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Principal ML Engineer, ML Platform Engineering

Xometry

Salary not specified
Oct 30, 2025
North Bethesda, MD, US
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Xometry is looking to enhance its AI/ML solutions and foundational infrastructure by hiring a principal machine learning engineer to lead the technical implementation and vision for its core machine learning platform.

Requirements

  • Demonstrated experience designing and deploying cloud infrastructure (AWS preferred) to support machine learning, and machine learning models, with considerations for scale, reliability and security.
  • Deep understanding of the machine learning lifecycle and related infrastructure needs - feature stores, a/b testing, model registration, drift detection, automated retraining, etc.
  • Strong technical expertise in software engineering principles, including parallel and distributed computing, version control, reproducibility, and continuous integration.
  • Machine learning techniques and algorithms, with emphasis on their impact to infrastructure implementation - Including large-scale language and vision models (Transformers, GPT, VLMs, LLMs), deep learning (PyTorch, Tensorflow)
  • Infrastructure as Code (IaC), especially Terraform
  • REST API design and implementation
  • Object oriented and functional programming in Python
  • Multimodal data processing (e.g., combining text, image, and 3D data).

Responsibilities

  • Hands-On Technical Leadership: Adopt a 'lead by example' approach by actively coding and troubleshooting, as well as creating documentation and technical diagrams.
  • Teaching & Mentorship: Serve as a mentor and guide to engineers across the organization, teaching and mentoring them to grow their skills.
  • Code Review: Do code review and mentor others within the organization regarding best practices in ML Engineering.
  • Operational Excellence: Guarantee the delivery of superior infrastructure and software that not only meets but exceeds customer expectations, while aligning with the strategic business timelines.
  • Collaborative Strategy: Forge strong partnerships with product managers, data scientists, and company leadership to promote a culture of open communication and integrated team dynamics.
  • Guide Innovation: Champion the adoption of cutting-edge technologies, methodologies, and practices to enhance problem-solving efficiency and effectiveness across the AI/ML organization.

Other

  • At least 7 years of experience in machine learning engineering, software engineering, data science, or similar technical role.
  • A bachelor’s degree is required, but an advanced degree (M.S. or PhD) in computer science, machine learning, AI, or a related field is preferred and may substitute for some years of experience.
  • Demonstrated ability to interact and communicate effectively at all levels of the organization, from executives to product managers and a wide variety of stakeholders and contributors
  • Experience in the manufacturing, supply chain, or similar industries is a plus.
  • Must be a US Citizen or Green Card holder (ITAR)