# Hexiang Wang

> Principal Engineer at Berkshire Hathaway Specialty Insurance

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/hexiang

I’m an engineer and builder with 10+ years of experience in computational simulation, machine learning, probabilistic modeling, and large-scale analytics. My work has centered on turning complex technical ideas into practical systems, from high-fidelity physical simulators to production analytical platforms used for real-world decision-making.

At BHSI, I architected and developed catastrophe modeling platforms used for decision-making at scale. Earlier in my career, I built high-fidelity simulation software for infrastructure and hazard analysis. I’m especially interested in applying my strength in modeling, data, and AI/ML engineering to fields where building intelligent products, applied models, and scalable tools matters.

Expertise: AI/ML, computational simulation, probabilistic modeling, applied mathematics, statistics, and large-scale analytical systems.

## Work Experience
### Principal Engineer @ Berkshire Hathaway Specialty Insurance
Jan 2026 – Present | San Francisco Bay Area
- Build GenAI agentic systems that integrate internal data, tools, knowledge bases, and workflows into a unified decision-support environment.
- Lead the development and productionization of statistical and data science/ML models for natural catastrophe and non-natural catastrophe risk.
- Develop insight engines to support underwriting decisions and portfolio management with data-driven analytics.
- Engineering a unified, scalable financial modeling framework with on-the-fly pricing capabilities.
- Expand the internal TrueRisk modeling platform to support additional perils and geographic regions.
- Improve TrueRisk platform performance through distributed computing, Databricks, and data schema optimization, etc

### Senior Engineer @ Berkshire Hathaway Specialty Insurance
Jan 2023 – Jan 2026 | San Ramon, California, United States

### Engineer, Catastrophe/Risk Modeling @ Berkshire Hathaway Specialty Insurance
Jan 2021 – Jan 2023 | San Ramon, California, United States
Architect, develop/implement, and QA/QC of BHSI internal catastrophe modeling platform TrueRisk:
 
	- TrueRisk Wind, Storm Surge & Japan Earthquake Simulation Engines: Research & development of hazard and vulnerability uncertainty & correlation modeling, loss simulation  

	- TrueRisk Financial Module: Research & development of a unified financial module that can accurately & efficiently model all types of financial terms for multi-peril, occurrence/aggregate terms, complex exposures grouping, etc.   

	- Scaling up & performance optimization of TrueRisk platform for multi-peril analysis of global exposures coverage through multi-process/thread parallelization, asynchronous framework, and innovative network-based financial modeling approach

	- Built unit test system for QA & QC

### Research Assistant @ University of California, Davis
Jan 2016 – Jan 2021 | Davis
PhD Dissertation: Uncertainty Quantification and Risk Analysis of Earthquake Soil Structure Interacting System 

- Research & development on computation modeling/simulation of nonlinear earthquake soil-structure interacting system.  

- Research & development on probabilistic seismic hazard/risk analysis and earthquake ground motion modeling, uncertainty quantification


## Education
### Ph.D. in Civil Engineering
University of California, Davis

### Master's degree in Applied Mathematics
University of California, Davis

### Bachelor's degree in Civil Engineering
Tongji University


## Contact & Social
- LinkedIn: https://linkedin.com/in/hexiang-wang

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Source: https://flows.cv/hexiang
JSON Resume: https://flows.cv/hexiang/resume.json
Last updated: 2026-04-12