Senior Control Systems Engineer Location: Warrington / CumbriaType: 12-Month ContractRate: £60 p/h (Senior) £65 p/h (Lead)Clearance: BPSS requiredReports to: Lead Engineer / Project Manager About the Organisation A leading engineering company specialising in delivering complex, safety-critical control and automation systems within the nuclear sector. You will join a collaborative team that values technical quality, innovation and reliable delivery. Role Overview Seeking an experienced Senior Control Systems Engineer to support the design, implementation, testing and commissioning of PLC/SCADA-based control and automation systems. This role involves hands-on technical ownership across the full project lifecycle within a regulated environment. Key ResponsibilitiesTechnical Delivery Deliver detailed design, software implementation, testing and commissioning of control systems.Develop PLC software, control philosophies, HMI/SCADA configurations and simulator applications.Ensure technical outputs meet quality, safety and regulatory standards.Support integration with electrical, mechanical and broader engineering disciplines. Design and Documentation Produce documentation including FDS, DDS, test specifications, recovery documents, OandM manuals and training material.Review and check design documentation and software produced by others.Interpret engineering drawings and support site visits to assess design impacts and risks. Testing and Commissioning Plan and deliver FAT, CAT, S