{"id":4231908,"url":"https://alion.io/job/mercury-engineering-site-administrator","title":"Site Administrator","company":{"id":1933974,"name":"Mercury Engineering","domain":"mercuryeng.com","url":"https://alion.io/company/mercuryeng","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"HR-Manager","truth_index":{"grade":"B","score":77,"open_postings":180,"ghost_share":0.378,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":46,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Administrative","role_family":"Administrative","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Microsoft Office","optional":false},{"name":"Outlook","optional":false},{"name":"SharePoint","optional":false}],"status":"live","first_seen_at":"2026-11-13T08:35:22Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T10:17:16Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Mercury is the European leader in construction solutions.\nWe build and manage complex engineering & construction projects for the world’s leading corporations. Our solutions help deliver technologies and life changing advancements that connect people, communities, and businesses, giving them the power to achieve incredible things. Our people have the courage to be innovative. Their determination and sharp focus enable us to deliver with certainty, time and time again.\nWe deliver our clients’ visions through leading edge construction solutions across multiple sectors, including Enterprise Data Centres, Advanced Technology & Life Sciences, Hyperscale Data Centres, Fire Protection.\nAt Mercury, it is our duty to encourage and back our people to realise their vision of themselves. We place them at the heart of what we do, providing challenging opportunities to develop within a great team in a supportive environment that allows them to reach their full potential.\nKey Responsibilities of the Role:\nResponsible for managing staff needs in terms of travel and accommodation.\nAttends meetings at the request of the senior management team, document minutes of the meetings and distribute minutes to all relevant parties. \nEnsures that all employees have an appropriate environment to undertake their duties. \nCo-ordinate, manage and order all office supplies including canteen food requirements. \nManages holiday rotas for all senior staff on site.\nManage the smooth running of the Administration, Payroll and Time Management team that will report directly. \nAssists the business unit management on sensitive/commercial tasks within the business. \nOrganizes and maintains data in spreadsheets; generate reports; organizes paperwork and other related administrative duties as required. \nTo manage all office systems, procedures and facilities to ensure the efficient and smooth running of the office \nTo continually seek out best practice and more efficient ways of working to enhance office and general business efficiency. \nWork with IT to ensure all IT supplies and hardware for the project are ordered on time. \nCommunicate to IT if replacements required & manage the tracking of IT equipment through the Asset Panda portal. \nManage all office related service agreements. \nTo provide professional secretarial service to senior leadership team particularly in clientcorrespondence and proposals, presentation preparation. \nWork in conjunction with HR to maintain office policies as necessary.\nAll other duties associated with this role. \nEssential Criteria for the Role:\nProven experience as an administrative assistant supporting senior management in a busy office environment for 5+ years.\nQualification in Business, Level 5 or higher\nExperience working in a busy construction environment.\nExcellent working knowledge of the Microsoft Office suite - Outlook, Excel, Word, PowerPoint, OneNote, SharePoint\nExcellent working knowledge of SAP\nExperience in processing high volume employee time management system\nThe ability to work with confidential information in a professional & trustworthy manner.\nExcellent organizational, multi-tasking skills and dedicated to completing projects in a timely manner.\nThe confidence to respond to all enquiries effectively and professionally to the Senior Leadership team.\nThe ability to work on your own initiative and be an integral part of a busy team.\nAbility to effectively manage time, prioritize tasks and work within deadlines with little supervision.\nAbility to take initiative and exercise good judgment and be part of change management.\nAbility to work in a fast-paced environment.\nMercury is an equal opportunities employer.