OT Cybersecurity Engineer

Infosec; Rochester; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive compensation

Professional development

Challenging projects

Supportive work environment

Comprehensive benefits

Job summary

Infosec in the United Kingdom is seeking an OT Cybersecurity Engineer to join its team, focusing on the secure development and implementation of cybersecurity policies, processes, and controls for Operational Technologies (OT). You will support threat and risk assessments, provide secure design guidance, and ensure firmware and hardware security across OT metering and embedded systems.

The role requires familiarity with ISA/IEC 62443 and OT protocols, working with engineers and testers to meet

Qualifications

• Experience in cybersecurity with exposure to OT, ICs, or SCADA environments.
• Familiarity with ISA/IEC 62443 framework and OT security principles.
• Degree in Electrical/Computer Engineering or Computer Science, or equivalent.

Responsibilities

• Support threat and risk assessments for client OT products and services.
• Conduct OT risk assessments for components within solutions.
• Provide secure design and architecture support following Purdue Levels 0–3.
• Contribute to security baselines, code-signing, and secure boot for OT metering and embedded systems.
• Analyse firmware vulnerabilities using appropriate tools without disrupting operations.
• Support security testing throughout the project lifecycle and factory acceptance tests.
• Integrate OT asset visibility and threat detection platforms.
• Maintain compliance with ISA/IEC 62443, NIST SP 800-82, and other energy-sector frameworks.
• Provide procedural and technical cybersecurity guidance to designers, engineers, testers.
• Monitor cybersecurity targets and suggest improvements proactively.

Skills

OT security

ISA/IEC 62443

Firmware & hardware security

OT protocols

Problem solving

Team collaboration

Education

Electrical/Computer Engineering or Computer Science degree

Job description

Our client, a leading firm in the cyber security sector, is currently seeking an OT Cybersecurity Engineer to join their dynamic team. This permanent position is focused within the energy industry, playing a crucial role in ensuring the secure development and implementation of cybersecurity policies, processes, and controls for Operational Technologies (OT).

Key Responsibilities

• Support the Threat and Risk Assessment process for client products, solutions, and services.
• Conduct cybersecurity risk assessments for OT components within solutions and services.
• Provide secure design and architecture support for OT projects following Purdue Model principles (Levels 0-3).
• Contribute to security baselines, code-signing processes, and secure boot architecture for OT metering and embedded systems.
• Analyse firmware vulnerabilities using appropriate tools without impacting operational availability.
• Support security testing throughout the project lifecycle, ensuring security factory acceptance tests are undertaken.
• Integrate OT asset visibility and threat detection platforms.
• Maintain compliance with energy sector regulations and frameworks, including ISA/IEC 62443, NIST SP 800-82, and others.
• Provide procedural and technical cybersecurity advice to project designers, engineers, and testers.
• Monitor and report on cybersecurity target achievements and proactively suggest improvements.

Job Requirements

• Experience in cybersecurity with exposure to Operational Technology (OT), ICs, or SCADA utility environments.
• Working knowledge of core OT security principles, technologies, and processes, including ISA/IEC 62443 framework.
• Understanding of firmware and hardware security concepts, including cryptographic signing and hardware security modules (HSMs).
• Familiarity with sector-specific protocols such as DNP3, IEC (phone number removed)-104, Modbus, and OPC UA.
• Skills in problem-solving, analytical abilities, and strong organisational skills.
• Relevant degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent experience.
• Relevant certifications such as GICSP, ISA/IEC 62443 Specialist, or GRID are desirable.
• Ability to work effectively and responsibly without close supervision, supporting a collaborative team environment.

Benefits

• Competitive compensation package
• Opportunity for professional development and training
• Work on a variety of challenging projects
• Supportive and inclusive work environment
• Comprehensive employee benefits package

If you are a skilled OT Cybersecurity Engineer looking to advance your career in a forward-thinking and prestigious company, we would love to hear from you.