Rate: £800 per day (Outside IR35) Duration: Immediate start - 6 Months Clearance Required: Active SC Clearance (mandatory) Location: Hampshire (2-3 days / week on-site) iO Associates are looking for a highly credible, SC Cleared Enterprise Architect with a strong military background to take ownership of a critical architecture function within a secure, defence-focused environment. This is a leadership role, responsible for setting architectural direction, defining standards, and leading a team of architects operating under strict security and operational constraints. The successful candidate will bring significant gravitas, stakeholder confidence, and experience operating in complex secure environments. Key Responsibilities Lead and manage a team of enterprise and solution architects. Define, own, and enforce enterprise architecture standards and governance. Provide strategic architectural direction aligned to business and operational objectives. Produce and govern enterprise architecture models using Sparx Enterprise Architect. Apply and tailor TOGAF, NAF, and ArchiMate frameworks within a secure environment. Engage with senior military, technical, and commercial stakeholders. Ensure all architectural activity adheres to security, operational, and regulatory constraints. Act as the senior design authority across multiple complex programmes. Essential Skills & Experience Military background is essential Strong understanding of military units, command structures, and security constraints. Good experience with: Sparx EA TOGAF NAF (NATO Architecture Framework) ArchiMate Extensive experience defining enterprise-wide architecture standards. Excellent senior stakeholder engagement and communication skills. Ability to operate with authority, credibility, and confidence at senior levels. If you're actively looking for a new role, or open to a confidential discussion, please don't hesitate to apply now for more information.