React Javascript Developer

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📅  Posted 18 days ago 📍 United Kingdom
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Job Description

This is a UK based role and we are only able to consider people who currently reside or have work authorisation in the UK.


We are looking for a Frontend developer with proven experience delivering a sizeable React application to production. You will help modernise and evolve legacy code and also build new user facing web features. Good knowledge of JS and React is essential. We have millions of users across our mobile offerings, so experience in improving and maintaining performance is also a bonus.

We use Relay to manage the data from our GraphQL API, so experience with that (or something similar like Apollo) is fantastic. We also test heavily and enforce type-safety on the frontend, so let us know if you have experience with Jest and JS type systems.

We have a large user base, but a small development team. This means you'll have the opportunity to learn new skills in new areas, make a real impact and that the work is generally diverse and interesting


React/React Native, StyledComponents, Relay, FlowType, Python (Django), GraphQL (7+ years live, 400+ Million queries a day), Github + CI systems. We value techniques such as linting, automatic code formatting, unit tests, coverage reporting, snapshot testing, integration tests and type systems.

We have a remote-first work culture, although we still have an office in Brick Lane available for anyone to use. We're an agile, driven and entrepreneurial group of creatives and technologists committed to helping each other grow. We care deeply about providing engineers with the space to evolve and encourage self-starters. If you are interested in making an impact, driving audio culture forward, and helping creators around the world earn a living from their craft, come join us!


Mixcloud exists to help people connect through music. We’re a user generated music streaming service that enables creators to legally live stream and upload mixes, radio shows and original tracks for free, so they can organise their music in one place. We build tools to help DJs, radio hosts, musicians and producers build an online community, reach a wider audience and make money from music. Championing music lovers, we’ve created an environment where every genre, scene and grassroot movement can thrive without fighting algorithms. Millions of creators, curators and cultural tastemakers from around the world are using our platform to share music and form meaningful connections. We’re aiming for a world where people who care about music can connect deeply, beyond the algorithm, human to human.


We have a remote-first work culture, although we still have an office in London (Brick Lane) available for anyone to use. This includes an onsite cafe and access to cultural events; Weekly members’ drinks, Monthly Tea @ 3, and Monthly Community Lunch. Weekly wellness events (yoga, meditation boxing etc). We’re a culturally active bunch, with many of us pursuing our passions as DJs, radio hosts or creatives.

We cater weekly lunches and host quarterly team onsites and social team mixers. We offer a great benefits package that includes generous holiday, flexible working, a healthcare plan.

We offer a culture of personal development and growth. We’re serious about encouraging our employees to develop their careers through goal setting, training and mentorship. All employees have access to an online Academy full of 100+ Live & On-Demand Online Classes.

Mixcloud is committed to being a diverse and inclusive workplace. We encourage applicants of different backgrounds, cultures, genders, experiences, abilities and perspectives to apply. All qualified applicants will receive consideration for employment without regard to race, colour, national origin, religion, sexual orientation, gender, gender identity, age, physical disability, or length of time spent unemployed.



  • Develop, prototype & optimise existing & new features
  • Write, review and document code in various languages and frameworks
  • Design Front-end solutions as well as continuously improve our offering
  • Take part in regular creative brainstorming sessions to improve the product quality.
  • Engage in healthy dialogue around product briefs and provide feedback.


  • UK Residency
  • Experience of a large production React application
  • Familiarity with the following technologies: React, Git, Continuous Integration
  • Well versed in Modern Javascript, and up to date with modern technologies and techniques
  • Experience with GraphQL
  • Proficient oral and written communication skills. Collaborates well in a team environment.

Nice to Have

  • StyledComponents, Relay, Continuous Deployment
  • Familiarity with Python, Django, GraphQL, Kubernetes + Docker, Terraform + Puppet, Nginx, GlusterFS, Elasticsearch, Redis, Memcached, RabbitMQ, Github + CI systems