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Staff Software Engineer

Xometry· Software Engineering
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Waltham, MA$170k - $195k + equityfull-timePosted 1w ago

About the role

Staff Software Engineer to join Thomas engineering, helping guide software implementation across teams and set technical direction for shared systems and AI infrastructure while remaining hands-on.

Responsibilities

  • Hands-on technical leadership. Write and review architectural plans for new projects, then participate in implementation with the teams.
  • Guide innovation. Champion a good mix of proven and cutting-edge technologies and methods, including AI adoption across the platform.
  • Teaching and mentorship. Serve as a mentor and guide to engineers across the organization, helping them grow their skills.
  • Code review. Do code review and mentor others across the org to perform good code reviews.
  • Operational excellence. Deliver reliable, high-quality software that exceeds customer expectations and aligns with business timelines.
  • Collaborative strategy. Build strong partnerships with product managers, designers, and leadership to promote open communication, strong collaboration, and high standards.

Qualifications

  • 10+ years of professional software development experience, with a track record of owning outcomes, setting technical direction across teams, mentoring engineers at all levels, and influencing product and business decisions.
  • Strong full-stack engineering skills: backend services in TypeScript/Node.js with GraphQL APIs, React and Next.js frontend, PostgreSQL and analytical data stores, and search (OpenSearch) at production scale.
  • Hands-on experience with AI product engineering: LLM applications, retrieval-augmented generation, vector search, embedding models; AI-native development environment.
  • Experience with multimodal embeddings and search, agent orchestration frameworks (e.g. LangGraph, LangChain), model fine-tuning/adaptation, deep learning frameworks (PyTorch, TensorFlow).
  • Fast learner with high agency; ability to learn and share insights in an AI-native environment.
  • Marketplace or multi-sided platform experience is highly desirable, with understanding of scaling shared platforms.
  • Excellent communication and collaboration with both technical and non-technical stakeholders, from junior ICs to executives.

Skills

Required:Architectural planningFull-stack development (TypeScript/Node.js, GraphQL, React, Next.js)AI product engineering
Nice to have:Multimodal embeddings & searchLangGraph/LangChain

Benefits

  • 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
  • Employee Assistance Program (EAP) and other wellbeing resources
  • A stipend for catered lunch on Tuesdays and Thursdays
Last updated Oct 14, 2026. Interested? Apply on the company site.

About Xometry

Where Big Ideas Are Built | Production Parts and Prototypes | Xometry

Xometry is a leader in high-precision production part and prototyping manufacturing on demand. Get instant quotes on CNC machining, 3D printing, sheet metal fabrication, laser cutting, and more.

CNC Machining3D PrintingSheet Metal FabricationLaser CuttingPrototypingInjection MoldingMetal Part ProductionHigh-Volume Metal Production
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