Senior Electrical, Control & Instrumentation (EC&I) Engineer
Leading Nuclear Services Company | Hybrid | Long-term Contract | Outside IR35 | Competitive Rate | Current SC/DV Clearance Required
The Opportunity
We're recruiting a Senior Electrical, Control & Instrumentation (EC&I) Engineer on a long-term contract basis to join a leading nuclear services company delivering critical programmes across the UK's nuclear sector. You'll produce design studies and manufacturing designs for complex nuclear projects, working within multi-disciplinary design teams and taking responsibility for equipment design delivery.
This is a hands-on technical role for an experienced EC&I engineer who wants to stay at the forefront of nuclear design. You'll work on challenging projects ranging from decommissioning and waste management through to broader nuclear consultancy, design and engineering services. You'll produce high-quality design documentation, manage technical risk, and ensure all designs meet rigorous nuclear industry standards and safety requirements.
The Company
The organisation has been delivering critical work programmes across the nuclear industry for over 40 years. They now have a broad customer base and provide a comprehensive spectrum of services across the entire nuclear project lifecycle—from expert consultancy and R&D, through engineering design, to site installation services and high-hazard physical decommissioning works. Work is delivered across their own offices, purpose-built facilities and nuclear sites throughout the UK.
What You'll Be Doing
EC&I Design & Delivery
1. Produce EC&I design concepts including Single Line Diagrams (SLDs), Block Control Diagrams (BCDs), cable schedules, layouts and specifications
2. Develop control system designs using relevant hardware and software knowledge
3. Produce designs that conform to British and European standards (BSEN 61508 & 61511) and client requirements
4. Ensure designs address operability, maintainability, and safety issues
5. Create and maintain technical files in accordance with Quality Management Systems
6. Produce designs that meet project programmes and budgets
Functional Safety & Technical Documentation
7. Design and produce functional safety documentation including Functional Design Specifications (FDS), Safety Instrumented System Design Documents (SIDD) and Functional Safety Plans
8. Produce design justification reports that demonstrate how designs mitigate all identified technical risks
9. Author engineering reports including basis of design, substantiation and calculation reports
10. Produce commissioning documentation such as Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT)
Technical Delivery & Quality
11. Check in-house and subcontract drawing documentation for compliance and technical accuracy
12. Manage subcontract suppliers and coordinate with external design resources
13. Interpret and create EC&I engineering drawings using AutoCAD
14. Produce technical specifications and works instructions that enable accurate manufacturing
15. Attend and witness commissioning activities as required
Technical Competency & Development
16. Maintain personal, professional and technical competency through continued professional development
17. Understand technical aspects of projects and develop engineering solutions with in-house specialists and supply chain partners
18. Consolidate and present design and engineering documentation for internal approvals and client presentation
About You
Essential Experience & Qualifications
19. Current SC/DV security clearance — you must hold current clearance to be considered
20. Relevant Engineering Degree, HNC or demonstrable equivalent engineering experience
21. Broad-based engineering experience in design and manufacturing
22. Design of electrical systems and low voltage control gear
23. Functional Safety expertise including BSEN 61508 & 61511 standards
24. Control systems design experience — hardware and software knowledge
25. EC&I design experience with proven track record on complex projects
26. Strong technical writing — able to produce detailed engineering reports and documentation
27. Competent MS Office user with strong capability in AutoCAD for engineering drawings
28. IOSH Managing Safely or Level 2 Health & Safety in the Workplace (or equivalent)
Desirable
29. Safety interlock design experience
30. HVAC control systems design experience
31. Experience in nuclear sector or high-hazard industries
32. Experience with design for manufacturing and commissioning
33. Subcontract supplier management experience
34. Experience producing commissioning documentation (FAT/SAT)
The Role in Practice
You'll work on a hybrid basis with 2 days every fortnight in the office, remaining days remote. Working on a 9-day working fortnight pattern. You'll join a multi-disciplinary design team and take responsibility for equipment design as delegated by the Integration Manager and/or Project Manager.
You'll work on a long-term contract basis, and the role can be outside the scope of IR35. This role offers genuine technical work on challenging nuclear projects, with the opportunity to develop your expertise in EC&I design within a supportive, collaborative environment that values technical excellence and professional development.