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Date Added: Wed 18/03/2026

Test And Instrumentation Engineer

Portsmouth, PO1, UK
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Company: CRITICAL MARITIME SYSTEMS & SUPPORT LIMITED

Job Type: Permanent, Full Time

Description
CMS2 is a specialist equipment manufacturer supplying maritime atmosphere control systems and support services. CMS2 are experts in enabling high availability atmosphere management systems to generate breathable air for submariners, allowing boats to remain underwater for long periods of time. We do this by combining over sixty years of expertise with the latest technology and processes to design, build and support high quality systems and solutions.

We are seeking a Test and Instrumentation Engineer to join our established team
The Test and Instrumentation Engineer will provide the testing of CMS2's air purification equipment to the highest of quality and in accordance with the company procedures, customer standards and regulatory requirements. 
Key Responsibilities

The Test and Instrumentation Engineer will provide the testing of CMS2's air purification equipment to the highest of quality and in accordance with the company procedures, customer standards and regulatory requirements. 

Integration of test instrumentation

Interface benchtop instruments (oscilloscopes, power supplies, signal generators) with automation platforms.

Data acquisition and analysis

Configure DAQ systems for data capture to compile test information to formulate baseline information.

Continuous improvement

Optimise test cycle times, improve reliability and implement error proofing techniques for automated test processes.

Contact for Test & Instrumentation activities on the full range of CMS2 key products and provide a pro-active and hands-on approach to the test, and fault diagnosis for CMS2 equipment on and off site.

Develop and maintain in house automated test equipment that will enhance the timings and effort required on day-to-day testing. 

Conduct thorough testing and validation of electrical automation systems, ensuring compliance with design specifications, safety standards, and performance requirements.

Carry out, flash testing, IR testing, earth bonding and point to point checks.

Investigating mechanical and electrical problems, diagnosing and repairing faults where appropriate. 

Use benchtop test equipment such as oscilloscopes, counter timers, Multimeter, earth testers, IR testers, meggers etc…

Understanding the need for use of ESD equipment when working with certain components.  

Ensure documentation and test results are recorded as required.

Feedback to the engineering team with any design or maintenance issues that have occurred throughout the test phase.

All to be carried out in accordance with company test procedures.
Secondary tasks: 

Perform hydrostatic and pneumatic pressure tests on mechanical components, piping systems, and plant assemblies in accordance with engineering specifications and safety regulations.

Run factory acceptance tests (FAT's) with the customer present. Demonstrate how our equipment works from mechanical, electrical and a chemical process side. 

Time allocation:

20% (Equal to 1 day per week) - To be focus time on automating test procedures for more efficiency within the department.

80% (Equal to 4 days per week) - To be focused on Test and instrumentation work. 
General activities:

Carry out any other ad-hoc duties as required to support the needs of the business.

Provide a professional backup service for colleagues during peak times or during absence.

Follow company procedures, standards and regulatory requirements.  

Maintain continuous professional development to ensure knowledge is up to date.

Act as an ambassador for the company in all interactions with customers and the public.

Skills, Knowledge and Expertise
Essential:

NVQ/HNC qualification in engineering

Apprenticeship in relevant engineering field

Previous test & commissioning experience in a highly regulated industry (process engineering)

Strong commitment to health and safety, environment and quality

IOSH Working Safely 

Ability to read and interpret documents such as process engineering drawings, specifications and procedures

Good hands on electrical / mechanical skills

Pragmatic approach to tasks

Must be able to work efficiently as part of a team and to work under pressure in a challenging environment

Excellent attention to detail

Flexibility, enthusiasm, self-motivated and able to work well under own initiativ
Desirable:

HND/Degree qualified in engineering

Previous experience within a manufacturing and defence environment

Shipbuilding / Ship Repair background within the MOD / Naval Industry

Familiar with NPI / NPD 

Experience of air purification equipment on-board submarines highly desirable

Able to forge strong working relationships both internally and externally

IOSH Managing Safely

5S / LEAN continuous improvement
Some travel to MoD sites in the UK and customer sites overseas may occasionally be required.

Other requirements:

Candidates must have an existing right to live and work in the UK
Candidates must have passed UK security clearance to Security Check level or be able to obtain this level.  To gain SC clearance you will normally have had to have been a resident in the UK for a minimum of 5 years. 
Candidates must be able to obtain a basic security check which will normally require you to have been resident in the UK for at least 3 years.
Benefits
At CMS2, we believe in rewarding our people and supporting their well being. Alongside our competitive salaries we offer a comprehensive benefits package including, Company Profit Share Scheme, Generous Holiday Allowance with the ability to buy and sell holiday and more
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