#1 Job Board for tech industry in Europe

  • Job offers
  • 👉 Core Web Vitals Expert
    New
    JS

    👉 Core Web Vitals Expert

    4 273 - 5 782 USDNet/month - B2B
    Type of work
    Full-time
    Experience
    Senior
    Employment Type
    B2B
    Operating mode
    Remote
    Xebia sp. z o.o.

    Xebia sp. z o.o.

    Xebia to globalna grupa firm tworzona przez ponad 5000 ekspertów. Od 20 lat doradzamy i tworzymy rozwiązania IT szyte na miarę dla Klientów z całego świata. Łączy nas chęć ciągłego rozwoju. Dlatego podejmujemy każde, nawet najtrudniejsze wyzwania.

    Company profile

    Tech stack

      Core Web Vitals

      advanced

      CSS3

      regular

      HTML5

      regular

      JavaScript

      regular

    Job description

    Online interview

    🟣 You will be:

    • analyzig and optimizing web performance with a focus on Core Web Vitals (LCP, FID, CLS),
    • improving site speed using tools like Google Lighthouse, PageSpeed Insights, and Chrome DevTools,
    • optimizing JavaScript, HTML, and CSS for better performance and faster rendering,
    • identifying and eliminate render-blocking resources to enhance page load speed,
    • enhancing React.js application performance and reduce unnecessary re-renders.


    🟣 Your profile:

    • 3+ years in web performance optimization, with a strong focus on Core Web Vitals (LCP, FID, CLS),
    • strong expertise in JavaScript (ES6+), HTML5, and CSS3, including performance-oriented coding techniques,
    • hands-on experience in analyzing and optimizing web performance using: Google Lighthouse, PageSpeed Insights, WebPageTest, Chrome DevTools,
    • strong understanding of critical rendering path, render-blocking resources, and browser rendering behavior,
    • experience in React.js performance optimization,
    • experience in improving Time to First Byte (TTFB) and optimizing server response times,
    • fluent English (min. B2)



    Work from the European Union region and a work permit are required



    🟣 Recruitment Process: CV review – HR Interview – Technical Interview – Client Interview – Decision




    🎁 Benefits 🎁


    Development:

    • development budgets of up to 6,800 PLN,
    • we fund certifications e.g.: AWS, Azure,
    • access to Udemy, O'Reilly (formerly Safari Books Online) and more,
    • events and technology conferences,
    • technology Guilds,
    • internal training,
    • Xebia Upskill.


    🩺 We take care of your health:

    • private medical healthcare,
    • multiSport card - we subsidise a MultiSport card,
    • mental Health Support.


    🤸‍♂️ We are flexible:

    • B2B or employment contract,
    • contract for an indefinite period.
    tutlo_banner_hero

    Practice your English before your job interview!

    Get 3 free English lessons
    4 273 - 5 782 USD

    Net/month - B2B

    Check similar offers

    Fullstack Developer (React, Node.js)

    New
    Angry Nerds
    3.8K - 5.91K USD
    Gdańsk
    , Fully remote
    Fully remote
    Node.js
    TypeScript
    JavaScript

    Senior Frontend Engineer (L5-L6) 100% remote

    New
    Apollo.io
    7.04K - 9.81K USD
    Warszawa
    , Fully remote
    Fully remote
    React
    Webpack
    JavaScript

    Senior React Native Developer

    New
    DCG
    6.54K - 7.29K USD
    Warszawa
    , Fully remote
    Fully remote
    React Native
    TypeScript
    React

    Senior Angular Developer (with Spartacus)

    New
    Cloudflight
    4.22K - 6.96K USD
    Wrocław
    , Fully remote
    Fully remote
    NgRx
    RxJS
    CSS

    Senior Frontend Developer (Angular)

    New
    Data System
    3.77K - 4.53K USD
    Wrocław
    , Fully remote
    Fully remote
    Angular
    AWS
    Karma