Mechanical Construction Project Buyer

Since 1996, RQC, LLC has been a leading force in Southern California's thriving commercial and governmental Design-Build industry. We've expanded our reach nationally and internationally, with projects spanning from coast to coast and into the Caribbean.

As a full-service Design-Build company, we manage high-quality, fast-track construction projects for public and private clients-specializing in the Department of Defense (DoD) sector. Our culture is rooted in collaboration, innovation, and delivering excellence in every project we take on.

Position Overview

We're seeking an experienced Construction Project Buyer (Mechanical) to join our Mechanical Self-Perform Team in Carlsbad, California. In this critical role, you'll support construction and engineering projects by ensuring the timely, compliant, and cost-effective procurement of mechanical equipment, materials, and services.

You'll act as the key liaison between project teams, suppliers, and subcontractors-negotiating pricing, managing vendor performance, and ensuring purchases align with project schedules and federal procurement requirements. Mechanical purchasing experience for government projects is ideal.

PAY: $85, ,000 per year; DOE

BENEFITS: Medical, Dental, Vision, 401(K) with Match

• Manage the full procurement lifecycle for mechanical materials, parts, and systems-from requisition to contract closeout.
• Source, evaluate, and negotiate with vendors while ensuring compliance with FAR/DFARS and company policies.
• Prepare and issue RFQs, RFPs, and Purchase Orders aligned with government contracting requirements.
• Conduct cost and price analyses, developing supplier strategies that drive savings while maintaining quality and technical compliance.
• Collaborate with estimating, engineering, project management, and construction teams to forecast demand and align procurement strategies with project schedules.
• Maintain accurate procurement records for audits, internal reviews, and government reporting.
• Build and maintain strong supplier and subcontractor relationships to ensure reliability and performance.
• Monitor market trends and recommend cost-saving or value-engineering opportunities.
• Support continuous improvement initiatives within the Mechanical department and across the company.

• Bachelor's degree in Business Administration, Supply Chain, Construction Management, or related field (or equivalent combination of education and experience).
• 5–7 years of purchasing/procurement experience (construction industry experience strongly preferred).
• Experience with federal government contracting is highly desirable.
• Proficient in Microsoft Office 365 and experienced with procurement software (Oracle Procurement preferred).
• Strong negotiation, communication, and analytical skills.
• Ability to thrive in a fast-paced, deadline-driven, and team-oriented environment.

• Be part of a trusted Design-Build leader with a strong presence in both domestic and international markets.
• Work on innovative, high-impact projects for public and private sector clients.
• Enjoy a collaborative, values-driven culture focused on growth, quality, and excellence.
• Competitive compensation and benefits package.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, creed, gender (including gender identity and gender expression), religion (all aspects of religious beliefs, observance or practice, including religious dress or grooming practices) marital status, registered domestic partner status, age, national origin or ancestry, physical or mental disability, medical condition (including cancer or a record or history of cancer, and genetic characteristics), sex (including pregnancy, childbirth, breastfeeding or related medical condition), genetic information, sexual orientation, veteran status, or any other basis or status protected by federal, state, or local law or ordinance or regulation.