I T

HV Technician, Service Offshore Wind

Esbjerg
Company: Semco Maritime
Published Nov 18, 2025

Role highlights

Contract type

Full Time

Schedule

Permanent

Experience

Mid

Work style

On-site

Key skills

The HV Technician role in Offshore Wind service demands vocational-level education as an Electrician with solid experience in Medium Voltage (MV) and High Voltage (HV) electrical systems, including cables, transformers, and switchgear. Candidates should have practical expertise performing service and maintenance on offshore substations, wind turbines, and oil & gas drilling units, handling electrical systems ranging from Low Voltage up to 220kV. Key technical competencies include testing and servicing protection devices such as relays and circuit breakers, conducting special periodic surveys on drilling rigs and drill ships, and documented switching operations on high voltage equipment, which is advantageous. Safety is paramount, requiring a strong safety mindset and completion of Global Wind Organisation (GWO) training including Helicopter Underwater Escape Training (HUET) certificates. The role involves extensive offshore work with over 100 travel days annually, primarily across European customer sites, necessitating valid EU work permits and the ability to collaborate effectively within multidisciplinary teams. This mid-level position offers the opportunity to contribute directly to the global energy transition in a supportive, safety-focused environment within the renewables sector. Candidates must be prepared to upload all relevant certifications and documentation to demonstrate compliance and qualification for offshore electrical service activities.

#Electrical Technician #Electrical Service Technician #Power Systems Technician #High Voltage Technician #Wind Turbine Technician #HV Technician #Offshore Wind Technician #MV HV Technician #Offshore Electrical Technician #Substation Technician

About the role

Role Summary

  • Join the Renewables Division as an HV Technician in the MV/HV Service Team
  • Provide electrical services for offshore wind projects
  • Work with Medium Voltage and High Voltage systems on complex and exciting projects
  • Support the global energy transition with a focus on safety and teamwork

Responsibilities

  • Perform service and maintenance on Offshore Substations (OSS), Wind Turbines (WTG), and Oil & Gas Drilling Units
  • Carry out electrical services from Low Voltage up to 220kV
  • Maintain offshore substations and wind turbines
  • Conduct special periodic surveys (SPS) of drilling rigs and drill ships
  • Service switchgears and transformers
  • Test protection devices such as relays and circuit breakers

Requirements

  • Educational background as an Electrician
  • Experience with Medium and High Voltage cables, transformers, and switchgear
  • Documented switching experience on high voltage equipment (advantageous)
  • GWO training including HUET certificates
  • Work permits for the EU
  • Strong safety mindset and collaborative, team-oriented approach
  • Please upload certificates and documentation

Benefits

  • Be part of a supportive and safety-focused team
  • Join a community of over 2,300 professionals in the energy sector
  • Opportunity to make a real impact on the global energy transition
  • Full-time position with 100+ travel days per year
  • Place of employment: Germany or Denmark; work mainly at customer sites in Europe, with global support

How to Apply

  • Submit your application as soon as possible via the link on the page
  • For questions, contact Christian Poulsen, Head of MV & HV Service at +45 2294 4199
  • Please mention in your application that you found the job at Jobindex

Semco Maritime is committed to safety, sustainability, and driving change in the energy sector. Join us to help shape the future of global energy.

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