Fitter Machinist

The Mechanical Fitter / CNC Machinist provides dualâ€'discipline capability across mechanical assembly/fitting, CNC machining, and manual machining, supporting both production and prototype/R&D activities. The role ensures highâ€'integrity components and assemblies are manufactured, assembled, tested, and delivered to aerospace/defence standards. Core Responsibilities

• Mechanical fitting & assembly - Build, align, assemble, and test mechanical systems, subâ€'assemblies, and prototypes to engineering drawings and specifications.
• CNC machining operations - Program (basic), set, and operate CNC mills/turns to produce tightâ€'tolerance components for aerospace/defence applications.
• Manual machining - Manufacture oneâ€'off parts, tooling, fixtures, and rework items using manual lathes, mills, grinders, and hand tools.
• Engineering problemâ€'solving - Diagnose assembly issues, machining inaccuracies, tolerance conflicts, and prototype build challenges; propose and implement practical engineering solutions.
• Quality assurance & inspection - Conduct firstâ€'off inspections, dimensional checks, and verification against aerospace/defence standards (AS9100 aligned).
• R&D and prototype support - Work with design and engineering teams to develop prototypes, experimental assemblies, fixtures, and tooling.
  
  Mechanical fitting experience in precision engineering, aerospace, defence, or similar highâ€'integrity sectors.
• CNC machining competence - Setting & operating
• Strong manual machining capability for bespoke and prototype work.
• Ability to interpret engineering drawings, GD&T, tolerance stacks, and aerospace specifications.
• Experience working to tight tolerances (±0.01 mm typical).
• Proficiency with inspection tools: micrometers, verniers, height gauges, bore gauges; CMM familiarity beneficial.
Ideal Candidate Profile
• A versatile engineer comfortable switching between handsâ€'on fitting, CNC machining, and manual machining depending on workload.
• Analytical mindset with a natural ability to troubleshoot and resolve engineering challenges.
• Enjoys prototype work, iterative development, and supporting R&D innovation.
• Works effectively in a small, fastâ€'paced subcontract environment with varied daily tasks.
• Takes pride in producing highâ€'accuracy, safetyâ€'critical components for aerospace and defence.
• Strong communicator who collaborates well with engineers, machinists, and quality teams.
Qualifications & Experience
• Timeâ€'served apprenticeship or equivalent in Mechanical Engineering, Manufacturing, or Precision Engineering.
• 3-5+ years' experience in machining, fitting, or hybrid roles.
• Aerospace/defence sector experience highly desirable.
• Additional training in CNC programming, metrology, or advanced machining advantageous.
Compliance & Safety Requirements
• Adherence to AS9100, ISO9001, and internal quality procedures.
• Commitment to safe working practices, PPE use, and riskâ€'based decisionâ€'making.
• Ability to complete required documentation for traceability and compliance.
Outputs & Deliverables
• Highâ€'integrity machined components meeting drawing and tolerance requirements.
• Fully assembled and tested mechanical systems/prototypes.
• Accurate inspection records, build documentation, and nonâ€'conformance reports.
• Continuous improvement suggestions for machining, assembly, and workflow.