Senior Mechanical Engineer

Southend, Essex
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Our client, a large Aerospace and Defence supplier is looking for a Mechanical Design Engineer to join them on a contract basis at their site in Basildon.

Due to the nature of the project, applicants must hold the sole British nationality and hold SC Clearance.
6 month initial contract
Location: Basildon, 4 day per week onsite
Rate: £64.22 p/h UmbrellaKey Responsibility Areas

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.
Skills, Qualifications & Knowledge
Experience in:

Technical or science degree qualified, or equivalent, with experience.
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.
Operating in a high performing multi-disciplinary Team.Desirable:

Capable of performing 'first pass' Thermal analyses

Job Info
CV-Library logo
Job Title:
Senior Mechanical Engineer
Company:
CV-Library
Location:
Southend, Essex
Salary:
£64.22 Per hour
Posted:
Jan 29th 2026
Closes:
Mar 1st 2026
Sector:
Military, Emergency & Government
Contract:
Contract
Hours:
Full Time
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