Welcome
to JG Systems Consulting
Delivering assured architectures, MBSE frameworks, and digital engineering capability for defence, aerospace, and safety-critical programmes. Trusted by MOD programmes, primes, and consultancies to reduce architectural risk, improve assurance, and enable confident delivery.
Independent Systems Architecture & MBSE Consultancy
I am an independent systems architect and MBSE specialist with over a decade of experience delivering complex, high-assurance systems across defence, aerospace, space, and naval domains.
I support organisations operating in regulated and safety-critical environments where architectural clarity, governance, and evidence-based decision-making are essential. My work spans system and enterprise architecture, MBSE method design, and technical design authority roles on UK MOD and aerospace programmes.
How I Can Support Your Programme
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System and enterprise architecture definition for complex systems and system-of-systems
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Model-Based Systems Engineering (MBSE) using SysML, NAFv4, UAF, and ArchiMate
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Architecture governance, assurance, and technical design authority support
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Development of MBSE frameworks, modelling standards, and best practice
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Toolchain extension and automation (Cameo, MagicDraw, Sparx Enterprise Architect)
More Than Tool Use — Architecture by Design
I do not simply apply MBSE tools; I design the methods, frameworks, and modelling environments that enable teams to work effectively at scale.
This includes the development of organisation-specific MBSE frameworks, SysML extensions, and Domain-Specific Languages (DSLs) that align architecture, requirements, and governance with ISO/IEC 15288 and MOD policy. These approaches have been adopted across multiple programmes to improve consistency, traceability, and stakeholder confidence.
Relevant Experience
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My experience includes senior architecture and MBSE roles supporting:
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UK MOD programmes including tactical communications and open architectures
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Aerospace and defence primes delivering safety-critical systems
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Naval and space systems requiring high-assurance modelling and analysis
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Enterprise digital engineering and MBSE transformation initiatives
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I have worked as a systems architect, solution architect, enterprise MBSE lead, and technical design authority, interfacing directly with customers, integration partners, and suppliers.
Standards-Led, Evidence-Based Delivery
My work is grounded in recognised international standards and best practice, ensuring architectures are not only technically sound but auditable and defensible.
This includes alignment with:
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ISO/IEC 15288 systems lifecycle processes
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ISO/IEC/IEEE 42010 and 42020 architecture principles
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MOD architectural frameworks (NAFv4, UAF)
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Safety-critical development and assurance expectations
Engagement Model
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I am available for contract and consultancy engagements supporting architecture definition, MBSE framework development, assurance activities, and complex system delivery.
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Engagements can range from short-term technical authority support through to longer-term architecture and digital engineering transformation roles.
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If you are delivering a complex system and need architectural clarity, assured decision-making, or MBSE capability that works in practice, I would be happy to discuss how I can support your programme.
Contact Me
Have a particular challenge you’re trying to deal with? Contact me today and see what I can do for you.
