the global open source community. He’s a Node.js Core member, Fastify core member, Clinic.js core member, and member of the Node.js Diagnostics Team. His experience in backend development involves developing projects with requirements to be low latency along with software and architecture optimization.
Michele Riva
Michele Riva
NearForm, Italy
Talk: High-performance Next.js
I'm a passionate and experienced software engineer, Google GDE, and Microsoft MVP working full-time on open-source software. I currently work as a Staff Engineer at NearForm while traveling the world to speak at international conferences. I am also developing Lyra, the next-generation full-text search engine written entirely in TypeScript. I am always up for speaking about software, philosophy, photography... or literally whatever comes to your mind!
Michele Riva
Michele Riva
NearForm, Italy
Talk: You don't want to Server-side Render your Next.js App
I'm a passionate and experienced software engineer, Google GDE, and Microsoft MVP working full-time on open-source software. I currently work as a Staff Engineer at NearForm while traveling the world to speak at international conferences. I am also developing Lyra, the next-generation full-text search engine written entirely in TypeScript. I am always up for speaking about software, philosophy, photography... or literally whatever comes to your mind!
Chinenye Onuegbu
Chinenye Onuegbu
Software Engineer, Germany
Talk: Performance is User Experience: Optimizing the Frontend for the Users
A software engineer focusing mostly on JavaScript and web technologies. You'll find me wherever web technologies are found!
Michael Hladky
Michael Hladky
Push-Based, Austria
Talk: High-Speed Web Applications: Beyond the Basics
Michael Hladky is a Google Developer Expert (GDE), Microsoft MVP, trainer, and consultant with a focus on Angular and RxJS. For years he has been helping companies and developers to set up scalable architectures and performant processes enabling teams to keep up with state-of-the-art development. A vibrant member of the tech community, he organizes multiple community events and workshops each year to give back.
Nadia Makarevich
Nadia Makarevich
Pyn, Australia
Talk: Let’s Talk about Re-renders
Nadia is a Frontend Architect, experienced coder and tech blogger. She loves debugging mysterious bugs, solving hard problems with simple solutions and writing articles, that make complicated advanced concepts easy to understand. She managed to escape from locked down Australia in the middle of the global pandemic and now enjoys the life of a digital nomad all over the world.
Lena Zhukova
Lena Zhukova
Wix, Ukraine
Talk: The Only Way to Eat an Elephant - Code Splitting With Server Side Rendering
Lena is a Frontend Developer and Ex Lawyer, she has a passion for fashion trends, frontend technologies and Kyiv balconies. In the last few years she worked on Wix Groups - a social network for communities within Wix Sites. She joined Wix Bookings in Amsterdam to Democratize the way people book services online.
Colby Fayock
Colby Fayock
Applitools, USA
Talk: Engaging Ecommerce with the Visual Web
Learning by doing is the best way to learn and it’s how Colby Fayock helps others learn about Javascript, React, and the static web. His work includes writing on freecodecamp.org, videos on YouTube, and courses on egghead.io as well as his first book 50 Projects for React & the Static Web.
Kasper Mol
Kasper Mol
Poki, Netherlands
Talk: Conversion to Play: The Art of Loading
Indie developer in his free time, writes code + does generally awesome web and gaming stuff @ Poki.
Omar Shehata
Omar Shehata
Snapchat, USA
Talk: What Can you Do with WebGPU?
Omar is a graphics programmer working on mapping software currently based in Ithaca, NY. He is the co-creator of a desktop game, Move or Die. He has published over a dozen flash games that have been played millions of times. He loves the the universal accessibility of creating things for the web and enjoys writing computer graphics tutorials to help others create awesome stuff for the web.
Oz Syed
Oz Syed
Sauce Labs, Canada
Talk: Detect and Avoid Common Performance and Memory Issues in Unity WebGL Builds
Oz is a Game Dev Evangelist at Backtrace, A Sauce Labs Company. He has over 15 years of experience in the game industry in various senior technical roles in gaming and software engineering. His major interests are emerging tech, machine learning and creating new tech products involving gaming or gamified applications.
Shivay Lamba
Shivay Lamba
Meilisearch, India
Talk: High Performance Node.js Powered by Rust and WebAssembly
Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development. He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and has also been a MLH Fellow. He is actively involved in community work as well. He is a TensorflowJS SIG member, Mentor in OpenMined and CNCF Service Mesh Community, SODA Foundation and has given talks at various conferences like Github Satellite, Voice Global, Fossasia Tech Summit, TensorflowJS Show & Tell.
Robert Hostlowsky
Robert Hostlowsky
Instana, Germany
Talk: Performance Monitoring of a Heterogeneous GraphQL Mesh App
Currently, Robert Hostlowsky is working as a developer, coach and systems engineer. He published an online video course about developing a full-stack GraphQL application online-course. He loves DevOps culture on modern cloud infrastructure, uses the latest state-of-the-art web technologies, and loves how it plays nicely together at minimum effort and cost. He loves web technologies. Feeling being a part of the developer community he is co-organizing the JSCraftcamp, Munich.
