Senior Estimator, Solar at Clayco in St Louis, MO | Kablio

Role

Description

quantity takeoff

bid evaluation

historical data

proposal prep

constructability review

value engineering

As a Senior Estimator, Solar, you will drive the bidding process for construction projects by crafting precise conceptual and lump sum estimates, developing proposals, and managing subcontractor bids. You will ensure the accuracy and completeness of all project documents, perform quantity take-offs, conduct constructability reviews, and implement value engineering analyses. Your contributions will be crucial in shaping departmental strategies and fostering continuous improvement.

Subcontractor Management: Oversee the solicitation process for subcontractor bids, build and nurture relationships with subcontractors, and maintain a comprehensive master list of subcontractors/vendors.
Schedule and Conditions Review: Evaluate project schedules, assist in drafting General Conditions, and contribute to the final assembly of estimates for presentation to owners.
Proposal Preparation: Collaborate with the Preconstruction team to deliver accurate proposals across various business units, including Solar, Battery Storage, and Renewables sectors.
Quantity Take-Offs: Perform detailed quantity take-offs for specific scopes of work to support accurate estimating.
Handoff and Support: Facilitate a seamless transition of estimates, bid information, drawings, and specifications to Project Management, and assist Project Managers with contract negotiations, change orders, and other project needs.
Historical Data Management: Develop and maintain historical data on unit prices and productivities to inform future estimating and bidding processes.
Bid Evaluation: Prepare and analyze Bid Evaluation sheets to ensure competitive and fair bidding processes.

Requirements

estimating

solar

analytical

bachelors

microsoft office

quantity takeoff

Experience: 3–5 years of estimating experience in solar or battery storage construction, with a strong track record in project bidding and management.
Analytical Skills: Strong conceptual abilities with a knack for working with limited information, and proven technical skills in mathematical calculations.
Meeting Experience: Experience participating in Preconstruction meetings and collaborating with cross-functional teams.
Education: Bachelor’s Degree in Construction Management, Civil Engineering, Electrical Engineering, Mechanical Engineering, or a related field.
Software Proficiency: Skilled in Microsoft Office Suite.
Technical Skills: Deep understanding of building construction, materials, systems, and market conditions. Proficiency in estimating and quantity takeoff software.

Benefits

Discretionary Annual Bonus: Subject to company and individual performance.
Comprehensive Benefits Package Including: Medical, dental, and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs, and more.
2024 Best Places to Work – Crain’s Chicago Business, St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

$7.6B Revenue

Revenue Achievement

Generated over $7.6 billion in revenue in 2024 with extensive project work across multiple sectors.

394M sq ft

Built Space

Over 394 million square feet of built and renovated space across numerous projects.

Founded in 1984 by Bob Clark in St. Louis, the company grew rapidly with integrated design‑build services.
Moved headquarters to Chicago in 2013, expanding reach across North America.
Launched Clayco Compute in 2025, focusing on mission‑critical data center construction with 57 active projects.
Specializes in Commercial, Industrial, Institutional, Residential & Hospitality, Life Sciences, Data Center and Manufacturing sectors.
Typical projects include large‑scale data centers, life sciences facilities, manufacturing plants and hospitality developments.
Known for pioneering fast‑track, tech‑enabled design‑build methods—using BIM, drones and modular solutions.
Integrated subsidiaries cover architecture (Lamar Johnson Collaborative), concrete (Concrete Strategies), and façade systems (Ventana).
Handles end‑to‑end delivery—from site acquisition and financing through design, engineering and self‑performed construction.
Stands out for fully integrated project delivery, overlapping design and build phases to boost efficiency and innovation.

Culture + Values

Treat others as they would want to be treated.
Employ the best and brightest in the industry and embrace their passion, creativity, and ideas, while providing them with the latest technology.
Forge real partnerships with suppliers and subcontractors through better project management and fair bidding practices.
Adhere to a zero-tolerance hard-hat policy and implement industry-leading safety practices.
Think of the communities where projects are built as their own, focusing on enhancing them through sustainability practices and programs that give back.
Create and innovate by balancing art and science holistically and intelligently.
Tear down obstacles, outdated methods, and outdated thinking, replacing them with new ideas and transformational solutions.
See work through the eyes of the people who will use it every day.
Build powerful structures with impacts that reach far beyond the walls.

