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Sompo has a unique opportunity for a Senior Underwriter Assistant to join our Reinsurance Underwriting Support team.

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.

Location: This position can be based in either our Garden City, Purchase, or New York City, New York office. We strive for collaboration which is why we offer a work environment where our employees thrive and develop long lasting careers.

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.

Salary Range:$90,000 – $150,000 Actual compensation for this role will depend on several factors including the cost of living associated with your work location, your qualifications, skills, competencies, and relevant experience.

At Sompo, we recognize that the talent, skills, and commitment of our employees drive our success. This is why we offer competitive, high-quality compensation and benefit programs to eligible employees.

Our compensation program is built on a foundation that promotes a pay-for-performance culture, resulting in higher incentive awards, on average, when the Company does well and lower incentive awards when the Company underperforms.  The total compensation opportunity for all regular, full-time employees is a combination of base salary and incentives that gets adjusted upfront based on overall Company performance with final awards based on individual performance.

We continuously evaluate and update our benefit programs to ensure that our plans remain competitive and meet the needs of our employees and their dependents.  Below is a summary of our current comprehensive U.S. benefit programs:

• Two medical plans to choose from, including a Traditional PPO & a Consumer Driven Health Plan with a Health Savings account providing a competitive employer contribution

• Pharmacy benefits with mail order options

• Dental benefits including orthodontia benefits for adults and children

• Vision benefits

• Health Care & Dependent Care Flexible Spending Accounts

• Company-paid Life & AD&D benefits, including the option to purchase Supplemental life coverage for employee, spouse & children

• Company-paid Disability benefits with very competitive salary continuation payments

• 401(k) Retirement Savings Plan with competitive employer contributions

• Competitive paid-time-off programs, including company-paid holidays

• Competitive Parental Leave Benefits & Adoption Assistance program

• Employee Assistance Program

• Tax-Free Commuter Benefit

• Tuition Reimbursement & Professional Qualification benefits