Senior Enterprise Architect - IT/OT

ARM (Advanced Resource Managers); Glasgow, Aberdeen City; Hybrid; GBP 120,000 - 185,000; Full time

Job summary

ARM (Advanced Resource Managers) is seeking a Senior Enterprise Architect to lead IT/OT architecture across the Transmission portfolio. The role includes governance, assurance, and engagement with senior business and delivery stakeholders.

The position supports hybrid working with 1-2 days onsite in Glasgow or Aberdeen on a 6-month Inside IR35 contract. The candidate should bring extensive enterprise and solution architecture experience in asset-intensive environments.

Qualifications

• Extensive senior-level Enterprise Architecture experience.
• Experience with IT/OT architecture and OT environments.
• Ability to challenge senior stakeholders and suppliers.
• Experience governing architecture across large programmes.

Responsibilities

• Provide senior Enterprise Architecture expertise across the Transmission portfolio.
• Develop and maintain architectural direction with the Architecture Lead.
• Contribute to strategies, target architectures, roadmaps and capability models.

Skills

Enterprise Architecture

Solution Architecture

IT/OT Architecture

Architecture governance

Stakeholder management

Asset-intensive environments

Technical breadth

Tools

Bizzdesign

Job description

Senior Enterprise Architect - IT/OT

6-Month contract - Inside IR35 - market rate

Glasgow or Aberdeen based - 1-2 days onsite

Electricity/Energy sector

Key Responsibilities

Enterprise Architecture

• Provide senior Enterprise Architecture expertise across the Transmission portfolio.
• Work closely with the Architecture Lead to develop and maintain the architectural direction for the function.
• Contribute to the development of strategies, target architectures, roadmaps, capability models and other key architecture artefacts.

Architecture Assurance

• Provide architectural assurance across major projects, programmes and BAU initiatives.
• Review and challenge Solution Architecture produced by project teams, delivery organisations and third-party suppliers.
• Ensure proposed solutions comply with agreed architectural principles, standards, patterns and guardrails.

Project & Programme Engagement

• Work directly with project and programme teams to understand business requirements and architectural implications.
• Provide senior architectural guidance on complex or strategically important initiatives.

IT & OT

• Provide architectural input across both IT and Operational Technology (OT) environments.
• Understand the particular architectural, operational and risk considerations associated with OT environments.
• Work across the IT/OT boundary to ensure appropriate integration and alignment.

Architecture Governance & Alignment

• Work closely with Group Architecture to ensure Transmission architecture activity aligns with Group processes, standards and governance mechanisms.
• Support the consistent application of architecture processes and standards across projects and programmes.

Solution Architecture

While the primary focus of the role is Enterprise Architecture and assurance, the successful candidate will also:

• Apply substantial Solution Architecture experience when reviewing and shaping complex solutions.
• Provide hands-on architectural input where required for complex BAU or operational requirements.
• Support the Architecture Lead and wider team on particularly complex or strategically significant solution decisions.
• Act as a senior technical and architectural sounding board for other architects.

Experience & Skills

Essential

• Extensive senior-level Enterprise Architecture experience.
• Significant previous experience in Solution Architecture.
• Experience with Operational Technology (OT) and IT/OT architecture.
• A strong technical breadth and understanding of modern technology landscapes.
• Experience providing architecture assurance and governance across large-scale programmes and projects.
• Experience working with senior business, technology and delivery stakeholders.
• Strong understanding of architectural principles, standards, patterns, roadmaps, capability models and governance.
• Experience working in complex, large-scale organisations.
• Experience working in an asset-intensive environment.
• Ability to operate independently and provide credible architectural challenge to senior stakeholders and suppliers.

Highly Desirable

• Experience within the electricity industry, particularly transmission, distribution or generation.
• Wider energy or utilities sector experience.
• Experience working in other large-scale asset-based organisations.
• Experience working from an architecture function within major capital delivery programmes.
• Understanding of large infrastructure or asset investment environments.
• Experience working across domains such as capital projects, asset management, operations or customer.
• Experience with Bizzdesign or comparable Enterprise Architecture repositories.
• Experience working within a federated architecture model alongside a Group or enterprise architecture function.