Technical Support Manager

Montash; Perth; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

Montash is seeking an OT Technical Support Manager in Perth, Scotland, to lead the operational support, maintenance and resilience of high-availability OT systems, including DMS, SCADA, data historians and telemetry.

You will own incident management, fault diagnosis, recovery, and drive patching and vulnerability remediation, while managing a technical team and coordinating with stakeholders in a regulated national infrastructure environment. The role requires 1–2 days onsite per week.

Qualifications

• Experience in the support and operational management of OT platforms such as DMS, SCADA, data historians and telemetry systems.
• Proven ability to manage incidents, diagnose faults and ensure recovery in high-availability environments.
• Experience with patching, vulnerability remediation and maintenance activities in OT/ICS environments.
• Ability to allocate resources, map capabilities and coach technical teams to improve service delivery.
• Strong leadership and stakeholder management experience in regulated infrastructure contexts.

Responsibilities

• Lead the day-to-day operation and management of OT platforms (DMS, SCADA, historians, telemetry, comms).
• Own incident management, fault diagnosis, recovery and resilience across high-availability OT environments.
• Oversee OT patching, vulnerability remediation and maintenance activities per schedule and compliance requirements.
• Manage resource allocation, capability mapping, coaching and development across the team.
• Provide strong operational leadership and ensure service delivery commitments are met.
• Maintain relationships with stakeholders and suppliers to coordinate support.

Skills

OT platforms management

Incident management

Patch management

Resource allocation

Stakeholder management

Operational leadership

Job description

Job Title: OT Technical Support Manager

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

Contract Length: 6 months

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 Support Manager to lead the operational support, maintenance and resilience of high-availability operational technology (OT) systems, with a focus on incident response, service delivery, patching and vulnerability remediation.

This is a hands‑on operational leadership role covering the day‑to‑day support and operational management of core OT platforms, including DMS, SCADA, data historians, telemetry and communications systems. The successful candidate will own incident management, fault diagnosis and recovery within a high‑availability environment, lead OT patching and vulnerability remediation activity, and manage resourcing, capability and development across a technical team.

This role suits an experienced OT/Utilities operations professional with strong incident management and team leadership skills, comfortable owning service delivery and stakeholder relationships within a regulated, critical national infrastructure setting.

Key Responsibilities

• Lead the operational support and day‑to‑day management of OT platforms, including DMS, SCADA, data historians, telemetry and communications systems
• Own incident management, fault diagnosis, recovery and operational resilience across high‑availability OT environments
• Lead OT patching, vulnerability remediation and maintenance activity in line with agreed schedules and compliance requirements
• Manage resource allocation, capability mapping, coaching and development across the technical support team
• Provide strong operational leadership, ensuring service delivery commitments are consistently met
• Manage relationships with stakeholders and suppliers to ensure effective, coordinated operational support

Essential Skills

• Strong experience in the support and operational management of OT platforms, including DMS, SCADA, data historians and telemetry systems
• Experience in incident management, fault diagnosis, recovery and operational resilience within high‑availability environments
• Experience with OT patching, vulnerability remediation and maintenance activities
• Experience with resource allocation, capability mapping, coaching and development of technical teams
• Strong operational leadership and stakeholder management experience

Desirable Skills

• Domain experience within the utilities or wider critical national infrastructure sector
• Familiarity with OT security standards and frameworks (eg IEC 62443, NIST Cybersecurity Framework, NCSC CAF)
• Experience operating within a regulated environment with formal incident and change management processes