Senior Estimator

Date Posted: 2026-09-18T00:00:00

Location: Warwick, Warwickshire, GB, CV34 4

Application Deadline: 2026-12-20T11:05:16.437

About the role

Shape the cost of the UK's future energy infrastructure. Join National Grid Strategic Infrastructure and play a pivotal role in defining how some of the UK's most critical infrastructure is delivered. This isn't just estimating - it's influencing how major programmes are planned, costed, and brought to life. From substations to large-scale construction projects, your insight will help deliver infrastructure that powers homes, businesses, and communities nationwide.

Hybrid working across home, office, and site - with team collaboration in Warwick and project visits - giving you direct exposure to major project delivery.

Why this role stands out

Unrivalled scale - multi-million to multi-billion-pound programmes

End-to-end impact - influence cost strategy from concept to delivery

Complex, high-profile work - evolving scope, contractor strategies, technical inputs

Highly regulated environment - where accuracy and governance are critical

Real-world impact - deliver infrastructure that keeps the country running

What you'll be doing

Develop robust cost estimates across civil, mechanical and E&I works

Support procurement and contracting strategies with Commercial teams

Produce clear Basis of Estimate documentation

Update and refine estimates as projects evolve

Benchmark contractor submissions and provide commercial insight

Provide cost intelligence to design and delivery teams

Standardise supplier data to ensure consistent cost comparisons

What we're looking for

We're keen to hear from estimators with experience in major infrastructure, engineering or defence environments. You’ll bring:

Experience estimating large-scale infrastructure projects

Strong understanding of construction methodologies and cost drivers

Background in transmission or similar sectors (nice to have)

Knowledge of HV electrical (33kV-400kV) (advantageous, not essential)

Strong commercial awareness and decision-making ability

An analytical, results-driven approach with strong stakeholder skills

If you've worked on complex asset builds or large project costing, we'd love to hear from you - even if your experience is outside electricity transmission.

What you'll get

A competitive salary between 61,000 - 70,000 - dependent on capability. As well as your base salary, you will receive a bonus based on personal performance and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to a number of flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.

About us

National Grid Strategic Infrastructure is a Business Unit created to propel our grid forward to deliver in 5 years, what has been achieved in the previous 30. By 2030 we aim to have 17 new major infrastructure projects live across England, Scotland and Wales.

Here at National Grid, we connect homes and businesses to power, making sure supply and demand match each other. We make sure the lights are on in schools, operating theatres, and sporting arenas; we're thousands of people working on behalf of millions of people.

Our investment in Strategic Infrastructure via The Great Grid Upgrade will mean more home-grown power, greater energy security and a cleaner future. Whatever your role, wherever you work with us, you'll help us hit stretching targets and achieve our far-reaching goal: to secure, clean energy that supports our world far into the future. Here, you will be at the heart of energy.

More information

This role closes on 30 September 2026 at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

#LI-SM1#LI-HYBRID

We value diversity and are committed to creating an inclusive workplace for all. We welcome applications from all suitably qualified candidates - we make appointments purely on merit, assessed against objective selection criteria. We support flexible working and will make reasonable adjustments throughout the recruitment process should you have any physical or mental impairment which may affect your ability to participate in the process.

Please note that in most cases, National Grid is unable to offer sponsorship for employment under the UK points-based immigration system. As such, applicants must have the legal right to work in the UK without requiring sponsorship now or in the future under the UK points-based immigration system. However, in exceptional circumstances where there is a clear and demonstrable need for specialist skills that cannot be sourced from the local labour market, National Grid may consider offering sponsorship. All applications are welcome from candidates who meet these requirements, regardless of race, nationality, or ethnic origin.

#s1-Gen

About the roleShape the cost of the UK's future energy infrastructureJoin National Grid Strategic Infrastructure and play a pivotal role in defining how some of the UK's most critical infrastructure is delivered.This isn't just estimating - it's influencing how major programmes are planned, costed, and brought to life. From substations to large-scale construction projects, your insight will help deliver infrastructure that powers homes, businesses, and communities nationwide.Hybrid working across home, office, and site - with team collaboration in Warwick and project visits - giving you direct exposure to major project delivery.Why this role stands outUnrivalled scale - multi-million to multi-billion-pound programmesEnd-to-end impact - influence cost strategy from concept to deliveryComplex, high-profile work - evolving scope, contractor strategies, technical inputsHighly regulated environment - where accuracy and governance are criticalReal-world impact - deliver infrastructure
that keeps the country runningWhat you'll be doingDevelop robust cost estimates across civil, mechanical and E&I worksSupport procurement and contracting strategies with Commercial teamsProduce clear Basis of Estimate documentationUpdate and refine estimates as projects evolveBenchmark contractor submissions and provide commercial insightProvide cost intelligence to design and delivery teamsStandardise supplier data to ensure consistent cost comparisonsWhat we're looking forWe're keen to hear from estimators with experience in major infrastructure, engineering or defence environments.You'll bring:Experience estimating large-scale infrastructure projectsStrong understanding of construction methodologies and cost driversBackground in transmission or similar sectors (nice to have)Knowledge of HV electrical (33kV-400kV) (advantageous, not essential)Strong commercial awareness and decision-making abilityAn analytical, results-driven approach with strong stakeholder skillsIf you've worked on
complex asset builds or large project costing, we'd love to hear from you - even if your experience is outside electricity transmission.What you'll getA competitive salary between 61,000 - 70,000 - dependent on capability.As well as your base salary, you will receive a bonus based on personal performance and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to a number of flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.About usNational Grid Strategic Infrastructure is a Business Unit created to propel our grid forward to deliver in 5 years, what has been achieved in the previous 30. By 2030 we aim to have 17 new major infrastructure projects live across England, Scotland and Wales.Here at National Grid, we connect homes and businesses to
power, making sure supply and demand match each other. We make sure the lights are on in schools, operating theatres, and sporting arenas; we're thousands of people working on behalf of millions of people.Our investment in Strategic Infrastructure via The Great Grid Upgrade will mean more home-grown power, greater energy security and a cleaner future.Whatever your role, wherever you work with us, you'll help us hit stretching targets and achieve our far-reaching goal: to secure, clean energy that supports our world far into the future. Here, you will be at the heart of energy.More informationThis role closes on 30 September 2026 at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary. #LI-SM1#LI-HYBRIDWe value diversity and are committed to creating an inclusive workplace for all. We welcome applications from all suitably qualified candidates - we make appointments
purely on merit, assessed against objective selection criteria. We support flexible working and will make reasonable adjustments throughout the recruitment process should you have any physical or mental impairment which may affect your ability to participate in the process.Please note that in most cases, National Grid is unable to offer sponsorship for employment under the UK points-based immigration system. As such, applicants must have the legal right to work in the UK without requiring sponsorship now or in the future under the UK points-based immigration system. However, in exceptional circumstances where there is a clear and demonstrable need for specialist skills that cannot be sourced from the local labour market, National Grid may consider offering sponsorship. All applications are welcome from candidates who meet these requirements, regardless of race, nationality, or ethnic origin.

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