Senior Engineer - Mechanical Services

Location:

Mainly remote with 2 days per month onsite in Plymouth

Duration: 12 Month Contract

IR35:
Inside

Security Clearance:
Can start on BPSS but must go through full SC process

As a Senior Mechanical Engineer
, you will lead and assure the delivery of complex mechanical design packages, taking ownership of projects from concept through to handover. Operating with a high degree of autonomy, you will provide technical leadership, manage multidisciplinary interfaces, oversee supplier engineering activities, and ensure all design outputs meet stringent safety, quality, schedule, and cost requirements.

This role offers the opportunity to work on nationally significant infrastructure projects within one of the most highly regulated engineering environments in the UK.

• Act as the Responsible Engineer and technical lead for assigned work packages.
• Own and manage technical requirements, design baselines, and engineering deliverables.
• Review and approve calculations, drawings, specifications, Bills of Materials, method statements, test documentation, and as-built records.
• Lead design optioneering activities and implement lessons learned to improve engineering outcomes.
• Provide technical guidance to multidisciplinary teams, suppliers, and subcontracted design houses.

• Develop and manage engineering delivery plans, resource requirements, and programme schedules.
• Monitor progress against project milestones and drive recovery actions where required.
• Manage technical risks, assumptions, issues, and change control processes.
• Support forecasting, cost management, and technical input into commercial activities.

• Ensure compliance with relevant legislation, standards, engineering codes, and business procedures.
• Lead design reviews, HAZIDs, constructability reviews, and ALARP assessments.
• Fulfil CDM Designer responsibilities and ensure risks are eliminated or reduced through design.
• Maintain robust configuration control and technical governance throughout the project lifecycle.
• Coordinate engineering activities across Mechanical, Civil, Structural, EC&I, Construction, Commissioning, Operations, and Safety teams.
• Manage supplier technical submissions, design integration, factory acceptance testing, concessions, and technical queries.
• Act as a key interface between engineering, project management, and client stakeholders.
• Provide technical leadership and mentoring to engineers and designers.
• Support competence development and contribute to team capability growth.
• Promote engineering excellence and continuous improvement across the project.

You will be an experienced mechanical engineer with a strong background in complex engineering projects, ideally within nuclear, defence, marine, or other highly regulated industries.

• Extensive experience in the design and implementation of mechanical systems and services
  , particularly fluid systems such as:
• Water and piping systems
• Hydraulic systems
• Pneumatic systems
• Strong understanding of requirements management and technical substantiation within complex engineering environments.
• Experience supporting the design, construction, operation, maintenance, refit, or repair of major infrastructure, marine, defence, or nuclear facilities.
• Proven ability to manage engineering design through the full project lifecycle.
• Experience leading multidisciplinary engineering teams and managing technical interfaces.
• Knowledge of engineering safety practices, design assurance, and regulatory compliance.
• Experience with project planning, estimation, budgeting, and resource management.
• Ability to review and approve engineering calculations, drawings, specifications, and technical documentation.
• Experience conducting HAZIDs, design reviews, and ALARP assessments.
• Familiarity with configuration management and document control processes.
• Strong stakeholder management and supplier coordination skills.
• Proficiency with engineering software, CAD systems, BIM/Common Data Environments (CDE), document management systems, and Microsoft Office applications.
• Nuclear industry experience.
• Experience working on submarine, dockyard, marine, defence, or naval infrastructure projects.
• Knowledge of safety case development and nuclear regulatory processes.
• Understanding of LOLER, PUWER, CDM Regulations, and associated engineering legislation.
• Chartered Engineer status or working towards professional registration.

• Degree (or equivalent qualification) in Mechanical Engineering or a related discipline.
• Chartered Engineer (CEng) status preferred.
• Membership of a relevant professional engineering institution desirable.
• Candidates with significant demonstrable experience and eligibility for IEng or CEng registration will also be considered.