Technical BESS Expert - Project Execution (DACH)
Zug, Switzerland
Senior Expert – Battery Energy Storage Systems (BESS) Location: Hamburg, Germany or Switzerland (Zug)Salary: Competitive / Market-based (flexible depending on profile)Employment Type: Full-time About the CompanyOur client is a leading renewable energy investment and infrastructure platform managing a diverse portfolio of 1+ GW of assets across Europe and having deployed approximately €2B in renewable projects across solar, wind, and storage. They act as a trusted advisor to institutional investors and are actively expanding their Battery Energy Storage Systems (BESS) platform, including both greenfield developments and acquisitions. This is a unique opportunity to work on large-scale BESS projects across Europe, with exposure to both technical project delivery and investment decision-making. Role OverviewThe Senior Expert – BESS will be responsible for driving the execution of utility-scale battery storage projects, ensuring successful delivery while managing EPC contractors and supplier relationships. This role is central to the growth of the company’s BESS portfolio and combines hands-on construction supervision with strategic involvement in technical due diligence for new acquisitions. Key Responsibilities Lead execution of large-scale BESS projects from design through commissioning Manage and negotiate EPC contracts with contractors and suppliers Oversee construction delivery, including site supervision, integration, and testing Collaborate with grid operators, manufacturers, and EPC partners to ensure seamless system integration Define and monitor quality assurance and system acceptance protocols Support technical due diligence for acquisitions, ensuring risk mitigation and technical compliance Conduct performance assessments and lifecycle analyses to optimise system efficiency Liaise with investment and project teams to provide technical insight into ongoing and potential projects Candidate Profile Degree in Electrical Engineering, Energy Technology, or related field 4+ years’ experience in BESS projects, including design, construction, and commissioning Strong hands-on experience with EPC contractor management and construction delivery Proven knowledge of battery storage technologies and grid integration (Li-ion, LFP, NMC, hybrid) Experience with SCADA systems and monitoring interfaces Strong project management and communication skills Fluent in English; German is desirable Practical problem-solving mindset and ability to work across international teams Why This Role is Unique Work on high-profile BESS projects across multiple European markets (Germany, Finland, Italy, Netherlands, Denmark) Exposure to investment-level decision making and technical due diligence Opportunity to be part of a growing BESS platform with institutional backing Combine hands-on construction execution with strategic advisory experience Apply through h.safavi@pipermaddox.com