Senior Draftsman

About POWERTECH

POWERTECH is a center of excellence for propulsion technologies, specializing in the design, engineering, and manufacturing of combustion engines, expendable turbojet engines, and turbofan engines for a wide range of aerospace, defence, and autonomous applications, including fixed- and rotary-wing UAVs and other advanced platforms.

Position Summary

The Senior Draughtsman: Mechanical, is responsible for the development, control, and release of complex mechanical design documentation within a highly regulated engineering environment.

The role requires advanced proficiency in Siemens NX, SolidWorks, and CREO and configuration management using Windchill, ensuring full compliance with BS 8888 and applicable ISO standards.

Preference will be given to candidates with defence industry experience operating within controlled configuration and quality management systems.

Key Responsibilities

• CAD Modelling & Technical Detailing
  
  

Develop complex 3D models, assemblies, and manufacturing drawings.

Produce detailed fabrication drawings for sheet metal, machined components, welded structures, and mechanical assemblies.

Apply GD&T in accordance with BS 8888 and ISO Geometrical Product Specification (GPS) standards.

Define datum structures, tolerance schemes, and inspection requirements.

Generate flat patterns, DXF files, and CNC-ready documentation.

Prepare assembly drawings, and interface control documentation.

• Standards & Compliance Ensure all drawings comply with BS 8888 and applicable ISO standards (ISO 1101, ISO 2768, ISO 5459, etc.). Maintain consistency in title blocks, drawing notes, revision blocks, and symbology. Specify materials, finishes, coatings, and marking requirements in accordance with defence and ISO quality frameworks. Support internal and external audits for documentation compliance.
• Configuration & PLM Control Manage CAD models, assemblies, and WTPart structures within PLM. Maintain strict revision and lifecycle control in line with configuration management procedures. Process Engineering Change Requests (ECR) and Engineering Change Notices (ECN). Ensure digital continuity between CAD model, drawing, BOM, and released configuration.
• Leadership & Technical Oversight Mentor junior designers and draughtsmen. Develop and maintain CAD standards, templates, and modelling best practices. Drive continuous improvement within the Drawing Office.
  
  

Required Qualifications

• Diploma or Degree in Mechanical Engineering or equivalent technical discipline.
• 5–7 years’ experience in mechanical CAD design and detailing.
• Advanced proficiency in Siemens NX and SolidWorks (part, assembly, sheet metal, drawing modules).
• Strong working knowledge of PDM/PLM.
• Comprehensive understanding of GD&T and ISO GPS standards.
• Proven experience producing manufacturing-ready documentation.
  
  

Technical Competencies

• Complex assembly structuring and BOM management
• Sheet metal development and bend calculation methodologies
• Tolerance stack awareness
• Surface finish and coating specification
• Configuration management discipline
  
  

Key Attributes & Behaviours

• Meticulous attention to detail with a zero-defect mindset.
• Strong analytical capability and engineering judgement.
• Structured, disciplined, and methodical approach.
• Excellent communication skills for feedback and stakeholder interaction.
• High integrity and accountability, especially in safety-critical environments.
• Ability to work under pressure while maintaining accuracy.
  
  

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