Senior Software Engineer

CBSbutler Ltd.; Enfield (CT); On-site; USD 82,000 - 88,000; Full time

Job summary

CBSbutler Ltd. is seeking a Senior Software Engineer in Enfield to lead software design and development for radar and navigation systems.

You will own substantial software components from initial spec through verification, testing, and delivery, while mentoring junior colleagues and liaising with customers and partners. The role requires strong C++ skills, full SDLC experience, and excellent English communication.

Qualifications

• A good degree in a relevant subject (e.g. Software Engineering, Computer Science, or similar).
• Strong C++ expertise and hands-on SDLC experience.
• Clear written and spoken English communication skills.

Responsibilities

• Produce software for new, innovative and profitable products and solutions.
• Support and enhance existing software in line with commercial requirements.
• Take responsibility for the specification, design, implementation, testing and maintenance of software.

Skills

C++

SDLC

English communication

Scripting (Python PowerShell)

GUI/UX

Education

Bachelor's degree or higher in Software/CS

Tools

Microsoft Visual Studio

Job description

Senior Software Engineer

Location: Enfield, North London

Salary: Competitive, DOE + benefits (£60,000 - £65,000)

The Opportunity

An established defence and maritime technology organisation, specialising in radar sensor and navigation systems, is seeking an experienced Senior Software Engineer to join its Engineering Software team.

The organisation is a recognised name in solid-state radar sensor technology, supplying navigation and tactical radar display systems to customers around the world. This is an excellent opportunity for a senior C++ developer to take ownership of complex, innovative software projects within a specialist engineering environment.

The Role

Reporting to the Software Engineering Manager, you will be responsible for the whole, or an assigned portion, of a software design - from preliminary specification through to verified, tested software.

You will bring expert knowledge of software design, testing and verification to new and existing products, while also supporting and mentoring less experienced members of the team. The role also involves acting as technical liaison with customers, suppliers and collaborators on software-related matters.

Key Responsibilities

• Use good engineering practice to produce software for new, innovative and profitable products and solutions.
• Support and enhance existing software in line with commercial requirements.
• Take responsibility for the specification, design, implementation, testing and maintenance of software supporting the company's products and services.
• Provide support, advice and mentorship to less experienced colleagues, acting as a role model for junior staff.
• Act as technical liaison, internally and externally, with customers, suppliers and collaborators on software matters.
• Undertake additional project tasks as required by management.

About You

We are looking for a skilled software engineer with strong C++ expertise and proven experience taking projects through the full software development life cycle.

Qualifications

• A good degree in a relevant subject (e.g. Software Engineering, Computer Science, or similar).

Experience

You will ideally have:

• Excellent understanding and hands-on experience of C++.
• Experience of taking projects through the full software development life cycle.
• Good written and verbal English communication skills.
• Good understanding of Microsoft Visual Studio (2022/2026).
• Experience with GUI/UX or HCI would be desirable.
• Knowledge of scripting languages (e.g. Python, PowerShell) would be advantageous.

Why Apply?

This is a great opportunity to join a specialist engineering team working on genuinely innovative products within navigation and radar technology. You'll take real ownership of software projects end-to-end, mentor junior colleagues, and act as a key technical point of contact with customers and partners.

If you're a C++ specialist with full SDLC experience looking for your next senior role, we'd like to hear from you.