
Joon C. Choi
Commercial Lines Underwriter
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About
Performance-driven Commercial Underwriter with a foundational background in high-volume operations and data analytics at Amazon. Transitioned into the insurance industry in 2024, obtaining a NYS Property & Casualty license and advancing from processing to Associate to Full Underwriter within 14 months. Expert in evaluating complex risks across admitted and E&S markets, with a specialized focus on lessor's risk, restaurant, and construction accounts.
Actively pursuing the Associate in Commercial Underwriting (AU) designation, with AU 60 and 61 completed. Proven track record of managing 100+ retail brokers and 25+ carrier relationships by leveraging analytical rigor to deliver profitable, tailored insurance solutions.
Experience
Property and Casualty Commercial Lines Underwriter at International Underwriting Agency (IUA) (2025-06 – Present)
- Manage a fast-paced commercial desk, actively reviewing 50+ submissions weekly.
- Drive profitable growth by averaging $29,000 in weekly bound premium (approx. $1.5M annualized), specializing in new business and renewals across 25+ carrier direct markets.
- Expertly navigate both admitted and E&S/non-admitted markets, with a focus on high-complexity risks such as coastal property, new ventures, and accounts with adverse loss history.
- Skilled in assessing risk for a broad range of industries, including habitational, manufacturing, mercantile, restaurant, and construction-related accounts.
- Partner with a network of 100+ retail and wholesale brokers to craft tailored insurance programs that align with specific carrier underwriting appetites and guidelines.
- Apply data analysis and risk management principles when underwriting risks, leveraging AU 60 and AU 61 training to ensure technical accuracy
Property and Casualty Associate Underwriter & Processing Team at International Underwriting Agency (IUA) (2024-04 – 2025-06)
- Performed comprehensive risk assessments by auditing multi-year loss runs, inspection reports, and complex contracts to identify exposure gaps and ensure coverage alignment.
- Orchestrated the complete underwriting lifecycle for a high volume of accounts, managing everything from initial submission triage to binding, policy issuance, and post-bind endorsements.
- Served as a primary point of contact for processing accuracy, ensuring all bound policies met rigorous carrier compliance standards and internal agency guidelines.
- Partnered with Senior Underwriters to proactively rewrite and remarket non-renewed or canceled business, successfully retaining key accounts through competitive placement in alternative markets.
Business Analyst II at Amazon (2023-03 – 2024-01)
- Responsible for capacity planning for all Amazon delivery stations in Long Island and Queens, ensuring optimal resource allocation, meeting service level agreements, and ensuring customer promise.
- Experience with collaborating with cross-functional teams, including finance, human resources, operations, and process engineers, to align business strategies and improve operational efficiency.
- Conduct extensive data analysis to generate insights and support decision-making processes within the organization.
Manager, Operations II at Amazon (2020-08 – 2023-03)
- Responsible for managing daily operations at AMZL delivery station, processing and delivering over 150k+ units while overseeing daily shift planning, enforcing benchmark rates through quality audits, and reducing site labor costs.
- Managed a team of 150+ Amazon Associates and trained three junior shift managers, providing mentoring, effective coaching, and advocating for cost-efficiency practices in daily operational tasks.
Corporal/ Dispatch NCO at United States Marine Corps (2014-08 – 2020-09)
- Served in five major annual operations, providing logistical support to five-line companies with food, troop transportation, and ammunition.
- Created and maintained spreadsheets on the status of 80+ tactical vehicles, ensuring vehicles were in proper operational condition prior to being dispatched.
Education
MBA in Finance – Stony Brook University (2020)
Bachelor in Business Management, Finance and Marketing – Stony Brook University (2019)

