High-Voltage Engineer

Renvolt Energy; Porto; On-site; EUR 52,000 - 70,000; Full time

Job summary

Renvolt Energy seeks a High-Voltage Engineer to support O&M development across HV substations and PV sites. You will oversee maintenance governance (PTW, LOTO, switching) and ensure safe, reliable operations within our global portfolio.

Ideal candidates hold an Electrical/ Renewable Energy engineering degree with 5+ years HV experience, and are willing to travel worldwide. The role emphasizes governance, fault diagnosis, and technical leadership.

Qualifications

• Engineering degree in Electrical, Renewable Energy, Computer Science or Data Science (Master's is a plus).
• Registered or eligible for registration with the Ordem dos Engenheiros (preferred).
• Minimum 5 years of experience in electrical engineering with focus on HV systems.
• Experience with maintenance management processes (preferred).
• Knowledge of utility-scale PV plant design (preferred).
• Proficient in Microsoft Office and general IT systems.
• Willingness to travel worldwide; short-term mobility required.
• Valid driving licence.

Responsibilities

• Develop and structure HV substation O&M activities.
• Define and optimize maintenance plans.
• Review third-party maintenance reports for accuracy.
• Identify performance improvements and technical solutions.
• Provide HV technical support across PV plants and diagnose faults.

Skills

HV systems

Maintenance management

Troubleshooting

Site inspections

Process definition

Team coordination

Organizational skills

Attention to detail

Education

Engineering Degree (Electrical/ Renewable Energy/ CS/ DS)

Master's degree (a plus)

Registered with Ordem dos Engenheiros (preferred)

Tools

Microsoft Office

Job description

Born from the expertise of teams who have led EPC and O&M services at Voltalia since 2005, Renvolt delivers high-performance service solutions to accelerate the global energy transition. We specialize in solar and storage, operating as a trusted global provider with a strong international track record.

With local teams in 14 countries, more than 400 employees worldwide, and 24/7 support, we partner with clients across all regions to ensure success. Renvolt is supported by a strong investment group that provides long-term stability and reinforces our commitment to sustainable growth.

Our portfolio includes 5.6 GW built and under construction, and 1.9 GW already in operation, demonstrating our capability and reliability in delivering large-scale renewable projects.

We prioritize long-term partnerships grounded in transparency, quality, reliability, ethics, and integrity. Join us and be part of a company driving sustainable energy forward.

At Renvolt, we welcome individuals from all backgrounds, whatever your race, ethnicity, gender, nationality, age, disability, sexual orientation, and experience. In our company, diversity drives innovation and contributes to a workplace where everyone can thrive. Ready to make an impact? Bring your energy-let's power a sustainable future together!

Renvolt is a subsidiary of Voltalia Group.

Find out more about Renvolt at renvolt.energy

YOUR MISSIONS

Renvolt is seeking an High-Voltage Engineer to support O&M development and provide technical expertise across HV substations and PV sites. The role includes maintenance optimization, fault support, and governance of HV safety rules and procedures (PTW, LOTO, switching), ensuring safe and reliable operations across our portfolio.

HV O&M Business Development

• Develop and structure HV substation O&M activities;
• Define and optimize maintenance plans;
• Review and critically assess third-party maintenance reports;
• Identify performance improvements and technical solutions.

HV Technical Support (PV Sites)

• Provide HV technical support across PV plants;
• Support fault diagnosis and troubleshooting;
• Validate maintenance activities on HV equipment;
• Perform site inspections and technical assessments.
• Develop, implement and govern Electrical Safety Rules and SAP/AP framework;
• Define and continuously improve HV procedures (PTW, LOTO, HV switching);
• Assess, validate and authorize SAP/AP competencies;
• Act as SAP or support SAP duties for HV operations;
• Ensure compliance and full traceability of HV activities.

Please note that this list of responsibilities is not exhaustive, and additional duties will be assigned as needed by the company.

QUALIFICATIONS & EXPERIENCES

The ideal candidate will be/have:

• Engineering Degree (Electrical, Renewable Energy, Computer Science or Data Science); Master's degree is a plus;
• Registered or eligible for registration with the Ordem dos Engenheiros (preferred);
• Minimum 5 years of experience in electrical engineering, with focus on HV systems;
• Experience with maintenance management processes (preferred);
• Knowledge of utility-scale PV plant design (preferred);
• Proficient in Microsoft Office and general IT systems;
• Availability to travel worldwide, short-term mobility required;
• Valid driving licence;

KEY SKILLS

• Customer-oriented with a strong focus on service quality;
• Proactive and solution-oriented mindset;
• Strong sense of responsibility and ownership;
• High attention to detail and accuracy;
• Strong organizational and structuring skills;
• Ability to define processes, methodologies and workflows;
• Ability to assign responsibilities and coordinate teams effectively;
• Strong teamwork and collaboration skills;
• Coordination and supervisory capabilities.