Systems Engineer – Nuclear Division
ALTEN UK is looking for a Systems Engineer to join our rapidly expanding Nuclear division. This is a senior technical role where you will lead systems engineering strategy, governance, and lifecycle delivery across major safety‑critical programmes for our key clients within the UK's nuclear industry.
You will play a pivotal role across projects such as nuclear new build, defence nuclear infrastructure, decommissioning programmes and high‑integrity engineering systems—helping ensure that complex systems are safe, compliant, and engineered to the highest standards.
Responsibilities
* Act as the systems engineering authority for major nuclear programmes.
* Define the systems engineering strategy and tailor lifecycle processes (concept → disposal).
* Ensure compliance with ONR expectations, UK Defence Standards, ISO/IEC 15288 and internal governance.
* Lead the requirements capture, decomposition, and validation process.
* Develop Requirements Breakdown Structures and V&V strategies.
* Maintain traceability using tools such as IBM DOORS, ensuring control from user need to subsystem and component level.
* Define V&V plans, acceptance criteria and system‑level test strategies.
* Lead engineering review gates, readiness assessments and technical assurance activities.
* Review engineering change proposals and ensure compliance with requirements baseline.
* Manage evidence production for regulatory submissions and engineering justification.
Candidate Profile
* A natural systems thinker with strong technical leadership skills.
* Highly organised and able to coordinate multiple engineering teams.
* Comfortable presenting to stakeholders, regulators and senior engineering authorities.
* Passionate about engineering quality, nuclear safety and technical excellence.
* Proactive, detail‑driven and confident taking ownership of system‑level delivery.
Qualifications
* Degree in Engineering with a focus on System engineering.
* Extensive experience in systems engineering within nuclear, defence, aerospace, rail or other safety‑critical environments.
* Strong background in requirements management and lifecycle governance.
* Hands‑on experience with DOORS, MBSE tools (Cameo, EA, Rhapsody) and V‑model processes.
* Proven ability to lead systems engineering activities across full lifecycle (concept → commissioning).
* Excellent knowledge of interface management, systems architecture and technical assurance.
* Understanding of ALARP, SQEP, hazard analysis and nuclear safety case principles.
Desirable
* Chartered Engineer (CEng) or working towards.
* INCOSE ASEP / CSEP / ESEP certification.
* Experience working with ONR, Defence Nuclear standards or other regulatory frameworks.
* Experience producing SEMP, V&V plans, architecture models, trade studies and design justification.
Additional Information
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.
Benefits
* A personalised career path and a rewarding management style.
* A chance to work on the most exciting engineering projects and technologies alongside Premium Customers.
* A huge diversity of engineering projects and industries.
* A competitive salary.
* Private Medical & Travel Insurance.
* Pension Scheme.
* Cycle‑to‑work Scheme among many additional benefits.
* Social atmosphere, regular gatherings and team building.
Flexible way of working (role dependent).
This role will require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed or rejected. Details of this will be discussed with you at interview.
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