Senior Python Developer


Our client wants to change financial services forever, for better.

They are looking for independent thinkers, problem solvers, entrepreneurs and creative minds

If you are passionate about technology, interested in financial services and want to have an impact in the combined world that is fintech, you came to the right place.


To facilitate the next stage of their growth they are looking for a Senior Python Developer to join our Madrid team in building awesome trading and rebalancing algorithms as well as integrations of third party APIs and FIX trading protocols.

The ideal candidate should be proficient in Python 3, Django and be very familiar with SQL databases, REST APIs and Amazon Web Services.

Key responsibilities

  • Integration of user-facing elements developed by front-end developers with server side logic
  • Implementation of security and data protection
  • Integration of multiple data sources and databases into one system

Development task

  • Developing RESTful APIs with DjangoRestFramework
  • Creating a global flexible configurable architecture
  • Integrating third-party APIs.
  • Working with task queues such as Celery.
  • Using AWS services
  • Automating testing with PyTest.
  • In Git, working with gitflow.
  • Implementing security best practices

Technologies applied

  • Python 3
  • Django & Django Rest Framework
  • PostgreSQL
  • Celery
  • Redis
  • AWS services such as EC2, RDS, ElastiCache, SQS
  • Ansible


  • Meal allowance
  • A breakfast kitchen and fruit during the day
  • A budget for your equipment
  • Access professional learning resources
  • Remote work friendly
  • Flexible working hours


Jesús Cal Estepa, IT Recruitment Consultant - Your e-Frontiers consultant for this job

Jesús is an IT Recruitment Consultant based in Madrid with e-Frontiers. He holds a Degree in Psychology and postgraduate studies in Human Resources Management. Jesús is focused on Python, Java and C++ roles, creating strong relationships with candidates to improve their career and at the same time provide a quality service to the clients.

Specialises in: Python, Java, C++, C