Senior Casualty Treaty Reinsurance Underwriter

One80

2d•$200,000 - $300,000

About The Position

As a Senior Casualty Treaty Reinsurance Underwriter, you will work closely with key internal and external stakeholders, including cedents, brokers, and actuarial teams, to develop tailored reinsurance solutions. You will also play a critical role in market development, risk management, and portfolio optimization. One80 Intermediaries is a privately held firm with offices throughout the US and Canada. As a leading insurance wholesaler and program manager, One80 offers placement services and binding authority for property and casualty, life, travel/accident and health, affinity and administrative services, and warranty business. Launched just four years ago, One80 Intermediaries has grown to be one of the largest intermediaries in the United States. In 2024, One80 Intermediaries was ranked the 14th largest broker in the U.S. by Business Insurance. In 2025, One80 Intermediaries earned the Great Place To Work® Certification™ for the second consecutive year. One80 Intermediaries has joined Brown & Brown, and teams at both companies are growing. One80 Intermediaries offers exclusive programs and in-house binding authority for property & casualty, financial lines, personal lines, life insurance, medical stop loss risks, travel/accident and health, executive benefits, affinity business and warranty coverage. We look for individuals who embrace our culture, thrive in a collaborative environment, are driven to grow and succeed, and are committed to always doing what is right. With a unique culture built on integrity, superior capabilities and grit, we value teamwork, trust and courage. We think of ourselves as a team, so we have teammates-not employees, and leaders-not managers. Everything we do is about the greater “WE”-never “me.” While diverse in abilities and experience, we are all connected through our core values, a commitment to our local communities and a shared mission-always doing what is best for our customers.

Requirements

Bachelor’s degree in business, finance, actuarial science, or a related field.
Extensive experience (15+ years preferred) in casualty and workers’ compensation reinsurance underwriting.
In-depth knowledge of casualty insurance products and underwriting principles.
Exceptional negotiation and communication skills to build and maintain relationships with key stakeholders.

Responsibilities

Evaluate and underwrite new and renewal casualty reinsurance treaties, assessing risk exposures, pricing, and terms.
Develop and implement underwriting standards and best practices to maintain portfolio profitability.
Manage a portfolio of casualty reinsurance treaties, ensuring alignment with profitability and growth objectives.
Conduct in-depth portfolio analysis to identify opportunities for optimization and diversification.
Assess and manage treaty-related risks, developing and executing effective risk mitigation strategies.
Ensure compliance with company policies, regulatory requirements, and underwriting best practices.