Company DescriptionAre you passionate about engineering? Do you want to make a difference? You could be one of our 54k+ colleagues in over 30 countries working on inspiring projects in the most innovative companies. Join us and start building tomorrow's world today!Job DescriptionWhat will you be doing?ALTEN UK is seeking skilled and motivated HVAC Designers / 3D Modelers to support the HPC Nuclear Island project, contributing to one of the most significant low-carbon energy programmes in the UK. This design-focused role involves the 3D modelling and integration of HVAC systems within a nuclear facility, offering you the opportunity to work on high-integrity, safety-critical infrastructure in collaboration with international teams.Your main responsibilities will be:Design and model HVAC systems in 3D using SolidWorks, in accordance with nuclear industry standardsDevelop and maintain accurate models, layouts, and assemblies for HVAC networks within the facilityCollaborate closely with mechanical and multidisciplinary engineering teams to ensure integration of systemsGenerate supporting documentation including detailed drawings, bills of materials (BoMs), and installation guidanceConduct design reviews and address technical queries or non-conformities throughout the project lifecycleEnsure all work complies with safety, quality, and regulatory requirementsTravel to international sites (including Finland and the US) for training, coordination, and design alignment activitiesYou are...Passionate about engineeringDetail-oriented and quality-drivenA strong communicator and effective team collaboratorDesirable Skills:Previous experience in the nuclear, energy, or heavy infrastructure sectorsFamiliarity with BIM workflows and product data management (PDM) systemsAbility to convert between metric and imperial units for cross-border coordinationQualificationsExperience, skills and qualifications required:3-5 years of experience in mechanical design and 3D modelling, preferably within regulated or industrial environmentsProficient in SolidWorks, with a strong foundation in HVAC layout and system designFamiliarity with HVAC principles, mechanical standards, and system integration constraints in complex facilitiesAbility to develop and manage detailed HVAC system documentation including models, drawings, and BoMsExperience working in large-scale infrastructure or energy sector projectsComfortable working in a collaborative, multidisciplinary environmentWillingness to travel internationally for project support and trainingAdditional InformationWhy join us? We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently. Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities. We offer incredible opportunities to join inspiring projects in the most innovative companies. We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential. Join our passionate team and start building tomorrow, today! In short you get: A personalised career path and a rewarding management style A chance to work on the most exciting engineering projects and technologies along with Premium CustomersA huge diversity of engineering projects and industriesA competitive salaryPrivate Medical & Travel InsurancePension SchemeCycle-to-work Scheme among many additional benefitsSocial atmosphere, regular gatherings, and team buildingsFlexible way of working (role dependent)Videos To Watchhttps://www.youtube.com/watch?v=aRJpU_wUYys