Staff Software Engineer

Xometry • Waltham, MA

4d • $176,250 - $182,500 • Hybrid

About The Position

Xometry is seeking a Staff Software Engineer to join its Core Platform team in a strategic technical leadership role focused on the architectural evolution of its flagship enterprise partnership. The role will re-architect core application services so they operate natively within a partner’s digital ecosystem, rather than as external add-ons. The engineer will shape the technical direction of multiple products and establish engineering patterns that enable Xometry’s AI to operate on the partner’s native 3D geometry, moving toward real-time design-for-manufacturability feedback and one-click procurement within the partner’s enterprise design environment.

The position requires a hybrid schedule, working three days per week at the North Bethesda, Maryland, or Waltham, Massachusetts office. The Staff Software Engineer will lead the integration of production ML pipelines into the application layer, establish architectural and operational standards for scalable enterprise deployments, and address data governance and security challenges, including keeping part files within partner network infrastructure. They will guide cross-functional execution and technical decisions across engineering, marketplace, data science, senior leadership, and external partner teams.

The role requires 12 or more years of professional software development experience, expert-level proficiency in Python, AWS infrastructure, and modern frontend frameworks such as React/NextJS, and a record of shaping technical direction across multiple teams. A bachelor’s degree in Computer Science or a related field, or equivalent experience, is required. The estimated U.S. base salary is $176,250–$182,500 annually, plus an annual bonus; total compensation includes base salary, bonus, and equity.

Requirements

• 12 or more years of professional software development experience, with a history of scaling complex platforms.
• Expert-level mastery of Python, AWS infrastructure, and modern frontend frameworks such as React/NextJS for complex enterprise applications.
• Proven experience shaping the technical direction of multiple teams and establishing engineering patterns as organizational standards.
• Track record of securing endorsement for 6–12 month initiatives and driving them to successful production deployment.
• Ability to influence senior leadership and external partners on technical strategy and long-term technology investments.
• Bachelor’s degree in Computer Science or a related field, or equivalent experience.
• Ability to work a hybrid schedule three days per week at the North Bethesda, MD, or Waltham, MA office.

Nice To Haves

• Experience building SaaS platforms or complex B2B integration hubs.
• Experience in manufacturing, logistics, or CAD/PLM software ecosystems.
• Deep understanding of enterprise data controls, dedicated tenants, and SOC 2/ISO compliance in a cloud environment.
• Experience architecting large-scale ML platforms or high-frequency marketplace engines.

Responsibilities

• Design high-performance solutions and establish organizational standards for embedding Xometry-AI into external PLM environments.
• Advance an extensible and scalable architectural framework that meets enterprise SLIs/SLOs.
• Lead integration of production ML pipelines into the application layer, including optimized model serving and real-time geometry analysis.
• Champion AI-assisted development practices and mentor engineers in using AI tools to accelerate delivery, improve code quality, and reduce toil.
• Address data gravity and security challenges, including developing ring-fenced data governance approaches that keep part files within a partner’s network infrastructure.
• Establish strategic direction and lead execution of the core integration.
• Ensure integration of DFM and IQE AI engines creates a distinct advantage for the partnership.
• Facilitate technical discussions and produce durable, well-documented decisions across the organization.
• Serve as a primary point of contact for senior leadership, guide risk/reward discussions, and champion cross-functional development with marketplace and data science teams.
• Define reliability and security standards for enterprise deployments, whether partner-hosted or Xometry-hosted, and ensure seamless multi-tenant management.
• Coordinate with partner and Xometry engineering groups to develop new ways of conducting operations.

Benefits

• 401(k) match
• Medical, dental, and vision insurance
• Life and disability insurance
• Generous paid time off, including vacation, sick leave, floating holidays, and fixed holidays
• Maternity and bonding leave
• Employee Assistance Program (EAP) and other wellbeing resources
• Stipend for catered lunch on Tuesdays and Thursdays
• Annual bonus
• Equity

What This Job Offers

• Job Type: Full-time
• Career Level: Senior