Buyer

Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly.

Who We’re Looking For

We are seeking a highly motivated, detail-oriented, and resourceful Buyer to support procurement and supply chain operations across Quantum Space's growing spacecraft development and manufacturing programs. In this role, you will be responsible for coordinating purchasing activities, managing supplier relationships, and ensuring the timely acquisition of materials, equipment, and services that support our engineering, production, and business operations.

You will work at the intersection of supply chain, procurement, engineering, manufacturing, facilities, and finance—collaborating with internal stakeholders and external suppliers to ensure purchasing activities are executed accurately, efficiently, and in alignment with company priorities.

You will play a key role in maintaining supplier performance, improving procurement processes, and supporting cost, quality, and delivery objectives. This position is ideal for someone who thrives in a fast-paced, hands-on environment, approaches challenges with creativity and urgency, and enjoys building strong supplier partnerships while helping a growing aerospace company operate at scale.

Where You’ll Make an Impact

Review purchase requisitions and issue accurate, timely purchase orders for materials, equipment, services, and other business requirements

Manage purchasing activities across multiple commodities and internal functions, including production, engineering, facilities, capital projects, and general business operations

Ensure purchase orders are acknowledged by suppliers and confirm pricing, quantities, delivery schedules, and contractual terms

Review supplier quotations for completeness, accuracy, competitiveness, and alignment with Quantum Space's purchasing requirements and terms and conditions

Obtain and document original supplier promise dates, monitor delivery commitments, and proactively identify potential schedule risks

Maintain and review open purchase order reports, track outstanding deliveries, and coordinate with suppliers to ensure materials and services arrive on schedule

Expedite critical parts, equipment, and services to support production schedules, engineering milestones, and operational priorities

Serve as a primary point of contact for internal stakeholders, providing responsive procurement support, order status updates, and timely resolution of purchasing issues

Collaborate with Finance, Accounts Payable, and suppliers to resolve invoice discrepancies, pricing issues, and payment concerns

Support supplier performance management by monitoring cost, quality, delivery, responsiveness, and overall reliability

Partner with procurement and supply chain leadership to identify cost savings opportunities, improve purchasing efficiency, and strengthen supplier relationships

Lead supplier onboarding activities, including collecting required documentation, coordinating internal approvals, and ensuring supplier records are accurate and complete

Support supplier negotiations and purchasing decisions to achieve competitive pricing, favorable terms, and reliable delivery performance

Lead assigned procurement projects and process improvement initiatives that enhance purchasing operations and supply chain effectiveness

Maintain accurate purchasing records, supplier information, and procurement documentation within applicable business systems

Collaborate with engineering, production, and supply chain teams to identify and resolve procurement constraints that could impact spacecraft development, manufacturing, or integration schedules

Help establish scalable, efficient, and disciplined procurement practices that enable Quantum Space to move quickly without compromising quality, cost effectiveness, or supplier accountability

What It Takes

Bachelor's degree in Supply Chain Management, Business Administration, Operations Management, Engineering, or a related field; or 4+ years of professional experience in a supply chain, production, engineering, or related function in lieu of a degree

Strong organizational skills and attention to detail, with the ability to manage multiple purchase orders, suppliers, and competing priorities simultaneously

Excellent problem-solving skills with a proactive, solutions-oriented approach and a bias for action

Ability to learn quickly, adapt to changing requirements, and prioritize effectively to meet internal customer and business needs

Strong written and verbal communication skills with the ability to collaborate effectively with suppliers, internal stakeholders, and cross-functional teams

Excellent customer service skills and a commitment to providing responsive, reliable support to internal business partners

Strong analytical skills with the ability to evaluate supplier quotations, purchasing data, delivery schedules, and procurement requirements

Proficiency with Microsoft Office applications, particularly Excel, Word, Outlook, and other business productivity tools

Ability to maintain accurate purchasing records, manage documentation, and follow established procurement processes

Strong follow-through and accountability when managing supplier commitments, outstanding orders, and time-sensitive purchasing activities

High level of integrity, professionalism, and sound judgment when handling supplier relationships, purchasing decisions, and confidential business information

Self-motivated, resourceful, and comfortable working independently in a fast-paced, evolving environment

Ability to work effectively across multiple departments while balancing cost, quality, delivery, and operational priorities

Nice-to-Have Experience

Experience in purchasing, procurement, supply chain operations, or supplier management

Experience purchasing capital equipment, facilities-related goods and services, or other indirect materials and services

Experience supporting procurement activities in aerospace, defense, automotive, electronics, advanced manufacturing, or other technically complex industries

Familiarity with spacecraft manufacturing, flight hardware procurement, or engineering-driven purchasing requirements

Experience working with Enterprise Resource Planning (ERP), Material Requirements Planning (MRP), or purchasing management systems

Experience managing purchase orders, supplier acknowledgments, open order reports, and delivery schedules

Experience reviewing supplier quotations, comparing pricing, and supporting supplier negotiations

Familiarity with supplier onboarding, vendor qualification, and supplier performance management processes

Experience coordinating with Accounts Payable to resolve invoice discrepancies and payment issues

Experience supporting cost reduction initiatives, purchasing process improvements, or procurement efficiency projects

Knowledge of procurement best practices, supplier terms and conditions, and purchasing compliance requirements

Experience working with cross-functional teams in engineering, manufacturing, production planning, finance, or facilities management

Experience in a startup or small-team environment where flexibility, initiative, and the ability to manage multiple responsibilities are essential

What You’ll Get

Ownership – Take responsibility for critical purchasing activities, supplier coordination, and procurement execution that directly support spacecraft development and production

Innovation – Help strengthen and modernize procurement practices while supporting advanced spacecraft technologies enabling next-generation space mobility, maneuverability, and defense missions

Impact – Play a direct role in ensuring the materials, equipment, and services needed to build mission-critical spacecraft are delivered on time, at the right cost, and to the required quality standards

Growth – Build broad expertise across aerospace procurement, supplier management, supply chain operations, and manufacturing support while working alongside a multidisciplinary engineering and operations team

Mission Exposure – Gain visibility across the spacecraft development and production lifecycle, from engineering and supplier sourcing through hardware manufacturing, integration, testing, and launch readiness

Compensation – Competitive salary, equity, and comprehensive benefits including medical, dental, vision, generous leave, HSA, 401(k) matching, and equity sharing

Location

Hawthorne, CA

Base Salary

$80,000 to $95,000

The salary range for this role is an estimate based on a wide range of compensation factors. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Quantum Space's total compensation package.

Additional Requirements

To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Apply now. Join us in building the next generation of spacecraft.