Senior Electrical, Control and Instrumentation Designer
Location: Flexible, UK + Hybrid Working Arrangement.
Compensation: Attractive Salary + Benefits.
Role Type: Full time / Permanent.
The role
As a Senior Electrical, Control and Instrumentation Designer (EC&I), you apply systems thinking and functional safety principles to solve real‑world engineering challenges across decommissioning and clean‑energy projects. Your work helps protect communities, supports national security, and accelerates low‑carbon ambitions, while giving you scope to deepen your expertise, mentor others and grow your career across varied, large‑scale programmes.
Day‑to‑day, you’ll be required to:
* Lead and produce detailed EC&I designs, drawings and documentation to nuclear standards.
* Collaborate with multi‑disciplinary teams to integrate safe, compliant design solutions.
* Engage with clients, regulators and suppliers to align requirements and resolve issues.
* Apply the functional safety lifecycle to determine and verify Safety Integrity Levels.
* Assure quality by checking, reviewing and improving deliverables against procedures.
This is a full‑time role working 37 hours per week. The role can be based at one of Cavendish Nuclear’s key locations including Warrington (Cheshire), Leicester (Leicestershire), Humberside (East Yorkshire), Cumbria (Westlakes), Preston (Lancashire), Newbury (Berkshire) or Bristol. Hybrid working patterns are available, with an expectation of three days per week on site.
Essential Experience
* Delivering safety‑related EC&I system design in regulated environments.
* Working knowledge of IEC 61508 and IEC 61511 and their practical application.
* Applying the nuclear functional safety lifecycle, including SIL determination and verification.
* Interfacing with safety case teams to ensure design intent and compliance.
* Communicating clearly with internal stakeholders and external customers.
Qualifications
* Essential: Higher National Diploma (or equivalent) in an engineering discipline.
* Considered: BTEC Level 3 (or equivalent) in an engineering discipline with relevant experience.
* Preferred: Degree in Electrical, Control or Instrumentation Engineering; professional registration or working toward it.
Security Clearance
Successful candidate must be able to achieve and maintain Security Check (SC) security clearance for this role. Further details available at United Kingdom Security Vetting clearance levels – www.gov.uk.
Benefits
* Generous holiday allowance.
* Matched contribution pension scheme, with life assurance.
* Access to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+.
* Employee share scheme.
* Employee shopping savings portal.
* Payment of Professional Fees.
* Reservists in the armed forces receive 10‑day special paid leave.
* Holiday Trading allows UK Cavendish employees to buy additional leave or sell up to one working week of annual leave from their entitlement (available February through March annually).
* ‘Be Kind Day’ enables employees to take one working day’s paid leave a year (or equivalent hours) to undertake volunteering work with chosen organisations or registered charities.
* Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial well‑being.
We are a disability confident committed employer.
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