Technical Support Manager

Montash; Perth; Hybrid; GBP 90,000 - 115,000; Full time

Job summary

Montash is recruiting an OT Technical Support Manager to lead operational support, maintenance and resilience of high-availability OT systems, including DMS, SCADA, data historians and telemetry, within a utilities-focused setting.

The role emphasizes incident management, fault diagnosis, recovery, and overseeing OT patching and vulnerability remediation, while guiding a technical team and coordinating with stakeholders in a regulated national infrastructure.

Qualifications

• Experience in operational management of OT platforms (DMS/SCADA/telemetry).
• Strong incident management and fault-diagnosis capabilities in high-availability environments.
• Proven leadership of technical teams and stakeholder management in regulated infrastructure.

Responsibilities

• Lead day-to-day support and management of OT platforms (DMS, SCADA, data historians, telemetry).
• Own incident management, fault diagnosis, recovery and resilience across OT environments.
• Lead patching, vulnerability remediation and maintenance aligned to schedules and compliance.
• Manage resource allocation, capability mapping, coaching and development of the technical team.
• Ensure service delivery commitments are met and maintain strong stakeholder relationships.

Skills

OT Operations

Incident Management

Team Leadership

SCADA & DMS

Telemetry Systems

Vulnerability Remediation

Regulated Environments

Tools

IEC 62443

NIST CSF

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 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
• 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
• 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 incident and change management processes