Senior E+ Estimator

Position: Senior E+I Estimator
SENIOR ELECTRICAL & INSTRUMENTATION ESTIMATOR 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 complex work environments. We are Powered by People
, and our people are the foundation of everything we accomplish. At ISC, Associates have opportunities to build their skills, take on meaningful challenges, and grow their careers while contributing to work they can be proud of.

THE POSITION

ISC is seeking a Senior Electrical & Instrumentation Estimator to support our Preconstruction and Corporate Estimating team. This senior-level role leads the development of complete, competitive E&I construction estimates and proposals from initial document review through final bid presentation.

The Senior Estimator evaluates plans, specifications, contracts, quantities, labor requirements, material and equipment pricing, subcontractor proposals, and project risks. The role also serves as a technical resource and mentor for estimators, preconstruction apprentices, and interns while collaborating with multidisciplinary ISC teams to develop accurate, well-supported proposals.

WHY JOIN ISC?

• Take a leadership role in developing complex electrical and instrumentation estimates and proposals.
• Work alongside experienced construction, estimating, engineering, and operations professionals.
• Help develop the next generation of ISC preconstruction and estimating talent.
• Contribute to challenging projects across a variety of industrial and complex construction environments.
• Build your skills and career with a company committed to safe, high-quality work and long-term professional development.

WHAT YOU’LL DO

• Lead estimating and proposal efforts for electrical and instrumentation construction opportunities.
• Review drawings, specifications, contracts, scope documents, and other bid information to identify project requirements, risks, and scope of supply.
• Perform and review detailed quantity takeoffs for electrical and instrumentation systems, including grounding, lighting, power, controls, cable and instrument schedules, and instrument electrical and mechanical work.
• Establish labor units, crew assumptions, material quantities, equipment requirements, and other estimate inputs.
• Develop and evaluate material and equipment pricing using supplier quotations, historical information, and current estimating data.
• Solicit, analyze, and incorporate vendor and subcontractor quotations, including evaluation of pricing, scope coverage, exclusions, and commercial terms and conditions.
• Prepare overhead and temporary requirements (OH&T) and other supporting estimate documentation.
• Participate in site visits to evaluate existing conditions, constructability considerations, logistics, and other factors affecting project cost and execution.
• Participate in bid reviews and proposal presentations, clearly communicating estimating assumptions, risks, exclusions, and pricing strategies.
• Work closely with ISC preconstruction, construction, engineering, procurement, project management, and other disciplines to develop complete and executable proposals.
• Review estimating work for accuracy, completeness, consistency, and alignment with proposal requirements.
• Mentor and provide technical guidance to estimators, Preconstruction Apprentices, and Interns.

WHAT WE’RE LOOKING FOR

• Significant electrical and instrumentation construction and estimating knowledge, with experience developing estimates for complex E&I scopes.
• Approximately 10 or more years of relevant E&I construction, preconstruction, or estimating experience appropriate for a senior estimating role.
• Bachelor’s degree in Construction Management, Electrical Engineering, or a related field preferred;…