Data Scientist​/Senior Data Scientist

Who are we?

A strategic and trusted insurance partner, Berkshire Hathaway Specialty Insurance (BHSI), provides a broad range of commercial property, casualty and specialty insurance coverages and outstanding service to customers and brokers around the world. Part of Berkshire Hathaway’s insurance operations, we bring our solutions to market with our stellar brand name, top-rated balance sheet, and the expertise of our global team of professionals, who exude excellent capabilities and strong character.

We are a values-based organization where respect, integrity, excellence, collaboration, and passion define who we are and how we do business. We value diversity of backgrounds, experience, and perspectives and strive to foster an inclusive environment that enables all our team members to bring their best selves to work. We are one team committed to building a culture where every teammate has the opportunity to contribute and be recognized.

Want to be part of the team building the finest property, casualty and specialty lines insurance company in the world?

Learn more about our unique culture and history.

Berkshire Hathaway Specialty Insurance (BHSI) has an exciting opportunity for Data Scientist / Senior Data Scientist to join the Catastrophe Engineering and Analytics (CAT E&A) team. CAT E&A is an innovative and versatile technical team conducting catastrophe risk research and development and providing complex quantitative metrics that inform underwriting decisions across multiple lines of business. The successful candidate will be responsible for identifying and applying cutting‑edge data science techniques to build a better view of the risk for multiple perils.

You will work across functional areas and perils within the team, supporting the development of models for various natural catastrophes, natural hazards, building vulnerability, and man‑made risks such as cyber, casualty, among others. In addition, you will conduct in‑depth evaluation of vendor models, research and develop internal views of exposure and risks, consult on account‑specific risk analyses, and develop internal tools to facilitate account underwriting decision‑making and other related activities.

• Evaluate and develop insights into large and diverse data sets from claims, hazard models, structural analysis, geospatial sources, and various other public/proprietary datasets.
• Develop and maintain expertise in advanced data science, machine learning, and artificial intelligence techniques, and their application to understanding risk.
• Work with domain experts across teams and perils to enhance our use of available data.
• Propose and execute innovative solutions to insurance problems that directly impact BHSI underwriting decisions.

• Ph.D. or M.S. in data science, civil engineering, atmospheric science, actuarial science, computer science, mathematics, or a related field.
• 3-6 years of industry experience is preferred and required for the Senior Data Scientist level role.
• Advanced knowledge of probability theory, statistics, and machine learning methods is required.
• Practical experience in insurance, catastrophe model development, cyber and casualty risk modeling, and/or exposure data collection is preferred.
• Experience applying advanced statistical techniques and machine learning to large data sets, especially in areas of structural performance, natural catastrophe hazard, building exposure data, geospatial data, or insurance claims data.
• Familiarity with large language models (LLMs), retrieval‑augmented generation (RAG), and their application in data‑driven workflows is a plus.
• Strong written and verbal communication skills.
• Strong programming skills in Python (preferred), R, and SQL.
• Experience and understanding of relational and non‑relational databases preferred.
• Comfort working within git‑based version‑control environments.
• Experience with Databricks or other cloud‑based data and analytics platforms preferred.
• Highly motivated, detail oriented, and team player.

• A competitive package and exciting growth opportunities for career‑oriented teammates.
• A dynamic,…