Senior Manager System Design Authority & Independent Assurance

Why join Marshall Land Systems in this role?

As the Independent Design Assurance Lead / Systems Design Authority within Marshall Land Systems, you will act as the independent technical representative supporting the Chief Engineer. The role provides objective oversight, governance, and assurance across Land Systems programmes and products, ensuring engineering solutions are technically sound, compliant, safe, and fit for purpose throughout the product lifecycle.

Operating independently from programme delivery teams, you will provide authoritative technical challenge, assess design maturity and technical risk, and maintain confidence that engineering decisions align with customer requirements, business objectives, regulatory obligations, and engineering best practice.

• Act as the independent authority for technical design assurance across Land Systems programmes
• Provide objective assessment of engineering solutions throughout the system lifecycle, from concept development through design, integration, verification, validation, and in-service support
• Conduct independent reviews of system architectures, design solutions, requirements compliance, and technical evidence
• Assess the adequacy of engineering processes, methodologies, and technical decision‑making
• Verify that designs meet contractual, regulatory, safety, quality, and operational requirements
• Ensure appropriate technical risks are identified, managed, and escalated

• Maintain oversight of system‑level technical integrity across programmes and product lines
• Provide authoritative guidance on systems engineering principles, architecture development, requirements management, integration, and verification strategies
• Review and endorse key technical baselines and system design decisions
• Ensure consistency between customer requirements, system architecture, subsystem designs, and verification activities
• Challenge technical assumptions and decisions where evidence is insufficient or risks remain unacceptable
• Support the management of technical debt, concessions, and design deviations

• Support the Chief Engineer in establishing and maintaining effective engineering governance arrangements
• Chair or participate in independent design reviews, technical gate reviews, and assurance boards
• Review engineering deviations, waivers, concessions, and non‑conformances
• Ensure engineering decisions are supported by appropriate evidence and documented rationale
• Monitor adherence to engineering lifecycle processes, standards, and procedures
• Provide assurance input into engineering policy, standards, and continuous improvement initiatives

• Assess programme technical risks and the effectiveness of mitigation strategies
• Review safety cases, hazard analyses, and certification evidence as appropriate
• Ensure compliance with applicable defence standards, legislation, customer specifications, and internal governance requirements
• Support technical investigations and root‑cause analysis activities
• Provide independent assessment of design maturity and readiness at key programme milestones

• Act as a trusted advisor to the Chief Engineer and Engineering Leadership Team
• Engage with Programme Managers, Technical Authorities, Systems Engineers, Design Engineers, Quality Assurance, Safety, and Integrated Logistics Support functions
• Interface with customers, regulators, suppliers, and external technical authorities as required
• Support customer design reviews, technical audits, and assurance activities
• Provide confidence to stakeholders through clear, evidence‑based assurance reporting
• Undertake additional activities as required by line management

• Significant experience delivering complex engineering systems within defence or aerospace
• Extensive experience in systems engineering, technical risk management or engineering governance
• Proven track record of leading independent design reviews and providing authoritative technical assurance across the system lifecycle
• Experience assessing system architectures, requirements management,…