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Kreditorenbuchhalter (m/w/d) - Arbeitnehmerüberlassung | HamburgFür unseren langjährigen Kunden in Hamburg, ein etabliertes Unternehmen im Energiesektor, suchen wir ab dem 01.10.2026 Unterstützung im Bereich Kreditorenbuchhaltung.Die Position ist zunächst im Rahmen der Arbeitnehmerüberlassung bis zum 31.12.2026 vorgesehen. Eine Verlängerung über diesen Zeitraum hinaus ist möglich.Ihre AufgabenPrüfung, Kontierung und Buchung von EingangsrechnungenBearbeitung und Abstimmung von KreditorenkontenKlärung von offenen Posten und RechnungsdifferenzenVorbereitung und Durchführung von ZahlungsläufenAbstimmung mit internen Fachabteilungen und externen LieferantenUnterstützung bei Monats- und JahresabschlüssenPflege von Stammdaten und Sicherstellung einer hohen DatenqualitätIhr ProfilMindestens 5 Jahre Berufserfahrung in der Kreditoren- oder FinanzbuchhaltungGute Kenntnisse der gängigen Prozesse in der KreditorenbuchhaltungSicherer Umgang mit MS Office, insbesondere ExcelErfahrung mit ERP-/Buchhaltungssystemen von VorteilGute Deutsch- und EnglischkenntnisseStrukturierte, sorgfältige und zuverlässige ArbeitsweiseGültige Arbeitserlaubnis für Deutschland erforderlichRahmenbedingungenStart: 01.10.2026Dauer: zunächst bis 31.12.2026Vertragsform: ArbeitnehmerüberlassungStandort: HamburgArbeitszeit: 40 Stunden/WocheBranche: EnergiesektorVerlängerungsoption: möglichInteresse?Dann bewirb dich bitte mit deinem aktuellen Lebenslauf. Wir freuen uns auf deine Bewerbung. 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.

We are looking for an experienced Environmentalist / Marine Biologist to support an offshore environmental survey project in the UK. You will be part of a vessel-based survey team, supporting marine environmental monitoring and fieldwork activities throughout the project.   Key Responsibilities • Undertake grab sampling and seabed sample collection• Conduct drop-down camera surveys and seabed habitat observations• Identify and record marine habitats and species• Process and document environmental samples and survey data• Maintain accurate field records and survey reports• Work closely with the vessel crew and wider survey team   Requirements • Degree in Marine Biology, Environmental Science, Ecology or a related field• Offshore experience• Experience with grab sampling and drop-down camera surveys• Strong environmental data recording and reporting skills• Valid offshore certification and medical required   Contract Details Location: UK / Outside 12nmContract Type: Contract / Vessel-BasedDuration: 4 weeksStart Date: 14/10/2026

An opportunity is available for an experienced Environmental Project Manager to lead environmental workstreams on a major renewable energy project. The successful candidate will coordinate environmental activities across the project lifecycle, working closely with internal teams, consultants and regulatory stakeholders.   Key Responsibilities • Lead environmental workstreams and project deliverables• Coordinate EIA, environmental assessment and consenting activities• Manage environmental consultants and specialist contractors• Oversee environmental risks, commitments and mitigation measures• Support planning, permitting and regulatory requirements• Coordinate environmental reporting and project documentation• Work closely with engineering, construction and project management teams• Provide regular updates on environmental progress and compliance   Requirements • Proven experience in environmental project management• Experience with EIA, environmental consents or permitting• Background in major infrastructure, energy or renewables• Strong stakeholder and contractor management experience• Excellent organisational and communication skills   Contract Details Location: UK / HybridContract Type: ContractDuration: 12 monthsStart Date: ASAP

Important: You must be a UK Sole National and either hold or be able to gain SC level Security Clearance.About our Nuclear team:Our nuclear capabilities include services from operational reactor support, new build and decommissioning, to nuclear defence facilities and more sensitive projects within highly regulated and secure sites. With an ever-expanding nuclear portfolio, we are proud to support our customers in installing and maintaining existing assets. DescriptionWe are seeking Quantity Surveyor's to join our team. The ideal candidates should have a strong background in cost management and have a deep understanding of Multi-Disciplinary Infrastructure.Responsibilities:Manage and oversee the cost planning, budgeting, and cost control processes for multi-disciplinary design and construction projects.Develop and implement strategies to minimize project costs while ensuring high-quality workmanship.Prepare and negotiate contracts, subcontracts, and variations in accordance with the project's requirements.Analyse and report on project costs, risks, and budget performance.Build and maintain positive relationships with clients, contractors, and suppliers.Ensure project compliance with regulations, standards, and company policies.Qualifications and Skills:Bachelor's degree in Quantity Surveying or related field.Previous experience in Quantity Surveying in a related fieldStrong knowledge of construction contracts, procurement methods, and cost management techniques.Ability to work effectively in a team environment and manage multiple tasks simultaneously.Excellent communication and interpersonal skills.Familiarity with project management software and tools. 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.

We are seeking an experienced Construction Manager / Site Construction Supervisor / Site Engineer to support the delivery of the BESS Hambach 2 project in North Rhine-Westphalia, Germany.You will be responsible for coordinating and supervising construction and installation activities on site, ensuring that works are delivered safely, efficiently, on schedule, within budget and to the required quality standards.This is a hands-on site-based role suited to a proactive construction professional with strong technical expertise, excellent communication skills and a strong commitment to health, safety and environmental compliance.Key ResponsibilitiesCoordinate and supervise construction and installation activities on site.Monitor and verify that works are completed in accordance with approved construction and execution drawings.Ensure compliance with project schedules, budgets, quality standards and health, safety and environmental requirements.Participate in regular site and construction meetings with contractors and project stakeholders.Monitor, track and document construction progress, providing regular updates to the Project Manager and Site Management Team.Coordinate activities with other site supervisors and discipline leads to ensure efficient project execution.Identify, document and report defects, non-conformities and contractor/subcontractor performance issues.Support the preparation and issuing of non-conformance reports and deficiency notices where required.Review and assess contractor variation claims and change requests.Assist with the inspection, testing and acceptance of partial and final project deliverables.Support the implementation and close-out of corrective actions to ensure project objectives are achieved.Maintain accurate site documentation and reporting throughout the project lifecycle.Candidate RequirementsEssential QualificationsDegree, diploma or equivalent qualification in Engineering, Construction Management or a related technical discipline.Alternatively, a certified Engineering Technician with relevant site supervision experience will be considered.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.