Sr. Buyer

Job Title: Sr. Buyer
Job Description
The Buyer is responsible for sourcing, purchasing, and managing materials, products, and services that support day-to-day business operations. This role works closely with suppliers, internal stakeholders, and supply chain partners to ensure that cost, quality, and delivery objectives are consistently met. The Buyer leverages ERP systems and data analysis to optimize purchasing activities, maintain accurate records, and support broader supply chain and inventory strategies.
Responsibilities

• Source and procure materials, components, and services in alignment with demand forecasts and inventory plans.
• Issue and manage purchase orders, including tracking open orders and proactively resolving delivery delays or discrepancies.
• Negotiate pricing, terms, and contracts with suppliers to optimize cost, quality, and service levels.
• Analyze market trends, supplier performance metrics, and spend data to identify cost-saving and process-improvement opportunities.
• Maintain accurate and up-to-date purchasing, pricing, and vendor records within ERP systems.
• Collaborate closely with planning, operations, finance, and quality teams to support production schedules and business objectives.
• Ensure all purchasing activities comply with company policies, procurement standards, and best practices.
• Build and maintain strong relationships with vendors to support reliable supply, issue resolution, and continuous improvement.
• Support inventory management and demand planning efforts through timely and accurate purchasing decisions.
• Use Excel and other analytical tools to create reports, track key metrics, and support data-driven decision-making.

Essential Skills

• 2-5+ years of experience in purchasing, procurement, or buying roles.
• Bachelor's degree in Supply Chain, Business, Finance, or a related field, or equivalent experience.
• Proven purchasing and procurement experience, including issuing and managing purchase orders.
• Hands-on experience working with ERP systems such as SAP, Oracle, NetSuite, D365, or similar platforms.
• Proficiency in Excel and data analysis for reporting and decision support.
• Strong negotiation skills with the ability to secure favorable pricing, terms, and service levels.
• Solid analytical and problem-solving abilities to evaluate suppliers, market trends, and spend data.
• Effective communication skills for collaborating with internal teams and managing vendor relationships.
• Ability to build rapport with vendors and internal stakeholders to support procurement objectives.
• Understanding of supply chain and procurement best practices.

Additional Skills & Qualifications

• Experience in manufacturing, distribution, or regulated environments.
• Familiarity with inventory management and demand planning concepts.
• Experience maintaining accurate purchasing and vendor records in ERP systems.
• Experience in supply chain, purchasing, or procurement within project-driven environments.
• Ability to work effectively in a fast-paced setting while managing multiple priorities.

Work Environment
This is an on-site role with a Monday through Friday schedule during standard business hours. The position operates in a professional office environment and collaborates frequently with operations, planning, finance, and quality teams. The role involves daily use of ERP systems, Excel, and other standard office technologies to manage purchasing activities and support supply chain operations. The environment offers exposure to a growing, project-oriented business with opportunities to gain hands-on experience in procurement and supply chain processes.
Job Type & Location
This is a Contract to Hire position based out of Saint Charles, MO.
Pay and Benefits
The pay range for this position is $38.00 - $41.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Saint Charles,MO.
Application Deadline
This position is anticipated to close on Jun 9, 2026.

About Aston Carter

Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® double diamond winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email View email address on click.appcast.io for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.