Senior Frontend Developer - React 2

Senior Frontend Developer – React

Marfeel helps publishers of all sizes to create, optimize and monetize their mobile websites. We have been named 16th fastest-growing European company of 2018, by The Financial Times, but we still think we have a long way to go to where we want to be.

We are looking for talented Front-end Engineers to join our Core product team and be part of a multicultural and talented Engineering team of over 70 developers, in sunny Barcelona.

You will be part of a team who owns the performance and the architecture of our front-end ecosystem that supports over 15 million visits a day. Currently we are in the process of redefining our architecture in React. Fancy helping us?

You will:

Be part of a multicultural and talented company, consisting of 28 nationalities.

Help us define and implement our new front-end architecture

Have a say in what libraries, tools and technologies we use for front-end development

Join a fun and dynamic Core product team that follows Agile practices.

Have opportunity and support to grow and develop your career further

Be able to help us shape our rapidly growing Engineering department

What the team is looking for:

You have proven experience in delivering end-to-end features in ReactJS and other modern Javascript front-end technologies for mobile applications

You have worked with Styled Components and style sheet languages, such as SASS

You know different ways of managing application state in the front-end

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 are familiar with modern development and build tools such as git, npm, babel, and webpack

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

You are comfortable contributing to and leading technical and/or architectural discussions

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

You continually strive to share your knowledge around best code practices

You have high emotional intelligence and finding it easy to empathise with others

You don’t take yourself too seriously and enjoy a few jokes now and then

The team will be further impressed with:

You have experience with developing Progressive web applications, service workers, push notifications

You know how to analyse and optimise the performance of a front-end application

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 front-end 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, VueJS, Google Analytics, AdServing, Linters

As part of Marfeel, you will also have:

Flexible working-time

Free coffee, tea, juices and other commodities

Beer tap in the kitchen

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

A little bit more about us:

Marfeel is one of the hottest European start-up companies in the mobile ad-tech world.

We have been named:

16th out of Europe’s 1000 fastest-growing companies of 2018, by The Financial Times

Nº 1 Fastest Growing Marketing and Advertising Private Company in Spain in 2017, by Inc.5000

Top 100 Startups in 2015, by Wired Magazine

We are highly recommended by Google for our mobile design solution, and together with our partners, we have over 6 billion worldwide readers and over 20 billion page views.

Certified Google Publishing Partner

Certified Facebook Instant Articles Official Partner

Detalle Oferta:

Area de trabajo:

Comunidad Autónoma:






Duración Contrato:


Jornada Completa

Tipo de contrato

Contrato Indefinido



Ubicación en el extranjero:


Requisitos Mínimos:

Nivel senior de programación frontend

Experiencia Mínima:

Más de 3 años

Estudios mínimos:

Educación Secundaria Obligatoria

Situación Académica:

Dominio de Informática:

Título obtenido:

Centro / Institución:

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