Senior Planner Buyer

Monarch Quantum•San Diego, CA

5d•$90,000 - $120,000

About The Position

Join Monarch Quantum as a Senior Planner/Buyer, an experienced individual contributor who supports material readiness for complex products in a fast-paced, engineering-driven environment. The role executes planning and procurement activities for rapid product iteration, evolving Bills of Materials (BOMs), and demanding technical requirements, while helping build foundational systems and supporting new product development. The position works closely with Engineering and other cross-functional teams to support engineering builds, prototype development, and low-rate production. It requires access to export-controlled information; employment is contingent upon the applicant being a U.S. person as defined by 8 U.S.C. § 1324b(a)(3). The expected annual salary range is $90,000–$120,000, commensurate with experience. Full-time employees are eligible for Monarch’s comprehensive benefits package. The company describes itself as an equal opportunity employer and does not discriminate on the basis of protected characteristics under applicable federal, state, and local laws.

Requirements

Bachelor’s degree in Supply Chain, Engineering, Business, or a related field, or equivalent experience.
5–8 years of experience in production planning, procurement, or planner/buyer roles.
Experience supporting new product introduction (NPI) or low-volume, high-mix manufacturing environments.
Ability to read and interpret technical drawings and specifications.
Strong ERP/MRP system experience.
Advanced Excel skills.
Familiarity with demand planning, MRP logic, and inventory control principles.
Understanding of supplier negotiations, RFQs, and basic contract terms.
Strong organizational skills and ability to manage multiple priorities in a dynamic environment.
Must be a U.S. person as defined by 8 U.S.C. § 1324b(a)(3), due to access to export-controlled information.

Nice To Haves

Experience in high-tech hardware sectors such as photonics, electronics, aerospace, or precision manufacturing.
Working knowledge of ISO9001 or AS9100 environments.
Creative, flexible, and eager to take on multiple responsibilities.
Passion for building systems from the ground up and comfort with ambiguity and change.

Responsibilities

Develop and maintain material requirements plans (MRP) for engineering builds, prototype development, and low-rate production.
Partner with Engineering to manage BOM releases, revisions, and Engineering Change Orders (ECOs).
Execute procurement against the Master Production Schedule (MPS), aligning materials with cost, schedule, and performance objectives.
Collaborate with Engineering, Quality, Program Management, and Finance to align materials with program milestones.
Monitor and manage long-lead-time components to prevent schedule risk, and proactively identify alternate parts or suppliers for long-lead or at-risk components.
Track and report supply chain metrics, including OTIF, supplier lead times, purchase price variance (PPV), inventory accuracy, and material availability.
Maintain accurate planning parameters, including lead times, safety stock, and order policies, within the ERP system.
Identify, qualify, and manage suppliers capable of meeting technical specifications and quality requirements.
Lead RFQs, perform cost analysis, and negotiate pricing, terms, and delivery schedules.
Establish and manage supplier relationships to ensure on-time, quality performance.