BarcelonaJS November

Hello everyone! Join us for the next meetup. As always, we will have two talks followed by a networking session.

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Privacy-first architecture
by Andrey Sitnik
Front-end principal at Evil Martians

Local-first community created a fresh new architecture for our world dominated by cloud. In this talk, Andrey, will advocate for local-first architecture, delve into its unique futures, and provide real-world production experience.
This talk is helpful for every engineer because it contains multiple steps to improve privacy. From simple first steps without rewriting the app to profound revisions utilizing local-first architecture- there’s something for everyone.

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Faster user interactions - Free the main thread from 3rd parties
by Anton Efanov
Web Performance Engineer at Push Based

Most websites use 3rd-parties like analytics, trackers, etc. They pollute the main thread and slow down the app bootstrapping, rendering, and UI response on user interactions. I want to tell a story about our battle against a massive tracking & analytics performance impact on a large SPA, which resulted in a >50% INP improvement.

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After the talks, we'll have drinks and networking!
Are you interested in giving a talk or have a question? You are welcome to comment or shoot a meetup message to the organizers.
And don't forget to follow us on Twitter for the latest news @BcnJS

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Sponsors:
Factorial

At Factorial, we recognize a stark reality: most people spend over half their lives in jobs that don’t fulfill them. This drives our mission to transform workplaces. By automating and centralizing bureaucratic tasks, we enable businesses to focus on what truly matters — their people.

Our approach streamlines operations, from HR requests and time tracking to automating procurement and finance, empowering employees to find joy and fulfillment in their work. At Factorial, we help change the world by helping people grow.

We’re a 1,000-person unicorn headquartered in Barcelona, always looking for new talent in Engineering, Design, and Product.