E-Frontiers – We help top tech talent find opportunities in leading product and scale-up companies across Europe. We make sure candidates have a great experience and get the information they need to make the best career decisions.


We are currently working with a fast-growing international fintech , seeking a Senior Backend Engineer to join their core systems team. This is a key role where you’ll work on the platform’s multi-currency accounting and FX systems – the backbone of the product.


What you’ll do:

  • Develop and maintain scalable, reliable backend systems that power key financial operations.
  • Design new services and improve existing ones, tackling both microservices and legacy code.
  • Collaborate with product and engineering teams to deliver initiatives end-to-end.
  • Mentor colleagues and contribute to the overall technical growth of the team.
  • Take full ownership of the services you build, from development to maintenance.


What they offer:

  • Competitive salary and performance-based bonus
  • Private health insurance
  • Meal vouchers
  • Budget for training and certifications
  • Open-source-friendly culture
  • Hybrid model: 4 days in the office, 1 remote


Your profile:

  • Strong experience building complex backend systems (Python preferred, other OOP languages also welcome)
  • Experience in fintech, banking, or regulated environments is highly valued
  • Comfortable working with legacy code and improving it over time
  • Strong knowledge of APIs, integration, monitoring, and alerting
  • Excellent communication skills in English (international team)
  • Ownership mindset and responsibility over production systems

Senior Backend Engineer (Python or OOP) - E-Frontiers

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