Senior Security Engineer

Salary: £80,000 - 80,000 per year

Requirements

• We are looking for experienced engineers from OT security, industrial networking, control systems, cyber security or critical infrastructure backgrounds.
• Ideally, you will bring experience with OT or industrial control system security.
• Ideally, you will bring experience with IEC 62443.
• Ideally, you will bring experience with SCADA, PLCs and HMIs.
• Ideally, you will bring experience with industrial networking and network segmentation.
• Ideally, you will bring experience with enterprise or industrial firewalls.
• Ideally, you will bring experience with vulnerability management and patching.
• Ideally, you will bring experience with industrial protocols such as Modbus, DNP3, IEC 61850, OPC, Profinet or Ethernet/IP.
• Ideally, you will bring experience with Siemens, GE or similar control systems.
• Ideally, you will bring experience in energy, utilities, manufacturing, oil & gas or other critical infrastructure environments.

Responsibilities

• We will design and implement secure OT architectures across renewable generation assets.
• We will lead security reviews and provide technical assurance for new operational technologies.
• We will manage and enhance industrial network security, including firewalls, segmentation and secure remote access.
• We will support OT vulnerability management, patching and lifecycle planning.
• We will work closely with Engineering, Control & Instrumentation and OT teams to securely deploy new systems.
• We will identify and mitigate cyber risks across SCADA, PLC, HMI and industrial control environments.
• We will support large-scale modernisation programmes, transforming legacy systems into secure, resilient platforms.
• We will contribute to regulatory compliance, cyber resilience and OT security standards across the organisation.

Technologies

• Ethernet
• Support
• Network
• PLC
• Profinet
• Security

More

We are offering a Senior Security Engineer role in Glasgow with hybrid working, a salary of up to £81,000 plus a minimum 15% bonus, and travel of around two days per week to operational sites across the UK. We are helping shape the future of renewable energy security across a growing portfolio of hydro, wind, solar, battery storage and gas generation assets. This is a highly visible role within a high-performing, growing team, with significant investment underway, exposure to major transformation programmes, and genuine career progression opportunities as we modernise critical national infrastructure and support the UKs transition to renewable energy.

last updated 33 week of 2026