Control & Instrumentation (C&I) - Design Engineer

## Company Description **ALTEN** is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation. Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today. Join us and start building tomorrow’s world today! ## Job Description ALTEN UK is seeking a motivated **Control & Instrumentation (C&I) - Design Engineer** to join our growing team in **Derby | Manchester | Warrington**, supporting key projects within the Energy sector. This is an exciting opportunity for engineers looking to develop deep technical expertise across the full lifecycle of control and instrumentation systems. As a **Control & Instrumentation (C&I) Engineer**, you will join our team to support the delivery of complex projects within the **nuclear and safety-critical industries**. This role focuses on the detailed design and specification of **Supervisory Control and Data Acquisition (SCADA) systems**, automation platforms, and primary plant control and monitoring interfaces. You will be responsible for transforming high-level safety, functional, and operational requirements into robust engineering designs suitable for implementation by software and hardware vendors. Working closely with systems engineers, safety specialists, human factors teams, cybersecurity experts, and platform suppliers, you will play a key role in ensuring that solutions meet stringent safety, reliability, performance, and regulatory requirements. **Key Responsibilities:** - Analyse and decompose requirements from: - Safety Requirement Specifications (SRS) - Functional Requirement Specifications (FRS) - HMI design requirements - Alarm management philosophies - Hardware, software, and network architectures - Develop detailed requirements for: - Data acquisition and processing - Control logic and automated sequencing - Communication interfaces and data routing - Diagnostics, health monitoring, and redundancy functions - Maintain end-to-end traceability between system requirements, detailed designs, and vendor deliverables - Verify requirements for completeness, consistency, and compliance with applicable standards - **SCADA & Control System Design** - Produce detailed design documentation including: - Functional block diagrams - Logical architectures - Signal routing and data flow specifications - I/O allocation schedules - Communication and networking requirements - Alarm definitions and prioritisation schemes - HMI display logic and data mapping - Define system operating modes, fail-safe behaviours, redundancy concepts, and recovery strategies - Develop high-quality engineering design packages for software and hardware development teams - Produce technical specifications enabling vendors to: - Develop application software - Configure control system hardware - Design compliant communication networks - Review vendor technical submissions, design documentation, and engineering solutions - Participate in technical reviews, hazard assessments, and design verification activities - Support integration activities and ensure alignment between system architecture and operational requirements - Provide technical expertise throughout the design lifecycle - Support development of verification and validation strategies - Contribute to Factory Acceptance Testing (FAT), integration testing, and system validation activities - Ensure compliance with: - Nuclear industry standards - Functional safety requirements - Cybersecurity requirements - Internal engineering governance processes ## Qualifications **Req…