Senior Mechanical Design Engineer — GD&T, Drawings & Tolerance Expert

Millbank Holdings; Barnstaple; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Millbank Holdings Ltd is seeking a Senior Mechanical Design Engineer to review, correct and release intricate drawings in line with BS8888. You’ll apply GD&T, perform tolerance stack analyses, and coordinate with suppliers to resolve technical queries.

Hybrid role with minimum 2 onsite days weekly in Barnstaple; SC clearance eligibility required. The role supports a major defence programme within a regulated environment.

Qualifications

• Mechanical Engineering HNC or equivalent qualification.
• Senior Mechanical Design Engineer or Principal Mechanical Engineer experience.
• Extensive experience reviewing, approving and correcting drawings.
• BS8888 standards knowledge.
• GD&T principles applied in practice.
• Tolerance stack-up analysis experience.
• Interpret, amend and correct complex drawings and documents.
• Experience in defence/aerospace/marine manufacturing environments.
• SolidWorks or equivalent 3D CAD knowledge.
• Word/Excel/PowerPoint proficiency.
• Advanced English communication skills.
• Strong stakeholder engagement and technical communication.
• SC Security Clearance eligibility.

Responsibilities

• Review and approve drawings per BS8888 and design standards.
• Identify and resolve non-conformances and documentation issues.
• Amend and update drawings and related technical docs.
• Support configuration control and project lifecycle activities.
• Conduct tolerance stack-up analyses for manufacturability and integrity.
• Apply and review GD&T principles across projects.
• Liaise with suppliers and internal stakeholders on technical queries.
• Support engineering change processes and releases.
• Ensure compliance with industry standards and regulatory requirements.
• Manage supplier technical requests and reviews.
• Support simulations and engineering change assessments.
• Drive drawing quality improvements and documentation compliance.

Skills

GD&T principles

Stakeholder engagement

English communication

Education

HNC or equivalent

Tools

SolidWorks

Microsoft Word

Microsoft Excel

PowerPoint

Job description

Millbank Holdings Ltd is seeking a Senior Mechanical Design Engineer to review, correct and release intricate drawings in line with BS8888. You’ll apply GD&T, perform tolerance stack analyses, and coordinate with suppliers to resolve technical queries.

Hybrid role with minimum 2 onsite days weekly in Barnstaple; SC clearance eligibility required. The role supports a major defence programme within a regulated environment.