Staff Software Engineer

Staff Software Engineer Salary: £130K – £140K + Equity Location: London in office Data Idols are working with a rapidly scaling software company who are looking for a Staff Software Engineer to join their team. The product sits at the intersection of AI systems, complex data workflows, and enterprise-grade reliability, turning sophisticated technology into tools that can be trusted in production. The Opportunity This role is about building serious backend infrastructure for AI systems that operate in real-world, high-stakes environments. You’ll be responsible for designing and evolving the backend services that support large-scale data processing, AI model deployment, and secure enterprise workflows. Your work will ensure that complex AI functionality is delivered reliably, performs under load, and meets strict security and compliance expectations. You’ll collaborate closely with machine learning engineers, product managers, and infrastructure specialists to turn advanced AI capabilities into production-ready systems. Alongside hands-on delivery, you’ll influence architectural decisions, guide technical standards, and help shape how backend engineering is done as the platform scales. This is a role for someone who enjoys ownership, depth, and solving hard systems problems.