Principal System Design Engineer

As a Principal Systems Design Engineer you will be a key engineering lead shaping the architecture and design of advanced C4I systems for critical defence programmes. This role seeks leadership elements for an experienced systems engineer who thrives on solving complex challenges influencing strategy and mentoring others. You will drive innovation ensure technical excellence and deliver integrated solutions that meet demanding operational requirements.

• Lead system architecture and design for complex mission-critical defence systems translating operational concepts into robust solutions.
• Define and implement technical strategy ensuring alignment with programme objectives and future capability needs.
• Guide design reviews and ensure technical integrity throughout the lifecycle including integration of specialty disciplines (Safety Security Human Factors ILS Training).
• Conduct trade studies performance modelling and evaluate emerging technologies to inform strategic decisions.
• Mentor junior engineers and engage with senior stakeholders including MoD representatives to influence programme-level decisions.

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Qualifications :

Essential:

• Extensive experience in systems engineering and system design leadership.
• Proven ability to resolve complex design challenges and make strategic trade-offs.
• Strong track record of leading cross-functional teams and engaging specialist disciplines.
• Expertise in structured design methods and requirements management.
• Exceptional communication skillsable to present confidently at senior-level reviews.
• Skilled in producing high-quality technical documentation and delivering to schedule.
• Proficiency in Microsoft tools (Word Excel PowerPoint Visio).
• Proven track record in system architecture and design for complex mission-critical systems.
• Experience across the full engineering lifecycle (requirements design integration verification).

Desirable:

• Deep understanding of network architectures OSI model and open standards.
• Familiarity with Open and Military Standards and compliance frameworks.
• Experience with Model-Based Systems Engineering (MBSE) SysML and structured design methodologies.
• Knowledge of TOGAF or NATO Architecture Framework.
• Awareness of Safety Security and ILS processes within defence programmes.

Additional Information :

Salary for this position is 59200 to 80000 depending on experience plus our excellent flexible benefits package.

We offer hybrid working - for this role ideally we are looking for an average of 2 days per week per month on site.

We pride ourselves in being a great place to work with a shared sense of purpose offering impressive benefits: 

• A compressed nine-day fortnight and compressed hours - which means every other Friday off. 
• A personalized career development plan alongside regular progress reviews - supporting and valuing your progression within the Company. 
• A flexible working environment where your contributions are recognized and rewarded with flexible benefits 

We believe in maintaining a diverse workplace - inclusive of beliefs cultural background job experiences thoughts and ideas. If who we are and what we do resonates with you we welcome you to join our inclusive team!

Our success is fuelled by our colleagues and the wide variety of backgrounds perspectives and skills they bring to the Company.

We are a Disability Confident Employer as such we offer an interview to disabled people who meet the minimum criteria for the job.
Please email if you would like your application to be considered under the DC Scheme.

All successful/appointed applicants must be able to obtain a level of UK Security clearance that is appropriate for the role and undertake suitable Right to work checks

Every application matters to us. We want you to know that each application we receive is reviewed by a real personnot just an algorithm. Our screening questions are also carefully considered to help us understand your experience and fit for the role.

We appreciate the time you take to apply.

Remote Work :

No

Employment Type :

Full-time