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Senior Estimator

Business Unit:  Strategic Infrastructure
Requisition Number:  9234

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 8 July 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. Interviews to be held week commencing 13 and 20 July. 

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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.

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