5 relief security officer jobs found in Liverpool

Principal EC&I Engineer Warrington (Hybrid - 2/3 days per week in office) Contract - 12 Months Rate - £65 per hour We are seeking an experienced Principal EC&I Engineer to lead the design, development, and delivery of EC&I solutions across complex, safety-critical projects. This role is heavily design-focused, requiring ownership of electrical power system studies, protection design, and technical assurance, ensuring all outputs meet regulatory, safety, and engineering standards. Key Responsibilities Design Leadership & Delivery Lead the design and development of EC&I systems, ensuring solutions are technically robust, compliant, and fit for purpose. Own and maintain the electrical power system model (ETAP or equivalent) to support design development and validation. Produce and review key design deliverables including: Fault level calculations, Protection coordination studies, Arc flash risk assessments.  Ensure all designs align with relevant standards,...

Job Title: Principal Process Engineer Contract: 12-month contract (Inside IR35) Location: Warrington (site-based / hybrid subject to project needs) Security Clearance: UK Security Check (SC) - must be held or eligible Positions Available: 3 Role Overview We are seeking three highly experienced Principal Process Engineers to support a critical programme within the UK nuclear sector. These roles have been raised as a specific project requirement and will play a key part in the technical delivery, assurance, and development of process engineering solutions associated with RepU management and reuse. The programme relates to the UK's historic and potential future use of reprocessed uranium, including its storage, conversion, re-enrichment, and potential reuse in fresh fuel cycles. Key Responsibilities Provide principal-level process engineering leadership to the project Develop, review, and approve process flowsheets, mass and energy balances, and technical documentation...

Senior Process Engineer 3 positions available Locations: Warrington or Bristol Working Pattern: Hybrid - 3 days per week on site Contract Length: 12 months IR35 Status: Inside IR35 Security Clearance: UK Security Check (SC) - required Start: Subject to clearance & onboarding The Role We are seeking experienced Senior Process Engineers to support a strategically important programme within the UK nuclear sector. This role will be supporting the technical development, assessment and delivery of process solutions associated with the handling, conversion, and potential reuse of reprocessed uranium originating from historic reprocessing operations. You will play a key role in process definition, safety justification, and technical assurance across the fuel cycle, working within a highly regulated nuclear environment. Key Responsibilities Lead and deliver process engineering activities across RepU-related systems and facilities Develop and review process flows, mass...

Senior Software Developer (Ruby on Rails) – Business Analysis Focus  Contract position Outside IR35 Remote Role Overview This is a contractor assignment for an experienced Senior Software Developer with a strong focus on business analysis and pre-development solution shaping within a finance environment. The role is designed to provide short-term, high-impact support to Finance and Digital teams by ensuring business needs are clearly understood, analysed and translated into actionable requirements before development begins. Key Responsibilities Engage with Accounting, Controlling and FP&A stakeholders to elicit, clarify and challenge requirements before software development starts. Analyse current-state and target-state finance processes, identifying inefficiencies, risks and opportunities for simplification. Translate business needs into clear, prioritised functional and non-functional requirements suitable for delivery teams. Act as the initial gatekeeper for new...

Principal EC&I Engineer Whitehaven (Hybrid - 2-3 days per week in office) Contract - 12 Months Rate - £65 per hour We are seeking an experienced Principal EC&I Engineer to lead the design, development, and delivery of EC&I solutions across complex, safety-critical projects. This role is heavily design-focused, requiring ownership of electrical power system studies, protection design, and technical assurance, ensuring all outputs meet regulatory, safety, and engineering standards. Key Responsibilities Design Leadership & Delivery Lead the design and development of EC&I systems, ensuring solutions are technically robust, compliant, and fit for purpose. Own and maintain the electrical power system model (ETAP or equivalent) to support design development and validation. Produce and review key design deliverables including: Fault level calculations, Protection coordination studies, Arc flash risk assessments.  Ensure all designs align with relevant standards,...