Systems Engineer

• Apply systems engineering best practice in accordance with ISO 15288 principles and lifecycle processes
• Capture, analyse, manage and validate stakeholder, user and system requirements
• Develop system architectures, concepts of operation and system design solutions
• Produce and maintain systems engineering artefacts throughout the project lifecycle
• Lead systems engineering activities across complex defence and maritime programmes
• Support system modelling, integration, verification, validation and acceptance activities
• Provide technical leadership and guidance to multi-disciplinary engineering teams
• Work with project managers, stakeholders and subject matter experts to ensure programme delivery
• Manage technical risks, assumptions, issues and dependencies
• Review and assure the quality of technical deliverables
• Support compliance with engineering, safety and regulatory standards
• Contribute to technical reviews and customer presentations
• Mentor and support junior systems engineers
• Support development and integration of underwater ranging, tracking and monitoring capabilities for a UK Defence programme

Principal Systems Engineer

• Provide systems engineering and technical leadership across complex defence and maritime products
• Progress defined work packages through design, integration, qualification, test and acceptance
• Take technical ownership of systems engineering work packages to agreed cost, schedule and quality expectations
• Provide technical leadership and mentoring within a multi-disciplinary engineering team
• Manage requirements through capture, analysis, decomposition, traceability, verification and acceptance
• Develop and maintain specifications, interface definitions, compliance evidence, V&V plans and technical reports
• Support system architecture, design development, trade studies and technical decision-making
• Plan and support integration, verification, validation and qualification activities
• Support Factory Acceptance Testing and formal tests through readiness, procedure review, witnessing, fault investigation, evidence capture and issue close-out
• Assess test results and qualification evidence against requirements, identifying gaps, risks and corrective actions
• Support transition of prototypes and development solutions into repeatable, supportable products
• Contribute technical inputs, estimates and delivery approaches to bids and work package planning
• Collaborate with customers, suppliers and internal stakeholders to resolve technical issues and maintain delivery progress
• Apply engineering governance, configuration control, change management and assurance processes

• Build and operate production-grade AI systems using foundation models, retrieval, tool-use and workflow services for regulatory challenges
• Own model and tool integration, retrieval and context assembly, provenance mechanisms, workflow orchestration, evaluation instrumentation and failure handling
• Develop retrieval-augmented generation capabilities, including context and retrieval pipelines, semantic search, structured outputs, evidence references and citation verification
• Design multi-step and agentic workflows with human review, approval, escalation and safe-failure mechanisms
• Implement controls for known AI failure modes and appropriate operational monitoring
• Build agentic orchestration covering planning and replanning, structured tool use, persistent state, semantic and episodic memory, agent hand-offs, execution limits, human interruption and recovery
• Partner with stakeholders to create evaluation datasets and automated testing frameworks
• Measure task success, retrieval quality, source support, robustness, latency, cost efficiency and regression performance
• Build resilience against prompt injection, unsafe tool use, access-control failure, data leakage, unsupported claims, retrieval failures and model or configuration degradation
• Collaborate with Platforms and Engineering, architecture, product and domain specialists across Authorisations, Supervision, Enforcement and AML
• Contribute to CI/CD, release management, runtime operations, engineering quality, supplier oversight, knowledge transfer and organisational capability building

Senior AI Systems Engineer

• Support the growth of Expleo's Naval Mission System capability
• Develop, maintain and govern key systems engineering artefacts throughout the project lifecycle
• Produce and maintain engineering planning artefacts, including ITEAP, ITEP, SEMP and EMP
• Coordinate and administer engineering governance reviews, including PDR, CDR, PRR, TRR, HAT and SAT
• Support programme engineering leads with technical baselines and configuration control
• Manage engineering data packages and controlled documentation
• Coordinate responses to review comments, technical queries and customer observations
• Collate, structure and manage acceptance evidence for contractual compliance and customer acceptance
• Support verification, validation and certification activities through requirements traceability and evidence repositories
• Review acceptance evidence against VCRI requirements and identify gaps, risks and shortfalls
• Assist with engineering metrics, action logs, risk registers and technical governance reports
• Facilitate communication across engineering disciplines, suppliers and customer stakeholders
• Support audits, baseline reviews and programme assurance activities

