Mechanical Design Engineer

Theo James Recruitment; Sedgefield; On-site; GBP 30,000 - 50,000; Full time

Job summary

A leading engineering recruitment firm in the UK is seeking a Mechanical Design Engineer to lead the mechanical development of advanced frequency products. This role involves creating detailed 3D CAD models, designing precision components and conducting structural analyses to ensure high performance. The ideal candidate will possess a degree in Mechanical Engineering, strong 3D CAD skills, and hands-on experience with FEA/CFD. Join a rapidly growing technology company and contribute to cutting-edge engineering projects.

Benefits

Up to 8% pension contribution

Private medical care

1 charity day per year

Qualifications

• Degree in Mechanical Engineering or equivalent.
• Strong experience with 3D CAD tools, especially SolidWorks.
• Hands-on experience with FEA/CFD tools.

Responsibilities

• Own mechanical development of advanced frequency products.
• Create detailed 3D CAD models and precision component designs.
• Conduct thermal and structural analysis for reliability.

Skills

3D CAD capability

Precision mechanical assembly design

FEA/CFD experience

Knowledge of manufacturing processes

Collaboration in engineering environments

Education

Degree in Mechanical Engineering (BEng/MEng or equivalent)

Tools

SolidWorks

Job description

Job Title: Mechanical Design Engineer

Location: £30,000 - £50,000

Benefits: Up to 8% pension contribution, 4 x death in service, 1 charity day per year, private medical care, salary sacrifice after probation.

Working Hours: 37 hours per week

Job Description

As a Mechanical Design Engineer, you will:

• Take full ownership of the mechanical development of advanced frequency products. This involves creating detailed 3D CAD models, selecting suitable materials, designing precision components, and performing thermal and structural analysis to ensure high reliability and performance.
• Work closely with electronics, systems, and manufacturing teams, supporting projects from concept through to prototype, validation, and final release.
• Design housings, heatsinks, waveguide structures, test fixtures and other precision assemblies.
• Carry out CFD and FEA analysis, validate assumptions through testing, and support both DFM/DFA activities and production-scale manufacturing.
• Contribute to environmental testing, reliability assessments, supplier support, and continuous improvement initiatives.
• Play a crucial role in delivering robust, high‑quality engineering solutions for mission‑critical applications.

Skills & Experience

• Required:
  • Degree in Mechanical Engineering (BEng/MEng or equivalent)
  • Strong 3D CAD capability (SolidWorks preferred)
  • Experience designing high‑precision mechanical assemblies
  • Understanding of manufacturing processes (CNC machining, casting, additive manufacturing)
  • Hands‑on FEA/CFD experience
  • Strong knowledge of GD&T and engineering drawings
  • Ability to collaborate in cross‑disciplinary engineering environments
  • Familiarity with PDM/PLM systems

Why Should You Apply?

• Work on cutting‑edge engineering projects in a rapidly expanding technology company
• Access world‑class tools, facilities, and technical expertise
• Develop your skills while contributing to high‑impact, mission‑critical innovations
• Be part of a supportive team where your work genuinely makes a difference

The Company

Join a pioneering, fast‑growing engineering business specialising in advanced technology for high‑performance communication systems. This organisation works at the forefront of next‑generation connectivity, supporting major programmes across aerospace, defence, space, and critical communications. With a strong heritage in innovation and engineering excellence, the company continues to expand rapidly, offering exciting opportunities for ambitious engineers who want to shape the future of high‑frequency technology.

You’ll be part of a collaborative, forward‑thinking environment where complex challenges are solved through cutting‑edge design, precision engineering, and cross‑functional teamwork.