Senior Full Stack Engineer

Senior Full Stack Engineer Sheffield, (Hybrid - 3 days per week onsite) £450pd Inside IR35 6 month contract We’re hiring a Senior Full Stack Engineer (AI-focused) with strong technical leadership to join our team in Sheffield. This role is hands-on and suited to someone who can lead by example, partner with stakeholders, and help shape engineering standards while delivering high-quality software at pace. Core requirements * Senior full stack engineering capability with a strong front-end foundation: * ReactJS and TypeScript * Strong back-end engineering mindset (API design, integration, performance, security) * AI/ML engineering skills (building and integrating AI-driven features into products; ideally with practical experience using modern model/tooling) * DevOps capability to support build, release, and reliability (CI/CD, automation, environment management, observability) Highly advantageous * Python development experience (especially for AI/data workloads and services) * Strong data experience (data pipelines, data modelling, analytics/feature engineering, working with structured/unstructured data) Leadership expectations * Provide technical direction, mentoring, and code review leadership * Drive good engineering practices (testing, documentation, maintainability, security) * Collaborate effectively across engineering, product, and delivery teams