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JavaScript/ Java Full-Stack Developer

Marfeel Solutions S.L.
Barcelona, Barcelona Province, Spain
To be agreed.
December 05, 2018


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 JS/Java Full-stack Developer, be part of Marfeel, one of the hottest European start-up companies!

This is you:

You treat your work like a mission, not just a series of tasks

You live for iterative development; 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

You were born a self-starter; you can take or come up with a high-level idea and run with it until it's done

You have lots of stamina and get bored if you've got nothing to do

You're eternally curious and hungry for knowledge

You're a team player, and know the importance of working with other departments, technical or not, in achieving goals

You aren't afraid to get your hands dirty

You're experienced in the art of building web products that work at massive scale

You're not a programmer, you're a craftsman/craftswoman

You love these things: pair-programming, test-driven development, refactoring, collective-code ownership, continuous integration, refactoring

Main requirements:

Can solve technical problems equally well with OO, DOM oriented, or functional JS

Ability to create an interface using Java, JavaScript, HTML and CSS

Ability to develop server & client side in a end-to-end

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.)

More than 2 years of experience building software that works at web scale

Demonstrable experience with cross-browser JS and CSS development

Solid understanding of HTML5 tags (functions and intent)

Experience developing web architectures with Java and the Spring framework

You have strong experience in REST, Spring IoC, Spring MVC, Spring Data.

You are familiar with parallel code execution.

You are well versed in clean code and practices such as code by intent.

Familiarity with testing libraries like JUnit, Mockito and integration testing

Nice to have:

Experience with RequireJS, SASS and Jasmine



Experience with AdServing

Spring Security

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

Deployment technologies

Nginx, Tomcat, MongoDB, Quartz

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

Experience with GoogleAnalytics

Experience with AdServing

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 on an international, multicultural and talented team and enjoying our sunny terrace.

We have more than 27 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, all you need to feel the empowerment.

And, Referral Bonus if you bring other talented people like you.