Senior Systems Engineer London (Hybrid) In-Vitro diagnostics Complex systems High-growth environment 6-12 month contract, highly competitive rate, inside IR35. Are you a Systems Engineer with deep experience in IVD or medical device development, looking to play a key role in bringing a revolutionary new diagnostic platform to market? This is an opportunity to join a fast-growing, multidisciplinary team working at the forefront of molecular diagnostics, where you ll shape system architecture, lead technical problem-solving, and influence the direction of an entire platform. The Opportunity As a Senior Systems Engineer, you ll work across engineering, science, software, and quality teams to define system requirements, develop system architecture, and ensure robust traceability across the full product lifecycle. You ll also guide and mentor colleagues as the team advances a complex electro-mechanical instrument and consumable system through development. You ll be hands-on with system modelling, experiment design, integration work, and the development of innovative approaches to solve challenging technical problems. This role is ideal for someone who thrives in dynamic, fast-paced environments and enjoys working on cutting-edge technology with real-world impact. Key Responsibilities Define system requirements, system architecture, and risk/requirements traceability for a next-generation IVD platform. Work closely with external developers and contractors to ensure clear co