Ankita Masand
Ankita Masand
Treebo, India
Talk: GraphQL Performance and Monitoring
Ankita is an Associate Architect at Treebo. She likes writing technical blogs and makes it a point to explain convoluted technical jargon in simple and concise language.
Tamar Twena-Stern
Tamar Twena-Stern
XM Cyber, Israel
Talk: Effective Performance Testing to your Server with Autocannon
Tamar is a software developer , manager and architect. She has a decade of software engineering experience in various technologies: Server side, big data, mobile, web technologies, and security. She is currently focusing on Node.js, and has a deep knowledge of Node.js server architecture and Node.js performance optimisations.
Simon Zhong
Simon Zhong
Sentry, USA
Talk: Track Slowdowns and Crashes in your React apps
Simon Zhong is a Sales Engineer at Sentry with almost 10 years of experience in enterprise software. He attended the University of Edinburgh and is a graduate of University of California, Davis in Computer Science. He is an American born Chinese (ABC) who is a native English speaker with conversational proficiency in Cantonese.
Ruben Casas
Ruben Casas
Postman, UK
Talk: Micro-Frontends Performance and Centralised Data Caching
Software Engineer and Architect. Currently building Micro Frontends Frameworks At American Express. I enjoy exploring new technologies and sharing my experiences with others.
Michel Weststrate
Michel Weststrate
Meta, UK
Talk: Beyond Virtual Lists: How to Render 100K Items with 100s of Updates/sec in React
Open source fanatic, speaker and trainer. Author of MobX, MobX-State-Tree, Immer and a plethora of smaller packages. On a continuous quest to make programming as natural as possible. React, JavaScript and TypeScript fan. Working at Facebook on dev tooling for mobile developers.
Filip Rakowski
Filip Rakowski
Vue Storefront, Poland
Talk: How to Measure Performance Effectively?
Co-founder & CTO of Vue Storefront - biggest Open Source eCommerce frontend project, co-organizer of Wrocław Vue.js meetups, web perf geek since 2017, proud cat owner.
Mark Dalgleish
Mark Dalgleish
SEEK, Australia
Talk: Zero-runtime CSS-in-TypeScript with vanilla-extract
CSS Modules co-creator, Playroom, Braid, MelbJS. OSS / UI / design / tooling at @seek-oss
Max Stoiber
Max Stoiber
GraphCDN, Austria
Talk: How to cache GraphQL queries at the edge
JavaScript Engineer from Austria in love with React and Node. Previously he worked at GitHub, who acquired the startup he co-founded, Spectrum. He is well known for making styled-components, react-boilerplate, and a wide variety of other open source projects in the React ecosystem.
Ryan Carniato
Ryan Carniato
Netlify, USA
Talk: SolidJS - Reactive JSX
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.
Nikhil Chandrappa
Nikhil Chandrappa
Yugabyte, USA
Talk: Going from Zero to Building Multi-Region GraphQL Applications
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.
Nacho Anaya
Nacho Anaya
Checkly, Argentina
Talk: JAM Stack Deployment Platforms and Performance Comparison
I am Lead Open Source Engineer at @ChecklyHQ, Tech Trainer, and Speaker. I have been working, teaching and spreading JavaScript technologies for more than 10 years. Right now, I am mostly working with Vue.js and Node.js but I like to contribute to any kind of dev community or OSS project. When I am not coding or traveling, you can find me playing hockey in Buenos Aires.
Glen Maddern
Glen Maddern
Cloudflare, UK
Talk: The Rise of the Dynamic Edge
Co-creator fab.dev. Founder of linc.sh.
Yonatan Kra
Yonatan Kra
Vonage, Israel
Talk: Nodejs Runtime Performance Tips
Yonatan has been involved in some awesome projects in the academy and the industry - from C/C++ through Matlab to PHP and javascript. Former CTO at Webiks and Software Architect at WalkMe. Currently he is a software architect at Vonage and an egghead instructor.
Richie McColl
Richie McColl
DAZN, UK
Talk: Visualising Front-End Performance Bottlenecks
Software engineer. Passionate about web performance.
Milecia McGregor
Milecia McGregor
Conducto, USA
Talk: Making Your React Apps Perform At Scale
Milecia is a senior software engineer that's worked with JavaScript, Angular, React, Node, PHP, Python, .NET, SQL, AWS, Heroku, Azure, and many other tools to build web apps. She also has a master's degree in mechanical and aerospace engineering and has published research in machine learning and robotics. She started Flipped Coding in 2017 to help people learn web development with real-world projects and she publishes articles covering all aspects of software on several publications, including freeCodeCamp. In her free time, she spends time with her husband and dogs while learning to play the harmonica and trying to create her own mad scientist lab.
Majid Hajian
Majid Hajian
Softiware AS, Norway
Talk: Let the Main Thread Breathe!
