C++ Software Engineer (UML Modelling)

Senior C++ Software Engineer – UML Modelling

Location: Edinburgh

Clearance Required: SC cleared

Type: Contract

IR35 Status: Inside or

Working Model: Office-based

Overview

We are seeking an experienced C++ Software Engineer to support a high-profile defence and aerospace programme involving real-time embedded software development. You will be joining a well-established software engineering team contributing to critical radar systems and complex platform capabilities.

This role offers the opportunity to work on cutting-edge projects, applying modern software engineering practices and modelling techniques within a collaborative, multi-disciplinary environment.

Key Responsibilities

• Develop and maintain embedded software using C++ within a UML-based modelling environment (e.g. IBM Rhapsody)
• Support full software development lifecycle activities — from design and implementation to integration and verification
• Collaborate with systems and hardware engineers to deploy software to multi-core or distributed embedded platforms
• Adhere to relevant standards such as RTCA DO-178C and MISRA C/C++ for airborne software development
• Deliver software using Agile methodologies, contributing to regular sprints and reviews

Required Experience

• Proven experience in real-time C++ software development
• Strong understanding of Object-Oriented Design (OOD) principles and UML modelling
• Hands-on experience with modelling tools such as IBM Rhapsody
• Familiarity with software safety and compliance standards (e.g. DO-178C, MISRA)
• Experience with Agile delivery frameworks (Scrum) and tools such as Jira, Confluence, Bitbucket or GitLab
• Comfortable working in an office-based environment alongside engineers from multiple disciplines

If you are a detail-driven software engineer with strong C++ and UML skills, and are looking for a role with long-term impact in the defence and aerospace sector, we’d like to hear from you.