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O’Halloran & O’Brien Ltd are currently recruiting a Senior Estimator with 8 - 10 years’ experience in the industry.

Role & Responsibilities:

  • The Senior Estimator will take the lead in preparation of tenders, PQQ and bid submissions.
  • Responsible for planning tenders to ensure timely and accurate preperation of tender documents
  • Ensure effective team collaboration with the wider business, communicating with operations and commercial teams.
  • Work closely with the operational and commercial teams to develop and build relationships with the supply chain members, both existing and new.
  • Attend meetings such as mobilisation meetings, handover meetings, design meetings, bid meetings.
  • Ensure tender programmes, design information and methods of construction are developed with the Planning and Technical Teams.
  • Develop and improve I.T. systems for tendering.
  • Engage with supply chain to gain commitment and ‘best solution'.
  • Develop systems and procedures within the department with the senior members of the team.
  • Maintain and continuously improve commercial awareness.


  • Relevant Degree or equivalent
  • Minimum 8 years Quantity Surveyor or Estimator experience is desirable
  • Proven track record of winning profitable work
  • Good understanding of business development and the bidding marketplace
  • Advanced IT Skills incl. Estimating Software Packages
  • Organisation and project management skills, able to prioritise


  • Competitive salary, with confidence of working for a new and upcoming company.
  • Opportunity for progression within the company.
  • An opportunity to work on some of the most exciting Construction projects in London.
  • Dedicated Training & Development Department.

O'Halloran & O'Brien are an Equal Opportunities Employer and we abide by the Equalities Act 2010.

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Groundworks and Civil Engineering

O’Halloran and O’Brien LTD,
O’Brien House, 197 – 199 Garth Road,
Morden, Surrey, SM4 4NE

020 8337 5527
Concrete Frames

O'Halloran & O'Brien
Unit 2 Dalefield Industrial Park,
Dalefield Way Gravesend, Kent, DA12 2FL

01322 423100