Senior Buyer

Job Title: Sr. Buyer

Department: Purchasing

Reports To: Purchasing Manager

Position Summary
The Senior Buyer supports production continuity by executing direct-material purchasing requirements in a fast-paced aerospace and defense manufacturing environment. This hands-on position converts material demand into accurate purchase orders, monitors supplier commitments, expedites critical materials, resolves shortages and delivery issues, and supports supplier performance and purchasing compliance. The role works closely with planning, manufacturing, engineering, quality, and strategic sourcing to keep materials available and production moving. The position is primarily focused on purchasing execution rather than independent strategic sourcing or ownership of complex commercial negotiations.

Key Responsibilities
Purchasing Execution & Production Support
• Execute purchase orders and blanket purchase orders against approved requirements; maintain accurate order data, pricing, lead times, delivery schedules, and terms and conditions.
• Interpret ERP/MRP demand signals, track supplier acknowledgments, manage exceptions, and proactively expedite or reschedule materials to prevent production disruption.
• Resolve shortages, supplier pushouts, discrepancies, and material availability concerns through timely cross-functional coordination and data-driven problem-solving.
• Purchase direct materials to engineering specifications and drawings; communicate applicable quality codes, technical requirements, and customer flow-down requirements to suppliers.
• Maintain complete and accurate procurement documentation in accordance with purchasing policies and applicable government-contract requirements.

Supplier Performance & Coordination
• Monitor supplier scorecards, on-time delivery, risks, and corrective actions; coordinate recovery plans and follow through on commitments.
• Support supplier onboarding, qualification, transitions, and basic capability assessments in partnership with appropriate stakeholders.
• Plan and facilitate supplier meetings and business reviews, including agendas, appropriate participants, action logs, and follow-up.
• Facilitate discussions concerning pricing, payment terms, delivery schedules, and commercial terms, escalating complex negotiations and approval decisions to management or strategic sourcing.
• Identify potential supplier and material lifecycle risks, including obsolescence, and recommend practical mitigation actions.

Operational Excellence & Collaboration
• Analyze purchasing and supplier data using Excel and ERP/MRP reporting to identify root causes, evaluate alternatives, and support fact-based decisions.
• Coordinate with planning, production, engineering, quality, and other teams to resolve changing priorities and meet customer requirements.
• Participate in continuous improvement and standard-work activities using Lean, Six Sigma, or Ralliant Business Systems principles as applicable.
• Support cross-training and onboarding of other buyers as experience develops; this is an individual-contributor role with no direct reports.
• Manage assigned commodities and adapt to changing commodity assignments and business priorities as needed.

Required Qualifications
• At least three years of purchasing experience supporting manufacturing or production, including direct-material procurement and purchase-order execution.
• At least three years of experience working in an ERP/MRP purchasing environment; no particular platform is required.
• Working knowledge of purchase-order terms, payment terms, delivery schedules, supplier follow-up, and purchasing documentation.
• Experience managing supplier delivery issues, material shortages, and competing production priorities.
• Ability to interpret technical specifications and engineering drawings for purchasing purposes and communicate supplier quality requirements.
• Proficiency with Microsoft Office and Excel, including creating and using pivot tables and analyzing purchasing data.
• Ability to work independently, communicate effectively with suppliers and internal stakeholders, and develop practical, evidence-based solutions.
• Bachelor's degree in Business, Supply Chain Management, or a related field, or five or more years of closely related experience in lieu of a degree.

Preferred Qualifications
• Aerospace and defense manufacturing purchasing experience, including familiarity with government procurement compliance, FAR/DFARS, cost or price justification, and supplier flow-down requirements.
• Experience buying technically complex commodities in regulated manufacturing environments.
• Experience with supplier onboarding, supplier scorecards, supplier corrective actions (SCARs), and supplier risk mitigation.
• Oracle ERP experience or participation in an ERP implementation or transition.
• Familiarity with Lean, Six Sigma, or continuous improvement programs and an interest in actively driving improvements.
• APICS, CPSM, CPM, or comparable supply chain/procurement certification.
• Experience independently organizing and facilitating supplier business reviews.

