DV Cleared Senior Service Architect – Onsite

Experis; Southampton; On-site; GBP 75,000 - 125,000; Full time

Job summary

Experis is seeking a DV Cleared Senior Service Architect to join a high‑profile programme delivering critical services in a secure environment. You will define and deliver service design artefacts to support successful acceptance and long‑term delivery.

You will work with stakeholders, project teams and technical architects to ensure scalable, compliant service solutions aligned with customer requirements, and you will apply ITIL, ISO 20000, PRINCE2 and SIAM practices throughout the life cycle.

Qualifications

• Strong knowledge of ITIL, ISO 20000, and service management best practices.
• Detailed understanding of ITIL processes, ITSM platforms and tooling, and Enterprise Management tooling.
• Experience designing and implementing service management solutions within complex environments.
• Knowledge of PRINCE2 and Agile project delivery methodologies.
• Experience with UML and BPMN modelling techniques.
• Understanding of SIAM operating models.
• Experience in requirements mapping and compliance assessment.
• Commercial awareness with exposure to SoW and project schedules.
• Strong stakeholder management and cross-functional collaboration.

Responsibilities

• Provide service design direction based on customer requirements and outcomes.
• Produce high-quality service design documentation (HLDs, BPMN, compliance statements).
• Conduct Service Management impact assessments for solutions.
• Facilitate service readiness activities for live transition.
• Lead service transition and service exit management.
• Support through-life management of services and technologies.
• Review peers' service design collateral and provide feedback.
• Identify and escalate risks and issues to the Domain Lead.
• Collaborate with Solution Owners and tech teams to ensure stability and efficiency.
• Contribute to Testing and Security disciplines.

Skills

ITIL & ISO 20000

ITIL processes

ITSM platforms

Enterprise management tooling

Service design

PRINCE2

Agile

UML

BPMN

SIAM

Requirements mapping

Compliance assessment

Stakeholder management

Job description

Experis is seeking a DV Cleared Senior Service Architect to join a high‑profile programme delivering critical services in a secure environment. You will define and deliver service design artefacts to support successful acceptance and long‑term delivery.

You will work with stakeholders, project teams and technical architects to ensure scalable, compliant service solutions aligned with customer requirements, and you will apply ITIL, ISO 20000, PRINCE2 and SIAM practices throughout the life cycle.