Job Description

Second Foundation is a global energy trading company with around 450 employees across locations in Prague HQ (CZ), Zug (CH), Berlin (DE), Charlotte (USA), and Tokyo (JP). We specialize in the physical trading of electricity across 21 markets in Europe, North America, and Asia.

Our mission is to enable the efficient integration and commercialization of renewable energy and battery storage within global electricity markets. Since 2023, we have been actively investing in our own asset portfolio, with a strong focus on battery energy storage systems (BESS). With a growing pipeline of 15+ battery storage projects totaling over 500 MW, our ambition is to become a leading owner and operator of large-scale battery storage systems in Germany

As a Head of EHV and HV Grid (BESS), you will take full ownership of grid connection and high-voltage infrastructure for our BESS projects. You will lead - supported by our internal and external technical experts - the delivery of 380 kV substation and grid integration projects end-to-end - from early-stage design and grid application through to commissioning and energization. This is a senior, high-impact role where you act as the lead for all high-voltage topics, ensuring safe, compliant, and on-time grid connection of our assets.

Location: Berlin (Germany) or remote | Flexible setup (Full-time / Freelance)

What you would work on?

• Lead the end-to-end execution of high-voltage substation projects (esp. 380 kV) in compliance with grid operator requirements and regulatory standards
• Own the grid integration strategy for BESS assets, including connection concepts, technical specifications, and application processes
• Act as the primary technical interface to TSOs/DSOs, regulatory bodies, and certification authorities
• Manage and coordinate all grid connection activities, including permitting, engineering, construction interfaces, commissioning, and acceptance testing
• Oversee technical consultants, EPC contractors, OEMs, and engineering partners on HV scope and grid compliance
• Ensure full compliance with relevant standards (e.g. VDE, IEC) and grid codes
• Protection and control systems (including protection schemes and relays)
• Substation design and grid interface requirements
• Perform and validate grid studies, including load flow, short-circuit analysis, and dynamic simulations
• Develop and maintain grid models using industry-standard tools
• Support on-site activities when required, including switching operations and commissioning support

What makes you a great candidate?

• Degree in Electrical Engineering, Power Systems Engineering, or a comparable qualification.
• Proven experience in extra-high-voltage (380kV) and high-voltage (110kV) substation projects
• Strong expertise in grid integration and grid connection processes
• Experience with grid calculation and simulation tools (e.g. PowerFactory, PSS®SINCAL)
• Solid knowledge of relevant standards and regulations, including: VDE 0101, VDE 0105, VDE-AR-N 4110 / 4120, IEC 61850
• Strong project management and stakeholder coordination skills
• Fluent in German and English (business level required)
• Willingness to travel within Germany and occasionally across EMEA
• Structured, analytical mindset with high ownership and accountability

What we offer?

• Competitive compensation with performance-based components
• A key role in building one of Germany’s leading BESS platforms
• Direct impact on the energy transition and renewable integration
• Close collaboration with experienced teams across trading, engineering, and asset management
• Flat hierarchies, fast decision-making, and high ownership
• Flexible working arrangements
• Professional development and training opportunities