Senior Software Engineer

Senior Software Engineer

• JavaScript, C++, Linux, IoT, Kubernetes, Microservices
• Southampton, Romsey, Hampshire (Onsite)
• £65,000 - £75,000 + pension & benefits

Are you a talented Software Engineer who thrives on solving real-world problems with cutting-edge technology?

This is an opportunity to join a talented engineering team building advanced, real-time software systems used in safety-critical environments worldwide. You'll be working at the intersection of enterprise software, IoT, and data-driven decision-making; developing solutions that genuinely make a difference.

Why this role is exciting

This isn't just another enterprise software role.

You'll be working on a sophisticated platform that connects physical devices (IoT) with real-time data processing, delivering actionable insights through modern web applications. The systems you help build are deployed globally and play a vital role in protecting people, infrastructure, and national security.

Engineers here consistently highlight exposure to multiple Kubernetes environments (on-prem, cloud, VM-based), working across diverse customer use cases with unique technical challenges, the chance to experiment with new tools, architectures, and AI integrations, and a broad technical landscape spanning microservices, real-time systems, and distributed architectures.

Tech environment

Kubernetes across on-prem, cloud, and hybrid environments. Microservices architecture with real-time data processing. IoT integrations and telemetry pipelines. Modern web applications (TypeScript / JavaScript). CI/CD, DevOps, and infrastructure as code. Emerging work around AI integration and intelligent features.

Why join

Work on meaningful, real-world problems with global impact. Gain exposure to a broad and evolving tech stack. Be part of a team that values innovation, experimentation, and learning. Play a key role in delivering complex solutions to high-profile customers. Collaborate with a highly skilled, mission-driven engineering team.

About You - What makes you a great fit

• We're looking for experienced software engineers with solid backend programming experience in C++, JavaScript and Object Oriented Design
• Deep experience with distributed systems, microservices, and APIs.
• Experience working with Linux environments and Kubernetes.
• Solid understanding of connectivity (TCP/IP, device communication, telemetry).
• A STEM degree is preferred, reflecting the level of technical depth and problem-solving involved.

Additional info

Due to the nature of the work, you must be eligible to obtain UK security clearance.

Please hit apply to upload your CV or contact tomrayner@spectrumit.co.uk for more details and a confidential discussion.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.