C++/Qt Software Engineer – Greenfield Console, Independent

Carbon 60; Gloucester; On-site; GBP 90,000 - 96,000; Full time

Job summary

Carbon 60 is seeking an experienced C++ Software Engineer to join a defence-focused engineering team in Bristol on a 12-month contract. You will redevelop a greenfield software console application, delivering a modern, maintainable solution with Qt and C++.

The role involves autonomous work within a wider team, contributing to architecture, verification, and documentation to support certification. Onsite 5 days per week with a competitive hourly rate of 65-70 GBP Inside IR35.

Qualifications

• Strong C++ software engineering background with exposure to safety-critical domains.
• Experience delivering full software lifecycle from requirements to verification.
• Proven ability to work autonomously within a larger engineering team.

Responsibilities

• Design and develop a new software console application using C++ and Qt.
• Define and implement robust software architecture for a long-term product.
• Work through the full software development lifecycle from requirements to validation.
• Produce clear technical documentation to support development and certification.
• Collaborate with systems, integration and verification teams for high-quality solutions.
• Contribute ideas on new tools and approaches to improve efficiency.

Skills

C++ programming

Software architecture

Autonomous work

Team collaboration

Verifications & validation

Tools

Qt

C++ toolchain

Job description

Carbon 60 is seeking an experienced C++ Software Engineer to join a defence-focused engineering team in Bristol on a 12-month contract. You will redevelop a greenfield software console application, delivering a modern, maintainable solution with Qt and C++.

The role involves autonomous work within a wider team, contributing to architecture, verification, and documentation to support certification. Onsite 5 days per week with a competitive hourly rate of 65-70 GBP Inside IR35.