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.