Senior Software Engineer

Senior Backend Engineer | Madrid or MálagaLocation: Madrid or Málaga (4 days onsite, 1 day remote)We're partnered with a leading global FinTech that is scaling rapidly and looking to hire Senior Backend Engineers to join its growing engineering team.Operating across Europe and South America, the business is building and evolving a large-scale platform that powers international financial services. This role sits within a customer-facing product team, offering the opportunity to work on complex systems, influence technical direction, and take ownership of products from design through to delivery.Responsibilities• Develop and enhance scalable backend services and customer-facing products• Collaborate with engineers and technical leaders to design new services and components• Lead initiatives from discovery through to production• Mentor and support other engineers within the team• Work closely with Product and Operations teams to deliver impactful solutions• Take ownership of the systems you build, including maintenance and continuous improvement• Contribute to architecture discussions and engineering best practicesRequirements• Strong experience building complex software systems• Commercial experience with Python, Node.js, or another modern OOP language• Experience working within financial services, fintech, payments, banking, lending, trading, or other regulated environments• Strong understanding of APIs, integrations, monitoring, and distributed systems• Experience working with and improving legacy systems• Passion for writing clean, testable, well-covered code• Comfortable contributing to CI/CD and infrastructure where required• Strong communication skills in EnglishTech EnvironmentPython, Node.js, Terraform, Jenkins, CI/CD, APIs, Distributed Systems, Cloud InfrastructureWhat's on Offer• Competitive salary• Performance bonus• Clear career progression framework• Ongoing training and certification support• Diverse and collaborative engineering culture• Opportunity to influence technical design and product direction• Flexible working environment with operational flexibility when neededThis is an opportunity to join a high-growth FinTech where engineers are trusted to take ownership, contribute to key technical decisions, and help shape the future of a globally scaled platform.If you're interested in learning more, feel free to get in touch!