Environment + Sustainability

42%

Scope 1 & 2 Reduction Target

Targeting a 42% reduction in absolute Scope 1 and 2 emissions by 2030 compared to the 2021 baseline.

51.6%

Scope 3 Per SF Reduction

Aiming to reduce Scope 3 emissions from purchased goods and sold products by 51.6% per square foot by 2030.

95+

LEED-Certified Projects

Over 95 projects have been certified under the LEED program, showcasing commitment to sustainable design and construction.

4.85M tCO₂e

2023 Scope 3 Emissions

Reported Scope 3 emissions in 2023 amount to 4,852,977 metric tons of CO₂ equivalent.

Pledged to SBTi Net‑Zero Standard, targeting net‑zero GHG emissions.
2023 reported emissions: Scope 1 14,487 tCO₂e; Scope 2 3,691 tCO₂e.
VP of Sustainability hired to oversee holistic emissions reduction strategy and sustainable training.
Pillars: energy & carbon, water & ecology, circular economy, wellbeing, innovation; 2023 progress on Scope 1 & 2 reduction and Scope 3 target‑setting.

Inclusion & Diversity

Over 360 Subcontractors

Diverse subcontractor network

Clayco maintains a network of over 360 prequalified minority- and women-owned (MBE/WBE) and other diverse subcontractors in 2023, reflecting a strong commitment to inclusive business practices.

275 Women Employees

Women's professional development

Clayco supports approximately 275 women employees through programs like ClaycoNOW, which focuses on networking, career development, and leadership empowerment.

20% DBE Goal Exceeded

Diverse business participation

Clayco achieved a 20% DBE (Disadvantaged Business Enterprise) goal on projects like Penn State East Halls Phase 2C, surpassing the required 15% target.

9% Construction Workforce

Women in construction

Reflecting broader industry trends, women make up just 9% of the U.S. construction workforce, but Clayco is committed to fostering equal opportunity through its inclusive culture.

A program breaking barriers of race, income, and gender for employees, MBE/WBE partners, and communities.
Active participation in workforce development through partnerships with organizations like CCDI, NSBE, NOMA, and the NAACP, along with internal initiatives like PIVOT and Clayco Connects.

Articles

Recent Graduates and Young Professionals

Interns

A New Era at Clayco: Welcoming New Leadership & Business Unit

Celebrating International Women’s Day with Clayco (NOW)

Clayco to expand in St. Louis, investing $50 million and creating 400 new jobs

Role

Description

quantity takeoff

bid evaluation

historical data

proposal prep

constructability review

value engineering

Subcontractor Management: Oversee the solicitation process for subcontractor bids, build and nurture relationships with subcontractors, and maintain a comprehensive master list of subcontractors/vendors.
Schedule and Conditions Review: Evaluate project schedules, assist in drafting General Conditions, and contribute to the final assembly of estimates for presentation to owners.
Proposal Preparation: Collaborate with the Preconstruction team to deliver accurate proposals across various business units, including Solar, Battery Storage, and Renewables sectors.
Quantity Take-Offs: Perform detailed quantity take-offs for specific scopes of work to support accurate estimating.
Handoff and Support: Facilitate a seamless transition of estimates, bid information, drawings, and specifications to Project Management, and assist Project Managers with contract negotiations, change orders, and other project needs.
Historical Data Management: Develop and maintain historical data on unit prices and productivities to inform future estimating and bidding processes.
Bid Evaluation: Prepare and analyze Bid Evaluation sheets to ensure competitive and fair bidding processes.

Requirements

estimating

solar

analytical

bachelors

microsoft office

quantity takeoff

Experience: 3–5 years of estimating experience in solar or battery storage construction, with a strong track record in project bidding and management.
Analytical Skills: Strong conceptual abilities with a knack for working with limited information, and proven technical skills in mathematical calculations.
Meeting Experience: Experience participating in Preconstruction meetings and collaborating with cross-functional teams.
Education: Bachelor’s Degree in Construction Management, Civil Engineering, Electrical Engineering, Mechanical Engineering, or a related field.
Software Proficiency: Skilled in Microsoft Office Suite.
Technical Skills: Deep understanding of building construction, materials, systems, and market conditions. Proficiency in estimating and quantity takeoff software.

