Senior Software Developer (C++)

DTC | A Codan Company; Whiteley; On-site; GBP 50,000 - 70,000; Full time

Job summary

DTC | A Codan Company in Whiteley is looking for a Senior Software Developer (C++) to lead development across various applications. The role requires expertise in modern C++, software security, and multi-platform environments.

The successful candidate will work closely with engineers from different domains and contribute to high-impact projects for defence and government. UK Security Clearance eligibility is required.

Qualifications

• Strong proficiency in modern C++.
• Experience developing secure, high integrity application software.
• Multi-platform experience across desktop and mobile environments.

Responsibilities

• Lead the design, development and maintenance of complex applications.
• Collaborate with embedded, hardware, and RF engineers.
• Work within the full product lifecycle.

Skills

Modern C++

Application software development

Multi-platform development

IP networking

Secure communications

Tools

Qt

MongoDB

Job description

Title: Senior Software Developer (C++)

Date: 2 Jul 2026

Location: United Kingdom, Whiteley, Hampshire, GB

About Us

DTC | A Codan Company is a technology company based in Whiteley, Hampshire. We specialise in the research and development of wireless and critical RF communication systems. Our Engineers work at the edge of what is scientifically possible, developing secure, high reliability systems used in real world, mission critical environments. Our technology is deployed nationwide by UK law enforcement and internationally across military, defence and government markets, enabling secure video, data and communications across complex networked environments.

About The Role

At DTC, our Software Engineers enjoy a varied role with a steady stream of challenging projects to work on. As a Senior Software Engineer within our Applications Team, you will lead the design, development and maintenance of complex desktop and mobile applications that underpin our product portfolio across multiple sectors. You will work across the full product lifecycle, shaping requirements, defining scalable architectures, and delivering secure, high integrity software used in operational environments. The role combines enhancement of established, nationally deployed platforms with the development of new products and capabilities, particularly within emerging military applications. You will develop in modern C++ across multiple platforms, collaborate closely with embedded, hardware and RF engineers, and contribute to a culture of technical excellence through code reviews, mentoring and continuous improvement. This is a hands on, engineering led role based on site in Whiteley, working within the Applications Team and closely with the Embedded and Hardware Team. Informal flexibility is available, but regular on-site presence is essential.

What We’re Looking For

• Strong proficiency in modern C++
• Experience developing secure, high integrity application software
• Multi-platform experience across desktop and mobile environments
• Experience with IP networking, secure communications and database technologies
• Confidence working within complex, hardware integrated systems
• Qt programming skills would be useful but is not essential
• MongoDB would be useful but is not essential

Experience within defence, military, video or networked communication environments would be highly beneficial.

Why Work at DTC

We celebrate and recognise success, take pride in our culture, and enjoy working alongside highly skilled colleagues on technology that has genuine operational impact. You will work on secure systems that are nationally deployed, safety critical and used in real world scenarios, while helping shape the next generation of applications within our growing portfolio.

Successful applicants will need to be willing and eligible to obtain UK Security Clearance.

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