Overview
At John Sisk & Son, we’re more than a construction company, we’re a family‑owned business with a global reach, committed to building excellence in every project. We deliver trust, certainty and value to our clients while embracing innovation and shaping the future of construction.
The Senior Estimator plays a critical role in accurately determining project costs and providing clear, consistent, and robust estimates that reflect real‑world construction methods and conditions. This position is ideal for an experienced construction professional—such as an ex‑Project Manager or someone with strong onsite experience—who understands how projects are delivered, the resources required, and the risks involved. With over 10 years of experience in the construction industry, the Senior Estimator will bring technical expertise, sound commercial judgement, and a deep understanding of civil engineering processes to support competitive, compliant, and well‑structured tender submissions.
Responsibilities
Management
Support the training and professional development of Estimators, Assistant Estimators, and Graduate Estimators.
Assist in creating and implementing personal development plans for direct reports and follow up on agreed actions.
General
Log, track, and manage all tender documentation, including addendums and client correspondence, ensuring timely distribution to relevant team members.
Prepare subcontractor enquiry schedules based on input from the tender team and procurement.
Issue subcontract enquiries with clear scopes of work and attendance requirements.
Issue material enquiries, assess supplier responses, and benchmark against current market conditions.
Organise the production of Bills of Quantities and carry out spot checks for accuracy.
Follow up on tender returns, raise queries, and maintain live enquiry schedules.
Review design information on Design & Build tenders to identify value engineering opportunities.
Compile clarifications, estimator notes, and maintain accurate records for audit and file purposes.
Incorporate late tender amendments into costings and submissions.
Contribute to tender risk and opportunity assessments and support the development of risk and value engineering schedules.
Tendering and Cost Analysis
Maintain and regularly review risk registers for bids.
Lead tender reviews, implementing corrective actions where required.
Analyse subcontractor tender packages and prepare comparative analysis schedules for adjudication.
Assess package requirements for fixed prices and contingency allocations.
Prepare documentation for tender settlement, clearly presenting net costs, risks, and opportunities.
Complete tender sum analysis, including cash flow forecasts, for approval and adjudication.
Attend adjudication meetings and apply resulting amendments.
Prepare client pricing documents, including Forms of Tender, Contract Sum Analyses, and preliminaries breakdowns.
Develop cash flow models for bids and support the management of bid budgets within agreed limits.
Experience
Proven working experience in Civil Engineering or Construction, with at least 5 years in an estimating role.
Strong understanding of onsite operations, construction sequencing, resources, and real‑world delivery challenges, preferably with experience as a Project Manager or equivalent.
Experience on civil engineering projects; direct site experience is an advantage.
Proven track record in preparing tenders and leading submissions.
Experience participating in estimate reviews and adjudication processes.
Familiarity with the Public Works Contract, FIDIC, NEC, and related forms of contract.
Experience working on Design & Build projects is advantageous.
Knowledge of the Irish civil engineering/construction supply chain is beneficial.
Qualifications
Degree in Civil or Structural Engineering, Construction Management, Quantity Surveying, or equivalent relevant qualification.
Valid CSCS card.
Membership of a recognised professional body (or working toward it) is desirable.
Evidence of ongoing professional development in estimating, pre‑construction, or commercial management is an advantage.
Additional Information
What We Offer
At Sisk, your rewards package goes far beyond your salary. Our most valued benefits include:
Competitive salary
26 days annual leave
Pension scheme
Comprehensive health, wellbeing and lifestyle supports
Career development opportunities
And much more as part of our Total Rewards programme
Equity, Inclusion & Accessibility
We are an equal opportunities employer. We welcome applications from all qualified candidates regardless of gender, race, ethnicity, disability, age, sexual orientation, religion, family status or any other protected characteristic. We are committed to providing reasonable adjustments throughout the recruitment process to support all candidates.
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