Benefits

Discretionary Annual Bonus: Subject to company and individual performance.
Comprehensive Benefits Package Including: Medical, dental, and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs, and more.
2024 Best Places to Work – Crain’s Chicago Business, St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

$7.6B Revenue

Revenue Achievement

Generated over $7.6 billion in revenue in 2024 with extensive project work across multiple sectors.

394M sq ft

Built Space

Over 394 million square feet of built and renovated space across numerous projects.

Founded in 1984 by Bob Clark in St. Louis, the company grew rapidly with integrated design‑build services.
Moved headquarters to Chicago in 2013, expanding reach across North America.
Launched Clayco Compute in 2025, focusing on mission‑critical data center construction with 57 active projects.
Specializes in Commercial, Industrial, Institutional, Residential & Hospitality, Life Sciences, Data Center and Manufacturing sectors.
Typical projects include large‑scale data centers, life sciences facilities, manufacturing plants and hospitality developments.
Known for pioneering fast‑track, tech‑enabled design‑build methods—using BIM, drones and modular solutions.
Integrated subsidiaries cover architecture (Lamar Johnson Collaborative), concrete (Concrete Strategies), and façade systems (Ventana).
Handles end‑to‑end delivery—from site acquisition and financing through design, engineering and self‑performed construction.
Stands out for fully integrated project delivery, overlapping design and build phases to boost efficiency and innovation.

Culture + Values

Treat others as they would want to be treated.
Employ the best and brightest in the industry and embrace their passion, creativity, and ideas, while providing them with the latest technology.
Forge real partnerships with suppliers and subcontractors through better project management and fair bidding practices.
Adhere to a zero-tolerance hard-hat policy and implement industry-leading safety practices.
Think of the communities where projects are built as their own, focusing on enhancing them through sustainability practices and programs that give back.
Create and innovate by balancing art and science holistically and intelligently.
Tear down obstacles, outdated methods, and outdated thinking, replacing them with new ideas and transformational solutions.
See work through the eyes of the people who will use it every day.
Build powerful structures with impacts that reach far beyond the walls.

Environment + Sustainability

42%

Scope 1 & 2 Reduction Target

Targeting a 42% reduction in absolute Scope 1 and 2 emissions by 2030 compared to the 2021 baseline.

51.6%

Scope 3 Per SF Reduction

Aiming to reduce Scope 3 emissions from purchased goods and sold products by 51.6% per square foot by 2030.

95+

LEED-Certified Projects

Over 95 projects have been certified under the LEED program, showcasing commitment to sustainable design and construction.

4.85M tCO₂e

2023 Scope 3 Emissions

Reported Scope 3 emissions in 2023 amount to 4,852,977 metric tons of CO₂ equivalent.

Pledged to SBTi Net‑Zero Standard, targeting net‑zero GHG emissions.
2023 reported emissions: Scope 1 14,487 tCO₂e; Scope 2 3,691 tCO₂e.
VP of Sustainability hired to oversee holistic emissions reduction strategy and sustainable training.
Pillars: energy & carbon, water & ecology, circular economy, wellbeing, innovation; 2023 progress on Scope 1 & 2 reduction and Scope 3 target‑setting.

Inclusion & Diversity

Over 360 Subcontractors

Diverse subcontractor network

Clayco maintains a network of over 360 prequalified minority- and women-owned (MBE/WBE) and other diverse subcontractors in 2023, reflecting a strong commitment to inclusive business practices.

275 Women Employees

Women's professional development

Clayco supports approximately 275 women employees through programs like ClaycoNOW, which focuses on networking, career development, and leadership empowerment.

20% DBE Goal Exceeded

Diverse business participation

Clayco achieved a 20% DBE (Disadvantaged Business Enterprise) goal on projects like Penn State East Halls Phase 2C, surpassing the required 15% target.

9% Construction Workforce

Women in construction

Reflecting broader industry trends, women make up just 9% of the U.S. construction workforce, but Clayco is committed to fostering equal opportunity through its inclusive culture.

A program breaking barriers of race, income, and gender for employees, MBE/WBE partners, and communities.
Active participation in workforce development through partnerships with organizations like CCDI, NSBE, NOMA, and the NAACP, along with internal initiatives like PIVOT and Clayco Connects.

Articles

Recent Graduates and Young Professionals

Interns

A New Era at Clayco: Welcoming New Leadership & Business Unit

Celebrating International Women’s Day with Clayco (NOW)

Clayco to expand in St. Louis, investing $50 million and creating 400 new jobs