Technical Systems Manager

Montash; Perth; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

Montash is recruiting for an OT Technical Systems Manager in Perth, Scotland, with 1–2 days onsite per week. Start date October 2026, inside IR35, MS Teams interview process with a technical test.

Role focuses on governance, lifecycle management and platform upgrades across OT environments in a critical national infrastructure setting. You will own governance across OT platforms (DMS, SCADA, data historians, telemetry), manage cyber security and compliance, and lead platform upgrades and

Qualifications

• Extensive governance, configuration and lifecycle management of OT platforms.
• Experience with DMS, SCADA, data historians and telemetry systems.
• Proven OT cyber security, vulnerability management and compliance experience.
• Experience in regulated or critical national infrastructure.
• Strong supplier and stakeholder management.

Responsibilities

• Own governance, configuration and lifecycle management of OT platforms.
• Define and maintain engineering standards and assurance frameworks.
• Manage OT cyber security, vulnerability management and compliance.
• Plan and deliver platform upgrades and operational readiness.
• Provide technical leadership across OT and control-system environments.
• Manage supplier relationships to ensure delivery against standards.
• Engage with stakeholders in utilities/critical infrastructure.

Skills

OT governance

Lifecycle management

OT cyber security

Supplier management

Regulatory compliance

Stakeholder management

Job description

Location: Perth, Scotland (1-2 days onsite per week)

Start Date: October 2026

IR35: Inside

Interview Process: 1 Stage, MS Teams (technical test required as part of process)

Clearance Provided When Onboarding: SC

We are supporting a major utilities client in hiring an OT Technical Systems Manager to provide technical leadership and oversight across operational technology and control-system environments, with a focus on systems governance, compliance, resilience and lifecycle management.

This is a hands-on technical leadership role covering the governance, configuration and lifecycle management of core OT platforms, including DMS, SCADA, data historians, telemetry and communications systems. The successful candidate will own technical controls and assurance frameworks, manage OT cyber security and compliance requirements, and lead platform upgrades and operational readiness planning across a critical infrastructure environment.

This role suits an experienced OT/Utilities professional with strong technical assurance and supplier management skills, comfortable operating across governance, engineering standards and platform lifecycle management within a regulated, critical national infrastructure setting.

Key Responsibilities

• Own the governance, configuration and lifecycle management of OT platforms, including DMS, SCADA, data historians, telemetry and communications systems
• Define and maintain engineering standards, technical controls and assurance frameworks across OT environments
• Manage OT cyber security, vulnerability management and compliance requirements within a regulated, critical infrastructure environment
• Plan and deliver platform upgrades, operational readiness activity and technical roadmaps across OT systems
• Provide technical leadership and oversight across OT and control-system environments, ensuring resilience and compliance
• Manage relationships with suppliers and technical stakeholders to ensure delivery against agreed engineering and assurance standards
• Strong experience of governance, configuration and lifecycle management of OT platforms, including DMS, SCADA, data historians and telemetry systems
• Experience defining and applying engineering standards, technical controls and assurance frameworks
• Experience with OT cyber security, vulnerability management and compliance within regulated or critical infrastructure environments
• Experience delivering platform upgrades, operational readiness activity and technical roadmaps
• Strong stakeholder and supplier management experience
• Domain experience within the utilities or wider critical national infrastructure sector
• Familiarity with OT security standards and frameworks (e.g. IEC 62443, NIST Cybersecurity Framework, NCSC CAF)
• Experience operating within a regulated environment with formal change and assurance governance