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

Piper Maddox are exclusively supporting an industry leading BESS IPP as they look to bring in an experienced senior project manager to help deliver the construction of one of the UK's largest BESS projects.This is a fantastic opportunity for someone who enjoys working in a smaller, dynamic environment where you can have real influence on how projects are delivered. You’ll be joining a high-performing but close-knit team, giving you the autonomy to lead projects properly while still having strong support around you. This person will also be required to be involved in the acquiring of new projects to expand their portfolio so a strong commercial acumen would also be advantageous.They are looking for candidates with:- 5+ years BESS experience - solar experience as well as BESS would also be advantageous- Civil or electrical engineering background- Excellent stakeholder management skills- Strong contract management and commercial acumen- Project Management qualifications- Full UK driver's license

Piper Maddox arbeitet mit einem schnell wachsenden Entwickler im Bereich erneuerbare Energien zusammen, der sich derzeit zu einem Independent Power Producer (IPP) weiterentwickelt und sein Team um einen Projektleiter Elektrotechnik erweitern möchte.Sie werden Teil eines 20-köpfigen Teams, das bis Ende des Jahres auf 30 Mitarbeitende wachsen soll. Ihre Hauptverantwortung besteht darin, die elektrotechnische Planung und Umsetzung von großen Solar- und Batteriespeicherprojekten (BESS) in ganz Deutschland von Anfang bis Ende zu verantworten.Das Führungsteam des Unternehmens bringt Erfahrung aus über 5 GW an Wind- und Solarprojekten mit, und die aktuelle Projektpipeline umfasst bereits Anlagen im Betrieb sowie Projekte im RTB-Status (Ready-to-Build). Position: Projektleiter ElektrotechnikGehalt: Bis zu 85.000 € Grundgehalt + FirmenwagenStandort: Remote. Der Hauptsitz befindet sich in Hamburg, die wichtigsten Projekte liegen jedoch in Süddeutschland. Daher wird idealerweise ein Kandidat aus Süddeutschland gesucht, Bewerbungen aus ganz Deutschland sind jedoch willkommen. Ihre Aufgaben: Steuerung des Netzanschlussprozesses sowie der technischen Anschlussvereinbarungen mit NetzbetreibernPlanung und Prüfung von Umspannwerken, Mittelspannungsinfrastruktur und KabeltrassenVerantwortung für die elektrotechnische Planung innerhalb und außerhalb der PV-Anlage (inkl. AC/DC-Systeme, Wechselrichter und Module)Sicherstellung der Einhaltung von Netzanschlussrichtlinien, Zertifizierungsanforderungen und VDE-NormenDurchführung von Technical Due Diligence (TDD) bei Projektakquisitionen sowie Prüfung von EPC-Engineering und VerträgenUnterstützung bei Projekten, die im RTB- oder Bau-Stadium erworben werden Ihr Profil: Fundierter Hintergrund in Elektrotechnik und Netzintegration (idealerweise mindestens 3–5 Jahre Erfahrung)Erfahrung mit Umspannwerken, AC/DC-Kabelplanung und PV-AnlagendesignKenntnisse im Bereich Utility-Scale-Photovoltaik (Erfahrung mit BESS ist ein großes Plus)Erfahrung in der Zusammenarbeit mit Netzbetreibern, EPC-Unternehmen und ZertifizierungsstellenVerständnis für Bauprozesse und Projektmanagement Warum diese Position: Teil einer schnell wachsenden Plattform für erneuerbare Energien werdenDie Project-Engineering-Funktion aktiv mitgestaltenArbeit an großskaligen Solar- und Speicherprojekten, die die Energiewende vorantreibenKollaboratives Team, flache Hierarchien und viel Eigenverantwortung Bewerben Sie sich hier oder senden Sie Ihren Lebenslauf an r.derbyshire@pipermaddox.com --- Piper Maddox is partnered with a fast-growing renewable energy developer, transitioning into an IPP, who are looking for a Project Engineering Manager to add to the team!You will join a team of 20, looking to grow to 30 by the end of the year. Your main responsibility will be to lead the electrical engineering of large-scale solar and battery storage projects from start to finish, across Germany.The leadership team behind the company brings experience from 5+ GW of wind and solar projects, and their current pipeline already has projects in operation and at RTB! Position: Project Engineering ManagerSalary: Up to €85, 000 base salary + carLocation: Remote. HQ is in Hamburg, but their key projects are in South Germany, so ideally, the candidate will be based in the South. Open to applications from elsewhere in Germany. Your Responsibilities: Manage the grid connection process and technical agreements with grid operatorsEngineer and review substations, medium-voltage infrastructure, and cable routesOversee electrical engineering inside and outside the PV plant (including AC/DC systems, converters, and modules)Ensure compliance with grid norms, certification standards, and VDE requirementsConduct technical due diligence (TDD) for acquired projects and review EPC engineering and contractsSupport projects acquired at RTB or construction stage What You Bring: Strong background in electrical engineering and grid integration (ideally 3-5 years' minimum)Experience with substations, AC/DC cable layouts, and PV plant designKnowledge of utility-scale PV (BESS experience a strong plus)Experience working with grid operators, EPC contractors, and certification bodiesUnderstanding of construction processes and project management Why Join: Join a rapidly growing renewable energy platformHelp shape the project engineering functionWork on large-scale solar and storage projects driving the energy transitionCollaborative team with flat hierarchies and high ownership Apply here or email your CV to r.derbyshire@pipermaddox.com