Aerospace Mechanical Fitter & CNC Machinist (Prototyping)

Omega Plc; Gloucester; On-site; GBP 28,000 - 42,000; Full time

Job summary

Omega Plc seeks a Mechanical Fitter / Machinist to support production and prototype/R&D activities. You will perform mechanical fitting, assemble prototypes, and run basic CNC milling/turning to tight tolerances for aerospace/defence components.

Ideal candidates have 3–5+ years in precision machining or fitting, with the ability to read drawings, GD&T, and work safely in a small, fast-paced subcontract environment dedicated to high-integrity components.

Qualifications

• Time-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.

Responsibilities

• Mechanical fitting & assembly - Build, align, assemble, and test mechanical systems, sub-assemblies, and prototypes to engineering drawings and specifications.
• CNC machining operations - Program (basic), set, and operate CNC mills/turns to produce tight-tolerance components for aerospace/defence applications.
• Manual machining - Manufacture one-off parts, tooling, fixtures, and rework items using manual lathes, mills, grinders, and hand tools.
• Engineering problem-solving - Diagnose assembly issues, machining inaccuracies, tolerance conflicts, and prototype build challenges; propose and implement practical engineering solutions.
• Quality assurance & inspection - Conduct first-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.

Skills

Mechanical fitting

CNC machining

Manual machining

GD&T interpretation

Tolerance analysis

Inspection mindset

Education

Time-served apprenticeship in Mechanical Engineering/Precision Engineering

Tools

CMM

Micrometers

Height gauges

Bore gauges

Verniers

Job description

Omega Plc seeks a Mechanical Fitter / Machinist to support production and prototype/R&D activities. You will perform mechanical fitting, assemble prototypes, and run basic CNC milling/turning to tight tolerances for aerospace/defence components.

Ideal candidates have 3–5+ years in precision machining or fitting, with the ability to read drawings, GD&T, and work safely in a small, fast-paced subcontract environment dedicated to high-integrity components.