Principal Engineer (Mechanical SME)

Our client, a leading organisation in the Defence & Security sector, is currently seeking a Principal Engineer (Mechanical SME) to join their team. This is a permanent position focusing on technical excellence, problem-solving, and technical review, ensuring mechanical engineering standards, designs, and decisions support business performance, safety, and innovation.

Key Responsibilities:

Act as the recognised Subject Matter Expert (SME) for all mechanical engineering matters
Provide high-level technical guidance across multiple projects and programmes
Lead complex problem-solving and root cause analysis for critical engineering issues
Review and approve mechanical designs, calculations, and technical documentation
Assist in defining, maintaining, and improving mechanical engineering standards, processes, and best practices
Support design reviews, risk assessments, and engineering assurance activities
Provide expert input during bids, proposals, and project planning
Mentor and coach engineers to build mechanical engineering capability across the business

Job Requirements:

Extensive experience in mechanical engineering within a relevant industry (e.g. defence, engineering, manufacturing)
Proven track record of solving complex engineering challenges
Deep technical expertise in mechanical design, analysis, and materials
Strong understanding of engineering standards, compliance, and safety requirements
Excellent problem-solving and analytical skills
Strong communication skills, able to translate complex technical concepts clearly
Degree in Mechanical Engineering or related discipline (or equivalent experience)
Chartered Engineer status (or working towards) desirable

Benefits:

Opportunity to work on a variety of interesting and challenging projects
Professional development and training opportunities
Supportive and collaborative work environment
Influential role with high technical authority
If you are a highly experienced Principal Engineer with deep expertise in mechanical design and engineering, we would love to hear from you. Apply now to join our client's dynamic and talented team
Only candidates based in UK and eligible to work in UK are allowed