Backend Software Engineer - C++

STARK; Swindon; On-site; GBP 45,000 - 65,000; Full time

Job summary

A leading defense technology company in Swindon is seeking a talented Backend Engineer to design and build the backbone of next-generation systems. The ideal candidate will have strong C++ skills and experience with server applications and API integration. Responsibilities include developing core software systems, designing APIs, and conducting rigorous testing. This role requires relevant educational background in engineering or computer science and offers opportunities to work on defense-related platforms, with the possibility of travel in the UK and Europe.

Qualifications

• Strong proficiency in C++, Rust experience is a plus.
• Experience with server applications and API integration.
• Background in autopilot, flight control systems, or robotics is desirable.

Responsibilities

• Develop and maintain the backend of core software systems.
• Design and extend APIs and SDKs for integration.
• Conduct rigorous testing of both software and system functionality.
• Contribute to improving C++ development environment.

Skills

C++

Problem-solving

Communication

Team collaboration

Adaptability

Education

Bachelor’s or Master’s degree in Engineering or Computer Science

Tools

API integration

Server applications

Job description

Permanent employee, Full-time

• Swindon

About Us

STARK is a defense technology company revolutionizing the way autonomous systems are deployed across multiple domains. We design, develop and manufacture high performance unmanned vehicles that are software-defined, mass-scalable, and cost effective – giving NATO and its allies a decisive edge in the most contested environments.

We’re focused on delivering deployable, high-performance systems - not future promises. In a time of rising threats, STARK is bolstering the technological edge of NATO Allies and their Partners to deter aggression and defend Europe - today.

Your mission

We are seeking a talented Backend Engineer to design and build the backbone of next‑generation systems that integrate data, sensors, and control applications into secure, high‑performance software. You will contribute to technology that powers aerospace, automotive, robotics, and defence‑related platforms where real‑world devices meet advanced software.

Responsibilities

• Coding first! – Develop and maintain the backend of our core software systems.
• Design, build, and extend APIs and SDKs to integrate assets, sensors, and external applications.
• Expand and optimise our architecture to deliver scalable, reliable solutions.
• Integrate and extend existing software, ensuring interoperability across complex systems.
• Implement relevant standards (including STANAG and industry protocols).
• Manage high‑volume mission and sensor data storage and processing.
• Conduct rigorous testing of both software and system‑level functionality.
• Contribute to improving our C++ development environment.
• Stay current with emerging technologies, identifying innovations to enhance our products.
• Deep‑dive into complex technical issues, solving challenging problems at system level.
• Evaluate and challenge requirements, focusing on what adds real value.

Qualifications

• Bachelor’s or Master’s degree in Engineering, Computer Science, or a related field.
• Strong proficiency in C++ (Rust experience a strong plus).
• Experience with server applications and API integration.
• Solid understanding of software architecture and frameworks.
• Background in autopilot, flight control systems, robotics, or similar control technologies is highly desirable.
• Experience with integrated sensor systems, inter‑process communication, or TypeScript (frontend) is a plus.
• Relevant experience in aerospace, automotive, robotics, IoT, or connected real‑world devices.
• Excellent problem‑solving and debugging skills.
• Strong collaboration and communication skills for multidisciplinary teamwork.
• Adaptability to thrive in a fast‑moving, innovative environment.
• Eligibility for UK Security Clearance is essential.
• Willingness to travel in the UK and Europe when required.

LEGAL DISCLAIMER

We are an equal‑opportunity employer committed to fostering a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or any other characteristic protected by law. Due to the nature of our work in the defense sector, candidates must be eligible to obtain and maintain the appropriate security clearance required for the position.