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# Weapon System Architect (IAS)

- **Company:** Thales Group
- **Location:** Downpatrick, United Kingdom
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Software Requirements Analysis, Systems Modeling Language, Systems Architecture, UML, SC Clearance
- **Published:** November 2, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/weapon-system-architect-ias/54860165

## About the Role

Ability to work with state-of-the-art leading edge technology
Developing solutions to complex problems on cutting edge defence equipment to deliver enhanced capabilities
Working with a highly skilled, dynamic and forward-thinking team
A growing business with great career opportunities, Acquired degree-level qualification in a scientific, engineering or numerate discipline (or equivalent experience), with the ability to obtain and maintain UK SC clearance
Demonstrated systems engineering expertise across the full lifecycle, including requirements capture, system architecture, design, integration, testing and verification of complex systems
Proven ability to define, manage and decompose requirements into robust system specifications, architectures, interfaces and behaviours using structured engineering methodologies
Demonstrated analytical, critical-thinking and problem-solving capabilities, with a track record of making sound decisions and delivering results in complex environments
Proven communication and stakeholder management skills, with the ability to influence, collaborate and communicate complex technical concepts to diverse audiences
Acquired knowledge of systems modelling (e.g. UML, SysML), defence architectures, standards and interface protocols, alongside an understanding of relevant safety, security, environmental and regulatory requirements

Desirable
Acquired knowledge of Air Defence systems, technologies and their operational application
Demonstrated ability to perform effectively within multidisciplinary teams, delivering results in pressured and time-sensitive environments
Achieved Chartered Engineer status, or demonstrated commitment to working towards professional accreditation

## Description

Capture and translate customer, user and business needs into clear system requirements, use cases and functional definitions
Define and develop system architecture, interfaces, behaviours and flow-down requirements, working closely with technical specialists to optimise performance
Assess user deployment scenarios and evaluate candidate technologies, including emerging and novel solutions, to inform system design decisions
Drive system design maturity through trade studies, analysis, prototyping, integration support and complex fault diagnosis
Lead verification and compliance activities, ensuring requirements are met, while maintaining design documentation and mentoring junior team members