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At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.
We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships.
Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.
About the Role
Amentum is seeking an experienced Estimator to join our Water Division, supporting the successful delivery of water and wastewater infrastructure projects across the UK. The successful candidate will have proven estimating experience within the UK water sector, developing accurate and commercially robust cost estimates for projects from early-stage opportunities through to tender submission and contract award. Previous water industry experience is essential.
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Key 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.
Here's What You'll Need
- 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.
Desirable Experience
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- Clean water and wastewater infrastructure.
- Water and wastewater treatment works.
- Pipelines, pumping stations and associated assets.
- MEICA and civil engineering works.
- AMP/framework delivery environments.
- NEC contracts.
- Major projects and capital delivery programmes.
- Experience working with UK water companies or Tier 1 contractors.
Our Culture
Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.
We aim to embed inclusion in everything we do. We know that if we are inclusive, we’re more connected, and we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks.
We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.
If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.
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