https://jobs.co.uk/job/senior-software-engineer-spectrum-it-recruitment--f4001c08-9e24-49f0-a69c-1400d233a70a RSS feed for Senior Software Engineer at Spectrum IT Recruitment. en-gb Thu, 11 Jun 2026 18:50:46 GMT https://jobs.co.uk/job/senior-software-engineer-spectrum-it-recruitment--f4001c08-9e24-49f0-a69c-1400d233a70a https://jobs.co.uk/job/senior-software-engineer-spectrum-it-recruitment--f4001c08-9e24-49f0-a69c-1400d233a70a Wed, 10 Jun 2026 23:00:00 GMT Location: Portsmouth | Salary: £70000 - £85000/annum Benefits | Type: Permanent | Senior Software Engineer - Server Side (C# / Worker Service / ORM) Waterlooville, Hampshire | Up to -85,000 + Benefits | Onsite | 4 or 5 day week Some projects are maintenance. Some are migrations. And then something genuinely rare comes along - a blank canvas, a serious engineering challenge, and a product deployed on military vessels around the world. A well-established international maritime technology company is building a brand-new Integrated Maritime Management System (IMMS) from scratch in Waterlooville. The pace is real - there''s a client demo in January. You''ll be among the first engineers into the UK team, with a clear expectation that early hires grow into team lead roles. The Role You''ll be at the heart of the system architecture, building the server-side framework that underpins everything. Clean, modular C# using a Worker Service pattern, a reusable common framework, and direct interfaces to sensors, effectors, and external systems. Production-quality engineering where simplicity, precision and pace all matter. Stack C# / Worker Service, greenfield from scratch ORM, NHibernate / Entity Framework, SQL database design and creation DI, Unit Testing, ... Permanent