Solution Architect (Operating Systems) | up to £800/day (Inside IR35) | 12-Month Contract | Hybrid (London or Bristol - 3 days on site)

We are seeking an experienced Solution Architect (Operating Systems) to lead the design and deployment of secure Windows and Linux-based environments within a highly secure programme. This is a critical role offering long-term engagement and the opportunity to shape infrastructure architecture from initial design through to delivery.

Key Responsibilities:

Act as the Solution Architect and Subject Matter Expert (SME), providing expert-level design input on secure operating system deployment and configuration.
Develop High-Level Designs (HLDs) and Architecture Overview Documents for Microsoft Windows Server/Desktop and enterprise Linux environments.
Produce Low-Level Designs (LLDs) and detailed configuration documentation to support OS migration and deployment activities.
Lead the end-to-end technical solution delivery, from initial design through to implementation and operational readiness.
Collaborate within a wider project delivery team, contributing to design workshops and ensuring architectural consistency across the project.
Support project governance, including engagement with risk, compliance, and project management frameworks.
Contribute to the design and creation of test documentation to support solution validation and assurance.

Required Skills & Experience:

Proven track record in designing and delivering operating system solutions in high-security or complex enterprise environments.
Deep understanding of Microsoft Windows Server/Desktop and enterprise Linux distributions (e.g. RHEL, Ubuntu, CentOS).
Strong cross-team collaboration skills with the ability to influence and engage diverse stakeholders.
Excellent written and verbal communication with a strong attention to detail.
Familiarity with automation and scripting for OS deployment is a plus.

This is an excellent opportunity for a Solution Architect to play a key role in delivering secure infrastructure solutions on a high-impact programme. If you have the relevant expertise, we encourage you to apply.