Senior Actuary, P&C Reserving - General Liability & Umbrella (Remote)

As a team member in Finance at Nationwide, a Fortune 100 company with nearly $70 billion in annual sales, the opportunities are endless! Let Nationwide help create your career journey! At Nationwide®, “on your side” goes beyond just words. Our customers are at the center of everything we do and we’re looking for associates who are passionate about delivering extraordinary care. Nationwide is hiring a Sr Actuary, P&C Reserving to join the General Liability and Umbrella Reserving team. This group sits within Nationwide’s P&C Commercial Lines and NWAG organization and plays a critical role in supporting profitable growth and long-term financial strength across the enterprise. This is a high-impact Sr Actuary role, with leadership responsibility, as well as visibility to actuarial and business leadership. It offers the opportunity to own meaningful reserving work, influence decisions across Commercial Lines and NWAG portfolios, and help advance how the organization uses actuarial insight.

Own the design, execution, review, and communication of reserve analyses for assigned General Liability and Umbrella business, including quarterly, annual, and ad hoc studies at the line, segment, program, and portfolio levels. Manage a business and grouping of reserves, applying sound actuarial judgment to evaluate reserve adequacy, volatility, uncertainty, and key drivers of change. Lead the selection, application, and documentation of actuarial methods and assumptions Assess incomplete, noisy, or changing data and determine when additional diagnostics, alternative methods, scenario analysis, or management judgment are needed. Monitor and interpret emerging experience, including severity, frequency, claim closure patterns, social inflation, large loss activity, litigation trends, reinsurance changes, exposure shifts, and claims-handling developments. Translate technical findings into clear, actionable recommendations for Commercial Lines, NWAG, Claims, Finance, Risk, Pricing, Underwriting, and Product leaders. Partner with Pricing, Underwriting, and Product teams to strengthen connectivity between reserving insights, rate adequacy, underwriting strategies, and portfolio management. Provide thought leadership on reserving practices, methodologies, assumptions, diagnostics, and emerging casualty trends. Help evolve reserving tools, data, and processes by partnering with Actuarial Modernization, Data, and Technology teams to improve automation, reproducibility, controls, and visualization.

Strong knowledge of P&C actuarial reserving techniques, particularly for long-tailed casualty lines such as General Liability and Umbrella. Demonstrated experience leading reserve studies and evaluating the adequacy of reserves for complex or multi-segment portfolios. Ability to combine quantitative analysis with actuarial judgment when data is incomplete, volatile, or affected by changing business conditions. Proficiency with actuarial and data tools such as Excel, SQL, R, Python, SAS, Arius, or similar platforms; experience with automation, reproducibility, and visualization is valued. Ability to challenge, refine, and clearly document assumptions, methodologies, and recommendations. Business and Collaboration Skills FCAS designation required P&C actuarial experience in commercial lines, casualty, reserving, or a closely related analytical area; experience with General Liability and Umbrella is a plus. Ability to work directly with business partners and serve as a thought leader on complex actuarial topics. Proven ability to communicate technical concepts clearly to non-actuarial audiences, both in writing and verbally. Strong relationship-building and collaboration skills across Actuarial, Claims, Finance, Risk, Pricing, Product, Underwriting, and Technology. Comfort presenting recommendations, responding to challenge, and influencing decisions with sound actuarial judgment. Demonstrated project leadership,