Senior Backend EngineerLocation: LondonWork Type: On-siteCompany DescriptionWe are a rapidly growing consumer technology company operating at the intersection of AI, aesthetics, and digital experiences. With a global community of millions, we are building innovative AI-driven products that are transforming how users engage with and understand visual data.Our offerings range from consumer-facing AI analysis tools to partnerships with leading global brands. As we scale quickly, we are expanding our team and pushing the boundaries of how technology and user experience come together.Role DescriptionWe are seeking a talented Senior Backend Engineer to join our London-based team full-time. You will play a key role in building and scaling the core infrastructure of our AI platform, owning critical backend systems, and supporting rapid product growth.This is a high-impact, fast-paced role with significant autonomy, where your work will directly influence product direction and user experience.Key ResponsibilitiesDesign and implement backend services and APIs using Python, FastAPI, and DjangoBuild and maintain scalable RESTful APIs with PostgreSQLDevelop and integrate AI/LLM-powered features using frameworks such as LangChainImplement and manage payment systems, including Stripe integrations and subscription flowsBuild image processing and computer vision pipelinesWrite clean, maintainable, and well-documented code deployed via Docker and CI/CD pipelinesCollaborate using GitHub, mainta