Mechanical Draftsperson

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!

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.

• 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

• 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. Soft Skills & Collaboration
• 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.

• Bachelor's or Master's degree in Engineering, or relevant technical military background with equivalent experience. Desirable

• 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. In short you get:

• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Cycle & Tech Scheme
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent) We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes. ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know. This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.

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