Backend Software Development Engineer I

Software Engineer (backend)Location : UK (Remote) Salary : £125k –£145k + annual performance bonus ❌The legal documents underpinning those transactions are dense, nuanced, and mission-critical, and right now, most of that complexity is still handled by hand. Built on years of machine learning PhD expertise, backed by a top-tier venture firm, and now operating at global scale following a high-profile acquisition, this team is tackling some of the hardest NLP problems in finance and law. Their customers include many of the world's leading law firms and the demand for what they're building is accelerating fast. As a Software Engineer, you won't be maintaining someone else's roadmap. You'll be architecting the critical backbone between a cutting-edge AI data platform and the professionals who depend on it daily. Your decisions will ship. If you want to do the most meaningful work of your career, in a team that moves fast, thinks deeply, and gives a damn about craft - read on. Design and build scalable backend services and APIs that power a document analysis platform used by major legal and financial institutions Write high-performance, maintainable server-side code and data processing pipelines Build and maintain integrations with third-party services and internal ML systems Contribute to frontend features and components as needed to deliver end-to-end functionality Drive performance optimisation for data-intensive backend operations Champion engineering excellence — contribute to code practices, design patterns, and long-term maintainability 6+ years of professional full-stack development experience with a strong backend focus ~ Proficiency in backend technologies - Python (FastAPI, Django, or Flask) is preferred; Node.js, Java, or Go also considered ~ Strong understanding of RESTful APIs , database design, and data modelling (SQL and NoSQL) ~ Experience with containerisation and orchestration (Docker, Kubernetes) and cloud platforms (AWS preferred) ~ Proficiency in TypeScript and React for frontend contributions ~ Foundation in distributed systems, event-driven architectures, and web fundamentals ~ Bachelor's degree in Computer Science or related field, or equivalent practical experience Experience building data processing pipelines or working with large-scale data systems Experience optimising backend performance for data-intensive applications Interest in language, economics, or legal/financial domains 15 - 20% annual performance bonus ~ Fully remote - work from anywhere in the UK ~ Private medical, dental, and vision insurance ~ Pension and retirement planning support ~ Flexible paid time off Research indicates that men will apply to a role when they only meet 50-60% of the descriptions, however, when looking at women and other minority groups, they can look for up to a 99% match in order to apply to a role. We encourage underrepresented talent to apply to all our roles & support accessibility needs