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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Engineer - **Company:** Mott MacDonald - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Configuration Management, Network Interface Controllers, Requirements Management, Software Requirements Analysis, Subsystems, Systems Architecture, Systems Integration, Reliability Availability Maintainability and Safety Software - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840656831-senior-systems-engineer ## About the Role * Strong understanding of systems engineering techniques applied across the entire engineering lifecycle, with demonstrable experience in a significant portion of the lifecycle * Strong stakeholder management skills with the ability to communicate complex concepts clearly * Strong background in requirements development, preferably for infrastructure projects * Knowledge and experience in applying a Model-Based Systems Engineering (MBSE) approach, including system architecture development against an Architectural Framework * Knowledge of System Integration, Test, Evaluation and Acceptance strategies * Proficiency in use of typical systems engineering toolsets, e.g. for requirement management (DOORS, or similar) and architecture definition (Sparx EA, or similar) * Excellent written communication skills with a methodical, detail-focused approach * Preferably experience in infrastructure projects and ideally the nuclear sector. However, experience in developing complex systems in any highly regulated, multi-disciplinary engineering industry is valued * Degree level qualification, or equivalent, in a technical discipline * Preferably professionally registered as an engineer, or willing to work towards ## Description Our Nuclear; Defence and Civil division is looking for a Senior Systems Engineer. This role involves working closely with clients, designers, other systems engineers. You will lead stakeholder workshops, develop system architectures, and will be expected to meet deadlines set for key systems engineering deliverables, including: * Project Systems Engineering Management Plan (SEMP) * Requirements and Acceptance Management Strategy (RAMS) & Plan (RAMP) * Interface Management Plan * System Requirements Specification * System Architecture Description * System/ Subsystem Design Descriptions * Interface Control Documents * System Integration Management Plan Our team provides a range of key services, including: * Requirements Management * System Architecture Development and Modelling * Technical Interface Management and System Integration * Design Assurance, Verification, and Validation Management * Configuration Management Key responsibilities and duties include: * Influence, capture and translate stakeholder vision and define the scope and boundary of the system, along with its Concept of Operations * Propose, develop and manage system requirements throughout the system lifecycle, using an appropriate requirements management tool * Develop all required system architectural views (functional and physical), including, but not limited to Functional, System and Spatial Breakdown Structures * Apply appropriate scenario modelling and role modelling techniques to contribute to capability assurance evidence * Work with designers to define internal and external system technical interfaces * Identification and management of technical assumptions, dependencies and constraints * Develop and review systems engineering artefacts, as necessary, to support technical reviews and client deliverables * Generate and manage objective Verification & Validation evidence * Support configuration management of the system design baseline and contribute to impact assessments and management of technical change * Organise and lead stakeholder workshops, defining metrics and acceptance criteria * Communicate complex technical content clearly to stakeholders at all levels and collaborate effectively across multi-disciplinary engineering teams * Produce high quality technical reports, presentations and project artefacts as required by company processes and project delivery * Support and mentor junior staff, overseeing task supervision and professional development, * Life assurance equal up to 4 x your basic salary, with an option to increase the level of cover to 6 x your salary. * Our income protection scheme provides a financial benefit, as well as absence and return to work support due to long-term illness or injury. * Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing. * As an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes. Employee Ownership * Our employee ownership model means no external investors, just us, creating a culture of shared success. * Our employees have a stake and a voice in our business, giving them a direct connection to our success through our personal and group performance bonuses. * As your career grows, so does your stake, recognising your long-term impact and contribution. * Your voice matters, with the opportunity to connect directly with senior leadership through formal channels to help shape our future. * For our senior roles you will have a direct pathway towards ownership from day one. Health and wellbeing * Private medical insurance for all UK colleagues. * Health cash plan to support you with every day health costs and treatments. * Access to Peppy, providing free support from menopause experts for all UK colleagues. * A variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family. * Ability to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too. ## Related Videos - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai) - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Automated Driving - Why is it so hard to introduce](https://www.wearedevelopers.com/videos/628-automated-driving-why-is-it-so-hard-to-introduce) - [Physical AI: The Era of Intelligent Machines](https://www.wearedevelopers.com/videos/100141-physical-ai-the-era-of-intelligent-machines) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ## Related Articles - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top Characteristics of a Software Engineer](https://www.wearedevelopers.com/magazine/166-top-characteristics-of-a-software-engineer) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)