Application Architect – Data Centre - Inside IR35

Application Architect – Data Centre - Inside IR35
We’re seeking an experienced Application Architect to support a transformation programme across an enterprise-scale physical data centre environment. The role blends solution architecture, service delivery, and consultative client engagement, helping design, document, and guide the implementation of application solutions across a complex on-premise infrastructure landscape.
The role will require 2-3 days a week in London and will suit locally based candidates. 
Key Responsibilities

Define and document application architecture for on-premise and hybrid environments.
Lead design workshops and working sessions with technical and business stakeholders.
Produce clear architecture artefacts — solution designs, integration diagrams, and transition plans.
Advise on how applications interact with physical data-centre infrastructure
Support service delivery alignment — ensuring designs meet operational, performance, and availability needs.
Provide hands-on consultancy and technical leadership throughout delivery and handover.Essential Skills & Experience

Proven experience as an Application or Solution Architect within large, multi-site data-centre environments.
Strong understanding of physical infrastructure (racks, cabling, servers, networking) and how it supports enterprise applications.
Knowledge of service delivery principles (incident, change, capacity, availability).
Excellent documentation and presentation skills.
Comfortable in client-facing, consultative roles — leading discussions and influencing outcomes.
Ability to work across technical and non-technical teams to drive consensus.Desirable

Experience with data-centre migration or consolidation projects