Majid Hajian is a passionate software developer with years of developing and architecting complex web and mobile applications. His passions are Flutter, PWA, and performance. He loves sharing his knowledge with the community by writing and speaking, contributing to open source, and organizing meetups and events. Majid is the award-winning author of the "Progressive web app with Angular" book by Apress and the "Progressive Web Apps" video course by PacktPub and Udemy. He is (co)organizer a few Nordic conferences and meetups including GDG Oslo, FlutterVikings, Mobile Era, and ngVikings.
Martin Splitt
Martin Splitt
Google, Switzerland
Talk: Core Web Vitals - What, Why and How?
Martin is a developer advocate on the Webmaster Trends Analyst team at Google Switzerland. In this role, he helps developers and content creators build great content on the Web. He is involved with the W3C as well as the global web and JavaScript developer community, working to keep the Web open. Martin has over a decade of experience in software engineering in multiple fields.
Yonatan Kra
Yonatan Kra
Vonage, Israel
Talk: Practical Web App Performance Problem Solving
Yonatan has been involved in some awesome projects in the academy and the industry - from C/C++ through Matlab to PHP and javascript. Former CTO at Webiks and Software Architect at WalkMe. Currently he is a software architect at Vonage and an egghead instructor.
Marissa Masangcay
Marissa Masangcay
Cloudinary, USA
Talk: Faster media = faster websites
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.
Pramod Shenoy
Pramod Shenoy
Cloudinary, USA
Talk: Faster media = faster websites
Pramod Shenoy is currently working as a Solutions Architect at Cloudinary. His interests align with his 8 years of experience at Akamai and Catchpoint in web performance and optimization, CDNs and monitoring digital experiences. Outside of work Pramod likes to hike, read blogs on tech, sports and stock markets.
Akshay Ranganath
Akshay Ranganath
Cloudinary, USA
Talk: Faster media = faster websites
Akshay Ranganath is a Solution Architect at Cloudinary responsible for bringing customers on-board, helping them create work-flow for media management and media delivery. While not working, you'll find him holding camera and indulging in some photography.
Lee Robinson
Lee Robinson
Vercel, USA
Talk: How Core Web Vitals Will Affect Google Rankings in 2021
Lee is a developer, writer, and course creator. He currently works at Vercel as a Solutions Architect and leads DevRel for Next.js. He frequently speaks about front-end development, design, and the future of the web.
Ben Michel
Ben Michel
Datadog, USA
Talk: Shipping High Performance React Apps with Datadog and Real User Monitoring
Ben cares about enabling developers, and supporting open source projects that push the Web forward (OpenJS Foundation, Node.js, tc39, Unicode Consortium). As a Technical Evangelist at DataDog, he’s helping devs create delightful experiences by using real user monitoring, and distributed synthetic testing. Ben has also led JavaScript meetups over the years (PDXNode, WebAudioPDX), and occasionally produces music.
Chris Ferdinandi
Chris Ferdinandi
The Vanilla JS Guy, USA
Talk: Service Workers: How to Run a Man-in-the-middle Attack on Your Own Site for Fun and Profit
Chris Ferdinandi helps people learn vanilla JavaScript. He believes there’s a simpler, more resilient way to make things for the web. His developer tips newsletter is read by thousands of developers each weekday. Learn more at GoMakeThings.com.
Ken Wheeler
Ken Wheeler
React Artist, USA
Talk: Doing the Least Amount of Work Possible: An Intro to Runtime Performance
Core Architecture@[REDACTED], ReactJS Advocate, Speaker, Producer, Synthwave Artist, Google Dev Expert.
Tamas Piros
Tamas Piros
Cloudinary, UK
Talk: Panel Discussion: Get to Know: Web Performance and Core Web Vitals
Tamas is a Google Developer Expert in Web Technologies and a Developer Experience Engineer. He has more than a decade of experience delivering technical training to large, prestigious organisations. He is passionate about unlocking the latest & greatest features of web development.
Eric Portis
Eric Portis
Cloudinary, USA
Talk: Panel Discussion: Get to Know: Web Performance and Core Web Vitals
Eric lives and works in Bellingham, WA. He used to produce fine art prints for a living and do web standards as a hobby; in 2016 he flipped that script and now works as a Web Platform Advocate at Cloudinary.
Cassidy Williams
Cassidy Williams
Netlify, USA
Talk: Panel Discussion: Get to Know: Web Performance and Core Web Vitals
Principal Developer Experience Engineer at Netlify. I like jokes, karaoke, and mechanical keyboards!
Houssein Djirdeh
Houssein Djirdeh
Google, USA
Talk: Panel Discussion: Get to Know: Web Performance and Core Web Vitals
After writing his first line of JavaScript, it only took Houssein three short years to become an accomplished developer, author, speaker, and advocate. He is an engineer on the Chrome and Web team at Google working on improving the open-source framework ecosystem. Houssein has given talks on progressive enhancement and building for the mobile user at dozens of conferences and events worldwide.