Buyer
GSI Service Group, Inc.
BUYER This is an in-office position (not remote) ABOUT US Diverse company with multiple lines of business worldwide Fast-paced, upbeat environment located in the heart of Boulder Many advancement and learning opportunities Company provides in-house training and is supportive of education Strong leadership with top industry professionals JOB DESCRIPTION/SUMMARY 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. DUTIES AND RESPONSIBILITIES Procurement Execution 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 Compliance & Regulatory Requirements Ensure all procurement actions comply with: Company policies and procedures FAR / DFARS Buy American Act / Buy America requirements 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 Sourcing & Vendor Management 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 Purchase Order & Contract Administration 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 PROCUREMENT SCOPE The Buyer procures 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 PROJECT TEAM INTEGRATION 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 SYSTEMS & TOOLS 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 MINIMUM QUALIFICATIONS, SKILLS, AND EDUCATIONAL REQUIREMENTS Required: 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 Skills & Competencies 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 Preferred: 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 PERFORMANCE EXPECTATIONS (First 90 Days) By Day 90: Independently manage full-cycle Purchase Order process under minimal supervision WORK ENVIRONMENT Position located in Boulder, CO (in-office presence required) Reports to Sr. Procurement Manager Occasional overtime may be required to meet deadlines This role is ideal for an early-career contracts or procurement professional ready to step into a dual-facing role supporting both field execution and corporate compliance across a diverse portfolio of federal contracts. #J-18808-Ljbffr
$85k - $115k
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$26.44 - $39.68 per hour
...Buyer Boulder Community Health, Boulder, CO 80303 $26.44 - $39.68 an hour - Per Diem Days, Various hours per week *Range includes per diem differential. Boulder Community Health is seeking a Buyer who is responsible for establishing and driving procurement...SuggestedDaily paidContract workWork at officeLocal area$61.34k - $84.34k
...Buyer I page is loaded## Buyer Ilocations: Louisville, COtime type: Full timeposted on: Posted Yesterdayjob requisition id: R25548# **Sierra Space Careers:**At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.Sierra Space...SuggestedContract workWork experience placementWork at office$93.36k - $128.37k
...Buyer III page is loaded## Buyer IIIlocations: Centennial, CO: Louisville, COtime type: Full timeposted on: Posted Todayjob requisition id: R25723# **Sierra Space Careers:**At Sierra Space, we build the missions and systems that keep our world secure in the domain above...SuggestedContract workWork experience placementWork at office$74.92k - $103.04k
...States and its allies mission-ready throughout space.We are mission-driven, and together, we are an extraordinary team.About the RoleThe Buyer II at Sierra Space leverages knowledge and skills in sourcing, procurement, and supplier management to manage and execute...Contract workWork experience placementWork at office- ...BUYER II Hyundai America Technical Center, Inc. (HATCI) is seeking a Buyer II for our Superior Township, MI facility. This position manages a variety of purchasing activities for R&D teams, including vendor communications, RFQ coordination, purchase order management, and...Contract workFor contractorsFlexible hours
$25 - $43.5 per hour
...procurement experience in the Aerospace & Defense (A&D) industry in a manufacturing or Research & Development (R&D) environment. The Buyer IIrolewill haveworkingknowledgeofFAR,DFARand/orNASAprocurementregulations,priceanalysisandtarget pricing techniques, as well as...Full timeWork at office- The University of Colorado Boulder invites applications for a Financial Service Center Coordinator within the College of Engineering and Applied Science (CEAS). The role supports unit purchases, travel authorizations, reimbursements, payroll transfers, journal entries,...
- ...would require the candidate to be a W2 employee of Donatech. US Citizenship Required. What are the main functions of this role? The Buyer will have existing procurement experience in the Aerospace and Defense (AandD) industry in a manufacturing or Research and Development...Contract workFor contractors
$32 - $38 per hour
...Buyer Location: Lafayette, CO Job ID: #72346 Pay Range: $32-38 What are the main functions of this role? The Buyer will have existing procurement experience in the Aerospace & Defense (A&D) industry in a manufacturing or Research & Development (R&D) environment. The Buyer...Contract workFor contractors$25 - $43.5 per hour
...Buyer II Blue Canyon Technologies, RTX's small satellite manufacturer and mission services provider, is solving some of the toughest challenges in space. Our components and bus platforms have completed missions ranging from very-low Earth orbits to lunar and interplanetary...Full timeWork at office- Atom Computing in Boulder is seeking a Purchasing Specialist to support worldwide system builds and lab operations by handling purchase orders for quantum tech teams. On-site in Boulder, you’ll liaise with accounting, suppliers, and internal customers to ensure timely ...Worldwide
- About Halter At Halter, we're on a mission to enable farmers and graziers to run the most productive and sustainable operations. Our customers are using Halter to break free from the time-intensive constraints of conventional practices. Imagine watching 500 cattle stand...Work at officeRemote workFlexible hours
- Customer Service Coordinator – Travel Support Job Summary We are looking for a motivated Customer Service Coordinator to provide travel support and ensure a positive client experience. This role focuses on assisting customers with travel-related questions, coordinating...Full timePart timeRemote workFlexible hours
- About the Role We are seeking a motivated and detail-oriented Customer Service Travel Coordinator to join our growing team. In this role, you will assist clients with planning and booking travel experiences while delivering exceptional customer service from start ...Remote workFlexible hours
$17.82 - $18.32 per hour
Marshalls At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You’ll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you’re working in our four global Home ...Hourly payTemporary workPart timeLocal areaHome officeFlexible hoursNight shift- Benjamin West in Louisville, CO is seeking an entry-level Project Coordinator to provide support to internal and external teams on FF&E procurement for hospitality projects, including quotes, purchase orders, and budgeting. You will track vendor status, assist with bid...
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$17.82 - $18.32 per hour
Marshalls At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You’ll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you’re working in our four global Home Offices...Hourly payTemporary workPart timeLocal areaHome officeFlexible hoursNight shift$56k - $70k
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Description Description Izzio Artisan Bakery is a the #1 selling sourdough bread in America. Our bakery is focused on providing our customers with great breads created using traditional methods and the best possible ingredients. Our people are a major part of our process...Work at officeFlexible hours$26 - $29 per hour
Production Control Coordinator Excelitas is a global technology leader with more than 7,500 employees, focused on delivering market‑driven solutions in illumination, optical, detection, and imaging across biomedical, semiconductor, industrial, consumer, scientific, security...Hourly payTemporary workWork at office$60k - $75k
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Job Title When you're part of the team at Thermo Fisher Scientific, you'll do important work. And you'll have the opportunity for continual growth and learning in a culture that empowers your development. With revenues of more than $40 billion and the largest investment...Hourly payTemporary workWork at officeMonday to FridayShift work$20.8 - $23 per hour
This job is with Thermo Fisher Scientific, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Work Schedule First Shift (Days) Environmental Conditions ...Hourly payTemporary workWork at officeMonday to FridayShift workDay shift- Benefits Information This job posting is anticipated to remain open until July 3rd, 2026. We are hiring with increased wages. Full-time employees will enjoy a competitive benefits package with options for you and your family including: Paid Time Off Paid Holidays 401(k...Full timeFlexible hours
$12.32 per hour
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