Field Service Engineer (Utility BESS)

Responsibilities

• Execute  pre-commissioning ,  cold  commissioning  and hot  commissioning  of  utility  scale  BESS  projects
• Perform  preventive  and  corrective  maintenance  on  installed  energy  storage  projects
• Valid at  electrical  installations ,  system  configuration  and performance
• Troubleshoot  faults  across  DC  systems , PCS/ Inverters , MV  equipment , SCADA and  auxiliaries
• Supervise  subcontractors  and  ensure  site  works  meet  safety ,  quality  and  project r equirements
• Complete  commissioning  records ,  service  reports ,  fault  reports  and  handover  documentation
• Support  client  training ,  site  handover , warranty  investigations  and  technical  reporting
• Support  regional  delivery ,  commissioning  and O&M  activities ,  including  travel  to  project  sites  as  required .

Requirements

• Electrical, electrotechnical, or equivalent technical qualification, with proven experience in electrical installation, commissioning, maintenance, or fault finding
• Proven experience working on utility-scale electrical systems, preferably including BESS, PCS/inverters, DC battery systems, MV/LV switchgear, transformers, SCADA, BMS or EMS systems
• Electrical safety training, competence and authorisation required for work on or near electrical installations
• Competence to work under EN 50110-1 and applicable Portuguese electrical safety procedures, including live LV work, work near live parts and work in the vicinity of HV/MV systems
• Practical experience using correctly rated electrical test equipment, diagnostic tools
• Ability to read and interpret single-line diagrams, electrical schematics, wiring diagrams, interlock logic, commissioning procedures and OEM technical manuals
• Experience with installation, commissioning, energisation, maintenance and fault finding across DC systems, PCS/inverters, MV interfaces and SCADA systems
• Familiarity with BMS, EMS, SCADA, PLCs, communication networks, HVAC, fire detection/suppression interfaces and auxiliary systems
• Ability to work under permit-to-work, lockout/tagout, switching, isolation, RAMS and site safety procedures
• Completion of mandatory workplace health and safety training under Portuguese safety requirements before site deployment
• Ability to complete commissioning records, test reports, service reports, fault reports, risk assessments and handover documentation accurately
• Legal right to work in Portugal
• Valid Category B driving licence
• Willingness to travel across Portugal and internationally as required

Preferred / additional

• Previous utility-scale BESS installation, commissioning or maintenance experience
• Experience with OEM-supplied integrated systems covering DC batteries, PCS, MV equipment and SCADA
• Medium-voltage switching experience on 11 kV–33 kV systems
• Formal MV switching authorisation under client, DSO/ TSO or site rules
• Experience on substations, renewable-energy plants, grid-connected storage projects or industrial power systems
• Knowledge of Portuguese MV/HV grid-connection requirements and applicable DGEG / network operator rules
• Experience with remote diagnostics, alarm analysis, firmware updates, data logs and root-cause analysis
• Availability for call-out, outage support, overtime or occasional weekend work

We offer you

• A dynamic environment with high responsibilities and an independent working style
• The opportunity for professional development and growth in one of the most fast-growing industries.
• An environment of open communication where all ideas and opinions are valued
• Collaboration with an international and diverse team from all over Europe
• Possibility for remote work
• Qualified training and support with our buddy system
• A detailed introduction to our product portfolio
• Competitive salary and a great bonus structure
• Attractive additional benefits that vary depending on the country