Defence and government infrastructure: design, deployment, and field operations
G3 Systems designs and deploys resilient infrastructure for defence and government clients, with a core focus on modular, containerised systems that operate in remote and austere environments. The stack is heavy on project management (Primavera P6, Microsoft Project) and design automation (AutoCAD, Inventor, Trimble MEP), reflecting the complexity of coordinating large-scale deployments. Active hiring is concentrated in engineering roles, and internal pain points centre on managing attrition within that function and ensuring operational readiness of deployed systems — suggesting the company is scaling delivery capacity while facing retention pressure in its technical core.
G3 Systems, founded in 2001 and headquartered in Portland, Dorset, delivers end-to-end solutions across modular infrastructure, construction, facilities operation, and defence support services. The firm works primarily with government and military clients, providing design, build, and in-service support for mission-critical systems deployed globally. Current project activity spans deployable technical equipment in the Netherlands, defence and government infrastructure programs, and high-profile international initiatives. With 501–1,000 employees, the company combines technical design capability with embedded operational support, managing complex engineering delivery, supplier coordination, and regulatory compliance across multiple jurisdictions.
Primarily Primavera P6 and Microsoft Project for scheduling, AutoCAD and Autodesk Inventor for design, Trimble MEP for MEP modelling, and the Microsoft Office suite for documentation and delivery. DIALux is used for lighting design.
Portland, Dorset, United Kingdom. The company is currently hiring in the UK and Netherlands.
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