Principal Software Engineer

Why Join DeterTech?

At DeterTech, we are driven by a clear purpose: giving greater peace of mind to people and communities, every day.

With a team of 300 colleagues, a £50m turnover, and over 3,000 customer sites across Europe, we are an industry leader in predicting, deterring, and detecting intrusions. By combining cutting-edge technology with real intelligence, we deliver security solutions that make a measurable impact.

But we’re not stopping there. We have ambitious plans for growth, and we’re looking for driven individuals to be part of our journey. Whether it’s expanding into new customer sectors, entering new markets, launching innovative products, or exploring new distribution models, we’re creating opportunities to shape the future of security.

As we scale, we’re looking for talented individuals who want to make an impact and help shape the future of security solutions. At DeterTech, we offer more than just a job—we offer a career with purpose, development, and recognition.

As a Principal Software Engineer, you’ll play a key role in delivering our ambitious growth plans and ensuring our customers receive best-in-class security solutions. This is an exciting opportunity to work in a fast-growing, technology-driven business, where innovation and collaboration drive everything we do.

We require a technical leader shaping the future of engineering within the organisation, influencing high-level decision-making, drive innovation, and guide engineering teams toward excellence.

Key Responsibilities

• Define technical vision and strategy for engineering projects.
• Lead large-scale, complex projects with high business impact.
• Act as a subject matter expert, providing guidance across teams and departments.
• Evaluate and implement emerging technologies and methodologies.
• Establish best practices, standards, and long-term technical goals.
• Work closely with executive leadership to align engineering goals with business objectives.
• Full compliance with the DeterTech stage/gate development process.

Requirements

• Degree qualification within a suitable discipline, masters is a bonus.
• 10+ years of engineering experience with a track record of leadership.
• Deep expertise in engineering principles, industry trends, and emerging technologies.
• Strong ability to influence technical direction at an organizational level.
• Excellent problem-solving, decision-making, and communication skills.
• Experience in mentoring, coaching, and developing engineering talent.

Skills, Knowledge and Expertise

• Supporting and leading throughout the full software lifecycle from requirements analysis; through design, and test; to integrating with hardware; and acceptance test.
• Good knowledge of all stack areas, from front-end to back-end.
• Solid background in software engineering with years of experience in a variety of systems and technologies.
• Software development and version control and release process.
• Strong experience of managing successful delivery in an Agile software environment.
• Experience building and leading teams of highly skilled software engineers that deliver high-quality software.
• Strong understanding of system design, software architecture, cloud, and software engineering best practices.
• Understanding of DevSecOps and cybersecurity regulations.
• Experience of developing brand-new applications as well as maintaining an existing codebase.
• Creative, curious, and fearless; you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams - designing, building, releasing, and maintaining products.
• Experience with vision systems, embedded and cloud-base computer vision.
• Familiarity with electronic hardware, components, interfaces, and architectures.
• In-depth experience developing Linux, device drivers, and low-level system software, with a focus on performance and scalability.
• Ability to present and explain system designs to colleagues, management, and stakeholders.

Benefits

• 25+ Days of Holiday
• Healthcare scheme
• Company pension scheme
• Employee Assistance Programme
• Life Cover 4x salary
• SmartWater Product Pack
• Wider Benefits Portal
• Buy Holiday Scheme
• Employee Recognition Programme