We are hiring a Senior Backend Engineer to join a fast:growing sustainable construction tech space company. The company is using data:driven technology to reduce waste and carbon emissions in the global concrete supply chain. Key responsibilities: Build and optimise backend services using modern, event:driven architecture on AWS Work on new features, APIs, performance tuning, and CI/CD improvements Collaborate closely with Data Science to deploy ML workloads in streaming systems Influence architecture and own key infrastructure components Key Skills: Five years with TypeScript and AWS Strong experience with Lambda, Kinesis, EventBridge, and CDK v2 Strong attention to detail and ability to work independently Python experience Familiarity with JIRA and Confluence Hybrid : 2 days a week in Central London: