Mechanical Equipment Engineer - Energy

Job Description Are 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 tomorrows world today!Job DescriptionALTEN UK is seeking a Mechanical Equipment Engineer to join our engineering team at Harwell. In this role, you will support the detailed design, commissioning, and testing of mechanical equipment for active nuclear facilities, ensuring safety, compliance, and operational excellence.This is a unique opportunity to work on complex, safety-critical systems, including pumps, valves, HVAC systems, pipework, and ancillary plant equipment, supporting post-operational testing and cleanout activities.Your main responsibilities will be:As a Mechanical Equipment Engineer, you will take responsibility for the design, installation, and testing of mechanical plant systems, working collaboratively with multidisciplinary engineering teams. Your main responsibilities will include:Lead detailed mechanical design activities, producing high-quality drawings, calculations, and specifications.Support works testing, commissioning, and verification of installed equipment performance.Troubleshoot and resolve mechanical system issues as they arise.Interface with electrical, instrumentation, process, and civil engineering teams.Ensure compliance with nuclear regulations, safety standards, and quality assurance requirements.Support post-operational activities, including plant cleanout and preparation for maintenance or decommissioning operations.Contribute to risk assessments, method statements, and safety documentation.Mentor junior engineers and support team development.You arePassionate about mechanical engineering in safety-critical applicationsDetail-oriented and methodical in design and verification activitiesConfident in communicating with multidisciplinary teamsAble to manage multiple priorities and workstreams independentlyCommitted to maintaining compliance and safety standardsQualificationsQualificationsExperience, skills and qualifications required:Degree in Mechanical Engineering or equivalent professional qualification5+ years experience in detailed mechanical design, ideally in nuclear, defence, or other regulated safety-critical industriesHands-on experience with mechanical plant equipment, including pumps, valves, HVAC systems, pipework, and ancillary plantFamiliarity with works testing, commissioning, and post-operational cleanout proceduresStrong understanding of mechanical design standards and industry regulations (e.g., ASME, BS, EN)Proficiency in CAD/design software (AutoCAD, Inventor, SolidWorks, or equivalent)Excellent communication skills and experience producing technical documentationAbility to work both independently and collaboratively in multidisciplinary teamsDesirable:Previous experience in nuclear or regulated environmentsKnowledge of plant maintenance, lifecycle management, or decommissioningExperience delivering projects in hybrid working environmentsAdditional 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)This role will require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.

Created: 2025-12-14