Overview

Job Title: Principal Mechanical EngineerLocation: Warrington, Bristol, Newbury or PrestonCompensation: Competitive + BenefitsRole Type: Full time / PermanentRole ID: SFAt Cavendish Nuclear we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Principal Mechanical Engineer.Role

This role will contribute to a high-impact public sector Defence Nuclear infrastructure initiative focused on enhancing operational resilience and sustainability across critical systems. The project involves complex mechanical systems integration, requiring innovative engineering solutions within a multidisciplinary team. Day-to-day, you’ll lead multidisciplinary engineering teams, oversee the delivery of complex technical solutions, and act as a key point of contact for customers, ensuring high standards of safety, quality, and performance while mentoring others and driving continuous improvement across projects.Lead multidisciplinary engineering teams to deliver high-quality technical solutions aligned with customer requirements and project scope.Supervise and mentor engineers and technical specialists, ensuring effective performance, development, and adherence to engineering standards.Act as a key liaison with customers, fostering strong relationships and ensuring transparent communication on technical progress and delivery.Oversee the production, review, and approval of engineering outputs, including calculations, specifications, and reports, ensuring compliance with relevant codes and standards.Champion health, safety, and environmental standards across engineering activities, promoting a culture of best practice and continuous improvement.This role is full time, 37 hours per week and provides hybrid working arrangements with 3 days in the office/onsite and 2 days working from home.Essential experience

Extensive experience leading multidisciplinary engineering teams and delivering complex technical projects within agreed scope, timeframes, and quality standards.Proven ability to supervise and mentor engineers and technical specialists, fostering professional development and ensuring high performance.Strong background in producing, reviewing, and approving detailed engineering outputs, including calculations, specifications, and technical reports.Demonstrated expertise in applying relevant procedures, codes, and standards to ensure compliance and technical integrity across engineering activities.Track record of effective customer engagement, including managing relationships, resolving technical issues, and supporting business development initiatives.Qualifications

Engineering degree (or equivalent qualification) in relevant engineering discipline, with significant demonstrable experience.Security Clearance: The successful candidate must be able to achieve and maintain Standard (BPSS) / Security Check (SC) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK.What we offer

Generous holiday allowanceMatched contribution pension scheme, with life assuranceAccess to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+Employee share schemeEmployee shopping savings portalPayment of Professional FeesReservists in the armed forces receive 10-days special paid leaveHoliday Trading is a benefit that allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This window opens February through to 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 their chosen organisation or registered charityExcellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.Cavendish Nuclear

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