Principal Estimator - Defence

Principal Estimator - Defence Principal Estimator - Defence The location of the role is Ashton Vale, Bristol (hybrid working) . The duration of the contract is 12 months . The pay rate on offer is £70 - £87 per hour (via Umbrella agency) . Business Unit: Mission Systems Make an Impact The UK Submarines Principal Estimator will support delivery within our Mission Systems business area. We are a trusted provider of integrated solutions for global defence and security. We have a wide portfolio of best-in-class intelligence surveillance and reconnaissance solutions, communications, and weapons launch and handling solutions across all domains, integrating the best of industry to meet our customers’ needs. The difference our new Principal Estimator will make As a UK Submarines Principal Estimator, you’ll have a role that’s out of the ordinary, you’ll be working on supporting the delivery of vital military capability. With our track record of innovation, you’ll continually develop your knowledge and expertise. Day to day, you’ll be supporting the UK Submarine Portfolio in providing project estimating services. As the UK Submarines Principal Estimator, you will play a crucial role in managing the cost and financial aspects of programme delivery through to completion. This includes the development and implementation of effective cost estimating processes and techniques, to ensure that the forecasts for both bids and on-contract work are robust. The UK Submarines Principal Estimator will collaborate closely with the many stakeholders within the team to develop cost estimates and forecasts, identifying potential risks and variance that may impact the Estimate to Complete (ETC). Key accountabilities of the role Establish, implement, and maintain best practice estimating systems across the Portfolio, including standardisation of approach within the Portfolio working with the Project Controls discipline. Coordinate and develop project work-in-progress (WIP) commitment and estimate at complete (EAC) forecasts. Coordinate and develop estimates for bid proposals and large value contract changes. Support the development of the Cost Breakdown Structure (CBS) for new projects. Liaising with Risk, Scheduling, Cost Control Discipline Leads to ensure robust and integrated estimates. Provide key input into the production and management of Control Account Plans, including establishing basis of estimates and cost related assumptions and dependencies. Own Cost Risk Analysis (CRA) for the portfolio. Key skills and experience Considerable experience in the advanced application of Estimating techniques in a relevant technical project environment across the full project lifecycle. Previous experience on complex defence Projects (desirable, but not essential) Ability to champion high performance and inspire others. Strong commercial awareness and an understanding of contract and commercial management. Experience working with senior level managers both internally and externally.

Location: Bristol,, GB

Posted Date: 9/14/2025