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Marfeel

Senior Frontend Developer - React

Product – Bcn, Bcn
Department Product
Employment Type Full-time
Minimum Experience Experienced

Who we are:

Be part of Marfeel, one of the hottest European start-up companies in the mobile ad-tech world. Named as Wired Magazine’s 2015 Top 100 Startups, Inc.5000 nº 1 Fastest Growing Marketing and Advertising Private Company in Spain in 2017, and 16th out of Europe’s 1000 fastest-growing companies by the Financial Times in 2018. We are recommended at the very top by Google itself for our mobile design solution. Together with our partners, we have over 6 billion worldwide readers and over 20 billion page views annually. Our headquarters are based in sunny Barcelona.

Certified Google Publishing Partner

Certified Facebook Instant Articles Official Partner

 

We are looking for a Senior Frontend Engineer to join our Engineering department of over 70 talented developers, and become part of a Core Product team that is responsible for the architecture and the performance of our frontend ecosystem that supports over 700 million visits monthly. We obsess about performance and the quality of our code, and we are looking for like-minded developers to join us.

 

This is what you will do:

  • Deliver work on-time, accurately and most importantly in a robust way that doesn’t degrade the quality of the code base
  • Drive improvements in performance and architecture of the current Marfeel platform
  • Help us become a “Developer’s platform”. This means having extremely smooth and productive developer experience that attracts external developers to collaborate with us

What we are looking for:

  • You have a solid understanding of the web technology stack (i.e. headers, cookies, cross-domain restrictions, https, caching, optimization opportunities, hardware acceleration, junk and scroll performance, server-side rendering etc.)

  • You have experience with developing progressive web applications, service workers, push notifications with React and other modern Javascript frontend technologies

  • You have worked with Styled Components and Style Sheet Languages, and you understand their tradeoffs

  • You know how to get the most out of Babel and Webpack for the performance gains

  • You actively seek out performance improvements in loading times, interaction smoothness, scroll jankiness and reactiveness (i.e.: infinite scroll, swiping, lazy load, JS throttling, etc)

  • You take ownership of your own and your team's code quality. Writing tests is second nature to you, and you have a broad understanding of UI testing techniques

  • You help develop knowledge and drive process improvements in your team

  • You have experience working in cross-functional collaborative teams, following Agile best practices

We will be further impressed if:

  • You have experience with various AWS services and understand the challenges of deploying large applications in the cloud

  • You are an active contributor to a frontend community

  • You have worked with Jenkins and familiar with CI and CD release cycles

  • You have experience with backend languages and frameworks such as NodeJS, Java, Python or any others

  • You are familiar with #perfMatters, Vue, Google Analytics, AdServing, Linters

 

This will be you as part of the Marfeel team:

  • Working in an international, multicultural and talented team and enjoying our sunny terrace.We have more than 28 nationalities so you will not get lost in translation

  • Flexible working time

  • Free commodities (coffee, tea, juices, etc)

  • Ping-pong, Mario Kart and foosball tournaments.

  • Free language and yoga classes

  • Team building events

  • Transport, restaurant and kindergarten tickets

  • Training, books and all you need to feel empowered

  • And a Referral Bonus if you bring other talented people like you.

Thank You
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  • Location
    Bcn, Bcn
  • Department
    Product
  • Employment Type
    Full-time
  • Minimum Experience
    Experienced
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