Systems Engineer

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Join us and start building tomorrow’s world today!

What will you be doing? 

Are you ready to contribute to the development of next-generation mission computing systems supporting some of the UK’s most advanced defence platforms? We're seeking a talented Systems Engineer to play a key role in a high-profile aerospace and defence programme, focused on delivering secure, real-time avionics and embedded computing solutions. This is a hands-on opportunity to work across the full engineering lifecycle, from initial requirements and systems architecture through to integration, test, and deployment — enabling critical capabilities for complex airborne and land-based systems.

Location: Hastings (Hybrid)

Your main responsibilities will be: 

• Lead systems engineering activities across the entire V-model lifecycle, including requirements capture, system architecture, design, integration, verification, and validation.
• Manage system and sub-system requirements using IBM DOORS, ensuring full traceability and compliance with customer expectations and design intent.
• Engage in requirements decomposition and traceability, collaborating closely with design, software, and hardware teams to align system functions with high-level needs.
• Define and manage system interfaces, support functional behaviour modelling, and participate in architectural trade-off decisions.
• Contribute to system integration and verification activities, supporting lab-based testing, platform integration, and final acceptance procedures.
• Participate in technical design reviews, hazard analyses, and assurance reviews to ensure robust and reliable engineering solutions.
• Work with multi-disciplinary teams, acting as a key technical interface between engineering teams and stakeholders.
• Engage in through-life support activities such as issue resolution, system upgrades, and configuration management.

Who are we looking for? 

You are... 

• Passionate about engineering 
• result-oriented 
• proactive

Experience, skills and qualifications required: 

• Degree qualified in Systems Engineering, Aerospace Engineering, Electrical/Electronic Engineering, or a related field. Equivalent military/industry experience is also valued.
• 4+ years of experience in a systems engineering role, ideally within the aerospace, defence, or avionics domains.
• Strong expertise in requirements engineering and management, with hands-on experience using IBM DOORS or similar tools.
• Proven capability across the left-hand side of the V-model, including requirement definition, system design, and interface management.
• Familiarity with real-time embedded systems, particularly within avionics and mission computing environments.
• Strong analytical and problem-solving skills; ability to assess and mitigate technical risks effectively.
• Experience supporting integration testing, system verification, and formal qualification activities.
• Must be a sole UK national, SC cleared or eligible for SC clearance (UK Eyes Only projects).

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)