System Design Engineer

Job Description

What will you be doing? 

We are seeking experienced Systems Engineers to join our growing team, supporting mission-critical programmes within the UK defence sector. Working on complex, integrated systems, you will apply your expertise across the entire systems engineering lifecycle, from requirements capture through to design, integration, verification, and validation.

This is an opportunity to deliver impactful engineering in a secure, high-integrity environment, where your work will directly enhance national defence capabilities.

Your main responsibilities will be: 

• Lead and deliver system-level engineering work packages across the V-model lifecycle.
• Capture, analyse, and manage requirements using DOORS to ensure traceability throughout the project.
• Develop system architectures and designs, ensuring robust interfaces and alignment with stakeholder needs.
• Define, plan, and execute verification and validation activities, producing supporting artefacts and documentation.
• Apply systems thinking to identify risks, dependencies, and mitigation strategies.
• Collaborate across disciplines (mechanical, electrical, safety, and software engineering) to deliver integrated solutions.
• Support reviews, audits, and compliance assessments, ensuring designs meet defence and safety standards.
• Contribute to continuous improvement initiatives to enhance systems engineering processes and best practices.

Who are we looking for? 

You are... 

• Passionate about engineering 
• result-oriented 
• proactive

Qualifications

• Bachelor’s degree in systems engineering, Aerospace, Electrical, Mechanical, or related discipline.
• Proven experience in systems engineering within defence, automotive, or aerospace programmes.
• Strong working knowledge of the V lifecycle and requirements management using DOORS.
• Experience developing and integrating complex vehicle or defence systems.
• Familiarity with system safety, risk management, and change control.
• Excellent communication, documentation, and stakeholder management skills.
• Eligible for UK Security Clearance (SC).

Additional Information

Why join us? 

We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently. 

Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities. 

We offer incredible opportunities to join inspiring projects in the most innovative companies. 

We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential. 

Join our passionate team and start building tomorrow, today! 

In short you get: 

• A personalised career path and a rewarding management style 
• A chance to work on the most exciting engineering projects and technologies along with Premium Customers
• A huge diversity of engineering projects and industries
• A competitive salary
• Private Medical Insurance
• Pension Scheme
• Cycle-to-work Scheme among many additional benefits
• Social atmosphere, regular gatherings, and team buildings
• Flexible way of working (role dependent)