Senior Building Services & HVAC Engineer

Senior Building Services & HVAC Engineer Duration: 12 Months Location: Capenhurst, Chester CH1 Reports to: Site Services Senior Mechanical Engineer (Line) / Site Services Engineering Manager Rate: £60-£70 per hour IR35: Inside pay via Umbrella Role Purpose The Senior Building Services & HVAC Engineer is responsible for the design, specification, assessment, and delivery of building services and HVAC systems supporting Urenco's facilities. The role will ensure that systems are designed, installed, commissioned, operated, and maintained in accordance with nuclear safety requirements, regulatory expectations, company standards, and industry best practice. The postholder will provide technical leadership across the project lifecycle, including concept development, detailed design, safety case support, asset management, system upgrades, and operational support while ensuring compliance with nuclear licensing and regulatory requirements. Technical Leadership Lead the design and development of HVAC and building services systems for nuclear facilities. Provide technical authority and specialist engineering support for ventilation, heating, cooling, air conditioning, pressurisation, filtration, and containment systems. Produce and / or approve engineering calculations, design substantiation, specifications, reports, and technical documentation. Ensure designs comply with applicable legislation, nuclear standards, and company engineering procedures. Undertake design reviews and provide independent verification of engineering deliverables. Nuclear Safety & Compliance Support the development of nuclear safety cases and engineering substantiation. Ensure designs satisfy safety functional requirements and ALARP principles. Assess impacts of design changes on nuclear safety, plant operations, and regulatory compliance. Interface with internal nuclear safety teams and external regulators where required. Maintain compliance with Urenco's Site Licence Conditions and applicable nuclear industry standards. Project Delivery Provide engineering leadership in their specialism throughout project delivery phases from concept to commissioning and handover. Develop engineering work packages, scopes of work, and technical requirements. Manage engineering risks, assumptions, interfaces, and be the point contact fto resolve technical queries. Support procurement activities including technical bid evaluations and vendor assessments. Review contractor and supplier designs to ensure compliance with project requirements. Operations & Asset Management Support operational facilities through troubleshooting and technical investigations. Lead condition assessments and lifecycle reviews of HVAC and building services assets. Develop maintenance strategies and equipment replacement plans. Support plant modifications, upgrades, and continuous improvement initiatives. Stakeholder Engagement Liaise with multidisciplinary engineering teams including mechanical, electrical, civil, process, and safety case engineers. Engage with project managers, operations personnel, maintenance teams, and external suppliers. Typical Systems The role may at times require responsibility for: Nuclear containment ventilation systems Safety-significant HVAC systems Air handling units (AHUs) Chilled water and cooling systems Domestic heating and hot water systems Industrial ventilation and extraction systems HEPA filtration systems Cleanroom and controlled environment systems Building management systems (BMS) Smoke control and fire engineering interfaces Compressed air and associated building services infrastructure Qualifications Degree in Mechanical Engineering, Building Services Engineering, or related discipline. Strong understanding of HVAC and building services engineering principles. Nuclear baseline personnel security clearance or the ability to obtain security clearance. Desirable Chartered Engineer (CEng) with IMechE, CIBSE, or equivalent. Nuclear industry experience. Experience within highly regulated industries such as nuclear, defence, pharmaceutical, chemical, rail, or energy sectors. NEBOSH or equivalent safety qualification. Experience Significant experience in HVAC and building services design and engineering. Experience producing engineering calculations, design specifications, and technical reports. Experience supporting complex engineering projects through the full project lifecycle. Knowledge of relevant building services regulations and standards. Proven ability to manage technical interfaces and multidisciplinary teams. Desirable Experience supporting nuclear facilities, laboratories, or safety-critical environments. Experience of safety case substantiation and regulatory compliance activities. Familiarity with ONR expectations and nuclear licence conditions. Experience in plant modifications and asset management programmes. Technical HVAC system design and analysis. Ventilation and containment engineering. Heat load calculations and equipment sizing. Airflow modelling and pressure regime design. Filtration systems including HEPA applications. Building Services Engineering standards and guidance. Relevant British Standards, ISO standards, and industry codes. Engineering risk management and configuration control. Nuclear safety principles and regulatory compliance. Key Competencies Technical leadership. Sound engineering judgement. Problem solving and analytical thinking. Efective communication and stakeholder management. Project and programme delivery focus. Safety-conscious decision making. Attention to detail and quality assurance. Ideal Candidate Profile A highly capable Chartered Mechanical or Building Services Engineer with extensive HVAC experience in a regulated environment, able to lead complex engineering activities whilst ensuring nuclear safety, regulatory compliance, and operational excellence across a diverse portfolio of nuclear facilities and infrastructure. Senior Building Services & HVAC Engineer TPBN1_UKTJ