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We’re building AI tools that remove admin work for sales teams. Small technical team (4 devs today) and a lot of ownership from day one. We work in Python (core), plus Go/Rust for newer services. We’re looking for someone who enjoys backend architecture, integrations, and performance work. What you’ll work on: – Designing and building backend services and APIs – Improving performance across networking, latency, and memory – Building integrations with CRMs/ERPs – Working on CI/CD, observability, and multicloud infra – Collaborating directly with the CTO and CEO on product architecture Requirements: – 5+ years backend development – Strong Python – Experience with Go or Rust is a plus – Experience integrating with enterprise systems (CRM/ERP) – Comfortable in a small, fast-moving startup environment – Able to be in our London office 2 days per week If interested, email us at jobs@sophie.ai with your GitHub/CV or a short note.