Louth Callan
Job Title: Senior Estimator
Company: Louth Callan
Location: Hybrid
Sector: Utility-Scale Solar, BESS, Substation & Transmission
Louth Callan is a full-service power infrastructure construction firm specializing in the engineering, procurement, and construction (EPC) of utility-scale energy systems across the United States. Our expertise spans transmission and distribution infrastructure, high-voltage substations, combined heat and power (CHP), and renewable systems including solar photovoltaic (PV), battery energy storage (BESS) and geothermal assets. We deliver turnkey solutions throughout the project lifecycle from pre-construction and permitting to execution, repowering and more.
Louth Callan is seeking a Senior Estimator to join our growing team. This is an exciting opportunity to contribute to utility-scale solar PV and BESS projects nationwide, supporting our mission to build resilient and high-performing energy infrastructure.
In this role, you will:
Develop accurate and competitive technical and economic EPC proposals.
Collaborate with cross-functional teams, subcontractors, and partners throughout all stages of the preconstruction phase.
Ensure cost-effective, high-quality project outcomes that align with client needs and industry standards.
The successful candidate will become an integral part of a dynamic, expanding team, playing a key role in driving Louth Callan's continued growth and success in the U.S. energy transition.
Key Responsibilities
Estimating Phase
Review RFPs and client documents to determine project scope, schedule, and technical requirements.
Develop accurate cost estimates based on preliminary project designs.
Perform material and quantity take-offs for all electrical, mechanical, and civil scope of works.
Prepare comprehensive technical and economic proposals for utility-scale PV and BESS projects.
Coordinate with other internal departments, such as engineering, scheduling, legal, etc., for their input and validation.
Request and evaluate proposals from vendors and subcontractors, performing technical alignment and comparative analysis.
Attend coordination meetings with customers and strategic partners to clarify scope of work and present Louth Callan proposals.
Use software tools such as PVsyst, PVcase, Terabase, and Civil 3D for simulations, layouts, and performance modeling.
Preconstruction Phase
Support contract negotiations and review of technical exhibits.
Participate in the validation of final project budgets and align subcontractor scope of works accordingly.
Prepare hand-off packages and conduct estimate review sessions with the project execution team.
Construction Support
Assist project teams with clarification of estimate assumptions and response to change orders.
Provide cost history data to inform future estimates and improve accuracy.
Required Qualifications
Bachelor's degree in Engineering, Construction Management, Energy Systems, or related field.
5+ years of experience in estimating utility-scale solar PV and/or BESS projects, preferably for U.S.-based EPCs or prime contractors.
Experience in the preparation of full project estimates and proposals (including subcontract RFPs).
Proficient in technical drawing analysis and quantity take-offs.
High proficiency in Microsoft Excel, AutoCAD, Civil 3D, Heavy Bid and PVsyst. PVcase and/or Terabase are a plus.
Strong analytical, organizational, and communication skills.
What We Offer:
Competitive salary and comprehensive benefits package.
Opportunity to work with a passionate, innovative, and experienced team.
Career growth and development in a fast-growing industry focused on sustainable energy solutions.
If you meet the requirements and are motivated to take on a new professional challenge, don't hesitate to apply.