\nMercury ist der europäische Marktführer für Baulösungen.\nWir realisieren und managen komplexe Ingenieur- und Bauprojekte für die weltweit führenden Unternehmen. Unsere Lösungen helfen dabei, Technologien und lebensverändernde Fortschritte bereitzustellen, die Menschen, Gemeinschaften und Unternehmen miteinander verbinden und ihnen die Möglichkeit geben, Unglaubliches zu erreichen. Unsere Mitarbeiter haben den Mut, innovativ zu sein. Ihre Entschlossenheit und ihr ausgeprägter Fokus ermöglichen es uns, immer wieder mit Sicherheit Ergebnisse zu liefern.\nWir setzen die Visionen unserer Kunden durch zukunftsweisende Baulösungen in verschiedenen Sektoren um, darunter Enterprise-Rechenzentren, Spitzentechnologie & Biowissenschaften, Hyperscale-Rechenzentren und Brandschutz.\nBei Mercury ist es unsere Pflicht, unsere Mitarbeiter zu ermutigen und zu unterstützen, damit sie ihre Vision von sich selbst verwirklichen können. Wir stellen sie in den Mittelpunkt unseres Handelns und bieten ihnen herausfordernde Möglichkeiten zur Weiterentwicklung in einem großartigen Team in einem unterstützenden Umfeld, das es ihnen ermöglicht, ihr volles Potenzial auszuschöpfen.\nHauptverantwortlichkeiten der Stelle:\nVerantwortlich für die Organisation von Reise- und Unterkunftsbedürfnissen der Mitarbeiter.\nNimmt auf Anfrage der Geschäftsleitung an Sitzungen teil und protokolliert diese die Sitzungen und verteilen die Protokolle an alle relevanten Parteien. \nGewährleistet, dass alle Mitarbeiter über ein geeignetes Arbeitsumfeld verfügen, um ihre Aufgaben zu erfüllen. \nKoordinierung, Verwaltung und Bestellung des gesamten Bürobedarfs einschließlich der Kantinenverpflegung. \nVerwaltet die Urlaubspläne für alle leitenden Angestellten vor Ort. \nSie sind verantwortlich für den reibungslosen Ablauf im Bereich Administration, Gehaltsabrechnung und Zeiterfassung, die Ihnen direkt unterstellt sind. \nUnterstützt das Management der Geschäftseinheit bei sensiblen/kommerziellen Aufgaben innerhalb des Unternehmens. \nOrganisiert und pflegt Daten in Tabellenkalkulationen; erstellt Berichte; organisiert Papierkram und erledigt bei Bedarf weitere damit verbundene administrative Aufgaben. \nAlle Bürosysteme, -verfahren und -einrichtungen so zu verwalten, dass ein effizienter und reibungsloser Bürobetrieb \nUm kontinuierlich nach Best Practices und effizienteren Arbeitsweisen zu suchen, um diese zu verbessern Büro- und allgemeine Geschäftseffizienz. \nArbeiten Sie mit der IT-Abteilung zusammen, um sicherzustellen, dass alle IT-Materialien und Hardware für das Projekt rechtzeitig bestellt werden. \nMelden Sie sich bei der IT-Abteilung, falls Ersatzteile benötigt werden, und verwalten Sie die Nachverfolgung der IT-Geräte über das Asset Panda-Portal. \nVerwalten Sie alle bürobezogenen Dienstleistungsverträge. \nBereitstellung professioneller Sekretariatsdienste für das Führungsteam, insbesondere im Kundenbereich. Korrespondenz und Angebotserstellung, Vorbereitung von Präsentationen. \nIn Zusammenarbeit mit der Personalabteilung die Einhaltung der Bürorichtlinien sicherstellenDie\nAlle weiteren mit dieser Position verbundenen Aufgaben. \nWesentliche Kriterien für die Stelle:\nNachweislich langjährige Erfahrung als Verwaltungsassistentin mit Schwerpunkt auf der Unterstützung der Geschäftsleitung in einem geschäftigen Büroumfeld (mind. 5 Jahre). \nQualifikation im Bereich Wirtschaft, Stufe 5 oder höher \nErfahrung in der Arbeit in einem geschäftigen Baustellenumfeld. \nHervorragende Kenntnisse der Microsoft Office Suite - Outlook, Excel, Word, PowerPoint, OneNote, SharePoint \nHervorragende SAP-Kenntnisse \nErfahrung in der Verarbeitung großer Mengen von Mitarbeiterzeiterfassungssystemen \nDie Fähigkeit, mit vertraulichen Informationen professionell und vertrauenswürdig umzugehen. \nAusgezeichnete Organisations- und Multitasking-Fähigkeiten sowie hohes Engagement für die termingerechte Fertigstellung von Projekten. \nDas Selbstvertrauen, alle Anfragen an das Senior Leadership Team effektiv und professionell zu beantworten. \nDie Fähigkeit, eigeninitiativ zu arbeiten und ein integraler Bestandteil eines dynamischen Teams zu sein. \nDie Fähigkeit, die Zeit effektiv zu managen, Aufgaben zu priorisieren und innerhalb von Fristen mit wenig Aufsicht zu arbeiten. \nDie Fähigkeit, Eigeninitiative zu ergreifen, ein gutes Urteilsvermögen zu beweisen und sich an Veränderungsprozessen zu beteiligen. \nFähigkeit, in einem schnelllebigen Umfeld zu arbeitenDie\nMercury ist ein Arbeitgeber, der Chancengleichheit bietet. 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