Principal Mechanical Engineer

Protecting What Matters. Powering the Future of Naval Technology.

Ultra Maritime is a global leader in advanced maritime defence solutions. We operate at the forefront of innovation, delivering technologies that protect lives, secure nations, and enable a safer, more sustainable world.

Key Responsibilities
As a Principal Mechanical Engineer and part of a multi-disciplinary team, you will:

• Define and manage mechanical architecture, system and sub-system requirements, ensuring validation and verification.
• Develop, document, and deliver robust mechanical solutions for complex systems using our engineering toolsets.
• Create and peer-review technical artefacts, including design documentation, data packs, analysis reports, plans, and procedures in line with our product development framework.
• Analyse and document predicted mechanical behaviours and performance.
• Develop mechanical test solutions and procedures to support product verification.
• Lead mechanical integration, verification, and acceptance testing, collecting and presenting evidence as required.
• Prepare and present technical solutions and estimates to internal and external stakeholders.
• Provide in-service and production support to customers.
• Act as Project Engineering Lead (PEL) and/or Work Package Manager (WPM) on projects when required.
• Contribute to continuous improvement of mechanical engineering processes and tools.
• Support bids and proposals with technical input, estimates, and plans.
• Adhere to company engineering processes and procedures.
• Coach and mentor junior engineers.

Skills, Qualifications & Experience
Required:

• Degree-level education or equivalent experience.
• Experience across the full project lifecycle, developing mechanical solutions against defined requirements.
• Extensive experience in mechanical design and documentation using MCAD, MCAE, PLM, and ERP toolsets (e.g., Creo, Autodesk Inventor, Windchill, IFS).
• Strong understanding of mechanical engineering principles, including material selection, assembly techniques, and manufacturing processes.
• Work package management experience.
• Experience preparing for and participating in Product Design Reviews.
• Hands-on experience designing complex systems involving multiple engineering disciplines, with awareness of associated challenges and risks.
• Proven ability to deliver reliable solutions on time and within budget.
• Security clearance at SC level or eligibility to obtain it.

Desired:

• Experience in mechanical integration, verification, and validation activities.
• Background in designing products for the Defence domain (preferably Maritime).
• Familiarity with mechanical design analysis techniques and tools (e.g., trade studies, calculations, modelling, simulation).
• Ability to prioritise and execute tasks effectively in a deadline-driven environment.

What We Offer
We believe in supporting our people with flexibility, rewards, and opportunities for growth. Here are some of the benefits you can enjoy:

• Optional 9-day fortnight for better work-life balance
• Time Off in Lieu (TOIL)
• Flexible working hours
• Early finish on Fridays
• Annual bonus
• Hybrid working options for certain roles
• Casual dress policy
• 25 days holiday plus Christmas shutdown
• Option to buy or sell holiday
• Access to private healthcare, dental, and critical illness cover via salary sacrifice
• Hapi with discounts at over 200 online stores
• Life cover at 4x annual salary
• Generous pension scheme starting at 5% employer / 4% employee contributions (with flexibility to increase your contribution up to 70%)

Security Requirements

This role requires you to undergo Baseline Personnel Security Standard Check (BPSS) as a minimum and some roles will require further national security vetting checks.

In line with Baseline Security requirements, candidates will be asked to provide evidence of identity, eligibility to work in the UK and employment and/or education history for up to three years. Some vacancies may require full Security Clearance which can require further evidence to be provided. For further details of the evidence required to apply for Baseline and Security Clearance please refer to the United Kingdom Vetting Service (UKSV).

What can you expect from us?

More than just a job, we offer a mission. More than just a workplace, we provide the opportunity to protect lives, advance technology, and shape the future of maritime security. As an employee of Ultra Maritime, you will receive:

• Optional 9 day fortnight
• TOIL
• Flexible working hours
• 1pm finish on a Friday
• Annual bonus - dependent on level. Non-managers = 5% and Managers = 10% for example
• Hybrid working for certain job roles.
• Casual dress
• 25 days holiday
• Christmas shut down - use three days of annual leave to cover this
• Option to buy or sell holiday.
• Option to purchase private health care, dental, critical illness etc via salary sacrifice.
• Reward hub - discounts at over 200 online stores
• 4 x annual salary life cover
• Pension starting at 5% Employer / 4% Employee. You can select your employee contribution level from 4% to 70% (providing this sacrifice does not cause your salary to drop below the National Minimum Wage/ National Living Wage).

Our commitment to diversity and inclusion

Ultra Maritime embraces the power of diverse perspectives to fuel innovation. We strive to build an open, inclusive workplace where ideas flourish and every individual can make a meaningful impact. If you need any reasonable adjustments during the recruitment process, please let the recruitment lead managing your application know.

Together, we deliver cutting-edge solutions that safeguard our oceans and secure a safer world.

Our partnership with Morson Edge

Ultra Maritime is partnering with a third-party recruitment provider, Morson Edge (part of the Morson Group), to manage this hiring process. In accordance with UK employment law and UK GDPR, by applying for this role, you consent to your CV and application details being shared with Morson Edge for recruitment purposes.

Both Ultra Maritime and Morson Edge will process your data in accordance with their respective Privacy Policies (Ultra Maritime Privacy Policy and Morson Group Privacy Policy). These policies outline how your information is used, stored, and retained. You have the right to withdraw your consent at any time by contacting Ultra Maritime or Morson Edge directly, as detailed in their Privacy Policies.

Company: Ultra Maritime