Senior Estimator

ABOUT THIESS

Founded in Australia in 1933, Thiess has grown into a global leader in sustainable mining services and resource solutions, with more than 15,000 employees and operations spanning multiple continents. Today, we deliver mining services, land reclamation, and engineering expertise that help shape the future of the resources industry, creating lasting value for our clients, communities, and people.

At Thiess, you’re not just joining a company; you’re joining a team helping redefine what sustainable mining looks like for future generations. North America is a key part of our global growth journey, with operations across the United States and Canada and continued expansion into new regions. From Salt Lake City and the Intermountain West to Sudbury and Northern Ontario, our people are solving complex challenges, embracing innovation, and building careers with real impact.

We’re looking for people who want to do meaningful work, grow alongside a global organization, and help drive the future of mining and resource solutions. Learn more about our purpose, values, and the opportunities ahead by watching the following videos about Our Purpose and Our Values!

ROLE OVERVIEW:

As a Senior Estimator, you will support Thiess throughout North America. This position is responsible for developing, managing, and coordinating capital cost estimates for mining and reclamation projects. In this role, you will partner closely with mining and construction teams while managing special projects and collaborating across departments to ensure successful project execution.

This role is intended for an experienced senior estimator with experience leading large capital cost estimates for mining studies, major project development programs, and execution-stage mining projects. The successful candidate will have demonstrated experience coordinating multi-discipline estimates for mining, waste storage, reclamation, closure, and site development scopes. Experience leading estimates for PEA, PFS, FS, execution, sustaining capital, and large projects is strongly preferred. Contractor-side, construction, field, or preconstruction experience is considered a significant asset.

KEY RESPONSIBILITIES

• Deliver estimating for complex projects ranging from $1M to $10B+ across open pit mines, infrastructure, utilities, and multi-phase study programs
• Support large-scale mining studies (PEA, PFS, FS), execution-stage planning, sustaining capital programs, and portfolio-level estimates
• Coordinate and compile input parameters to develop timely multi-discipline cost estimates and implementation schedules
• Work closely with engineering, operations, and stakeholder teams to detail scope and validate material takeoffs, drawings, and client-provided data
• Identify, assess, and quantify project risks and opportunities, including potential schedule impacts through design reviews and formal risk analyses
• Develop estimate execution plans and partner with HR to outline labor-force work strategies and site-specific wages that support assumptions, and staffing needs
• Support BDM interface with client counterparts and serve as the primary estimating point of contact ensuring clear communication, scope alignment, and estimate defensibility
• Drive innovative solutions and apply industry trends and best practices to maintain efficiency and competitiveness
• Prepare basis of cost estimate report deliverables for the end user
• Support special projects and perform other related duties as needed

WHAT YOU'LL BRING

Education

Bachelor’s degree or equivalent in Engineering, Construction Management, or related field. Mining Engineering is preferred

Experience

• Minimum 7 years of estimating experience with technical expertise across mining and heavy civil earth works
• Proficient in developing cost estimates for mining or heavy civil related projects including open pit, material handling, crushing and conveying, and site infrastructure facilities
• Demonstrated ability to lead large studies and program-level estimates, including coordinating multiple technical disciplines, managing estimate inputs, reviewing estimate maturity, and presenting estimate results to project teams and clients
• Advanced understanding of various contract structures and their impact on estimating, utilizing high-level professional judgment, creativity, and innovative strategies to solve complex estimating challenges
• Experience with databased estimating platforms (CATS, InEight Estimate, Sage Timberline Estimating, On-Screen Take-Off, MCASES MII, IPE, HCSS or other)
• Experience with one or more scheduling software (Primavera P6, MS Project)
• Proven success in driving end-to-end estimating activities, encompassing plan development, team coordination, technical review, and formal presentation to key stakeholders and clients
• Ability to guide and mentor team members in estimating techniques and methodologies
• Positive attitude with strong relationship building skills
• Valid Driver’s License
• Authorization to work lawfully in the USA without sponsorship from Thiess
• Must be fluent in the English language

PHYSICAL REQUIREMENTS

• Work is primarily performed in an office environment, with prolonged periods of sitting, typing, and viewing a computer screen
• May occasionally require standing, walking, or lifting objects weighing up to 25 lbs such as files, laptop equipment, or office supplies
• Must have adequate vision, hearing, and hand–eye coordination to perform computer and phone-based work effectively
• Occasional travel to project sites, meetings, or training may be required, which can involve driving or extended periods of sitting
• When visiting operational sites, the employee must comply with all site safety requirements and wear appropriate personal protective equipment (PPE) as needed
• Must be physically capable of safely performing the essential duties of the position with or without reasonable accommodation

ADDITIONAL INFORMATION

• At Thiess we have a One HSE culture and want to ensure everyone is safe everyday: employees, families, and society. We are committed to our employees' health and wellness including the prevention of illness. Although optional, we have a preference that all Thiess employees are vaccinated against COVID-19 and other serious illnesses.
• Work schedule: This role follows a ​Monday-Friday​ schedule. Additional hours may be required to meet business needs.
• Travel: Ability to travel for site reconnaissance and interfacing with clients and stakeholders (domestic and some international travel may be required).
• Pre-Employment Requirements
  • Drug/Alcohol Screening
    Background Check
    Fit-for-duty evaluation
    MSHA Part 48 Verification
• Pay Range: $140,000-170,000 annual base salary USD

WHAT WE OFFER

• A work culture that follows our company values of integrity, accountability, and innovation, all underpinned by safety
• Comprehensive medical benefits including private health insurance with premium coverage for the employees and competitively subsidized private health insurance for immediate family
• Employee Assistance Program (EAP)
• 401K retirement savings benefit with employer matching contributions
• Career development and opportunities domestic within the US, and potentially international
• PTO, Paid Holidays
• Possible domestic relocation assistance

EEOC STATEMENT + PRE-EMPLOYMENT/POST-OFFER BACKGROUND CHECK DISCLOSURE

If you are selected for a position in the United States, your employment will be contingent upon submission to and successful completion of a post-offer/pre-placement drug test (and alcohol screening/medical examination if required by the role) as well as pre-placement verification of the information and qualifications provided during the selection process.

THIESS is committed to providing equal employment opportunity to all employees and applicants and to maintaining a workplace free from unlawful discrimination and harassment. Employment decisions are made based on qualifications, merit, business needs, and other lawful job-related factors. To support this commitment, THIESS will ensure that:

• Persons are recruited, hired, assigned, trained, promoted, compensated, and otherwise employed without regard to race, color, religion, sex, national origin, age, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.
• All other personnel actions, including compensation, benefits, transfers, layoffs, recalls, training, education, tuition assistance, and recreational or social programs, are administered without regard to any characteristic protected by applicable federal, state, or local law.
• Employees and applicants will not be subjected to harassment, intimidation, threats, coercion, retaliation, or discrimination because they have:
• Filed a complaint;
• Assisted or participated in an investigation, compliance review, hearing, or other activity related to the enforcement of federal, state, or local equal employment opportunity or employment laws;
• Opposed conduct reasonably believed to violate applicable equal employment opportunity or employment laws; or
• Exercised any other right protected by applicable federal, state, or local law.

THIESS remains committed to complying with all applicable equal employment opportunity laws and, where applicable, its affirmative action obligations relating to individuals with disabilities and protected veterans under federal law.

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