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 bonusPrivate health insuranceMeal vouchersBudget for training and certificationsOpen-source-friendly cultureHybrid model: 4 days in the office, 1 remoteYour profile:Strong experience building complex backend systems (Python preferred, other OOP languages also welcome)Experience in fintech, banking, or regulated environments is highly valuedComfortable working with legacy code and improving it over timeStrong knowledge of APIs, integration, monitoring, and alertingExcellent communication skills in English (international team)Ownership mindset and responsibility over production systems

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Senior Backend Engineer (Python or OOP)