Senior Mechanical Engineer

Senior Mechanical Engineer
Full-time, Permanent  
Westhill, Aberdeenshire

Please note that this role requires security checks.

The Role:

To provide engineering design solutions and through life engineering and service support to the JFD product range and systems, working as a technical lead for the engineering team, workload can vary from new product design to meet client or internal specifications through to supporting an existing client’s request to upgrade, change or support equipment in the field.
This role ensures design integrity, and delivering high-quality engineering solutions that meet performance, safety, and manufacturing standards.

What you'll be doing:

Provide engineering design input for new and existing systems and products, while supporting the current product/systems range by addressing technical queries.
Ownership of engineering delivery.
Collaborate with internal departments including sales, supply chain, and production to deliver technically sound and commercially viable solutions.
Engage with clients, suppliers, and subcontractors to offer technical guidance and ensure solutions are robust and meet specifications and project requirements.
Create and manage part structures, part numbers, and bills of materials, while sourcing appropriate components and materials as needed.
Generate and review engineering documentation, such as specifications, proposals, assembly instructions, test procedures, certifications, and detailed manufacturing drawings and documentation.
Lead the implementation of design changes, ensuring updates are accurately reflected and communicated across relevant documentation and teams.
Ensure engineering solutions are delivered on time and within budget, complying with internal processes and standards and external regulations.
Act as technical approver for engineering drawings and documentation generated.
Supports and develops team capability through hands-on mentorship.

What we're looking for:

Mechanical Engineering degree or equivalent industry background
Extensive experience in generating design calculations, specifications, procedures, certification and reporting.
Experience manufacturing techniques and gas and fluid systems
Proficient in using Product Lifecycle Management (PLM) systems for the creation and storage of engineering documentation and packages
Strong understanding of engineering testing methods, including planning and execution
Strong understanding of mechanical systems design and service support requirements
Familiarity with key design standards relevant to mechanical engineering
Exposure to industry codes and regulations including Lloyd’s Register, DNV, ABS, DEFSTAN, and MIL-STD would be advantageous
Knowledge of Pressure Vessel design skills using PD5500, ASME VIII, EN 13445 would be advantageous
Hands-on experience with engineering analysis tools such as ANSYS Workbench, MathCAD, or Finglow is advantageous
Experience in CAD software, particularly Solid Works or AutoCAD would be advantageous
Diving qualifications or knowledge of diving would be advantageous

Why join us?

Early finish on Fridays
Competitive salary and benefits package aligned with experience (Private Medical Insurance, Life Assurance, Cycle to work scheme, Company Pension, etc.)
Clear pathways for career development and organisational visibility
Inclusive and supportive culture that values individual contributions
Meaningful work with impact across safety, innovation, and global operations

About Us:

James Fisher is a global engineering services company operating across Energy, Defence, and Maritime Transport. With a strong heritage in maritime operations, we now deliver innovative solutions in challenging environments. Our One James Fisher strategy is focused on building a unified, sustainable business within the Blue Economy, driving progress through technology, expertise, and collaboration.  
Visit our website at:
Home | James Fisher and Sons plc
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About us | James Fisher and Sons plc
James Fisher Defence (JFD), part of the James Fisher Group, is a global leader in underwater capability, delivering cutting-edge diving, submarine…