Actuary - Financial Projection Modeling (Modeling Center of Excellence) (BOSTON)

The Opportunity

As the Actuary for Financial Projection Modeling, you’ll join the Modeling Center of Excellence (COE)—the team powering enterprise‑wide insights across FP&A, ALM, ERM, Treasury, and Capital Management. You’ll take ownership of the projection models leaders rely on, shaping financial outcomes across GAAP, Statutory, and economic bases. Your work will influence how risk is evaluated, capital is deployed, and strategy is set. This is a high‑visibility, high‑impact role for an actuary ready to make a real mark at enterprise scale.

The Team

The team operates as a high‑impact Modeling Center of Excellence, bringing together advanced modeling expertise, strong business partnership, and technical innovation. The team collaborates closely across finance, actuarial, and enterprise stakeholders to translate complex challenges into scalable, data‑driven solutions. Known for blending deep quantitative rigor with practical application, the group sets consistent modeling standards while continuously evolving methodologies. Team members are empowered to influence enterprise decisions through thoughtful analysis and forward‑looking insights. This environment is ideal for professionals who thrive at the intersection of technical excellence, collaboration, and strategic impact.

The Impact
As the Actuary for Financial Projection Modeling, you will play a critical role on a highly visible and innovative team. This role is ideal for a results‑driven actuary who thrives as a subject‑matter expert in actuarial modeling platforms such as FIS Prophet (and/or GGY AXIS). You will have deep, hands‑on ownership of model development, execution, and governance, directly influence key financial projections and decision‑make. Leveraging your technical expertise and leadership mindset, you will help strengthen modeling capabilities, consistency, and scalability across the organization. This is a unique opportunity to combine technical mastery with meaningful business impact in a fast‑evolving modeling environment.

Actuarial Modeling & Execution 

• Serve as the SME for Prophet or GGY Axis actuarial models, including architecture, coding standards, assumptions implementation, and performance optimization. 
• Design, build, and enhance actuarial projection models supporting forecasting, capital planning, ALM, stress testing, and management reporting. 
• Execute model runs across GAAP, Statutory, and economic bases; validate results and investigate drivers and variances. 
• Troubleshoot complex modeling issues and support post-production and ad-hoc model requests. 

Governance & Controls 

• Implement and maintain modeling governance standards including documentation, version control, testing, audit trails, and reproducible execution. 
• Partner with Assumptions and Experience Studies teams to implement approved assumption changes and quantify impacts. 
• Perform model testing, regression testing, UAT support, and model validation activities. 
• Support model governance and model risk management, including documentation of methodologies, controls and limitations 

Collaboration & Technology 

• Collaborate with FP&A, Valuation, ERM, Treasury, Investment Management, and Technology teams to translate business needs into modeling solutions. 
• Act as a trusted advisor on model capabilities, limitations, and appropriate use of outputs. 
• Partner with Enterprise Technology teams on Prophet system maintenance, access, infrastructure, and scalability initiatives. 

The Minimum Qualifications

• Bachelor’s degree in Mathematics, Actuarial Science, Finance, Computer/Data Science, or a related discipline
• 5+ years of progressive actuarial experience within insurance, risk, or financial services
• ASA Designation
• 2+ years using actuarial projection platforms such as FIS Prophet, GGY AXIS, or comparable tools
• 3+ years of experience supporting life insurance or annuity products
• 2+ years of experience producing, validating, and analyzing projections across GAAP, Statutory, and economic bases
• 2+ years’ experience in programming languages such as Python, R or Java

The Ideal Qualifications

• FSA designation
• Experience with C++
• Exposure to actuarial projection methodologies
• Experience supporting enterprise use cases such as forecasting, capital planning, ALM, or ERM
• Familiarity with modeling governance frameworks, model risk management, and audit expectations
• Experience with cloud‑based or high‑performance actuarial computing environments
• Demonstrated ability to collaborate effectively within a matrixed, cross‑functional team environment

What You Can Expect at MassMutual
MassMutual offers the opportunity to do meaningful work within a purpose-driven organization that values long-term impact over short-term outcomes. In this role, you can expect:

• Clear areas of ownership and accountability, with work that connects directly to company and customer outcomes 
• A collaborative environment where perspectives are welcomed
• Access to learning, development, and internal networks that support continuous growth and skill-building over time 
• Employee-led communities and forums that foster connection, learning, and inclusion across the organization 
• A culture grounded in integrity, responsibility, and stewardship—supported by a company with a strong legacy and a future-focused mindset

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MassMutual is an equal employment opportunity employer. We welcome all persons to apply.

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