Estimator I

About Us

Irby Construction Company has been building infrastructure for the power industry for more than 75 years. Our business values and performance-driven mindset guide our actions. Our approach to work starts with safety, puts people first, seeks to innovate, and promises to perform.

Irby is proud of its inclusive work environment, family-oriented culture, excellent benefits, and clear pathways for career growth. We strive to provide every employee with clear expectations and opportunities for advancement. What’s more, Irby has long long-valued tenure. In fact, many of our executive leaders started with Irby early in their careers and in the field.

When you join our team, you join an established firm, with a culture centered around its people. Teamwork is how we work. There is no other way. Pride is ever-present inside our offices and the bond of brotherhood runs strong among our crews.

Irby Construction is a wholly-owned subsidiary of Quanta Services. That means team Irby gets the benefits of the company culture we’re known for along with the stability and resources of a Fortune 500 organization. (NYSE: PWR).

Build your career at Irby Construction.

About this Role

The Estimator I – BESS supports the development of cost estimates and proposals for large-scale Battery Energy Storage System (BESS) projects. This entry-level role focuses on developing foundational estimating skills in the electrical and EPC (Engineering, Procurement, Construction) disciplines, while learning to interpret design documents, assess constructability, and contribute to accurate project cost modeling.

What You'll Do

• Assist in preparing preliminary cost estimates for BESS and Data Center projects under supervision.

• Review proposal documents, drawings, single-line diagrams, and electrical one-lines to identify project requirements.

• Support material take-offs, vendor quote requests, and subcontractor scope development.

• Maintain records of estimates, design updates, and supporting documentation.

• Participate in pre-bid site visits and virtual meetings to assess project conditions.

• Assist with identifying risks, schedule constraints, and constructability factors specific to BESS and mission-critical projects.

• Learn to read and analyze KMZ files, BOMs, submittals, and engineering specifications.

• Support preparation of RFP responses and bid documentation.

• Participate in project cost forecasting and cash flow exercises.

What You'll Bring

• Bachelor’s degree in Construction Management, Electrical Engineering, or related field, or equivalent experience.

• Strong interest in electrical systems, renewable energy, and data infrastructure projects.

• Basic understanding of estimating principles, cost modeling, and project documentation.

• Proficient in Microsoft Excel, Bluebeam, and general computer literacy.

• Detail-oriented and analytical with strong organizational skills.

Preferred

• 2 years of experience in estimating, design, or field engineering for electrical, industrial, or renewable energy projects.

• Familiarity with AutoCAD, Procore, or Accubid is a plus.

Physical Qualifications

• Primarily office-based with occasional travel to project sites for pre-bid meetings and site assessments.

• Ability to sit for extended periods while working on a computer.

• Occasional lifting and carrying of up to 20 pounds (e.g., project documents, laptop).

• Must be able to navigate construction sites safely when visiting field locations.

• Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions.

What You'll Get

• Comprehensive Medical Coverage– Multiple BCBS medical plan options, all with in-network preventive care covered at no cost, the same nationwide provider network, and access to virtual care for primary care, dermatology, general medical needs, and mental health support.

• Prescription Drug Coverageincluded with all medical plans, plus tools and advocacy support to help manage healthcare costs.

• Dental & Vision Coverage– Dental plans with 100% coverage for preventive care and orthodontia options for adults and children, plus vision coverage with annual exams and frame allowances.

• Health Savings & Flexible Spending Accounts– HSA options with Fidelity, Healthcare FSA, Limited Purpose FSA, and Dependent Care FSA (up to $7,500) to help you save on eligible healthcare and dependent expenses.

• 401(k) Retirement Plan with Company Match– Immediate eligibility and vesting, with a company match of 100% on the first 3% and 50% on the next 3% (up to 4.5% total match).

• Life & Disability Insurance– Company-paid basic life and AD&D coverage, plus optional supplemental life insurance for employees and dependents. Short-term and long-term disability coverage helps protect your income if you’re unable to work due to illness or injury.

• Employee Assistance Program (EAP)– Confidential mental health, financial, family, and wellbeing support available at no cost to you and your household.

• Voluntary Benefits– Optional accident, hospital indemnity, critical illness, identity theft protection, pet insurance, home/auto insurance, and long-term care coverage.

• Employee Discounts & Community Support– Access to exclusive employee discounts and participation inQuanta Cares, a disaster relief fund supporting employees and families during times of need.

Equal Opportunity Employer

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, national origin or ancestry, sex (including gender, pregnancy, sexual orientation, and/or gender identity), age, disability, genetic information, veteran status, and/or any other basis protected by applicable federal, state or local law.We are an Equal Opportunity Employer, including disability and protected veteran status.We prohibit all types of discrimination and are committed to providing access and equal opportunity for individuals with disabilities. For additional information or if reasonable accommodation is needed to participate in the job application, interview, or hiring processes or to perform the essential functions of a position, please contact us the Company’s Human Resources department.

ID2026-17386

CategoryEstimating

Position TypeFull-Time Regular

LocationUS-TX-Lockhart