Job Description

Senior Mechanical Engineer
Job type:Contract
Town/City:Basildon
County:Essex
Salary/Rate:Up to 63 per hour
Business Sector:Mechanical Engineering
Job ref:BBBH153277
Post Date:January 06, 2026
Senior Mechanical Engineer

• Basildon, Essex (4 day/week on site)
• 63ph (Inside IR35)
• Initial 9 month contract

**Please note we can only consider sole UK Nationals for this role**
We are currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes.
What you'll do as a Senior Mechanical Engineer:

• Support senior members of staff in the delivery of technical solutions on critical Business Programmes.
• Generation of mechanical solutions to relevant company and international standards.
• Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc.
• Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc.
• Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T.
• Generate BoM within approve PLM system (Teamcenter).
• Contribute to reviews of Mechanical designs in accordance with business and industry standards.
• Deliver design solutions against Technical Requirements, within budget and timescales.

What we need from you:

• Mechanical engineering for Electronic Products (including EO).
• Perform 'hands on' mechanical design and development using 3D CAD software (PTC Creo).
• Structural design and an ability to carry out 'first pass' analyses and work in conjunction with full-time Structural Analysts.
• Experienced in working on Electro-Optic Products, with proven knowledge of electrical screening, grounding, opto-mechanical sub-assemblies, etc.
• Detail and assembly drawing generation, in accordance with BS8888.
• Numerical calculations, tolerance studies, etc.
• Proven understanding of the application of materials and process finishes to meet EO Product needs.
• Experienced in the design of Jigs, Fixtures and Tooling to support the Assembly, Integration and Testing of EO Products, for the Aerospace and/or Defence sector.
• Ability to work within a multi-discipline IPT.
• Knowledge of Cable Harness design, including Connector selection, screening, strain relief methods, etc.
• Experienced in various aspects of DfX, including Manufacturing, Assembly, Test, Integration and Sustainability.

Skills Required