
Director, Data Science: Data Science Tools
Liberty MutualDescription
The Data Science Infrastructure organization within USRM is hiring a Senior Technical Professional, Data Scientist to join the Data Science Tools team. This role will focus on improving the end-to-end modeling workflow for USRM Data Science by building internal tools, pipelines, and applications that streamline model development, evaluation, deployment, and iteration. The ideal candidate is highly technical, proactive, and motivated by building systems that help other data scientists work more efficiently.
**Candidates who live within 50 miles of Boston, MA; Portsmouth, NH; Seattle, WA; Columbus, OH; or Plano, TX will follow a hybrid schedule, coming into the office two days per week. Otherwise, this role is remote with occasional travel. **
Responsibilities:
- Design and build internal tools, pipelines, and applications that improve model development, evaluation, and deployment
- Own strategy and roadmaps for improving data science workflows and tooling across USRM
- Design, build, and maintain Python packages used across the organization
- Evaluate and implement AI agent capabilities in tooling using approaches such as MCP, RAG, PydanticAI, LangChain, or related frameworks
- Work with workflow and modeling tools such as Luigi, Airflow, Celery, MLflow, H2O, scikit-learn, Optuna, and LightGBM, as well as Python development tools such as Pydantic, FastAPI, uv, ruff, and pytest
- Promote MLOps and AI agent best practices in collaboration with groups such as Enterprise Data & Data Science
- Stay current on developments in open-source data science frameworks, MLOps, and agentic coding practices
- Help shape the direction of the Tools team and contribute to a culture of ownership, collaboration, and continuous improvement
The ideal candidate will have:
- Professional experience building and maintaining Python-based data science or Machine Learning tooling used by multiple end users or teams
- Worked with any of the following in a professional setting: Git, Bash/shell scripting, uv, pre-commit, ruff, pytest, or Pydantic
- Built, deployed, or maintained workflows or pipelines using any of the following: Airflow, Luigi, Celery, Databricks, or MLflow
- Implemented or supported AI/LLM-based tooling using frameworks such as PydanticAI, LangChain, MCP, or RAG
- Developed, reviewed, or maintained internal Python packages, APIs, or data science applications using tools such as FastAPI, Streamlit, Dash, NiceGUI, or Plotly
- Applied agentic AI techniques in day-to-day development and incorporate AI capabilities directly into tools and applications where they create meaningful value for data scientists
- Broad knowledge of predictive analytic techniques and statistical diagno
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