Senior Front-end React.Js

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Empresa

Marfeel Solutions SL

Descripción de la Empresa

Be part of Marfeel, one of the hottest European start-up companies in the mobile ad-tech world, named as Wired Magazine’s 2015 and 2016 Top 100 Startup and in 2017 Inc.5000 nº 1 Fast Growing Marketing and Advertising Private Company in Spain. We are recommended at the very top by Google itself for our top performant mobile 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

Provincia

Barcelona

Localidad

Barcelona

Tipo de Contratación

Tiempo Completo

Descripción de la Plaza

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 technique

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

Mínimo Nivel Académico Requerido

Universidad Completa

Mínimo Nivel de Inglés Requerido

Intermedio

Mínima Experiencia Laboral Requerida

5-10 años

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