You will provide senior technical leadership for DEFRA’s End User Infrastructure estate, covering devices, endpoints, operating systems, application delivery, and modern workplace platforms. You will lead the architecture for complex and high‑risk services and change initiatives, defining domain standards, patterns, and roadmaps aligned to enterprise strategy, security requirements, and cross‑government standards. Working across multidisciplinary teams, you will: Lead and assure technical designs and architectural decision‑making Guide teams and suppliers to deliver coherent, secure, operable, and value‑for‑money solutions Identify and manage architectural risks across multiple services Communicate complex technical issues clearly to both technical and non‑technical stakeholders Support and develop architectural capability through mentoring and collaboration This role suits an experienced Technical Architect who can balance strategic thinking with hands‑on design leadership in a complex organisational environment.