Senior C# Server Engineer – Greenfield & Defence Systems

{ “@context”: “http://schema.org”, “@type”: “JobPosting”, “title”: “Senior C# Server Engineer – Greenfield & Defence Systems”, “description”: “OSI Maritime Systems is seeking an experienced Desktop C# Server Side Software Engineer in Waterlooville, UK. You will create Greenfield products, design reusable server-side frameworks and engage in system testing. Candidates should have a relevant degree, SC Clearance, and at least 6 years of experience. OSI emphasizes collaboration and offers growth opportunities, competitive benefits, and a supportive culture that values diversity and innovation.#J-18808-Ljbffr”, “datePosted”: “2026-05-09”, “hiringOrganization”: { “@type”: “Organization”, “name”: “OSI Maritime Systems”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__428052498__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=497” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “Waterlooville” } } }
Company: OSI Maritime Systems
Apply for the Senior C# Server Engineer – Greenfield & Defence Systems
Location: Waterlooville
Job Description:

OSI Maritime Systems is seeking an experienced Desktop C# Server Side Software Engineer in Waterlooville, UK. You will create Greenfield products, design reusable server-side frameworks and engage in system testing. Candidates should have a relevant degree, SC Clearance, and at least 6 years of experience. OSI emphasizes collaboration and offers growth opportunities, competitive benefits, and a supportive culture that values diversity and innovation.#J-18808-Ljbffr…

Posted: May 9th, 2026