C# Defence Simulation Engineer – SC Clearance, Onsite

Line Up Aviation; Stevenage; Hybrid; GBP 120,000 - 130,000; Full time

Job summary

Line Up Aviation is seeking a C# Software Engineer on a 12-month contract to join a defence simulation project. The role is based in Stevenage or Bristol with 3–4 days onsite per week, offering an hourly rate of £65 via Umbrella inside IR35.

You will contribute to the development of advanced simulation systems from concept to in-service support, using C#, C++, and integration simulations in a heterogeneous agile team. Strong communication and cross-system understanding are essential.

Qualifications

• Proficient in C# and C++.
• Experience with Visual Studio or Eclipse.
• Able to work from high level/system view into technical detail.
• Excellent verbal, presentation and written communication skills.
• Knowledge of Windows and Linux operating systems.
• Distributed simulation standards (DIS, HLA, DDS) and web services development (JavaScript, Node.js).
• Practical knowledge of system integration principles and processes.

Responsibilities

• Support the development of defence simulation systems from concept through to in-service support using simulation technologies.
• Collaborate with Project Leads and Simulation Architects to design and develop simulation components in C# and C++ for end-to-end weapon system representations.
• Work in a heterogeneous agile development team to develop simulations and representations of real equipment.
• Follow development practices: configuration control, CI, CD, and unit testing with TDD.

Skills

C# programming

C++ programming

Node.js

JavaScript

Web services

System integration

Communication

DIS/HLA/DDS

Tools

Visual Studio

Eclipse

Windows

Linux

Job description

Line Up Aviation is seeking a C# Software Engineer on a 12-month contract to join a defence simulation project. The role is based in Stevenage or Bristol with 3–4 days onsite per week, offering an hourly rate of £65 via Umbrella inside IR35.

You will contribute to the development of advanced simulation systems from concept to in-service support, using C#, C++, and integration simulations in a heterogeneous agile team. Strong communication and cross-system understanding are essential.