Senior Mechanical Designer (Autodesk Inventor) – Hybrid

PAE Government Services Inc.; Newcastle upon Tyne; Hybrid; GBP 55,000 - 90,000; Full time

Job summary

Amentum is seeking a Senior Mechanical Designer to support modular project delivery and complex multi-disciplinary engineering designs. You will develop accurate 3D models, assemblies, BOMs and installation data for mechanical, electrical, piping and instrumentation modules across UK sites.

The role requires hands-on Autodesk Inventor experience, a strong grasp of fabrication processes, and the ability to coordinate across diverse teams.

Qualifications

• Intermediate to advanced Autodesk Inventor capability and 3D modelling.
• Strong mechanical design and detailing experience.
• Experience with piping design and layout.
• Experience designing fabricated structures and frames.
• Understanding welding and fabrication methods.
• Ability to interpret engineering drawings and P&IDs.
• Experience applying DfM and constructability principles.
• Ability to work in multi-disciplinary teams.

Responsibilities

• Develop 3D models and engineering designs with Inventor.
• Manage assemblies, weldments and equipment layouts.
• Create piping layouts and supporting structures.
• Produce manufacturing and installation drawings.
• Interpret requirements and translate into design solutions.
• Develop modular designs including C&I equipment.
• Apply DfM / DfI principles for fabrication and transport.
• Collaborate with other disciplines to resolve interfaces.
• Conduct design reviews and Navisworks coordination.
• Maintain model properties and design data.
• Manage CAD files and revisions in Vault.
• Support change and file-reference management.
• Ensure designs consider fabrication tolerances and welds.

Skills

Autodesk Inventor

Mechanical design

Piping design

Fabricated structures

Welding knowledge

Engineering drawings

P&ID interpretation

DfM / DfI

Multi-disciplinary teams

Tools

Autodesk Vault

Navisworks

Plant 3D

iLogic

Job description

Amentum is seeking a Senior Mechanical Designer to support modular project delivery and complex multi-disciplinary engineering designs. You will develop accurate 3D models, assemblies, BOMs and installation data for mechanical, electrical, piping and instrumentation modules across UK sites.

The role requires hands-on Autodesk Inventor experience, a strong grasp of fabrication processes, and the ability to coordinate across diverse teams.