Backend Software Engineer (Java / Python / C#) – Investment Banking

Backend Software Engineer (Java / Python / C#) – Investment Banking £80,000–£95,000 + bonus & benefits | West London | Permanent | 5 days onsite We’re hiring a mid-level Backend Software Engineer to join the London technology team of an investment bank, building mission-critical systems supporting global payments and financial markets. You’ll work on high-performance backend systems that provide end-to-end visibility across payment lifecycles and connect into trillions of dollars of global liquidity and capital . This would suit an engineer who enjoys solving complex technical problems and wants to work on large-scale, business-critical systems. What we’re looking for: Strong backend software engineering experience Commercial experience with Java, Python or C# Strong problem-solving and software design skills Experience working with scalable, distributed or high-performance systems Experience participating in or leading code reviews Ability to support and mentor other engineers You do not need to tick every technology box . We’re interested in strong backend engineers first and foremost. Experience with any of the following would be useful: Java 17+ / Spring Boot Oracle SQL Document databases Kubernetes Jenkins GitHub Copilot or other AI coding tools Building AI agents or using AI to improve engineering productivity Salary: £80,000–£95,000 + bonus & benefits Location: West London Working pattern: 5 days per week onsite Visa: Candidates must already have the right to work in the UK. Unfortunately, sponsorship is not available. If you’re a backend engineer looking to move into, or continue working within, financial services, please apply with your CV for immediate consideration.