Electrical + Instrumentation Estimator | Preconstruction

ISC Constructors, LLC; Corpus Christi (TX); On-site; USD 80,000 - 115,000; Full time

Benefits offered by this job

Professional development

Career-growth opportunities

Exposure to complex projects

Collaborative team environment

Job summary

ISC Constructors, LLC is seeking an Electrical & Instrumentation Estimator to join the Preconstruction team in Corpus Christi, TX. You will develop competitive estimates for industrial projects, perform quantity takeoffs, and coordinate with procurement, vendors, and subcontractors to finalize bid packages.

The role offers growth in estimating and preconstruction with exposure to complex industrial work, providing opportunities to advance technical proposal development and risk assessment.

Qualifications

• Experience or education related to electrical and instrumentation construction, estimating, engineering, project coordination, or preconstruction.
• Working knowledge of E&I construction methods, materials, equipment, and installation practices.
• Ability to read and interpret construction drawings, specifications, scopes of work, and project documentation.
• Strong analytical, mathematical, and problem-solving skills.

Responsibilities

• Prepare electrical and instrumentation estimates for industrial construction projects.
• Review drawings, specifications, bid documents, schedules, and other project requirements.
• Perform detailed quantity and material takeoffs for E&I scopes.
• Develop labor estimates and apply appropriate labor units and productivity considerations.
• Obtain and evaluate material pricing, vendor quotations, and subcontractor proposals.
• Prepare estimates for electrical scopes including grounding, lighting, power, controls, cable, and specialty electrical systems.
• Prepare estimates for instrumentation scopes including instrumentation, controls, cable and instrument schedules, and associated installation requirements.
• Assist with scope reviews, bid clarifications, contract reviews, and identification of project risks and opportunities.
• Support preparation of competitive bids, technical proposals, proposal letters, and supporting documentation.
• Participate in estimate reviews, bid reviews, and proposal presentations.

Skills

Electrical estimation

Estimating

Preconstruction

Project coordination

Analytical thinking

Education

Construction/Engineering education

Tools

Vista by Viewpoint

Microsoft Excel

Microsoft Word

Job description

ELECTRICAL & INSTRUMENTATION ESTIMATOR | PRECONSTRUCTION

WHO WE ARE

For over 35 years, ISC has delivered safe, high-quality engineering, construction, and maintenance solutions across a wide range of industries and markets throughout the United States. Our work spans industrial, manufacturing, and mission-critical environments, where our teams bring the expertise, craftsmanship, and commitment needed to execute complex projects safely and successfully.

THE POSITION

ISC is seeking an Electrical & Instrumentation (E&I) Estimator to join our Preconstruction team and support the development of competitive estimates and proposals for industrial construction projects.

This position is ideal for someone with E&I construction knowledge who wants to grow within estimating and preconstruction. Working alongside experienced estimators and project professionals, this role develops expertise in quantity takeoffs, labor estimating, material pricing, vendor and subcontractor quotations, bid reviews, scope evaluation, risk assessment, and technical proposal development.

WHY JOIN ISC?

• Professional development and career-growth opportunities
• Opportunity to build expertise in industrial E&I estimating and preconstruction
• Exposure to complex projects from early planning through award and execution
• Collaborative environment working with experienced estimators, operations, and project teams

WHAT YOU'LL DO

• Prepare electrical and instrumentation estimates for industrial construction projects.
• Review drawings, specifications, bid documents, schedules, and other project requirements.
• Perform detailed quantity and material takeoffs for E&I scopes.
• Develop labor estimates and apply appropriate labor units and productivity considerations.
• Obtain and evaluate material pricing, vendor quotations, and subcontractor proposals.
• Prepare estimates for electrical scopes including grounding, lighting, power, controls, cable, and specialty electrical systems.
• Prepare estimates for instrumentation scopes including instrumentation, controls, cable and instrument schedules, and associated installation requirements.
• Assist with scope reviews, bid clarifications, contract reviews, and identification of project risks and opportunities.
• Support preparation of competitive bids, technical proposals, proposal letters, and supporting documentation.
• Participate in estimate reviews, bid reviews, and proposal presentations.
• Coordinate with operations, engineering, procurement, vendors, subcontractors, and other stakeholders during estimate development.
• Participate in project site visits and pre-bid activities as required.
• Maintain accurate estimating documentation, assumptions, qualifications, and supporting information.
• Develop toward increased responsibility for proposal development and estimate leadership.

WHAT WE'RE LOOKING FOR

• Experience or education related to electrical and instrumentation construction, estimating, engineering, project coordination, or preconstruction.
• Working knowledge of E&I construction methods, materials, equipment, and installation practices.
• Ability to read and interpret construction drawings, specifications, scopes of work, and project documentation.
• Strong analytical, mathematical, and problem-solving skills.
• Strong attention to detail and commitment to estimate accuracy.
• Proficiency with Microsoft Excel and Word.
• Ability to learn and effectively use construction estimating and project-management software.
• Strong written and verbal communication skills.
• Ability to work effectively with multidisciplinary project teams.
• Self-motivated approach with a desire to grow within industrial construction estimating and preconstruction.

PREFERRED EXPERIENCE

• Electrical or E&I estimating
• Industrial electrical and instrumentation construction
• Quantity and material takeoffs
• Labor and cost estimating
• Vendor and subcontractor pricing
• Bid and scope reviews
• Vista by Viewpoint
• Project engineering or project coordination
• Construction, engineering, estimating, or related technical education

EMPLOYMENT REQUIREMENTS

• Ability to participate in project and pre-bid site visits as required.
• Ability to comply with applicable project, client, and site requirements.
• Additional training or qualifications may be required based on assigned responsibilities.
• Ability to successfully complete applicable post-offer, pre-employment requirements.
• Ability to perform the essential functions of the position with or without reasonable accommodation.

OTHER INFORMATION

ISC offers a comprehensive benefits package and opportunities for career development and advancement.

EQUAL EMPLOYMENT OPPORTUNITY

ISC is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by applicable law.

RECRUITING INTEGRITY

ISC evaluates and hires applicants for employment based exclusively upon each applicant's qualifications and merit. No applicant will ever be required to pay money or provide any other form of compensation to an ISC employee in order to be hired by or considered for employment with the Company.

MULTI-SKILL EXPECTATION

This job profile is not intended to be a complete listing of all similar, miscellaneous, or incidental duties that may be required. ISC utilizes the multi-skill concept, and Associates may be expected to perform other job-related duties consistent with project and operational requirements.

Accessibility: If you need an accommodation as part of the employment process please contact Human Resources at
Phone: [phone]
Email: [e-mail]
Equal Opportunity Employer, including disabled and veterans.