Security-Cleared Software Engineer: Mission-Critical Systems

{ “@context”: “http://schema.org”, “@type”: “JobPosting”, “title”: “Security-Cleared Software Engineer: Mission-Critical Systems”, “description”: “Onyx-Conseil is seeking a Software Developer to shape the future of critical UK industries. In this role, you will develop and enhance secure systems that make a real-world impact through collaboration and innovation. You'll work on high-profile projects and address challenging problems while contributing to initiatives that drive industry transformation. The position requires UK Security Clearance or eligibility to obtain in a flexible location including Gloucester, London, and Manchester. Competitive salary and benefits are offered.#J-18808-Ljbffr”, “datePosted”: “2026-05-01”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Onyx-Conseil”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__418763362__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Onyx-Conseil
Apply for the Security-Cleared Software Engineer: Mission-Critical Systems
Location: London
Job Description:

Onyx-Conseil is seeking a Software Developer to shape the future of critical UK industries. In this role, you will develop and enhance secure systems that make a real-world impact through collaboration and innovation. You’ll work on high-profile projects and address challenging problems while contributing to initiatives that drive industry transformation. The position requires UK Security Clearance or eligibility to obtain in a flexible location including Gloucester, London, and Manchester. Competitive salary and benefits are offered.#J-18808-Ljbffr…

Posted: May 1st, 2026