Senior HV Design Engineer

Designer Group; Dublin; Hybrid; EUR 70,000 - 110,000; Full time

Job summary

Designer Group is seeking a Senior HV Design Engineer to lead HV design packages for substations across Europe, guiding teams from concept to energisation.

You will apply IEC/IEEE standards, develop protection schemes, review diagrams, and mentor junior engineers. A Master’s in Electrical Engineering and 5+ years’ HV experience are required; ETAP, EPLAN, AutoCAD, CYMCAP and CDEGS proficiency is essential. Hybrid/remote work is available.

Qualifications

• Master’s degree in Electrical Engineering with a focus on Power Systems.
• Minimum 5 years of HV design experience in utility or HV contractor environments.
• Proficiency with design and analysis software ETAP, EPLAN, AutoCAD, CYMCAP and CDEGS.
• Proven ability to lead engineering deliverables and mentor junior engineers.
• Excellent communication and interpersonal abilities.

Responsibilities

• Serve as the technical authority for HV design and delivery from concept to energisation.
• Develop HV layouts, design philosophies, and project electrical standards per IEC/IEEE/EN.
• Lead protection and control system design, interlocking logic and control architectures for AIS and GIS substations.
• Review schematics, wiring diagrams, and single-line diagrams for clarity and constructability.
• Lead HV system studies: fault level, protection coordination, arc flash, load-flow analysis.
• Support pre-commissioning and commissioning activities with site teams.
• Act as primary technical interface with clients, utilities, and Owner’s Engineers.
• Ensure compliance with safety, technical and regulatory requirements.
• Collaborate with civil/structural teams to ensure proper substation layouts.
• Maintain design logs and resolve design comments and queries from utilities.
• Prepare and submit full design packages for stakeholder review and approval.
• Develop procurement specs for HV equipment (transformers, switchgear, earthing, NERs).
• Participate in technical meetings representing engineering positions.

Skills

Strong technical leadership

Excellent communication

Interpersonal skills

Mentorship

Education

Master’s degree in Electrical Engineering (Power Systems)

Tools

ETAP

EPLAN

AutoCAD

CYMCAP

CDEGS

Job description

Senior HV Design Engineer

We are seeking an experienced Senior High Voltage (HV) Design Engineer to support a growing portfolio of substation projects across Europe. This role offers the opportunity to lead complex HV design packages, influence engineering strategy, and work alongside multidisciplinary teams delivering critical infrastructure. The position is primarily office‑based, with flexibility for hybrid or remote work where appropriate.

Key Responsibilities

• Serve as the technical authority for the design and delivery of HV electrical systems, ensuring design integrity, regulatory compliance, and performance from concept through to energisation.
• Develop HV system layouts, design philosophies, and project‑specific electrical standards in accordance with IEC, IEEE, EN, and relevant utility requirements.
• Lead the design and approval of HV protection and control systems, including protection schemes, interlocking logic, and control architectures for AIS and GIS substations.
• Oversee the creation and review of schematic diagrams, protection and control wiring diagrams, and single‑line diagrams, ensuring technical clarity and constructability.
• Lead all HV system studies, including fault level analysis, protection coordination, arc flash studies, voltage regulation, and load‑flow assessments.
• Provide technical support for pre‑commissioning and commissioning activities, working closely with site teams through energisation and project handover.
• Act as the primary technical interface with clients, utilities, and Owner’s Engineers throughout the project lifecycle.
• Ensure compliance with all project‑specific safety, technical, and regulatory requirements.
• Collaborate with civil and structural teams to ensure substations are designed to accommodate all electrical equipment, operational clearances, and layout requirements.
• Manage and resolve design comments and technical queries from utilities and Owner’s Engineers, maintaining structured design logs.
• Prepare and submit complete design packages for review and approval by stakeholders and utility partners.
• Develop procurement specifications for primary plant and HV equipment, such as transformers, HV switchgear, circuit breakers, earthing systems, and neutral earthing resistors (NERs).
• Participate in technical meetings with utilities and Owner’s Engineers, representing the engineering position of the organisation.
• Provide mentorship and guidance to junior and graduate engineers, encouraging best practice and technical growth.

• Master’s degree in Electrical Engineering, with a focus on Power Systems.
• Minimum of 5 years’ experience in a similar HV design role within a utility or HV contractor environment.
• Proficiency with design and analysis software such as ETAP, EPLAN, AutoCAD, CYMCAP, and CDEGS.
• Strong technical leadership skills and proven ability to manage engineering deliverables.
• Excellent communication and interpersonal abilities.
• Proactive team player with strong problem‑solving skills and initiative.
• Experience in on‑site commissioning activities is highly desirable.