Senior Supplier Development Engineer Jobs in Reston, VA

Xometry is a leading on-demand manufacturing marketplace that's transforming how companies source and produce parts. We're looking for a highly motivated and experienced Supplier Development Engineer responsible for production partner development  to join our team. In this role, you'll be the bridge between our internal Technical sales & Sourcing teams and our external supplier network, focusing on, pro-active network supplier for large & production deals, optimizing supplier performance, managing risk, and ensuring our partners are prepared for complex, high-stakes projects.

Key Responsibilities

• Supplier Development & Engagement
• Build and maintain strong, trust-based relationships with our diverse network of manufacturing partners to increase their engagement and capacity.
• Engage with new supplier partners onboarded for the purpose of serving production programs, and facilitate partner success in simultaneously navigating the Xometry platform and serving the customer needs.
• Coach partners on industry best practices related to documentation, finishing processes, and quality assurance.
• Support partner readiness for complex and highly regulated programs, including those in the aerospace, defense, and medical industries

Cross-Functional Collaboration

• Work closely with internal teams, including sourcing, engineering, and project management, to ensure our partners' capabilities align with the Statement of Work (SOW) requirements for each project.
• Support Technical Account Managers (TAMs) and Project Managers (PMs) by assessing new partner capabilities and fit for new bids and proposals.
• Flag potential risks early, such as capacity constraints, financial weaknesses, or geopolitical exposures, to inform strategic decision-making.
• Assist in root-cause analysis of late shipments (e.g., finishing delays, raw material shortages, inspection bottlenecks) and help partners implement sustainable mitigation plans.

Controlled Processes & Special Qualifications

• Support the qualification of finishing suppliers (e.g., plating, anodizing, chemical conversion, coatings, paint/prime) to meet stringent aerospace and defense standards.
• Assist partners in pursuing and maintaining special process qualifications such as NADCAP, AMS, VAPS, PPS, and TS16949.
• Oversee the verification and validation of controlled processes, including heat treatment, plating, and coatings.
• Help identify and address compliance requirements from frameworks like DoD, FAA, TCCA, DFARS, and ITAR, ensuring our partners meet all necessary regulations.

Required Qualifications

• Bachelor's degree in Engineering, Supply Chain Management, or a related technical field.
• A minimum of [e.g., 3-5] years of experience in supplier development, supplier quality, or a similar role within a manufacturing or technical environment within manufacturing, supply chain, or a related technical field.
• Strong understanding of manufacturing processes and quality standards.
• Excellent communication and interpersonal skills with a proven ability to build and maintain relationships.
• Problem-solving mindset and a talent for mediating complex situations.
• Knowledge of special processes and industry certifications (NADCAP, AS9100, etc.) is a significant plus.
• Familiarity with compliance frameworks (ITAR, DFARS) and their implications for manufacturing.
• Strong understanding of quality management systems and methodologies (e.g., APQP, PPAP, Lean Manufacturing, Six Sigma).
• Willingness to travel to supplier locations as required.

The estimated base salary range for new hires into this role is $79,000-$103,000 annually + annual bonus depending on factors such as job-related skills, relevant experience, and location. We also offer a competitive benefits package, including 401(k) match, medical, dental and vision insurance; life and disability insurance; generous paid time off including vacation, sick leave, floating and fixed holidays, maternity and bonding leave; EAP, other wellbeing resources; and much more.

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