Senior Estimator - Water Infrastructure Lead in Peterborough

Here within the @one Alliance, we are a totally collaborative organisation made up of our eight partner companies (Anglian Water, Balfour Beatty, Barhale, Binnies, MMB, MWH Treatment, Skanska and SWECO) and our extended supply chain, delivering over half of Anglian Water's capital investment programme. Water and the natural environment are the foundation of life, society, and our economy. The East of England is home to unique rivers, wetlands, and coastlines but it is also one of the most water‑stressed regions in the UK. With one of the most ambitious capital investment programmes in the industry, we are delivering resilient water supplies, enabling sustainable growth, tackling climate change, and protecting the natural environment.

The Opportunity

We are looking for an experienced Estimator to join the @one Alliance and play a key role in shaping the future of water infrastructure across the East of England. As a Senior Estimator, you will be a vital part of either our Central Estimating Team or embedded within a Business Unit, supporting a wide range of projects, including Water & Water Recycling Treatment Plants, Pipelines, Pumping Stations & Reservoirs and Network Storage. Working within an outperformance contract model, you will lead on developing robust cost estimates while challenging all aspects of construction costs, risk, and overheads.

Key Responsibilities

• Estimation & Project Support
• Produce CAPEX estimates across optioneering, outline, and detailed design stages.
• Collaborate with multi-disciplinary teams to define scope and buildability.
• Engage with supply chain partners to obtain accurate quotations.
• Prepare estimates using industry software and MS Excel.
• Stakeholder Engagement
• Advise and challenge on design requirements and cost impacts.
• Support delivery teams with estimating strategy and alliance processes.
• Manage priorities and expectations across multiple stakeholders.
• Leadership & Development
• Mentor and support junior estimators.
• Potential line management responsibilities.
• Deputise for the Head of Estimating when required.
• Systems & Continuous Improvement
• Develop and maintain cost models and libraries.
• Identify efficiencies and implement best practices.
• Maintain and analyse data within cost bases.
• Ensure smooth handover of estimates to delivery teams.
• Align estimates with Anglian Water cost capture requirements.
• Health, Safety & Wellbeing
• Champion a strong safety culture and 'Safer Every Day' mindset.
• Ensure compliance with all H&S policies and procedures.
• Contribute to continuous improvement and a zero‑accident culture.

Qualifications

• Educated to degree level (Engineering, Quantity Surveying) or equivalent experience.
• Experienced in infrastructure, utilities, or construction environments.
• Confident working across civil, mechanical, electrical, or process disciplines.
• Strong analytical and numerical ability.
• Excellent communication and collaboration skills.
• Proactive, motivated, and eager to learn.
• Highly organised and able to meet deadlines.
• Advanced MS Office skills and familiarity with estimating software.

Benefits

• Competitive salary.
• Company pension.
• Life assurance.
• Private medical.
• 25 days of annual leave in addition to 8 public bank holidays and loyalty days.
• 8 hours volunteering.
• Employee Assistance Programme to support mental, physical and financial wellbeing.
• Flexible benefits via salary sacrifice.
• Company car/green car scheme/car allowance/Van (dependent on position).
• Leadership & management training and coaching.
• Regular line management engagement and appraisal to support your career progression.
• Development supported by internal and externally delivered training.
• Continuous service awards.