Water Infrastructure Estimator (UK) – Hybrid

Amentum; Greater London; Hybrid; GBP 40,000 - 65,000; Full time

Benefits offered by this job

Free medical cover

Enhanced parental leave

Employee assistance programs

Professional development memberships

Job summary

Amentum is seeking an estimator to prepare detailed estimates for water and wastewater infrastructure projects in the UK. You will review tender documents, develop cost models and pricing schedules, and evaluate supplier quotations.

This role requires collaboration with engineering, commercial, procurement and operations teams to support risk assessment and value engineering. We value strong analytical skills, Excel proficiency and experience in pricing tenders, with a focus on delivering

Qualifications

• Proven estimating experience within the UK water sector.
• Experience pricing water and/or wastewater infrastructure projects.
• Strong understanding of relevant construction methodologies and delivery practices.
• Ability to interpret drawings, specifications and tender documentation.
• Commercial awareness with the ability to assess project risks and opportunities.
• Experience managing supplier and subcontractor pricing exercises.
• Strong analytical, numerical and problem-solving skills.
• Proficiency in Microsoft Excel and estimating software.
• Excellent communication and stakeholder management skills.

Responsibilities

• Prepare detailed estimates for water and wastewater infrastructure projects.
• Review tender documentation, drawings, specifications and client requirements.
• Develop first-principles estimates, cost models and pricing schedules.
• Obtain and evaluate supplier and subcontractor quotations.
• Identify risks, opportunities, assumptions and exclusions within tender submissions.
• Collaborate with engineering, commercial, procurement and operational teams throughout the bidding process.
• Support value engineering initiatives and cost optimisation opportunities.
• Maintain estimating records, benchmarking data and historical cost information.
• Participate in tender, risk and commercial review meetings.
• Support project handovers following contract award.

Skills

Estimating experience

UK water sector

Cost modelling

Pricing tendering

Excel proficiency

Tools

Microsoft Excel

Estimating software

Job description

Amentum is seeking an estimator to prepare detailed estimates for water and wastewater infrastructure projects in the UK. You will review tender documents, develop cost models and pricing schedules, and evaluate supplier quotations.

This role requires collaboration with engineering, commercial, procurement and operations teams to support risk assessment and value engineering. We value strong analytical skills, Excel proficiency and experience in pricing tenders, with a focus on delivering