We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow.  We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.
People are our greatest asset, and we offer a competitive package to retain and attract the best talent.
In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.
 
About the Opportunity

We are looking for an individual to join our team supporting system and enterprise modelling activities for a UK defence project. You will be instrumental in defining, designing, and analysing complex systems using model-based techniques. You will work across the entire system lifecycle, from concept definition and requirements capture to architecture design, verification, and validation, ensuring that our solutions are robust, consistent, and meet stringent performance and safety standards. This role is ideal for individuals with a strong foundation in systems engineering and a proven ability to apply modelling principles to solve real-world challenges. 

Key responsibilities:

• System Modelling. Develop, maintain, and analyse system models using industry-standard MBSE tools (e.g., Cameo Systems Modeler, Sparx Enterprise Architect, Rhapsody) and languages (e.g., SysML, UML).

• Requirements Management. Elicit, analyse, define, and manage system and stakeholder requirements, ensuring traceability throughout the model.

• Architecture Definition. Design and document system architectures, including functional, logical, and physical views, using model-based approaches.

• Trade Studies & Analysis. Conduct model-based trade studies, simulations, and analyses to evaluate design alternatives, predict system behaviour, and optimise performance.

• Stakeholder Communication. Effectively communicate complex system concepts, designs, and analysis results to diverse technical and non-technical stakeholders using model views and visualisations.

• Process Improvement. Contribute to the development and refinement of MBSE processes, standards, and best practices within the organisation.

Here’s What You’ll Need  

• Deep understanding of SysML and the practical application thereof across a range of tools in complex projects

• Experience with architecture frameworks, such as TOGAF, UAF, and NAF

• Experience using one or more of Sparx EA, PTC Modeler, or Cameo.

• Solid understanding of the full systems engineering lifecycle (V-model, Agile, Iterative).

• Demonstrable experience in requirements elicitation, analysis, and management.

• Ability to define and articulate complex system architectures.

• Strong analytical and problem-solving skills, with experience in model-based analysis and simulation.

• Excellent communication and presentation skills, capable of conveying complex technical information clearly.

• Familiarity with configuration management principles for models.

• Ability to mentor and coach others

• Ability to operate as part of an MBSE governance framework

• Customers/sectors: Experience working within the UK MOD

• Multiple years experience working on Defence IT systems 

Our Culture:

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.  

We aim to embed inclusion and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centered on inclusion and diversity.

We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the Oliver.Chung@global.amentum.com

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Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.