OT Controls Engineer - Substation Automation & Security

Sword Services Greece S.A.; Glasgow; On-site; GBP 65,000 - 95,000; Full time

Benefits offered by this job

Personalised Career Development

Flexible working

Excellent benefits package

Job summary

Sword is seeking an OT Controls Engineer to shape standardized, secure control system solutions for substations and electricity networks. You will join a Technology Standards function defining policy, equipment, and configurations, contributing to scalable and cyber-secure architectures.

The role involves engineering standards, RTU builds, testing, vendor evaluation, AutoCAD schematics, and collaboration with cyber security and operations teams to deliver practical, compliant solutions.

Qualifications

• Degree or equivalent experience in Electrical Engineering, Control Systems, or a related discipline
• OT cyber security frameworks such as IEC 62443
• Industry certifications such as CCNA, CompTIA Security+, or RTU/SCADA certifications

Responsibilities

• Develop, review and maintain engineering standards for substation control systems, including RTUs, telecontrol and automation equipment
• Produce detailed technical specifications for control system components and ensure alignment with operational and regulatory requirements
• Design and implement structured test plans to validate equipment against defined specifications
• Carry out technical evaluation and assurance of vendor solutions prior to approval for deployment
• Develop, configure and test standardised RTU builds and control system configurations to ensure repeatability across sites
• Produce engineering schematics, control cabinet layouts and wiring diagrams using AutoCAD
• Support the development of standardised substation control system designs and architectures
• Work with industrial communication protocols including DNP3 (essential) and IEC 61850 (desirable)
• Contribute to the implementation of secure-by-design principles within OT environments, including segmentation, access control and system hardening
• Collaborate with engineering, cyber security and operational teams to ensure solutions are practical, deployable and aligned to standards
• Support the wider digitisation of control systems, ensuring solutions are scalable, maintainable and future-ready
• Experience working within operational technology or control system environments, ideally within utilities, energy or industrial infrastructure
• Strong experience designing, configuring or commissioning substation control systems, telecontrol or automation equipment
• Hands-on experience configuring RTUs (e.g. Schneider, Hitachi/ABB, ZIV, SEL or equivalent platforms)
• Strong understanding of industrial communication protocols, particularly DNP3 (essential)
• Familiarity with IEC 61850 (desirable)
• Knowledge of electricity distribution networks and associated engineering standards, codes and regulatory frameworks (highly desirable)
• Experience producing engineering drawings and schematics using AutoCAD
• Understanding of substation protection and control schemes (desirable)
• Awareness of OT cyber security principles and the ability to apply secure configuration and network segmentation practices
• Strong analytical, problem-solving and documentation skills
• Ability to communicate effectively with both technical specialists and wider stakeholders

Skills

DNP3 protocol

IEC 61850 knowledge

OT cyber security awareness

Substation control systems experience

Stakeholder communication

Education

Degree in Electrical Engineering or related

Tools

AutoCAD

RTU configurations

Job description

Sword is seeking an OT Controls Engineer to shape standardized, secure control system solutions for substations and electricity networks. You will join a Technology Standards function defining policy, equipment, and configurations, contributing to scalable and cyber-secure architectures.

The role involves engineering standards, RTU builds, testing, vendor evaluation, AutoCAD schematics, and collaboration with cyber security and operations teams to deliver practical, compliant solutions.