Back-end Developer (Node.js) in Barcelona


45,000 - €60,000
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Job Description

We currently have a Back-end Developer open position in our Barcelona office.


  • It's a challenging project where you will work back to back with multiskilled AI teams. You will build consumer-facing apps for clients integrating technologies like Computer Vision, Machine Learning or Natural Language Processing.


  • Together with a dedicated team of highly skilled developers be responsible for maintaining and develop all parts of a complex service-oriented system.
  • Plan and implement model data structures for scalability.
  • Work with a large arsenal of open source and cutting-edge technologies such as Node.js and MongoDB.
  • Write secure code and create applications based on microservices architecture.
  • Participate in all phases of the development life cycle, focusing on coding, testing, and debugging.
  • Work on the maintenance or enhancement of existing data structures.
  • Develop additional server level functionality and tools.
  • Research, evaluate and analyze technical and design requirements.


  • 4+ years of experience in Back-end development
  • Bachelor's or Master's degree in computer science or equivalent
  • Experience in Node.js, MongoDB
  • Knowledge on Python (optional)
  • Resourceful and self-motivated on innovation
  • Immediate availability
  • Test-Driven Development
  • Continuous integration (Jenkins, Travis)
  • Resourceful and self-motivated on innovation
  • Really good understanding of the Linux ecosystem and experience with server management
  • Knowledge of Docker and RabbitMQ
  • Experience with high availability Solutions

About GoldenSpear

  • Ai

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