Principal Software Engineer

Xometry is seeking a Principal Software Engineer to join the Xometry Partner Experience Technology Organization. In this role as a senior individual contributor, you will guide software implementation across several engineering teams and influence decisions across the technology organization. You will bring deep expertise and technical leadership to help build fast, reliable, and intuitive solutions that empower partners to more easily manage jobs, streamline operations, and maximize their growth potential within the manufacturing marketplace.

How You'll Contribute

• Hands-On Technical Leadership: Write and review architectural plans for new projects and participate in implementation with the team.
• Guide Innovation: Champion the adoption of a balanced mix of traditional and cutting-edge technologies and methods.
• Teaching & Mentorship: Mentor and guide engineers across the organization to grow their skills.
• Code Review: Perform code reviews and mentor others on effective review practices.
• Operational Excellence: Deliver superior software aligned with customer expectations and strategic business timelines.
• Collaborative Strategy: Partner with product managers, designers, and leadership to promote communication, collaboration, and high standards.

What You'll Bring

• 15+ years of professional software development experience in a fast-paced, product-driven environment
• Marketplace product experience with understanding of scaling multi-sided platforms
• Strong full-stack development expertise including:
  • Backend development with Python, including services, APIs, and data-driven systems
  • Backend microservices and REST API design using Node.js
  • Frontend development with React and TypeScript focused on scalable UI design and usability
• Experience with AWS, including deploying, monitoring, and scaling production workloads
• Proven leadership skills with ability to set technical direction and mentor engineers
• Excellent communication and collaboration abilities with technical and non-technical stakeholders

Compensation and Benefits

• Base salary range: $148,000 - $193,000 annually plus bonus
• 401(k) match
• Medical, dental, and vision insurance
• Life and disability insurance
• Generous paid time off including vacation, sick leave, holidays, maternity and bonding leave
• Employee assistance and wellbeing resources

Xometry is an equal opportunity employer. For US-based roles, Xometry participates in E-Verify and will confirm work authorization after offer acceptance.