Principal Data Scientist - Gen AI

Xometry is seeking an exceptional Principal Data Scientist to join our Generative AI team. The ideal candidate will have a passion for advancing machine learning and generative AI capabilities, particularly for fine-tuning generative and language models, multimodal document understanding, and structured data extraction. This role will also serve as a key technical leader for high-stakes strategic initiatives, including the DFM AI + IQE integration with Siemens. This role requires a hybrid schedule (3 days a week) at our Waltham, MA or North Bethesda, MD office location.

Responsibilities

Own and drive an 18-24 month technical roadmap balancing innovation with disciplined business value delivery; Lead strategic planning and roadmap development for generative AI initiatives; Develop and deploy generative AI models and LLMs for multimodal document processing; Lead exploration and development of text and image-based data processing solutions; Provide technical leadership to the Generative AI team; Influence roadmaps, priorities, and resourcing of partner engineering, product, and business teams; Serve as technical architect for the embedded DFM AI + IQE track, leading integration into Siemens ecosystem; Design and implement efficient workflows for data preparation, cleaning, and augmentation; Utilize cloud platforms for large-scale data processing, model training, and deployment; Mentor and guide team members on advanced machine learning techniques; Stay updated with latest research in generative AI, deep learning, and multimodal data processing

Requirements

Typically 10-plus years of experience with a broad and deep portfolio of applied ML and data science work; or a PhD with 6-plus years of relevant experience; A bachelor's degree is required; Expert-level proficiency in Python and advanced scientific computing; Track record of building large-scale, production-grade ML systems; Proficient in Python, including key libraries such as PyTorch, TensorFlow, pandas, and numpy; Recognized depth in machine learning and statistical methodology; Expertise in large-scale language and vision models (e.g., Transformers, GPT, VLMs); Experience with multimodal data processing (e.g., combining text, image, and 3D data); Strong background in probability, statistics, and optimization techniques relevant to generative modeling; Demonstrated ability to drive 18-24 month technical initiatives that deliver lasting organizational and business impact; Familiarity with cloud computing resources and tools for model training and deployment (e.g., AWS SageMaker); Familiar with software engineering principles, including version control, reproducibility, and continuous integration; Exceptional influence and communication skills, with a track record of aligning executives and cross-functional partners around ambitious scientific directions

Nice to have

Advanced degree (M.S. or PhD) in computer science, machine learning, AI, or a related field; Experience in manufacturing, supply chain, or similar industries

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; EAP, other wellbeing resources; bonus