Senior HV Protection and Control Engineer

Senior HV Protection and Control Engineer

Remote working with visits to site as required

Permanent position

As a Senior HV Protection & Control Engineer within the Asset Integrity Management (AIM) Team and reporting directly to the Global Head of Engineering, you will act as the technical authority for protection, control, and secondary systems across offshore and onshore OFTO transmission assets. The role ensures protection integrity, Grid Code compliance, and effective fault response throughout the asset lifecycle. You will lead protection engineering activities, approve protection philosophies and settings, support HV operations, and provide expert input during faults, outages, and system events.

• Perform protection coordination studies, relay setting reviews, discrimination assessments, and secondary system checks.
• Review CT/VT performance, inter-tripping schemes, GOOSE messaging, interlocking logic, and protection interface signals.
• Ensure protection schemes maintain sensitivity, selectivity, stability, and security.
• Support the maintenance and testing of protection systems including secondary injection, functional checks, tripping logic, and scheme validation.
• Maintain governance of protection configuration, documentation and change control.
• Develop and deliver protection testing programmes: secondary injection, primary injection where required, functional and logic tests, end-to-end checks and breaker performance verification.
• Support energisation activities, operational readiness checks and controlled switching operations in collaboration with SAPs and Operations.
• Analyse test data and implement corrective actions to maintain protection reliability and compliance.
• Lead analysis of protection relay event logs, SER/SOE data, disturbance records and tripping sequences.
• Support HV switching activities, energisation plans, operational readiness checks and post-fault restoration.
• Review circuit‑breaker timing tests, contact resistance tests, tripping coil performance, auxiliary supply health and protection-related diagnostics.
• Provide engineering support to operations and SAPs during incidents, defects or abnormal conditions.
• Maintain protection portfolios, relay setting databases, secondary wiring schematics and testing records.
• Review defects, alarms and equipment behaviour to identify developing issues in protection or control systems.
• Liaise with SAPs, HV control centre & NESO on protection interfaces, alarms, inter‑tripping signals and telemetry anomalies.
• Support outage planning and operational risk reviews.
• Provide protection and control engineering input into condition assessments, RCA investigations and technical reviews.
• Contribute to optimisation of protection maintenance strategies and improvement of testing methodologies.
• Contribute to asset condition assessments, technical reviews, audits and external client assurance processes.
• Maintain accurate configuration records, documentation and evidence packs for regulatory or client submissions.
• Support development of advanced protection schemes, digital substation solutions (IEC 61850) and integration with SCADA/OT systems.
• Contribute to engineering advisory work for future offshore wind, interconnector or grid compliance projects.
• Share lessons learned and support team capability development.

• Degree qualified in Electrical Engineering or equivalent.
• Chartered Engineer (CEng) or working towards is preferred.
• Extensive experience in HV protection and control within transmission, OFTO or offshore wind environment.
• Proficient with relay families (Siemens, ABB, GE, Schneider) and test systems (Omicron CMC, Test Universe, DIGSI, SIGRA or equivalents).
• Knowledge of Grid Code, ENA standards and HV safety rules. BP141/TP141 authorisation desirable.
• Confident acting as a senior protection authority supporting live HV operations on systems up to 400kV.
• Possibility of offshore work (if desired). Willingness to obtain GWO qualification and ability to pass offshore medical for offshore site visits and familiarity.

• Competitive benefits tailored to the division.
• Opportunities for career growth and visibility across the…