Work Arrangement & Travel
This position is based in Chandler, Arizona. The first 90 days require full-time on-site attendance for onboarding and cross-training. After onboarding, the role may be eligible for a hybrid schedule of three days on-site (including Monday and Friday) and two days remote, subject to operational needs and management approval. Additional on-site attendance, including month-end coverage, may be required. Employees must reside within commuting distance and be available to report on-site when business needs require. Work hours are flexible around core coverage of 8:00 a.m. to 3:00 p.m., subject to team and operational requirements.
Travel is expected to be less than 10%, primarily to other company facilities (including Hollister, California) or supplier locations.

Employment Eligibility
Due to U.S. Government contract requirements applicable to this position, only U.S. citizens are eligible for employment in this role.

Benefits & Culture
Eligible associates have access to company benefit programs, which may include paid time off, retirement savings, medical/dental/vision coverage, tuition reimbursement, parental leave, and company performance-based incentive opportunities, subject to applicable plan terms. PacSci EMC offers opportunities for growth, cross-functional collaboration, continuous improvement, and career development.

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Ralliant Corporation Overview

Ralliant, originally part of Fortive, now stands as a bold, independent public company driving innovation at the forefront of precision technology. With a global footprint and a legacy of excellence, we empower engineers to bring next-generation breakthroughs to life — faster, smarter, and more reliably. Our high-performance instruments, sensors, and subsystems fuel mission-critical advancements across industries, enabling real-world impact where it matters most. At Ralliant we’re building the future, together with those driven to push boundaries, solve complex problems, and leave a lasting mark on the world.

About Pacific Scientific Energetic Materials Company (PacSci EMC)

Pacific Scientific Energetic Materials Company (PacSci EMC), a Ralliant Corporation (NYSE: RAL) operating company, makes critical missions possible. From concept to demonstration to delivery, we provide leading-edge energetic materials, devices and subsystems for use in military and commercial applications. With engineering and manufacturing capability in Arizona and California, our associates work together to solve the toughest technical challenges with a dedication to Safety First, Quality Every TimeTM. We enable success for innumerable missions on a daily basis, impacting the lives of military personnel, law enforcement officers, commercial airline pilots, astronauts, and oil field operators. For nearly a century, PacSci EMC’s experience and expertise has been relied upon in the times When Milliseconds MatterTM. For more information, go to

PacSci EMC is an equal opportunity employer. We do not discriminate against any applicant or employee on the basis of race, sex, religion, age, national origin, color, disability, or veteran status. Nonetheless, pursuant to our subcontractor status on highly sensitive national security matters, Mechanical Assemblers and all other floor personnel who frequently shift cell assignments, as well as any personnel directly working with the following contract are subject to the following contractual provision: THAAD PRIME Flowdowns (H-Clauses) H-42 FOREIGN PERSONS, paragraph D., “All employees of all entities that make up the Contractor’s team, whether subcontractors, consultants, or anyone who works with or on behalf of the Contractor will be citizens of the U.S.” Accordingly, only U.S. citizens will be qualified to fill these roles. We are committed to providing a workplace free of any discrimination or harassment.

We all have a role in building a community where everyone belongs. Where you can speak your mind, be yourself, and feel supported. It’s how we achieve more together — for each other, for our customers, and for the world.

We Are an Equal Opportunity Employer

Ralliant Corporation and all Ralliant Companies are proud to be equal opportunity employers. We value and encourage diversity and solicit applications from all qualified applicants without regard to race, color, national origin, religion, sex, age, marital status, disability, veteran status, sexual orientation, gender identity or expression, or other characteristics protected by law. Ralliant and all Ralliant Companies are also committed to providing reasonable accommodations for applicants with disabilities. Individuals who need a reasonable accommodation because of a disability for any part of the employment application process, please contact us at View email address on aiapply.co.