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Contract

Senior Mechanical Estimator

Astute People
City of London
money-bag £75.00 - £84.00/hour
Posted: 20 August 2026 (Today)
Closing date: 19 September 2026
Ref: 225518683


Astute''s Power team are currently recruiting for a Senior Mechanical Estimator to join the team supporting the Net Zero project. This is an opportunity for an experienced estimator with a strong mechanical construction background to take a senior role within the estimating team, supporting accurate project pricing, cost forecasting and commercial submissions.
The Senior Mechanical Estimator position come with a hourly rate from -75.00 to -84.00 inside IR35.

Role responsibilities and key skills for the role:

  • Lead and support estimating activities across assigned bid teams, including managing estimating workload and resources.
  • Prepare accurate costings for materials, labour and equipment through detailed review of drawings and specifications.
  • Review contract submission requirements and ensure all financial information and compliant design proposals are accurately captured.
  • Establish and agree key plant rates, working closely with engineering and planning teams to agree construction methods, outputs and plant selection.
  • Analyse subcontractor quotations and manage the preparation of preliminary and general expense pricing, including plant schedules and risk assessments.
  • Prepare settlement papers and undertake adjustments required prior to financial submissions.
  • Take responsibility for the sign-off of cost elements and ensure cost planning reflects project requirements and risk profiles.
  • Work with subcontractors and specialist suppliers to develop cost forecasts and reports.
  • Coordinate the production of cost information and submissions for senior management.
  • Respond to customer queries, including post-tender queries, and contribute to customer meetings and presentations.
  • Ensure effective handover of bid documentation to the project commercial team.
  • Undertake measurement, quantity take-offs and pricing using relevant estimating systems and digital tools.
  • Support the development and implementation of digital estimating tools, including 5D cost planning.
  • Provide mentoring, commercial and technical guidance to Estimators and wider bid teams.

Experience required:
  • Previous experience estimating the site erection and installation of large-scale mechanical equipment, including HRSG boilers, steam turbine generators, bespoke mechanical equipment, skids and modules.
  • Detailed knowledge of high-integrity pipework systems and exotic pipework materials.
  • Experience tendering projects within petrochemical, nuclear or other regulated environments.
  • Experience working with NAECI labour agreements.
  • Experience pricing and developing customer MTOs.
  • Previous experience managing estimating processes within the construction industry.
  • Valid CSCS card.
  • Relevant professional qualification or membership of a professional body is desirable, such as RICS, CIOB, RIBA, ICE or CIBSE.
  • Knowledge of Lean Construction and 5D cost planning is desirable.
  • Understanding of BIM, including the ability to read and assemble BIM models and produce appropriate reports.
  • Strong communication and interpersonal skills, with the ability to build effective relationships with customers, partners and stakeholders under pressure.
  • Previous team leadership experience is desirable.
  • Strong IT, numeracy, MS Office and estimating systems skills.

Location, rate and timeframe of the Senior Mechanical Estimator position:
  • Rate: -75-85.00 per hour
  • Contract length: 6 months
  • Start date: September
  • Location: London

Astute People are acting as an employment business in relation to this vacancy. We do not discriminate on the grounds of age, race, gender, disability, creed or sexual orientation and comply with all relevant UK legislation. We encourage applications from individuals from all backgrounds but candidates must be able to demonstrate their ability to work in the UK. Astute is also committed to the government''s Disability Confident Employer initiative. We endeavour to get back to everyone, however, if you have not heard anything after 7 days, please consider your application unsuccessful.

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