Service Architect

Sector: Public Sector / Government

Job Title: Head of Service Architecture

Type: Contractor

Location: London

Duration: 6 months initial with potential extension

Vetting: SC / DV security clearance or eligibility would suffice

Our government client is recruiting for a High level Service Architect to join their expanding team within an exciting secure government programme

.
The programme must establish not only the technical platform, but the enduring service model that allows it to operate safely, efficiently and at scale across government and partner organisation

s.We need a Senior Service Architect to lead service architecture design across the service workstream, with particular focus on operational readiness, service acceptance, transition into live service, support model design and supplier/service integratio

n.
Essential Ski

lls
Lead service architec

tureLead Service Architect or equivalent on a major digital, cloud, secure, defence, national security, regulated or large enterprise transformat

ion.Operational readiness and accept

anceDesigned readiness gates, operational acceptance criteria, runbooks, handover models and go/no-go evidence for products moving into live serv

ice.Service transition and dual

-runExperience transitioning from legacy to new services, including phased migration, pilots, early adopters, staged onboarding or dual-run operati

ons.Applied ITIL service manage

mentPractical ITIL-aligned process design across incident, problem, change, release, request, configuration, knowledge and service level managem

ent.Multi-tier/federated sup

portDesigned support tiers, escalation paths, service boundaries, RACIs and OLAs across internal teams, suppliers and partner/user organisati

ons.Secure/high-assurance con

textWorked in secure, regulated, defence, national security, critical infrastructure, public sector or similarly complex enterprise environments. UK SECRET experience is highly desirable, but not the only route

in.Supplier and SIAM integra

tionUnderstands multi-supplier models, retained organisation responsibilities, supplier handoffs, performance measures and operational governa

nce.Commercial/service proposition aware

nessUnderstands how service architecture connects to catalogue, service tiers, standard versus custom requests, supplier obligations, SLAs and cost-to-se

rve.Stakeholder leadership and deli

• veryCan work across senior, technical, operational, commercial, security, supplier and partner stakeholders, turning ambiguity into usable artefacts at p