Aerospace Mechanical Design Engineer – Precision Rotating

ALTEN; Luton; On-site; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Private Medical Insurance

Employee assistance programme

Life insurance

Team events

Flexible working

Career development

Job summary

ALTEN is seeking an experienced Mechanical Design Engineer to work on an aerospace programme in the rotating equipment domain. Based in Luton, the role is on-site, with a strong emphasis on high-precision mechanical components and assemblies designed for reliability in demanding environments.

You will create 3D CATIA V5 models, produce 2D drawings, and apply GD&T while selecting suitable steel and aluminium alloys.

Qualifications

• Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
• Experience in aerospace industry.
• Design experience with gearboxes, electric motors, generators, or rotating machinery.
• Experience designing shafts, bearings, gears or precision rotating components.
• Knowledge of tolerance stack-ups and high-precision design.
• Understanding of machining, heat treatment and surface finishing.
• Experience in safety-critical or highly regulated environments.
• Strong CAD skills and ability to interpret drawings.

Responsibilities

• Design high-precision mechanical components and assemblies for aerospace.
• Create 3D CATIA V5 models and assemblies.
• Prepare and review 2D manufacturing drawings.
• Apply GD&T to define functional tolerances.
• Define micrometre-level tolerances for precision parts.
• Select materials like steel and aluminium alloys.
• Assess manufacturability and design for manufacture.
• Support design reviews across product lifecycle.
• Coordinate with Stress, Materials, Manufacturing, QA, and Systems teams.
• Assist manufacturing with issue resolution.
• Review drawings and specifications.
• Support design changes and improvements.
• Ensure designs meet aerospace quality and safety requirements.

Skills

Mechanical design

3D modelling

GD&T

Problem solving

Attention to detail

Education

Bachelor’s or Master’s degree in Engineering

Equivalent military experience

Tools

CATIA V5

Job description

ALTEN is seeking an experienced Mechanical Design Engineer to work on an aerospace programme in the rotating equipment domain. Based in Luton, the role is on-site, with a strong emphasis on high-precision mechanical components and assemblies designed for reliability in demanding environments.

You will create 3D CATIA V5 models, produce 2D drawings, and apply GD&T while selecting suitable steel and aluminium alloys.