Mechanical Draftsperson: Precision Drawings & GD&T

ALTEN Group; Belfast City District; Hybrid; GBP 30,000 - 42,000; Full time

Benefits offered by this job

Private Medical Insurance

Cycle & Tech Scheme

Employee assistance programme

Life insurance & Pension Scheme

Social atmosphere, regular gatherings

Flexible way of working (role dep.)

Job summary

ALTEN is seeking a Mechanical Draftsperson in Belfast to uphold high standards of engineering drawings and documentation on defence programmes. You will collaborate with mechanical design engineers to maintain drawing quality and ensure outputs meet customer requirements.

The role requires 2+ years of experience, BS 8888 and GD&T expertise, and the ability to work on-site 2-3 days per week. A baseline SC clearance is preferred or obtainable during onboarding.

Qualifications

• Experience producing and reviewing mechanical drawings.
• Knowledge of BS 8888 drawing standards and drafting best practices.
• Understanding of GD&T principles and tolerance analysis.

Responsibilities

• Develop and maintain best practice guidelines for mechanical drawings and related engineering documentation.
• Ensure all drawings comply with BS 8888 standards, including dimensioning, tolerancing, drawing layout, and drafting conventions.
• Review technical drawings to confirm compliance with internal quality requirements and customer specifications.
• Validate drawing accuracy, clarity, dimensioning strategies, and tolerancing approaches.
• Review GD&T callouts, datums, feature control frames, and geometric tolerances for technical correctness.
• Ensure document control information, revision status, title blocks, and traceability requirements are maintained.
• Provide technical guidance on GD&T application and drawing standard compliance.
• Support the creation and maintenance of high-quality 2D drawings and CAD-generated outputs.

Skills

Drafting

GD&T

Engineering communication

Education

Bachelor’s or Master’s degree in Engineering

Tools

3D CAD

2D drawings

BS 8888 standards

Job description

ALTEN is seeking a Mechanical Draftsperson in Belfast to uphold high standards of engineering drawings and documentation on defence programmes. You will collaborate with mechanical design engineers to maintain drawing quality and ensure outputs meet customer requirements.

The role requires 2+ years of experience, BS 8888 and GD&T expertise, and the ability to work on-site 2-3 days per week. A baseline SC clearance is preferred or obtainable during onboarding.