Senior Backend Software Engineer [NodeJS/CDI]

About Cubyn

Born 3 years ago, Cubyn is the leader in Europe on First mile logistics, for e-merchants and brick & mortar stores which expand online.

We collect items on-demand within 2h, perform fulfillment & ship parcels, offering to our customers an Amazon-like logistics chain without constraints. We allow them to focus on their core business - marketing & selling. In 2016 & 2017, Cubyn grows 300% YoY and consolidates its leading position on first mile logistics in Europe.

Our mission is to build the largest European on-demand logistics network. At Cubyn we believe in disruptive thinking, long-term vision, humility and operational excellence.

Recent milestones

  • In July 2017, we secured a 7 Mn$ A-series fundraising to expand our operation in major European cities ›› Les Echos
  • In 2016, we shipped 200k parcels from 200+ active customers in Paris. ›› Frenchweb

What you will do

We designed our backend with a service-oriented mindset, always building small, manageable parts. As of today we have 30+ micro-services behind several gateways (REST APIs, WebSockets).

Maintaining high levels of code quality and performance is key to us (we have > 85% of test coverage throughout our backends)

As a backend engineer you will be able to have an impact on a variety of different applications at Cubyn (from web or mobile apps to warehouse systems).

This will involve:

  • Tackling projects with a problem solving mindset
  • Building scalable and reliable services
  • Making sure your code is regression free by writing meaningful tests
  • Keeping our development workflows up to date (e.g. git guidelines, CI / CD)

Technology stack:

  • Infrastructure: 30+ microservices orchestrated with Kubernetes on Google CP, Drone for CI / CD
  • Backend: NodeJS ES7, MySQL, RabbitMQ, ElasticSearch, Mocha, etc.
  • Frontend: Angular 1.x, Ionic, Gulp, LESS, etc.
  • Hardware: Node Webkit and Raspberry Pi

What we’re looking for

A modest yet passionate developer, always eager to learn and happy to share with everybody in the team


  • 4+ years of experience
  • A strong knowledge of Javascript
  • A significant experience at building APIs under NodeJS
  • A perfect understanding of REST-APIs
  • A strong knowledge of SQL (pgsql or mysql)

Nice to haves

  • Being fluent with JS ES7+ (promises, async/await, …)
  • Some experience with high availability systems and devops topics
  • Some knowledge of micro-services

Job bounties

  • 2000€ package to select your own hardware
  • Babyfoot, darts and Go

If you are interested please your CV to (feel free to include your linkedin / github profiles)