Service Architect

Mozaic Services Ltd; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading consultancy firm in London is seeking a Service Architect to design and lead end-to-end service models. The role involves collaborating with technical teams to ensure service delivery is strategically aligned and technically sound. The ideal candidate will have a proven track record in service design within large organizations and possess excellent stakeholder engagement skills. Knowledge of ITIL4 and ServiceNow is desirable. This role offers a competitive reward package within a collaborative culture.

Benefits

Competitive reward package

Collaborative culture

Career development opportunities

Qualifications

• Proven ability to design services within large organizations.
• Strong knowledge of service integration and sourcing strategies.
• SC cleared or clearable candidates are preferred.

Responsibilities

• Design and document E2E service models.
• Lead development of service blueprints and catalogues.
• Contribute to governance boards and provide technical assurance.

Skills

Service design in large organisations

Stakeholder engagement

Service integration and sourcing strategies

Knowledge of GDS/TCoP

Tools

ServiceNow

ITIL4

Job description

Service Architect

Open Opportunity | London, UK

About the role

The Company

Mozaic is an innovative and growing Operating Model Transformation Consultancy. We work with large organisations at CIO level, to assess and transform their digital operations. We have an outstanding reputation in this field and our customer base includes many household names across numerous different industries.

Background and Experience

As a Service Architect, you will play a critical leadership role in shaping, designing, and assuring E2E service models. This role combines architectural rigour with delivery practicality, ensuring that services are operationally viable, technically sound, and aligned with strategic outcomes. You will work in a blended team, supporting the design and delivery of scalable, resilient, and user‑centric services.

Responsibilities

• Design and document E2E service models spanning people, process, data, technology, and supplier ecosystems.
• Lead the development of service blueprints, service catalogues, interface definitions, and runbooks for business‑critical functions.
• Lead service design governance in collaboration with the client Architectural governance team, ensuring alignment to their standards.
• Produce and assure design artefacts, conforming to agreed policies, taxonomies, security controls, and accessibility requirements.
• Actively contribute to Governance Boards, providing technical service assurance, dependency management, and risk mitigation inputs.
• Map and manage technical and supplier interdependencies, ensuring clean transitions of contracts, data, infrastructure, and support models.
• Lead architectural alignment across workstreams, identifying and mitigating cross‑cutting constraints, risks, and duplication.
• Work closely with Enterprise Architects, Technical SMEs, ServiceNow platform leads, Delivery Managers, and Business Analysts to ensure that service architecture is both strategically aligned and practically implementable.
• Coach client teams on operating model design, governance frameworks, and supplier/service integration principles to ensure long‑term capability uplift.

Essential Skills

• Strong track record designing services in large organisations
• Deep knowledge of service integration, sourcing strategies, enterprise platforms
• Familiarity with public sector policy, digital governance (GDS/TCoP), and secure service design standards
• Excellent stakeholder engagement skills
• SC cleared OR Clearable

Desirable Skills

• Working knowledge of Product and Platform operating models
• Working knowledge of ITIL4
• Working knowledge of ServiceNow
• Experience supporting large‑scale mergers, acquisitions, or transformations

Mozaic’s Commitment to Diversity and Inclusion

Mozaic-Services Limited is dedicated to encouraging a supportive and inclusive culture amongst its workforce. Our aim is to ensure that all Employees, Associates and job applicants are given equal opportunity and that our organisation is representative of all sections of society.

Reward Package

We offer a competitive reward package, collaborative culture and fulfilling client engagements that will help you develop your career.