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Buyer III, Material Planning

Mercury Systems
tuition reimbursement
United States, New Hampshire, Hudson
267 Lowell Road (Show on map)
Sep 23, 2026

Job Summary:

A Buyer III is to negotiateand place custom mechanical related orderswith manufacturers, suppliersor service providers of goods and servicesper MRP and CPSR requirements. To continually strive for best cost and most economical ways to meet requirements.To then manage open orders whether it be expediting to meet changing requirements, monitoring on time delivery and any supplier or material issues that arise. All the above, as it relates to the Aerospace/Defense Industry.

Job Responsibilities:



  • Obtain quotes; negotiate with suppliers, source items with suppliers per MRP and CPSR requirements.
  • Purchasing of custom mechanical goods, materials, and services to meet company operational needs.
  • Considering: price, quality and delivery and ensuring continuity of supply.
  • Documenting, order placement, order maintenance, resolution of invoice issues and order follow up.
  • Procurement activity is high dollar value and high impact to business needs. Complex requirements requiring negotiations.
  • Procurement knowledge of custom mechanical material per print.
  • Meet departmental key performances indicators and weekly standard of work with cost saving, supplier management, on time delivery and inventory management. As well as expediting critical shortages.
  • Develop and maintain consistent and effective communication with vendors.
  • Multi-task and problem solve for resolution of discrepancies between invoices and purchase orders.
  • Provide support for documentation of returned materialbetween quality and suppliers.
  • Support internal stakeholders while achieving maximum cost effectiveness.
  • Responsibility for a specific product and/or range of services across varied commodities and end uses.
  • Close interaction with Planning, Engineering, Production, Accounts Payable, Quality Management, Business Development and leadership across the corporation.
  • Demonstrate the ability to think strategically, work independently as well as a team and critically analyze details.
  • Supplier engagement early in the development phase and ensuring all cost targets are met.
  • Communications with Program Management and leadership are expected.


Required Qualifications:



  • Minimum High School Diploma or equivalent.
  • Typically requires 4+ years of hands-on experience purchasingor planning custom mechanical goods.
  • ERP/MRP Experience.
  • Familiar with government contract purchasing (CPSR) and understanding of DFARSand FARflow downs.
  • Ability to multi-task and work in a flexible, changing, and fast-paced environment with multiple competing deadlines.
  • Effective communication and collaboration skills with Engineering, Planning, Production, and Quality teams.
  • Strong Microsoft Office skills.


Preferred Qualifications:



  • Technical knowledge of Procurement/Sourcing.
  • Experience in defense industry.
  • Experience with Oracle.


"This position requires you to access information that is subject to U.S. export regulations. You may only access such information if you are a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. government."

Why should you join Mercury Systems?

Mercury Systems is a technology company that makes the world a safer, more secure place. We push processing power to the tactical edge, making the latest commercial technologies profoundly more accessible for today's most challenging aerospace and defense missions. From silicon to system scale, Mercury enables customers to accelerate innovation and turn data into decision superiority. Headquartered in Andover, Massachusetts, Mercury employs more than 2,300 people in 24 locations worldwide. To learn more, visit mrcy.com

Our Culture

We are committed to making Mercury a great place to work, no matter where our employees are located. We offer a casual and enjoyable atmosphere that allows employees to learn and grow. We help and care for one another and work as one to achieve results for us and for our customers. We value communication and transparency, and strive to foster two-way dialogue at all levels of the organization. We are committed to lifelong learning, offering comprehensive skills training and tuition reimbursement. Whether you're just starting out on your career journey or you are an experienced professional, it's important to us that you feel recognized and rewarded for your contributions.

To find out more aboutWhy Mercury?, or visit the Mercury Community or find answers to general questions at Mercury FAQs

Mercury Systems is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex (including pregnancy), sexual orientation, gender identity, national origin, genetic information, creed, citizenship, disability, protected veteran or marital status.

As an equal opportunity employer, Mercury Systems is committed to a diverse workforce. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Veterans' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants that require accommodation in the job application process may contact the number below for assistance.

(978) 256-1300

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