BESS Technical Specialist / BESS Engineer (O&M)
R. Power
Company Overview
R.Power, a privately held European independent power producer and renewables developer structured as a joint-stock company since December 2021, registered in Warsaw under KRS 0000939593 with an all-paid share capital of PLN 8,682,235.85 (source: rpower.energy, rpower.energy)
HeadquartersWarsaw, Poland
Founded2010
SizeApproximately 400 employees across Europe, with public profiles indicating a range between 501 and 1,000 employees in recent years (source: linkedin.com, enfsolar.com). Consolidated revenue reached PLN 407.5 million in 2024, marking a 29.7% increase year on year (source: rpower.energy)
What They Do
R.Power operates as a fully integrated renewable energy group developing, commercializing, constructing, and operating utility-scale photovoltaic, wind, and industrial-scale battery energy storage system (BESS) projects across multiple European countries including Poland, Italy, Portugal, Spain, the Netherlands, Germany, and Romania (source: rpower.energy, rpower.energy). Their business model encompasses the entire value chain from early-stage project development to ready-to-build status, commercialization through auctions and power purchase agreements (PPAs), engineering, procurement and construction (EPC) delivery, operations and maintenance (O&M) services, and independent power producer (IPP) ownership and power generation (source: rpower.energy). The company is recognized as a leading European IPP with a diversified portfolio spanning solar photovoltaics, onshore wind, and battery storage technologies, positioning itself as a pan-European renewables developer with a strong focus on integrated project delivery (source: linkedin.com). Their subsidiaries, such as Quanta Energy and Nomad Electric, specialize respectively in commercial and industrial solar PV solutions and EPC/O&M services for large-scale solar farms, further enhancing their comprehensive service offering (source: sp-edge.com).
Projects & Track Record
R.Power has developed and commercialized a substantial portfolio of renewable energy projects, including a power purchase agreement with Play, the Polish subsidiary of Iliad, for an 18 MW solar farm in Kaczory, Greater Poland, with power delivery scheduled from January 1, 2026 and an annual supply of 20 GWh (source: cbinsights.com). As of early 2023, the company reported a development pipeline exceeding 8.3 GWp of solar PV assets, complemented by approximately 0.9 GWp of projects that are already built, under construction, or grid-secured, demonstrating a robust and diversified project portfolio (source: sp-edge.com). The group operates approximately 1.4 GW of projects either operational or under construction across Europe, spanning solar, wind, and battery storage technologies, reflecting its pan-European footprint and multi-technology expertise (source: energyindustryreview.com). Their track record includes a record-breaking year in commercializing utility-scale BESS, hybrid, and renewable energy assets, underscoring their leadership in emerging energy storage markets (source: energyindustryreview.com).
Recent Developments
In the last two years, R.Power has experienced significant growth and expansion across multiple European markets, highlighted by a 29.7% increase in consolidated revenue to PLN 407.5 million in 2024 (source: rpower.energy). The company has successfully commercialized numerous utility-scale battery energy storage systems and hybrid renewable assets, marking a record-breaking period for offtake contracts and project development (source: energyindustryreview.com). R.Power has also secured substantial financing totaling over $406 million from prominent investors including the Three Seas Initiative Investment Fund, European Bank for Reconstruction and Development, Eiffel Investment Group, mBank, and Santander Bank, enabling continued project development and expansion (source: cbinsights.com). Their capital-intensive infrastructure platform leverages project finance models to support the growth of their renewable energy portfolio across Europe (source: rpower.energy).
Working There
R.Power offers a wide range of career opportunities across development, engineering, procurement, construction, operations, maintenance, commercialization, trading, finance, and corporate support functions, reflecting the full scope of its integrated renewable energy business model (source: rpower.energy, sp-edge.com). The company’s main office is located in Warsaw, Poland, serving as the central hub for its pan-European operations that span multiple countries and renewable technologies including solar, wind, and battery storage (source: rpower.energy, linkedin.com). Publicly visible culture indicators emphasize rapid expansion, a dynamic growth environment, and a strategic focus on operating across the entire renewables value chain rather than limiting activities to project development alone, making it an attractive workplace for professionals seeking to engage in diverse aspects of the renewable energy sector (source: linkedin.com, rpower.energy).
Last updated on Aug 31, 2026 | Report an issue
Job Description
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.
Apply now
Job expired?Please let R. Power know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let R. Power know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
See how you’re connected
View connectionsSee your contacts at R. Power on LinkedIn and tap your network when applying for this position.
Get job alerts
Get alerts for Battery Management Systems jobs in Warsaw, Poland
Join Talent Pool
Let clean energy employers find you
About the role
September 3, 2026
September 3, 2026
Full time
Hybrid
Company
- Warsaw, Poland
Mid-level experience in energy or industrial sector
UTC+01:00