Buyer

GSI Service Group, Inc. • Boulder, CO

1d • Onsite

About The Position

The Buyer is responsible for executing medium- to high-volume procurement activities in support of Construction, Environmental, UXO/MEC, Professional, and IT Services projects. This role performs the full lifecycle of purchasing actions, including the issuance and administration of Purchase Orders (POs) and Change Orders (COs), expediting, and ensuring compliance with applicable regulations including FAR/DFARS, DPAS, and Buy American Act requirements. The Buyer works closely with the assigned Subcontract Administrator and Project Teams to ensure timely, compliant, and cost-effective acquisition of goods and services in a fast-paced, deadline-driven environment. This is a professional position supporting both internal teams and external stakeholders, with a strong focus on Federal Government procurement. This role reports to the Procurement Manager or his designee and interfaces regularly with Project Managers, Division Leads, and Accounting/Finance personnel.

Requirements

• Reading Comprehension – Ability to carefully review, interpret, and follow written instructions, contract documents, and technical material.
• Microsoft Office Proficiency – Basic to intermediate ability with Word, Excel, Outlook, and PowerPoint for document drafting, spreadsheets, and communications.
• Communication Skills – Strong verbal and written communication; able to interact professionally with colleagues, managers, and external partners.
• Work Ethic & Mindset – Demonstrated reliability, willingness to learn, and the ability to stay focused on tasks in a deadline-driven environment.
• 3–5+ years of experience in procurement or purchasing (federal, state, local, or private sector)
• Experience in mid to high-volume PO environments
• Working knowledge of FAR / DFARS
• Experience in issuing and administering POs and COs
• Ability to manage multiple procurements under tight deadlines
• Strong attention to detail and compliance mindset
• Excellent communication and coordination skills
• Strong analytical and problem-solving abilities

Nice To Haves

• Familiarity with SBA 8(a), UCC, USACE/NAVFAC-type contracting
• Solid understanding of procurement file documentation and compliance auditing
• Preferred experience supporting DoD or federal prime contracts
• Strong written/verbal communication and negotiation skills
• Prior experience with construction or environmental contracting
• Working knowledge of professional services agreements and service procurements
• NCMA/ISM/NIGP certification
• Degree preferred but not required

Responsibilities

• Execute a medium to high volume of procurement actions across multiple projects
• Issue, manage, and close out Purchase Orders (POs) and Change Orders (COs)
• Review and validate purchase requisitions, funding, and supporting documentation
• Ensure timely processing to meet project schedules and deadlines
• Perform expediting activities to ensure on-time delivery of materials and services
• Ensure all procurement actions comply with company policies and procedures, FAR/DFARS, Buy American Act/Buy America requirements, and DPAS (as applicable)
• Perform price analysis, commercial item determinations, and source justification (as required)
• Maintain procurement files to support audit readiness and CPSR compliance
• Conduct vendor responsibility determinations in accordance with FAR
• Support sourcing activities including RFQs and competitive procurements
• Evaluate bids and proposals for compliance, pricing, and technical requirements
• Prepare bid tabulations and award recommendations
• Assist in identifying and prequalifying suppliers
• Negotiate pricing, delivery terms, and conditions
• Monitor vendor performance and resolve delivery or invoicing issues
• Maintain strong vendor relationships
• Draft, issue, and administer Purchase Orders, Change Orders, Service and consulting agreements
• Track PO status, funding, modifications, and closeout
• Ensure compliance with insurance, bonding, and contractual requirements
• Procure a wide range of materials, equipment, rentals, and services in support of field operations, including but not limited to: Construction materials (aggregate, asphalt, concrete, wood, steel, roofing, etc.), Electrical, HVAC, and plumbing materials and equipment, Equipment and tool purchase/rentals (including test equipment), Temporary facilities and site support (fencing, scaffolding, office/storage units), Laboratory testing services and supplies, Industrial consumables (fasteners, abrasives, blades, etc.), Safety equipment and PPE, General materials and hardware.
• Work closely with assigned Subcontract Administrator(s)
• Partner with Project Managers to support procurement planning and execution
• Participate in project meetings and provide procurement status updates
• Support project buyout and ongoing procurement efforts
• Utilize Kahua for procurement tracking and PO/CO management
• Prepare and maintain documentation using Kahua, Microsoft Word, Excel, Outlook, and Teams
• Maintain organized and auditable procurement files

Benefits

• In-house training
• Supportive of education
• Advancement and learning opportunities

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: No Education Listed