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Staff Site Reliability Engineer (SRE)

Xometry· Software Engineering
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Hybrid (Waltham, MA)$165k - $190kfull-timePosted 1w ago

About the role

Senior individual contributor role to define technical strategy and direction for reliability and performance of Xometry’s infrastructure and software systems; lead cross-functional initiatives, mentor engineers, and influence architectural decisions.

Responsibilities

  • Lead the resolution of the most complex, cross-cutting technical challenges and drive them to completion, ensuring alignment with organizational goals
  • Define the long-term technical roadmap and strategy for core SRE platforms and services
  • Architect, scope, and drive delivery of major engineering initiatives, balancing trade-offs between effort, risk, and long-term business impact
  • Set the standard for clean, efficient, and well-documented code, focusing on core system improvements and features
  • Collaborate effectively across teams, communicating clearly on progress, blockers, and outcomes to technical and executive stakeholders
  • Provide technical mentorship to engineers across the organization and drive organization-wide adoption of best practices for operational excellence, observability, and infrastructure security
  • Demonstrate accountability, curiosity, and continuous improvement in all aspects of your work
  • Develop, configure, and maintain underlying platforms for deployed software (AWS accounts and networking, kubernetes clusters, and similar systems), focusing on architectural design and scaling
  • Develop, configure, and maintain observability and monitoring tools (Coralogix, Sentry, etc.), including defining SLOs and SLIs
  • Develop, configure, and maintain software development (CI/CD) tools (github actions runners, ArgoCD, etc)

Qualifications

  • 8+ years of professional experience in infrastructure management or backend software development experience in a fast-paced, product-driven environment
  • Demonstrated deep technical expertise in one or more of the following languages: Python, Javascript, or Unix Shell
  • Extensive experience with AWS, including architecting, deploying, monitoring, and scaling production workloads across multiple accounts and regions
  • Deep expertise with Terraform, Kubernetes, advanced CI/CD pipelines, and Docker/containerization best practices
  • Proven experience leading technical projects with significant cross-functional impact
  • Comfortable working in an operational environment, including acting as a point of escalation for complex issues outside of the on-call schedule
  • Excellent communication and collaboration skills, comfortable engaging with technical and executive stakeholders

Skills

Required:Programming in Python, JavaScript, or Unix ShellAWSTerraformKubernetesCI/CDDocker/containerization

Benefits

  • 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
  • Employee Assistance Program (EAP) and other wellbeing resources
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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