Actuarial Analyst
Thimble
IT
United States
Posted on Jan 14, 2026
About Us
Thimble is a leading insurtech platform for small business customers and agents. Thimble allows customers to quickly get insurance coverage by the job, month or year using its award-winning app, website, or over the phone.
Founded by serial entrepreneurs, Thimble works with a variety of carriers to bring the best insurance solutions to small businesses, brokers and agents. Since it was founded, Thimble has delivered more than 170,000 policies to small businesses across the United States.
Thimble was acquired by Arch Insurance, a unit of Arch Capital Group Ltd. (Nasdaq: ACGL), a publicly listed Bermuda exempted company with approximately $24.3 billion in capital at March 31, 2025. Arch, which is part of the S&P 500 Index, provides insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries.
Thimble's innovative culture and technical expertise are an incredible addition to Arch Capital’s portfolio of offerings. The acquisition expands Arch’s suite of digital solutions for small business customers and brokers. Thimble will remain a separate subsidiary, working closely with the Arch Group team.
For more information, visit thimble.com.
Our Values
Our unique culture is built around our six core values:
Think Wild, Act Tame
Be relentlessly creative. Question everything. Get to know the rules so well, you can use them in new ways. Be the industry’s compliant radicals.
Green Means GO
Act. Move forward. Learn. You can only make a decision based on the best information you have – so make it.
Own Every Detail
Be ruthlessly precise. Disciplined. Sweat the small stuff.
Simplify, Simplify, Simplify
Get to the point. Make it crystal clear. Cut everything else. It’s our job to make insurance easy – however hard that is for us.
Every Moment Counts
Show up early and ready. Deliver on time or before. Make the most of your time, so others can make the most of theirs.
Stay Human
Treat every person, and their ideas, with respect. Cherish diversity.
About the Role
Thimble is seeking a Property & Casualty Actuarial Analyst to assist in the development, implementation, and offering of insurance products and to support the pricing of these insurance products. This position will report to the Actuarial Director. The ideal candidate will have at least 3 years of actuarial pricing experience for commercial lines of business and possess the technical skills required to work with the data.
Responsibilities
- Develop accurate and timely actuarial analyses and rate level indications, including performing actuarial data adjustments for on-leveling, trend, and development and incorporating credibility.
- Identify trends and opportunities to assist in making pricing recommendations to the leadership team that promote profitability and growth.
- Develop actuarial support for rate filings and regulatory responses.
- Monitor and review Verisk/ISO Circulars for adoption opportunities and conduct market research and analysis.
- Provide necessary reporting to external stakeholders, including regulators, insurance/reinsurance partners, TPAs, and others.
- Analyze and provide input on contracts surrounding profit-sharing agreements, TPA agreements, etc.
- Develop, maintain, and validate/test databases and rating engines.
- Review analyses and processes to improve accuracy, efficiency, and transparency.
- Maintain strong controls and documentation around pricing assumptions, processes, methods, and results, in line with professional standards of practice and regulatory requirements.
- Collaborate cross-functionally with the underwriting, engineering, data, product, finance, and marketing teams by providing actuarial perspective, reports, information, and insights.
What We're Looking For
- 3+ years in an actuarial pricing role for various commercial lines, particularly those commonly found in small business or package products.
- Familiarity with Verisk/ISO Circulars and other Verisk/ISO product offerings.
- Excel and Power BI skills and programming capabilities in SQL, R, or Python.
- Understanding of rate review processes and regulatory filings.
- Exceptional attention to detail and organizational skills; able to manage multiple concurrent projects.
- Strong interpersonal and communication skills and the ability to work cross functionally.
- Inquisitive and intellectually curious.
What Success Looks Like
- Regarding actuarial pricing, working independently and cross-functionally with all teams at Thimble to ensure that we are meeting all Objectives and Key Results (OKRs) while remaining compliant and profitable.
- Continued development and enhancement of the actuarial operations here at Thimble.
- Building and scaling actuarial analyses to provide accurate, timely, and insightful information to the Leadership team and others.
What You’ll Do in 30 Days
- Receive a warm welcome! Get to know all co-workers and the ins and outs of Thimble.
- Hear about Thimble’s interesting and exciting history.
- Discover all of Thimble’s product offerings and partners.
- Learn about the relevant Thimble internal systems, including but not limited to: Jira, Omni, Thimble intranet, etc.
- Learn about Thimble’s new rating engine for future development and maintenance purposes.
- Become familiar with the Thimble Business Program’s rates and rules manual, and its history.
- Review some of the monthly reports that are developed and the analyses that are conducted.
What You’ll Do in 60 Days
- Start working under the direction of the Actuarial Director to produce monthly and quarterly actuarial deliverables for internal and external parties.
- Begin working in the rating engine to become more familiar with the architecture, the flow, the premium calculations and logic, and the source inputs.
- Ponder and present any efficiencies discovered in the routine workflow, perhaps incorporating your excellent technical and programming skills.
What You’ll Do in 90 Days
- Gain more independence in your work as your Thimble knowledge expands.
- Build out and test additional state and coverage rating models in the rating engine.
- Assist in developing a filing strategy to incorporate program changes across all jurisdictions and begin work on filings.
- Work on special projects, as needed.
- Assist in making pricing recommendations based on actuarial analyses.
- Continue identifying areas of improvement to make sure we are conducting business in full actuarial compliance and in the most efficient and effective manner possible.
Thimbler Benefits & Perks!
-Fully remote company
-Thimble Fridays! (out of office at 12:00pm local time)
-Comprehensive health, vision, and dental coverage
-401(k) auto enrollment and matching (100% of the first 3% and 50% of the next 3%)
-PTO: 20 days vacation + 12 company-wide holidays + 8 floating days + 1 VTO (Volunteer Time Off) + unlimited sick time
-Parental Leave: 100% paid 12 weeks + 2 weeks gradual return
-Computer choice of Mac or PC
-Work from home setup reimbursement
-Monthly co-working space and/or child care reimbursement
-Monthly ClassPass credit
-Quarterly wellness reimbursement
-Other health & wellness perks including: One Medical, Teladoc, Talkspace, Kindbody, and Health Advocate
-Virtual events, happy hours, trivia, and fun!