Commissioning Engineer (BESS) - Freelance Project

Location: Lithuania
Duration: 1 month
Type: On-site freelance
Eligibility: Lithuania-based candidates only

We are looking for an experienced Commissioning Engineer to support a utility-scale BESS project in Lithuania. This is a short-term, site-based role focused on full commissioning.

Mandatory Certifications:

• EU electrician license
• Working at height certificate
• LOTO safety knowledge
• HV safety awareness (DC systems up to 1500V)

• Check DC & AC cable installation
• Verify communication systems (BMS / EMS / PCS)
• Perform insulation resistance testing (50 MΩ)
• Conduct visual and mechanical inspections (grounding, connections, torque)

• Verify UPS and auxiliary power systems
• Validate BMS / controller software & firmware
• Test communication protocols (CAN / Ethernet / EMS)
• Check alarms, indicators, SPD statusTest cooling system, ventilation, and safety interlocks
• Validate fire detection and suppression systems

• Execute full system validation under operation
• Cell voltage deviation checks (under load)
• Cell temperature deviation & rise checksCharge / discharge testing (rate power)
• Full energy performance test
• System integration validation with PCS / EMS / transformer

If you are an experienced BESS / Solar / Substation commissioning engineer or Field engineer with real commissioning experience and looking for a flexible, project-based collaboration in the renewable energy sector, please send your CV to office@hrenergy.org and our Recruitment Consultants will provide you with more detailed information about the role.