DevOps Engineer

Yoyo Wallet, London

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Launched in 2014 at Imperial College London, Yoyo Wallet has become the UK’s fastest growing mobile wallet by expanding across hundreds of University and Corporate locations. In the process Yoyo has developed a unique platform that opens up a global opportunity to power seamless payment and loyalty experiences for retailers, developers and financial institutions across the world. Founded by Alain Falys and Michael Rolph, Yoyo has raised significant funding ($15m as of September 2015) and built a team of energetic entrepreneurs who know how to get things done. With so much potential ahead, Yoyo is looking for a DevOps Engineer to join our team.

If you are looking to join a fun, fast growing FinTech firm, keep reading. We were recently chosen by KPMG as one of 50 FinTechs to watch globally. Now in our 4th year, we are in over 40 UK universities, over 100 corporate locations and have a global presence with business in the US, Spain, Ireland and Singapore.

The Yoyo Wallet product comprises of iOS and Android apps that talk to a suite of APIs powered by the Yoyo platform. We use a service-oriented architecture to support real-time, high-volume transactions that consistently deliver sub-one-second response times at the point-of-sale.

 Our technology stack includes (but is not limited to):

  • Python and Django framework to write our application logic
  • PostgreSQL for relational database
  • DynamoDB for NoSQL
  • Terraform for managing our cloud infrastructure
  • Docker and AWS EC2 Container Service (ECS) for packaging and running our services
  • AWS for hosting our infrastructure
  • RabbitMQ and Celery for message queue
  • CircleCI and ChatOps for continuous deployment
  • Ansible and Fabric for automating workflows
  • React for internal dashboard


  • Architect a system for High Availability, Security, and Scalability
  • Automate provisioning, deployment and scaling of infrastructure
  • Build a monitoring and alerting system for our services and infrastructure
  • Manage the AWS infrastructure
  • Support the operations of Yoyo Wallet expansion across multiple geographies and multiple AWS regions


  • Strong background in Linux/Unix Administration
  • Ability to research and use a variety of open source technologies and cloud services
  • Experience with AWS
  • Experience with automation and configuration management using Ansible, Chef, Puppet, Terraform and/or an equivalent
  • Experience building and maintaining real-world products using continuous integration/deployment to enable engineers to deploy code and configuration from local environments through to production
  • A working understanding of code and script (We prefer Python, Golang, Ruby and/or Bash)
  • Knowledge of best practices and IT operations in an always-available service
  • Strong attention to detail and a deep understanding of what would benefit our users most
  • Personable, enthusiastic, and articulate and a propensity to iterate on products in weekly cycles
  • Positive entrepreneurial outlook with the ability to be flexible in our changing environment
  • Previous exposure to mobile payment or mobile apps is an asset


Working as part of an early stages company is challenging. It’s not all ping pong tables and free beer…..well sometimes it is! What you are willing to put into growing the company will determine not only our success, but yours.  If you are ready for this challenge then we promise:

  • Competitive Salary with health insurance and pension scheme
  • All the equipment necessary to make sure you are able to do your role effectively
  • Monthly credit to your Yoyo Wallet account
  • Work in a collaborative, flexible, open-minded and flat organisation
  • Work on challenging real-world problems that you can take ownership of
  • Build something today and see it in people’s hands tomorrow
  • Great central London location and an AWESOME team!

About Yoyo Wallet

Who we are Yoyo is the fastest growing mobile wallet in Europe. As a consumer, that means you can use Yoyo for secure mobile payment, automated loyalty and digital receipt collection whilst also receiving offers personalised to what you buy along and using wider functions like pre-ordering. Put simply, we’re taking technological advancements and revolutionising the brick and mortar retail experience for retailers and their customers. Now in its 4th year you can use Yoyo across high streets, universities and corporate locations.

Want to learn more about Yoyo Wallet? Visit Yoyo Wallet's website.