Senior Buyer

Job Title: Buyer
Job Description
This role focuses on purchasing with some planning responsibilities, including forecasting for both short-term (3-60-90 days) and long-term (2-3 years) to support product launches in the US and Japan. You will work closely with the sourcing department to communicate forecasts and demand schedules, ensuring suppliers are prepared with necessary parts. Heavy use of ERP systems and Excel is required, with the ability to create planning schedules independently.
Responsibilities

• Strategically manage inventory to balance supply with forecasted and actual demand.
• Lead procurement activities, ensuring compliance with internal controls and purchasing policies.
• Develop and execute purchasing plans to support production schedules.
• Monitor and evaluate supplier performance and initiate corrective actions as needed.
• Collaborate with various teams to support new product introductions and engineering changes.
• Resolve invoice and receiving discrepancies by coordinating with Accounting and Receiving teams.
• Support supplier onboarding and qualification, maintaining the Approved Supplier List (ASL).
• Ensure compliance with Good Manufacturing Practices (GMP) and regulatory requirements.
• Engage in indirect purchasing, especially during construction of additional production lines.
• Work with standard and custom products for clinical trials.

Essential Skills

• 4+ years of experience in purchasing and planning.
• Experience in the medical device industry, ideally class 3, but open to other classes.
• Proficiency in ERP systems, such as JDE, Oracle, or SAP.
• Advanced Excel skills, including pivot tables and vlookups; macros and formulas are a plus.
• Ability to create custom planning and purchasing schedules using Excel.

Additional Skills & Qualifications

• Experience with smaller components and multi-level BOMs.
• Comfortable with 100+ line item purchase orders.
• Ability to walk production floors and clean rooms, with appropriate attire (bunny suit).
• Experience with long-term forecasting and planning (90+ days to 2-3 years).
• Knowledge of Accounts Payable processes.

Work Environment
This position is located onsite in Irvine, at a rapidly growing class 3 medical device manufacturer. The company produces balloon catheters and is expanding its operations with plans to launch in the US and Japan. The work environment includes a clean room and production floor, with a laid-back dress code of jeans and t-shirts. Working hours are from 7:30 am to 4:00 pm, with occasional overtime and Saturday work required. The team is dynamic and flexible, adapting quickly to new product launches.
Job Type & Location
This is a Contract to Hire position based out of Irvine, CA.
Pay and Benefits
The pay range for this position is $40.00 - $45.00/hr.
Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.
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 Irvine,CA.
Application Deadline
This position is anticipated to close on Oct 2, 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® Platinum Award 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.