C++ Engineer (SC Cleared or Clearable)

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Senior C++ Engineers

3 Positions available.

Based out of Cheltenham 4-5 days per week.

Salary £70,000 to £85,000 per annum.

Immediate start; 3 month notice periods acceptable.

We are working on behalf of a National Security client based out of Cheltenham looking for three Senior C++ Engineers to join on a permanent basis.

We’re looking for engineers who have led end-to-end projects and enjoy solving complex technical problems in software defined radio. The role involves using C++ alongside Python for tooling, automation, or testing. Prior experience in Security, Defence or Financial Services is a big bonus.

Applicants must be SC clear or SC clearable.

#J-18808-Ljbffr”, “datePosted”: “2026-05-17”, “hiringOrganization”: { “@type”: “Organization”, “name”: “iO Associates”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__434437908__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=719” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “Cheltenham” } } }
Company: iO Associates
Apply for the C++ Engineer (SC Cleared or Clearable)
Location: Cheltenham
Job Description:

Senior C++ Engineers

3 Positions available.

Based out of Cheltenham 4-5 days per week.

Salary £70,000 to £85,000 per annum.

Immediate start; 3 month notice periods acceptable.

We are working on behalf of a National Security client based out of Cheltenham looking for three Senior C++ Engineers to join on a permanent basis.

We’re looking for engineers who have led end-to-end projects and enjoy solving complex technical problems in software defined radio. The role involves using C++ alongside Python for tooling, automation, or testing. Prior experience in Security, Defence or Financial Services is a big bonus.

Applicants must be SC clear or SC clearable.

#J-18808-Ljbffr…

Posted: May 17th, 2026