Lead the design of high-integrity PLC control systems at the heart of the UK s most regulated and safety-critical environments.Senior/Lead PLC Control systems engineer12 month contract open rateOffice-based with a Hybrid working scheme.2 openings available in either Warrington, Cumbria and Stockton (1 position available in either location)Role DescriptionWe are seeking an experienced PLC Control Systems Engineer to design, develop, implement, and test high-integrity PLC-based control systems within a regulated engineering environment.This role offers exposure to complex control systems, cyber-secure architectures, and highly regulated industries such as Nuclear. Key Responsibilities Design, develop, implement, and test PLC-based control systems to agreed engineering standards.Produce high-quality engineering documentation, including:User Requirement Specifications (URS) and Requirements Traceability Matrices (RTM)System and Functional Design Specifications (SDD/FDS)Software System Specifications (SSS) and Test Specifications (Module, Integration, System, Hardware)Operation and Maintenance Manuals (OandM)System rebuild documentation and I/O, alarm, and message schedulesProject Lifetime Records and Material Traceability Records Support the Lead Engineer and Project Manager by: Maintaining delivery schedulesReporting technical issues, scope changes, and programme variationsProgram PLC platforms (Rockwell, Schneider, Siemens) using IEC 61131 languages, producing robust function b