BESS Technical Specialist / BESS Engineer (O&M) - R.Power Renewables

R.Power is a leading independent renewable energy producer in Poland and other European markets: Portugal, Spain, Italy, Germany, and Romania. Since 2012, we have been at the forefront of the energy transition, offering solutions across the entire renewable energy value chain: developing, commercializing, and constructing renewable energy assets. Our portfolio includes photovoltaics (PV, our main technology), wind power, and large-scale energy storage systems (BESS). R.Power is one of the largest independent renewable energy companies in Europe. Due to the company’s growth, we are looking for:

BESS Technical Specialist / BESS Engineer (O&M)

Location: Warsaw

Responsibilities

  • Provide technical supervision of BESS projects during the operational phase, including batteries, PCS, EMS/SCADA, and auxiliary systems.
  • Manage relationships with LTSA/OEM providers, including maintenance, inspections, repairs, and replacements.
  • Monitor and report key performance indicators such as availability, RTE, SoH, degradation, capacity retention, and response times.
  • Verify battery operation profiles considering durability, warranty compliance, and economic optimization.
  • Enforce LTSA/BSA contractual obligations, including performance guarantees, SLAs, warranty claims, and liquidated damages.
  • Analyze EMS/SCADA events and alarms, conduct root cause analysis, and coordinate corrective actions.
  • Manage technical interfaces between BESS projects, grid operators, balancing market aggregators, and internal trading/dispatch teams.
  • Ensure compliance with grid codes and operator requirements.
  • Participate in reperformance tests and post-maintenance verification.
  • Identify and mitigate technical and contractual risks.
  • Report project technical status to management, lenders, and stakeholders.
  • Support insurance and claims management processes.

Requirements

  • Degree in Electrical Engineering, Power Engineering, Automation, or related fields.
  • Experience in the energy or industrial sector, preferably in BESS, power electronics, or utility-scale asset operations.
  • Strong practical knowledge of BESS technologies, including batteries, PCS, EMS, HVAC, and fire protection systems.
  • Experience working with LTSA/OEM suppliers and O&M teams.
  • Ability to interpret and enforce technology agreements.
  • Knowledge of BESS KPI monitoring and performance analysis.
  • Familiarity with grid codes and standards.
  • Utility-scale BESS experience is an advantage.
  • English at minimum B2/C1 level.

We offer

  • Opportunity to work for a leading renewable energy company in Poland and Europe.
  • R.Power Abroad mobility program.
  • R.Power University training program.
  • Luxmed private healthcare and Multisport card.
  • Hybrid work model (4 office days + 1 remote day).
  • Integration and sports budgets.
  • Modern office near Politechnika Metro Station.
  • Positive, development-oriented work environment.
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