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We are seeking a highly motivated and experienced Lead BESS Project Development Manager to oversee the development of utility-scale Battery Energy Storage System (BESS) projects from origination through to RTB status. Responsibilities include.Applicants MUST have success in identifying suitable land for development, managing grid connection applications, and key stakeholder managementA degree or above in Engineering, Real Estate Management or Economics is required. As is experience with standalone BESS projects or co-located developments. Familiarity with power purchase agreements (PPAs), tolling agreements, or capacity markets is critical.ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit.

ersg is working on behalf of a multinational Solar O&M Contractor on the position of Solar Inverter Specialist.This is predominately a remote role with occasional travel to site.Successful candidates MUST have strong experience of fault-finding and servicing inverters. This role will require applicants to use software to identify inverter performance across the portfolio of assets; identify common faults; develop technical documentation and more.ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit.

Field Engineer required for a Commercial & Industrial Electrical Engineering client, focusing on BESS & Voltage Optimisation.Successful applicants will have experience of working on Commercial, Industrial or Utility-Scale BESS projects. They will be installing, commissioning and servicing plant, and an understanding of communications/management systems (SCADA/BMS) is advantageous.Responsibilities include installation and commissioning of systems; developing O&M documentation; workign with clients to understand their specific needs; offer technical support during early-phases of development; ensure that you are working within saftey protocol.Company vehicle is provided, and there will be regular travel across the UK (possible international travel).ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit.

Freiberuflicher Claim Manager (m/w/d) - Energie & NetzeStandort: Berlin (75% Remote, 25% Onsite) Umfang: Vollzeit, 40h/Woche Vertragsdauer: 12 Monate mit Verlängerungsoption Start: Oktober/November 2025Über unsWir, die ERSG, sind ein internationaler Recruitment-Dienstleister mit Spezialisierung auf den Bereich erneuerbare Energien und Energieinfrastrukturprojekte. Für unseren Kunden in Berlin suchen wir ab Oktober/November 2025 einen erfahrenen freiberuflichen Claim Manager (m/w/d).Ihre AufgabenManagement von Claims und Nachträgen in komplexen Energie- oder InfrastrukturprojektenAnalyse, Bewertung und Verhandlung von vertraglichen AnsprüchenUnterstützung des Projektteams in allen Fragen rund um Contract & Claim ManagementErstellung von rechtlichen Dokumentationen und BerichtenEnge Zusammenarbeit mit internen und externen StakeholdernIhr ProfilAbgeschlossenes Studium der Rechtswissenschaften (zwingend erforderlich)Mehrjährige Erfahrung im Contract & Claim ManagementProjekterfahrung im Bereich Energie, Netze oder GroßbauprojekteSehr gute Deutschkenntnisse in Wort und SchriftStrukturierte, analytische und lösungsorientierte ArbeitsweiseRahmenbedingungenVertragslaufzeit: 12 Monate mit Option auf VerlängerungStart: Oktober/November 2025Arbeitsmodell: 75% Remote, 25% vor Ort in BerlinWochenstunden: 40h ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit.

Responsibilities:Conduct stakeholder management, including coordination with landowners and related ministriesMaintain project related documentation and internal approvalSupporting project coordinator to track the project pipeline Requirements:Bachelor's degree in management, commerce, or project management1-3 years in project management or coordination, or commercial related task in renewable energy, infrastructure, or constructionFluency in English and Japaneseersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit.