BESS Engineer (Large-Scale) NEW

Job description

Responsibilities:

• Develop technical concepts for large-scale Battery Energy Storage Systems (BESS), both standalone and hybrid (e.g., PV + BESS);
• Select and dimension key components: batteries, PCS (Power Conversion Systems), transformers, cooling/heating systems, EMS (Energy Management System), safety systems, communication systems;
• Analyze and model battery degradation, charging/discharging cycles, and thermal management;
• Prepare technical documentation: block diagrams, electrical schematics, specifications, technical descriptions, and design assumptions;
• Perform simulations and analyses: charging/discharging curves, losses, efficiency, battery degradation, grid impact, and environmental conditions;
• Participate in technical due diligence for BESS projects and assess technical risks;
• Collaborate with technology suppliers, contractors, and internal teams (design, execution, operations);
• Support commissioning, testing, and implementation phases of projects.

Our requirements:

• University degree in Electrical Engineering, Energy, Renewable Energy, or a related field;
• 5+ years of experience in designing energy storage systems or large-scale electrical/renewable energy installations (e.g., PV farms, power plants);
• Knowledge of relevant regulations and standards: electrical codes, grid connection requirements, environmental and certification frameworks for BESS;
• Experience with design and simulation tools (e.g., battery modeling, lifecycle analysis, performance simulations);
• Proficiency in reading and preparing technical documentation, electrical diagrams, and component specifications;
• Strong analytical and system-thinking skills, with understanding of BESS integration with the grid, PV, EMS, etc;
• Knowledge of automation, control systems, and communication protocols used in BESS integration;
• Very good communication skills in English (written and spoken) and excellent communication skills.

We offer:

• Private Medical Care & Life Insurance – Comprehensive health coverage provided by Medicover, with the option to extend benefits to family members;
• Sports Card Access – Choose between Multisport or Medicover Sport to stay active and healthy;
• Language Learning Support – A financial bonus to support improving your English skills or starting to learn Swedish, Danish, or Norwegian;
• Company Social Benefits Fund – Seasonal bonuses provided during vacation periods and at Christmas;
• Empik GO – annual platform subscription with company co-financing;
• Flexible Work Model – Hybrid work available for employees based in Kraków, Wrocław, Gdańsk, Olsztyn or remote work possible for employees located in Poland and authorized to work in the Polish market.