Principal Estimator

WorleyParsons; Monrovia (CA); On-site; USD 70,000 - 90,000; Full time

Job summary

A global professional services company is seeking a full-time cost estimator in Monrovia, California. The candidate will be responsible for preparing cost estimates, developing estimating standards, and guiding project teams. A recognized degree in Engineering or Construction Management is required along with strong technical and leadership skills. The role includes adherence to estimating procedures and presenting cost information to management. Join us to drive sustainable impact and be part of diverse opportunities.

Qualifications

• Degree or equivalent experience ideally in Engineering or Construction Management.
• Prior roles in Project Controls, Commercial, and Estimating Management.

Responsibilities

• Ensure adherence to cost estimating procedures.
• Develop estimating standards and systems.
• Provide cost estimating guidance to projects.
• Prepare and present cost estimating information to management.

Skills

Technical and practical estimating skills

Software proficiency (MS Office Suite and discipline-specific tools)

Project planning and scheduling

Leadership in multi-disciplinary teams

Education

Recognized degree in Engineering or Construction Management

Job description

Company: Worley

Primary Location

USA-CA-Monrovia

Schedule

Full-time

Employment Type: Employee

Job Posting

Mar 2, 2026

Unposting Date

Apr 2, 2026

Reporting Manager Title: Senior Director of US Estimating

Building on our past. Ready for the future

Worley is a global professional services company of energy, chemicals and resources experts. We partner with customers to deliver projects and create value over the life of their assets. We’re bridging two worlds, moving towards more sustainable energy sources, while helping to provide the energy, chemicals and resources needed now.

Responsibilities

• Ensure adherence to the preparation and/or supervision of cost estimates in accordance with the approved procedures during various project phases including Pre-FEED and FEED
• Provide support in the development of estimating standards, procedures and systems for the estimating of tenders and proposals
• Provide cost estimating guidance to projects
• Work with the team to define an appropriate Work Breakdown Structure (WBS) in accordance with the customer and project requirement
• Prepare the estimate plan to include establishment of the estimating methodology and cost estimating principles applicable to the estimate preparation.
• Review design scope criteria and quantities for completeness and coordinate with the project to develop additional estimating bases when information is incomplete.
• Support the collection, verification and integration across all work scope into the cost estimate
• Provide support in identifying, analyzing, and providing innovative solutions to cost estimating problems.
• Compare and analyze scope, quantities and cost data between projects. In comparison with previous estimates, outcome costs and vendor prices, carry out benchmark estimates through high level norms and industry standards
• Support the development of future benchmarking and estimating tools.
• Develop escalation model where required and assist with the development of owners cost.
• Coordinate identification of areas of risk in the compilation of cost estimates and evaluate appropriate levels of contingency. Where necessary perform Monte Carlo type risk analysis of costs estimates to determine contingency and accuracy levels.
• Ensure sound quality of cost estimates adhering to the Worley Cost Estimating review procedures at varying project phases.
• Prepare and present cost estimating information to management/customer. This may include the development of Basis of Cost Estimate report.
• Participate in establishing pricing structures to be applied to quantities for estimates.
• Prepare cost trend estimates in support of project cost trend programs.

Technical and Industry Experience

• Thorough technical and practical estimating skills and able to consistently deliver quality, accurate and timely work to Worley and its customers.
• Knowledge of the fundamental requirements of the discipline, and the basic requirements of other disciplines
• Knowledge of applicable local and international standards and statutory and regulatory requirements.
• Highly competent in the use of relevant software such as MS Office Suite and discipline specific software and tools.
• Thorough technical, practical and leadership experience in the relevant discipline, including experience in project engineering and management with specialized estimating expertise.
• An understanding of project planning and scheduling experience and demonstrable leadership in working with a multi-disciplinary team in large scale projects.

Education, Qualifications, Accreditation, Training

Required:

• A recognized degree in the relevant discipline or equivalent qualification/experience, ideally in Engineering or Construction Management.
• Experience to include positions held in Project Controls, Commercial and Estimating Management positions and Construction site experience.

Moving forward together

We’re committed to building a diverse, inclusive and respectful workplace where everyone feels they belong, can bring themselves, and are heard. We provide equal employment opportunities to all qualified applicants and employees without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by law.

We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation.

And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology.

Whatever your ambition, there’s a path for you here. And there’s no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.