Full Stack Developer in Barcelona


Undisclosed salary
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Job Description

Requirements :


Desired qualifications / skills:

  • Full stack developer.

  • A graduate degree (BS, MS or PhD) in computer science, software engineering, mathematics, artificial Intelligence or related is highly valued, but not required if you can demonstrate skill-based fluency

  • Preferred work experience with:

- Blockchain technology

- Strong algorithmic knowledge and/or experience with distributed systems


The ideal candidate should excel in the following tasks:

  • Participate in the technical design and implementation of new features and system components

  • Developing node.java-script code implementing the most critical parts of the security

  • Writing unit tests concurrently or pre-emptively to writing code

  • Maintaining his/her node.js code, unit tests, security tests and functionality tests



  • GIT

  • SQL

  • Python

  • node.js + some libraries (lodash and async are the must)

  • Redis

  • HTML/CSS (using some template engine, e.g. Jade/pug, EJS etc)


  • Database security/architecture

  • Public key encryption and encryption key management

  • Any other web-related technology is a big plus


Successful candidates should have a minimum of 2 years experience as a full stack developer. Fluency in English is a prerequisite.


Advantages :


By joining B4Finance:

  • You will improve your knowledge in an innovative and fast growing technology

  • You will have your voice at the table when decisions are made on the architecture and the design of the solution

  • You will be part of a dynamic team and work in a startup atmosphere where we all grow together as a team


About B4Finance

  • Fintech

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