Position Available: Principal Stress Engineer

Location: Hertfordshire

Salary: £50,000 - £60,000 (DoE) + Benefits

Experience needed: We're looking for senior-level structural analysts with a proven track record in delivering complex mechanical analysis packages. You'll be confident in both classical hand calculations and CAE tools, and capable of guiding design solutions across multi-disciplinary engineering teams.

About the role:

An exciting opportunity has arisen for a Principal Stress Engineer to lead structural and thermal analysis activities on a next-generation complex defence system. This role is vital to ensuring the integrity and performance of mechanical solutions, from early-stage concept through to in-service support.

Working collaboratively with mechanical, systems, and design engineers, you'll lead structural design validation, using a broad range of techniques from static and dynamic stress analysis to impact modelling and fatigue assessments.

Key Responsibilities:

• Plan, estimate, and deliver mechanical analysis work packages throughout the product lifecycle
• Perform structural assessments using classical hand calculations and CAE tools (Hyperworks highly desirable)
• Interpret results to influence design decisions and verify mechanical performance
• Lead or contribute to technical reviews, presenting findings to stakeholders across functions
• Mentor junior engineers and support knowledge sharing across the team
• Drive improvements to methods, tools, and processes within the mechanical analysis capability
• Collaborate across departments including Design, Systems, and Manufacturing
• Support test planning and qualification activities including fault investigation and load derivation

What we need from you:

• Degree in Mechanical, Aerospace, or Structural Engineering (or equivalent experience)
• Strong technical background in structural analysis within a complex engineering environment
• Proven ability to deliver technical work packages independently and on time
• Effective communicator with experience preparing detailed technical reports and presenting to senior stakeholders
• Passion for mentoring, improving processes, and working across disciplines

If you would like to know more details about the position or want to register your interest, hit apply below. We'd love to hear from you!