Founding Actuarial Model Developer

Overview

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About Hyperexponential (hx): we’re building an AI-powered platform for critical decisions in pricing and risk in insurance. We enable faster, smarter decisions for insurers and are backed by a16z, Highland Europe, and Battery Ventures. We are scaling globally and seeking impact through innovative engineering and actuarial collaboration.

About The Model Development Team:
The team blends actuarial science and technology to unlock the full potential of hx Renew. Senior Model Developers are technical leaders who coach, guide, and ensure delivery excellence, and are people leaders who shape the team culture as hx expands globally. This is a founding position in our US Model Development team.

• Establish and scale the US Model Development team, defining culture, strategy, and delivery model to accelerate hx’s regional expansion.
• Partner with Sales to scope, design, and present transformation projects that increase win rates and long-term customer retention.
• Lead end-to-end hx Renew implementations, driving measurable improvements in pricing accuracy and operational efficiency.
• Apply a data-driven approach to prioritize project work, aligning delivery with areas of maximum customer ROI.
• Coach and mentor new team members and partner developers to build a high-performance, scalable culture.
• Develop reusable tools, frameworks, and processes that improve speed, predictability, and quality while embedding innovation into delivery.

• Delivered actuarial or pricing models in a P&C insurance or consulting context, ideally progressing toward CAS or IFoA qualifications.
• Built or scaled teams with demonstrated leadership in culture setting and coaching technical talent.
• Shipped production-grade Python solutions with modern development practices in an actuarial or insurance context.
• Led customer-facing projects, engaging with senior stakeholders on technical and commercial outcomes.
• Operated in professional services, insurtech, or fintech environments where implementation excellence was central to customer success.
• Demonstrated curiosity, experimentation, and ownership, balancing delivery innovation with commercial impact.

• You prefer to specialize narrowly in actuarial or coding roles and are not motivated by blending both disciplines.
• You avoid ambiguity or building from the ground up.
• You’re uncomfortable working directly with enterprise customers or in fast-paced professional services environments.

Compensation

• Salary Range: $137,500-$157,500
• Bonus/Variable: Up to 20% of base salary
• Equity: Equity across all roles; details provided by your talent partner
• The posted range represents typical compensation; actual offer is market-rate based and may consider qualifications and experience.

• $6000 training and conference budget
• Full medical, dental, vision coverage
• Mental health support via Spring Health and Rula
• Access to One Medical
• Flexible vacation policy
• Pet discounts, retirement plan (401K), and employee discounts

• Top-spec equipment, hackathons, lunch-and-learns, socials, and game nights
• Team meals, snacks, and a collaborative office environment
• Strong opportunities for personal development as we build something remarkable together

• Initial call with Talent team
• Manager interview with Customer Delivery Manager
• Skills Assessment with Senior Model Developers
• Values interview (ideally in person)
• Coffee chat with CEO & Co-Founder
• Offer extended after final steps

hx values diverse perspectives and is committed to an inclusive environment. We welcome applicants from all backgrounds and experiences and strive to build a workplace where everyone can thrive and grow.

If this opportunity resonates, apply or share it with your connections. Our talent team reviews all applications and provides feedback whenever possible. For more information and to view other opportunities, visit our careers page. Background checks will be conducted in compliance with governance policies, and all applicant data is handled in accordance with data protection regulations and our privacy policy.