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Job Title


Principal Software Engineer (ADA/C# .NET)


Company : CBSbutler


Location : bradford, yorkshire and the humber


Created : 2026-01-11


Job Type : Full Time


Job Description

Principal Software Engineer (ADA/C# .NET)**Please note we can only consider sole UK Nationals for this role**Location: Luton (Hybrid: 4 days on-site, 1 day remote)Contract: 12 monthsIR35: Inside IR35Security Clearance: Full UK SC requiredDay Rate: £70ph - £75phAbout the RoleA real-time embedded software engineer with knowledge of Ada/C# .NET is required in support of defensive aids development programmes within the Electronic Warfare business. The role includes design, development, test and support of current and future programs across our Praetorian product line. What You’ll DoSupport the specification, design, coding and testing of complex real-time embedded software in Ada producing mission critical quality software, to high integrity levels, company standards and customer requirements.Take ownership of complex tasks across the full software lifecycle from requirements to integration, testing and delivery.Collaborate with hardware, firmware, and systems engineering teams, working closely across disciplines to develop robust solutions whilst maintaining independence in your work. What We’re Looking ForExpert knowledge of the Ada software language including OO design principles.Expert capability in debugging in an embedded real-time environment with a COTS RTOS.Good knowledge of UML.Expert knowledge of a variety of Verification & Validation techniques, and the value of each.Experience of requirements engineering, hands-on integration and target testing.Good knowledge of developing software within a mature development process framework.DesirableDefence / EW business domain experience.Experience of Dimensions, DOORS, Rhapsody, VxWorks, AdaCore GNAT Pro & VectorCAST.Experience and understanding of development to RTCA/DO-178B or equivalent standardsWhy This Contract?· Immediate start (subject to onboarding and SC Clearance).· Hybrid working model for flexibility (4 days on-site, 1 day remote).· Opportunity to work on innovative defence technology with a high degree of autonomy.· Long-term project with strong potential for extension.