C++ Software Engineer

JR United Kingdom; Cambridge; On-site; GBP 45,000 - 55,000; Full time

Job summary

A UK company is seeking a Mid-Level C++ Software Engineer to develop cutting-edge radar and surveillance systems. The ideal candidate will have experience in modern C++ development and real-time systems, contributing to mission-critical solutions in a hybrid work environment.

Benefits

Hybrid working – 3 days in-office, 2 from home

Long-term career growth

Role with real-world impact in security

Qualifications

• 3–5 years of professional experience in modern C++ development.
• Experience developing real-time or performance-critical systems.
• Strong grasp of software architecture.

Responsibilities

• Designing and developing high-performance C++ applications for radar control systems.
• Improving system performance and user experiences.
• Collaborating with cross-functional teams.

Skills

C++ development

Object-oriented design

Real-time systems

Linux development

Networking protocols

Python scripting

Education

Degree in Computer Science or Software Engineering

Job description

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Mid-Level C++ Software Engineer – Radar & Surveillance Systems.

Hybrid Working (3 Days On-Site) | Permanent

Looking to step up in your software engineering career with a role that genuinely makes an impact? We’re hiring a Mid-Level Software Engineer to join a cutting-edge UK company developing next-generation radar, surveillance, and security systems used in critical defence and security infrastructure.

If you have 3–5 years of professional experience in modern C++ development and a solid engineering mindset, this is a chance to take ownership of high-performance software in a complex, real-time environment – all while working in a hybrid setting that supports work-life balance.

What You’ll Be Doing

You’ll be designing and developing high-performance C++ applications for external radar control systems and interfaces. This includes working with real-time data, refining system performance, and improving user experiences – often in collaboration with the teams who use the systems in the field.

You’ll be part of a collaborative, cross-functional engineering team building mission-critical solutions that support UK defence and homeland security.

You’ll Need

• A degree in Computer Science, Software Engineering, or a similar technical discipline
• 3–5 years of commercial experience developing in modern C++ (C++11/14/17/20)
• Strong grasp of object-oriented design and software architecture
• Linux development experience, along with scripting (Python)
• Experience working on real-time or performance-critical systems
• Exposure to networking protocols and end-user-focused development

Bonus points for experience with:

• Command and control systems in the defence or security sectors
• Geographic Information Systems (GIS) or spatial data processing

Why Join?

• £45,000 – £55,000 base salary depending on experience
• Hybrid working – typically 3 days in-office / 2 from home
• A role with real-world impact in a secure and growing industry
• Long-term career growth in a stable UK-based engineering team