Senior Systems Engineer

• Support the growth of Expleo's Naval Mission System capability
• Provide systems engineering support across various mission systems
• Generate, develop and maintain mission system architectures, including logical, functional, physical and interface views
• Develop and maintain System Definition Documents defining system scope, functions, subsystems, interfaces, constraints and design characteristics
• Establish, populate and manage requirements acceptance databases
• Maintain requirements traceability from source requirements through allocation to verification, validation and acceptance evidence
• Develop, review and manage Interface Control Documents and associated electrical, data, communications, mechanical and software interface data
• Coordinate interface definition and resolution across suppliers, installation teams and stakeholders
• Support configuration management, engineering change management, baseline control and change implementation
• Use IBM DOORS, Windchill, Microsoft Visio and other systems engineering/PLM tools
• Support Product Lifecycle Management by aligning engineering artefacts, product structures, configuration items and controlled data
• Participate in design reviews, acceptance working groups, configuration reviews and engineering governance meetings
• Assess system-level impacts of design changes, supplier updates and technical queries
• Review and reconcile supplier and subsystem engineering information against the mission system architecture and technical baseline
• Provide systems engineering leadership and technical guidance to the wider engineering team

Principal Systems Engineer – Technical Authority

• Capture requirements from customers and end users, and understand the whole life cycle solution
• Work across requirements, design, implementation, verification, manufacture and support
• Work as part of a team across the breadth of the company to define cost-effective and technically compliant solutions
• Use modelling and simulation to provide early design risk reduction
• Develop test plans, cases and procedures to build evidence of a successfully developed solution
• Work on aerospace and defence projects across land, sea and air domains

Junior Systems Engineer

• Define and implement the systems engineering strategy, lifecycle, standards, governance, and toolset.
• Lead system-level design and requirements decomposition across Product, Architecture, Quantum, Hardware, Software, and Control teams.
• Establish and chair design, readiness, test, and acceptance reviews.
• Manage risks, non-conformances, failure investigations, and corrective actions through closure.
• Maintain system-level plans, dependencies, technical risks, and performance measures.
• Build, lead, and mentor multidisciplinary systems engineering and integration teams.
• Set objectives and KPIs, develop capability, support recruitment, and establish accountability.
• Create effective relationships across research, engineering, product, programme, quality, supply chain, and customer-facing teams.
• Contribute to verification and test strategy for integrated assemblies and systems.
• Ensure compliance with reliability, safety, regulatory, contractual, and quality requirements.
• Contribute to technical strategy and product roadmaps, improving performance, modularity, manufacturability, serviceability, and scalability.

Head of Systems Engineering

• Elicit, analyse, and manage stakeholder and system requirements, ensuring traceability across the lifecycle
• Develop system architectures and design artefacts, including functional, logical, and physical views
• Support decomposition of requirements from system to subsystem and component levels
• Contribute to interface definitions and integration considerations across systems
• Collaborate with architects, developers, and integration teams on coherent and feasible system designs
• Support verification and validation planning, ensuring requirements are testable and aligned to acceptance criteria
• Contribute to systems engineering documentation and governance artefacts in line with MOD and industry standards
• Work on projects for clients across Critical National Infrastructure, National Security, Defence, and Nuclear sectors
• Support development of IT and communication systems across the full engineering lifecycle
• Shape complex Defence systems from concept through design and delivery

• Develop and deliver reactor core design solutions aligned with programme objectives
• Produce and review engineering documentation, including requirements, design descriptions and substantiation reports
• Collaborate with multidisciplinary teams and stakeholders to resolve technical challenges
• Support verification, validation and technical review activities
• Identify and manage technical risks and opportunities
• Drive continuous improvement throughout the design lifecycle

Systems Engineer – Core Design

• Develop and deliver reactor core design solutions aligned with programme objectives
• Produce and review engineering documentation, including requirements, design descriptions and substantiation reports
• Collaborate with multidisciplinary teams and stakeholders to resolve technical challenges and achieve integrated design solutions
• Support verification, validation and technical review activities
• Identify and manage technical risks and opportunities
• Drive continuous improvement throughout the design lifecycle