Senior Nuclear Thermal Hydraulic Consultant

Job Title: Senior Nuclear Thermal Hydraulic ConsultantLocation : Manchester or Bristol (Hybrid)Salary: £70k - £80k plus benefitsJob InformationOur thermal hydraulics specialists sit at the heart of our work in nuclear safety, design, and assurance. We are seeking an experienced Senior Nuclear Thermal Hydraulics Consultant to help shape critical decisions, support safety cases, and strengthen the next generation of nuclear capability.Your work will help to:Tackle safety-critical engineering challengesSupport confident regulatory and design decisionsStrengthen the UK's civil nuclear capabilityDeliver high-quality, trusted consultancy advice to our clientsAbout Our Work in NuclearWith extensive experience supporting the UK nuclear sector, our multidisciplinary teams work across civil nuclear operations, new-build programmes and decommissioning, helping clients meet exacting technical and regulatory requirements.Our thermal hydraulics specialists work closely with safety, systems, and reactor engineers, providing insight into complex plant behaviour and supporting clients through design, justification, and regulatory engagement. We empower our consultants to take ownership of their work, build deep technical expertise, and have visible impact.Why Join Us?Work on nationally significant nuclear programmes with real societal impactTake ownership of technically challenging work and client deliveryDevelop your career in a supportive, technically ambitious consultancy environmentBe part of a collaborative team shaping the future of nuclear engineering in the UKWhy This Role?As a Senior Nuclear Thermal Hydraulics Consultant, you will apply advanced analytical techniques and modelling tools to understand and explain complex thermal-hydraulic behaviour in nuclear systems. You will contribute across the full consultancy lifecycle, from technical analysis and interpretation through to client engagement and business development.Taking the LeadYou will manage technical work packages, engage directly with clients, and support project delivery, while collaborating with supportive colleagues and mentoring and guiding less experienced engineers.Variety of WorkOur consultants typically work on multiple projects at once, ranging from short, focused studies to long-term programme support across the nuclear lifecycle.Growing CapabilityYou will contribute to winning work, client discussions, and the continued growth of our thermal-hydraulics capability across existing and emerging nuclear programmes.Key Responsibilities Include:Developing and maintaining thermal-hydraulic models of nuclear plant systems using industry-standard codesAnalysing fault sequences, transients, and system behaviours to inform design decisions and nuclear safety casesProviding authoritative interpretation of model results and underlying physical phenomenaSupporting model verification, validation, and best-practice applicationCommunicating complex technical outputs clearly and concisely to clients, regulators, and internal stakeholdersWhat We're Looking ForTechnical Experience:Strong understanding of fluid flow, heat transfer, thermal hydraulics, and multiphase flowsA degree in Engineering, Physics, Applied Mathematics, or a related discipline, or equivalent relevant experienceDemonstrable experience in nuclear thermal hydraulics supporting nuclear plant design and/or operations (perhaps using codes such as RELAP, GOTHIC, CATHARE, TRACE, VIPRE, S5K)Experience of transient and fault analysis within nuclear safety contextsAbility to interpret, validate, and clearly explain complex modelling outputsPersonal and Consultancy Skills:Ability to independently manage and deliver work to meet client requirementsExperience contributing to proposal writing, client liaison, and business developmentStrong communication skills, with the ability to engage effectively through meetings, presentations, written reports, commercial bids, and technical discussionsDue to the nature of the work undertaken, candidates will be required to undergo pre-employment screening and must be able to satisfy clearance criteria for UK National Security Vetting.BenefitsOur people are central to our success. We offer a comprehensive benefits package designed to support your wellbeing, development, and work-life balance, including:Competitive salary with annual reviews25 days' holiday, with the option to buy up to five additional daysFlexible and hybrid working arrangementsEnhanced parental benefitsCompany pension schemeTargeted professional development and career supportLife assurance and private healthcare membershipBonus scheme linked to company performancePaid membership fees and support towards professional accreditationCycle to Work scheme and season ticket loanA range of flexible benefits, tailored to your personal requirementsTPBN1_UKTJ