UK based - Hybrid 3 days onsite 2 working from home. London, Bristol, Birmingham 3-6 month rolling Inside IR35We are looking for number of Senior AI Native System Engineers, to join our Mobile networks team to transform the network using AI. The skill sets we are looking for are:- Systems engineering depth: Extensive experience designing complex software systems, distributed systems, data platforms or cloud-native services.- AI-native engineering mindset: Practical experience using AI-assisted engineering tools or coding agents to improve software delivery, testing, documentation or design productivity.- Technical fundamentals: Strong knowledge of algorithms, data structures, concurrency, operating systems, networking, APIs, integration patterns and performance trade-offs.- Cloud and platform experience: Good knowledge of cloud compute platforms, preferably AWS, including architecture patterns, security, observability, deployment and cost considerations.- Programming capability: Comfortable with system-oriented or strongly engineered languages such as Go, Rust, C/C++, Java or equivalent; Python experience is desirable for data and automation use cases.- Architecture and design leadership: Proven ability to set technical direction, resolve complex design trade-offs and guide engineering teams through ambiguity.- Quality and governance: Experience embedding secure-by-design, test-first, observable and compliant engineering practices into delivery workflows.- Communication: ..... full job details .....