Senior Frontend developer

Job Description

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. Our headquarters are based in sunny Barcelona.

Certified Google Publishing Partner

Certified Facebook Instant Articles Official Partner

If you feel like a Front-end Jedi, join the Marfeel Force you must!

This is you:

-Your life begins and ends with a slash.

-You feel like you have a mission, not just a task, and you write testable front-end code in JavaScript and HTML/CSS.

-You understand iterative development and a day without pushing code makes you sad.

-You’re not afraid to crack open an existing code base and bend it to your will.

-“Self Starter” is your middle name. You can take or come up with a high-level idea and run with it.

-You have a real understanding of building products that work at web scale.

-You can’t imagine your life without a whiteboard, open-source boards and definetly CODE.

-You know the importance of being part of a universe where all the departments need each other and work together for a mutual goal. So, your communication shows both tech and functional command of what you’re doing.

-As a software craftsperson you will advocate and practice pair-programming, test-driven development, refactoring, collective-code ownership and continuous integration.

-You care about online news and user experience.

-You are an international team player.

-You are eager for knowledge.

-You have lots of stamina and you get bored if you have nothing to do.

-You are hands-on and proactive.

-You are fluent in English (this is a must).


-You can solve technical problems equally well with OO, DOM oriented, or functional JS.

-You have the ability to create an interface using JavaScript, HTML and CSS.

-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, etc.).

-You have >2 years experience building software that works at web scale.

-You have demonstrable experience with cross-browser JS and CSS development. If you also have experience in Java that will be great.

-You have experience with client-side site development in JS.

-You have a solid understanding of HTML5 tags - functions and intent.

We will be impressed if:

-You have experience with Webpack, SASS and Jasmine.



-Experience with more recent web technologies (i.e. localStorage, geolocation, CSS transitions and transformations).

-Experience with Google Analytics.

-Experience with AdServing.

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


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 30 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.

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Job Details

Monthly Salary:
Seniority Level:
Not Applicable
Job Function:
Employment Type:
Full Time
3 months ago
3 days ago

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