Mechanical Draftsperson

ALTEN; Belfast City District; On-site; GBP 35,000 - 45,000; Full time

Benefits offered by this job

Private medical insurance

Life insurance & pension

Team events

Flexible working

Job summary

ALTEN in Belfast is seeking a Mechanical Draftsperson to ensure high standards of engineering drawing quality across defence projects. You will maintain drawing standards, review documentation, and ensure outputs meet BS 8888 and customer requirements, collaborating with design engineers.

You should have 2+ years’ experience, a relevant engineering degree, GD&T knowledge, 3D CAD skills, and openness to obtain SC clearance.

Qualifications

• Experience producing and reviewing mechanical engineering drawings.
• Strong knowledge of BS 8888 drawing standards and drafting best practices.
• Practical understanding of GD&T principles.
• Experience with 3D CAD systems and generating compliant 2D drawings.
• Knowledge of engineering documentation, quality assurance, and document control processes.
• Ability to identify and resolve drawing-related issues and inaccuracies.
• High attention to detail and commitment to engineering quality standards.
• Excellent attention to detail and organisational skills.
• Strong communication skills with the ability to provide constructive technical feedback.
• Confidence working with design engineers and other stakeholders.

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

Mechanical drawing

BS 8888 standards

GD&T

3D CAD

Documentation control

Issue resolution

Attention to detail

Communication

Stakeholder collaboration

Continuous improvement

Education

Engineering degree (BEng/MEng)

Military/defence background

MB definition (MBD) knowledge

Tools

MBD methodologies

Job description

• Compensation: GBP 35,000 - GBP 45,000 - yearly

Company Description

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world-today.

Join us and start building tomorrow’s world today!

Job Description

We're looking for a Mechanical Draftsperson to ensure the highest standards of engineering drawing quality, compliance, and technical documentation across advanced defence and security programmes. Working closely with mechanical design engineers, you will play a key role in maintaining drawing standards, reviewing technical documentation, and ensuring all outputs comply with industry and customer requirements. This position is ideal for someone with strong drafting expertise and a passion for engineering quality and detail.

Location: Belfast
On-site Requirement: 2-3 Days Per Week
Seniority: 2+ Years Experience
Security Clearance: Candidates must be willing and eligible to obtain SC clearance.

Key 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.

Qualifications

Required Skills

• Experience producing and reviewing mechanical engineering drawings.
• Strong knowledge of BS 8888 drawing standards and drafting best practices.
• Practical understanding and application of GD&T principles.
• Experience working with 3D CAD systems and generating compliant 2D drawings.
• Knowledge of engineering documentation, quality assurance, and document control processes.
• Ability to identify and resolve drawing-related issues and inaccuracies.
• High level of attention to detail and commitment to engineering quality standards.
• Excellent attention to detail and organisational skills.
• Strong communication skills with the ability to provide constructive technical feedback.
• Confidence working closely with design engineers and other technical stakeholders.
• Proactive approach to maintaining standards and driving continuous improvement.

Required Qualifications

• Bachelor's or Master's degree in Engineering, or relevant technical military background with equivalent experience.
• Experience within defence, aerospace, or other highly regulated engineering environments.
• Knowledge of Model Based Definition (MBD) methodologies.
• Experience with product lifecycle management and configuration control systems.
• Understanding of manufacturing and inspection requirements.
• Experience supporting engineering quality reviews or audit activities.

Additional Information

We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.

At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.

Join a passionate team and help build tomorrow, today.

• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private MedicalInsurance
• Employee assistance programmeLife insurance & Pension Scheme
• Social atmosphere, regular gatherings &team buildings
• Flexible way of working (role dependent)