Senior Javascript Developer


Hanzo is looking for talented JavascriptApplication Developers to join our super talented team of designers, strategists, project managers, technologists and content creators.

If you are a passionate and proactive professional with a deep technical know-how, who appreciates great design and has a precise eye for detail, we would love to hear from you.

What we need

  • Experience with JavaScript main frameworks and libraries: Ember or Angular welcome but specially React (and Redux/Sagas/Next) and Vue (Vuex/Nuxt)

  • Knowledge data stores, routing, API middlewares and other architectural elements of Web Applications

  • Experience delivering projects including consumption of APIs from third parties

  • Ability to read technical documentation

  • Familiar with best practices on unit and integration testing as well as libraries such as QUnit

  • Awareness of cross-browser compatibility and transpilation of modern ES features

  • Able to work remotely and communication skills

  • Pro-actively helps keeping code tidy and documented

  • Fluent in spoken and written English

  • Passion for what you do

Nice to have

  • Experience with Progressive Web Apps

  • Experience handling CORS, proxies and authentication on APIs

  • Experience dealing with different web servers like NGINX or Apache

  • Experience with any back-end language/framework

  • Experience integrating robust design systems (i.e: storybooks)

  • Experience integrating web components (StencilJS, Polymer)

About Hanzo

Hanzo is a high-end design and technology agency working for international world-class organisations across a variety of industries. For the last ten years, we have built an impressive portfolio of work for brands such as Amadeus, Vogue, Bulgari, BBVA, Virgin, Melia or Standard Chartered.

We are an ambitious group of people who love solving problems and producing best-in-class digital services, products and experiences.

We are a remote-first business, although we have bases in Madrid and Barcelona if you prefer the extra human touch of working from an office environment.

We are a highly flexible organisation open to work with both freelancers or people interested in more permanent positions.

How to apply

Say hi at and send us your details, experience or links to previous projects as well as your usual collaboration rates. Please include [JS Developer] in the title.

Thank you in advance for your interest. We will get in touch with the selected candidates for a follow-up.

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