Senior Underwriter Assistant

Job Description

Our team provides underwriting support across Sompo's global reinsurance platform. We partner closely with brokers, underwriters, and cross-functional teams to deliver accurate, timely underwriting execution through technical contract expertise, disciplined data management, and operational excellence. Working alongside underwriting, claims, finance, actuarial, legal, IT, and operations, you'll play a key role in supporting deal execution, renewals, and portfolio management.

What you’ll be doing: 

• Interpret and analyze reinsurance deals for accurate system entry and program setup. 

• Manage underwriting programs by maintaining data integrity, documentation, reports, and portfolio tracking. 

• Coordinate the renewal process, including gathering prior-year data, experience reports, AM Best information, and accounting items. 

• Review slips and contracts for accuracy, compare renewals, maintain diary systems, and ensure complete documentation supporting final contract terms. 

• Monitor accounts, premium activity, cash receipts, contract adjustments, and provisional notices of cancellation. 

• Partner with brokers, clients, Finance, Claims, IT, and Business Services to support contract administration and account processing. 

• Create and maintain management and portfolio reports using underwriting systems, Excel, and reporting tools. 

• Support business initiatives through research, financial analysis, presentations, marketing materials, and special projects. 

• Identify opportunities to improve processes and systems, participate in user acceptance testing (UAT), and contribute ideas that enhance team effectiveness. 

What You'll Bring 

• 5+ years of reinsurance industry experience with a broker, reinsurer, or ceded reinsurance department. 

• Strong knowledge of reinsurance contract wording and underwriting support processes. 

• Bachelor's degree or equivalent combination of education and relevant experience. 

• Advanced Excel skills, including PivotTables; experience with Power BI is a plus. 

• Strong analytical, organizational, and problem-solving skills with exceptional attention to detail. 

• Ability to manage multiple priorities, work proactively, and collaborate effectively across teams. 

• Experience maintaining accurate data, producing reports, and supporting underwriting operations in a fast-paced environment.