Senior Software Engineer

Software Engineer - AI/TypeScript/Rust Location: Hoxton, London - five days per week in the office. We''re partnering with an AI startup building software to help businesses make better financial and strategic decisions. Their first product brings AI agents into Excel, helping users build and work with complex financial models. They''re looking for a Software Engineer to take ownership of features across the product, working within a small, highly technical team. The stack is primarily TypeScript, with Rust used for performance-critical components. What you''ll be doing Own features end-to-end, spanning Rust services, backend systems, and frontend interfaces. Use AI development tools such as Claude Code and Cursor to deliver high-quality software quickly. Improve the AI agent''s tools, execution framework, and use of context. Optimise performance across services, database queries, caching, and memory usage. Improve backend infrastructure and CI, investigating and resolving low-level bugs. Work closely with design to build polished, consistent user experiences, taking increasing ownership of the product. What we''re looking for Evidence of exceptional engineering ability through your work, projects, or technical achievements. Strong ownership, initiative, and determination to solve difficult problems. Confidence working across the stack and learning unfamiliar technologies quickly. Practical experience with AI coding tools, strong prompting skills, and ..... full job details .....