{"id":3940762,"url":"https://alion.io/job/mercury-engineering-senior-preconstruction-planner","title":"Senior Preconstruction Planner","company":{"id":1933974,"name":"Mercury Engineering","domain":"mercuryeng.com","url":"https://alion.io/company/mercuryeng","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"HR-Manager","truth_index":null},"role":"Operations","role_family":"Operations","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":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-08-12T17:19:31Z","employer_posted_date":"2026-08-14","last_verified_at":"2026-11-08T14:22:15Z","board_verified":true,"closed_at":null,"days_open":87,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":87},"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 a portfolio of tender projects\nResponsible for all aspects of tender planning\nReporting to Planning Department\nTender Schedule Development\nPrepare comprehensive tender schedules (Level 2, 3 & 4 level of detail), schedule narratives, and progress curves / histograms aligned with bid requirements.\nCollaborate with Sales & Estimation, Preconstruction and Operations to clarify scope and milestones while clearly demonstrating the sequencing and construction methodology.\nLead the creation of 4D models and / or 2D phasing plans to present construction sequence, logistics and phasing strategies.\nPrepare scenario planning and target schedules where required.\nPlanning & Scheduling\nDevelop and maintain schedules for design, procurement, pre-construction, construction, commissioning and handover phases. Perform delay analysis, float path reviews, and milestone projections.\nData Management & Reporting\nMaintain planning databases and produce progress reports for internal and client review. Provide accurate data for payment applications and contract reviews.\nStakeholder Engagement\nAct as the primary point of contact for tender planning queries. Liaise with clients, subcontractors, and internal teams to ensure alignment by leading schedule workshop meetings.\nAttend mid-bid meetings to present Tender Schedule and deliverables as required.\nResource & Cost Loading\nApply resource and cash flow loading to schedules in coordination with estimators.\nLeadership & Training\nMentor junior planners and promote best practices in planning processes. Provide cover for Planners responsibilities when required.\nEssential Criteria for the Role:\nMinimum 7+ years’ planning and project controls experience within large-scale construction, engineering, or mission-critical environments, preferably including Data Centre tendering, preconstruction, or bid-stage planning experience.\nStrong understanding of tender and preconstruction planning requirements, including bid programmes, PCSA schedules, early works, design development, procurement strategy, construction sequencing, commissioning logic, and handover milestones.\nAdvanced proficiency in Primavera P6, with the ability to develop, maintain and present Level 2, Level 3 and Level 4 tender programmes, schedule narratives, progress curves, histograms, and target schedules aligned with bid requirements.\nAbility to build credible, logic-driven tender programmes from limited information, using assumptions, clarifications, scope documents, employer requirements, schedule specifications, contract conditions, and internal planning standards.\nAbility to collaborate effectively with Sales, Estimation, Preconstruction, Operations, Design, Procurement, Commercial, CSA, MEP, Commissioning, and subcontractor teams to clarify scope, milestones, sequencing, and key programme risks.\nExperience supporting or leading the development of 4D models, 2D phasing plans, visual sequencing outputs, logistics narratives, and construction methodology presentations to support bid submissions and client engagement.\nStrong governance and quality focus, with the ability to ensure tender and preconstruction planning outputs comply with company SOPs, client standards, bid requirements, and internal review processes prior to submission.\nAll other duties associated with this role\nMercury is an equal opportunities employer 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