Mechanical Technician

Position: Mechanical Technician

Department: Cryobitz Manufacturing

Location: Witney

Salary: competitive

Role Purpose

We are seeking a skilled, practical technician to manufacture and assemble high-quality cryogenic products, including transfer lines, LN traps, vacuum-insulated components and associated assemblies.

This is a hands-on role with a strong emphasis on precision welding, soldering, brazing, and mechanical assembly. The successful candidate will produce neat, accurate and carefully to engineering drawings and defined quality standards.

Key Responsibilities

• Assemble bespoke cryogenic systems from engineering drawings and build information.
• Fit pipework, valves, vacuum components, flanges and mechanical assemblies.
• Perform vacuum and helium leak testing of components and assemblies.
• Prepare, clean and handle components for high and ultra-high vacuum (UHV) applications.
• Maintain high standards of cleanliness throughout assembly and prevent contamination of vacuum-critical components.
• Complete mechanical fitting, drilling, tapping and general assembly work.
• Occasionally operate manual mills and lathes for simple machining and modification work.
• Follow route cards, drawings, Standard Work Instructions and manufacturing instructions.
• Complete and record required checks during assembly.
• Identify, investigate and resolve build problems, escalating issues where required.
• Carry out rework and modifications when required.

Essential Skills and Experience

• Previous mechanical assembly, engineering or manufacturing experience.
• Strong practical and mechanical skills.
• Ability to read and work from engineering drawings.
• Good problem-solving skills and the ability to identify practical solutions to build issues.
• Excellent attention to detail and a high standard of workmanship.
• Ability to work to strict cleanliness standards.
• Experience using hand tools and workshop equipment.
• Ability to follow documented processes and instructions.

Able to work independently and take responsibility for the quality of completed work.

Good communication and teamwork skills.

Desirable Skills & Experience

• Experience handling and assembling components for high vacuum or ultra-high vacuum (UHV) applications.
• Understanding of UHV cleanliness, contamination control and appropriate component handling..
• Vacuum and helium leak testing.
• Cryogenic or high-vacuum equipment.
• Stainless steel pipework and fittings.
• Swagelok or similar compression fittings.
• Manual milling and turning.
• Precision mechanical assembly.
• Scientific, laboratory or specialist engineering equipment.

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