Design Engineer

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834.

Together, we can create new business opportunities and more sustainable future that we can all be proud of.

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

At Wärtsilä Defence Solutions Limited (WDSL), we support our customers by delivering integrated systems and products that improve lifecycle efficiency, reduce costs, and minimise risk. Our ambition is to enable a cleaner, more sustainable future through advanced engineering and technology.

We are now looking for a Mechanical Design Engineer to join our Design Engineering team in Havant, UK
. This role offers the opportunity to work on naval and commercial marine projects, with a strong focus on defence applications.

You will be responsible for the design, analysis, and lifecycle support of marine shaftline seal systems. The role combines detailed engineering design, calculation work, supplier collaboration, and customer support.

• Produce General Arrangement (GA) drawings and detailed designs for shaftline seal installations
• Develop design solutions that meet technical and project requirements
• Ensure designs comply with engineering standards and data control processes

• Perform and support engineering calculations related to seal performance and system behaviour
• Contribute to technical assessments and design validation activities

• Support specification and configuration of internally manufactured components
• Liaise with suppliers and manufacturers to ensure technical requirements are met
• Provide technical support during installation, commissioning, and servicing of seal assemblies
• Assist customers throughout the product lifecycle with technical expertise

• Deliver high‑quality engineering documentation on time
• Maintain accurate product data and records
• Support continuous improvement of engineering processes and tools

• Degree in Mechanical Engineering (or equivalent)
• Experience in mechanical design and engineering analysis
• Proficiency in CAD tools (e.g. Solid Edge or similar)
• Ability to effectively communicate with both internal and external customers.
• Strong analytical and problem‑solving skills.
• Excellent attention to detail with a structured and methodical approach to work tasks.
• Fluency in the English language, both verbal and written.
• Competency in the use of normal office software such as MS Excel, Word and Outlook.

• Experience in marine equipment, seals, or bearing
• Knowledge of seal design or mechanical calculations
• Familiarity with shock calculations
• Experience with MathCAD, MATLAB, or similar tools
• Understanding of composite materials
• Marine industry experience (preferred)

Candidates must be eligible to obtain the required level of security clearance for this role.

• Work on cutting‑edge marine and defence engineering projects
• Be part of a global organisation focused on sustainability and innovation
• Access ongoing training, development, and career growth opportunities