Underwriting Assistant - Marine Underwriting
About the job
- A college degree with emphasis on insurance, business, or accounting is preferred.
- Three or more years of insurance or reinsurance company experience with emphasis on analytic functions in underwriting support, underwriting, and/or accounting is preferred.
- Working knowledge of rating and pricing models, insurance, and reinsurance for all lines of business.
- Understanding of the principles and processes for providing excellent customer service, including meeting established time and quality standards for internal and external customer satisfaction.
- Ability to perform each essential duty satisfactorily.
- Ability to effectively manage, organize, and prioritize multiple tasks.
- Collect and reconcile new and renewal submission information to prepare policy and account files for underwriter review in accordance with company underwriting guidelines and standards.
- Review and analyze account information for underwriting data, including exposures, loss information, driver information, financials, and loss control reports, and communicate with brokers to obtain missing information.
- Review, analyze, and accurately input financial and statistical information into appropriate systems for quote, pricing, policy, reinsurance, and endorsement processing.
- Maintain databases so systems accurately reflect updated account information and documentation in accordance with company underwriting guidelines.
- Interpret data and set up accounts in appropriate systems, often working directly with the underwriter.
- Produce quotes and binders for new and renewal accounts and policies, including gathering relevant account information and identifying proper forms and endorsements for policy construction.
- Complete reinsurance tasks in accordance with underwriting guidelines.
- Review and analyze accounts for reinsurance placement, organize information, input data into required systems, obtain required underwriting data from clients, and manage risk accounts from submission through applicable document issuance.
- Perform quality-control checks to ensure data accuracy and maximize the integrity, quality, and usability of information.
- Identify process and system improvement concepts and critical success factors for achieving strong results in Operations.
- Provide timely and professional customer service to internal and external customers, including underwriters, Operations, agents, and brokers.
- Respond to broker service requests for loss runs and endorsements, ensure required documentation is received, troubleshoot transaction-processing issues with Operations, and research and help resolve policy, account-status, rating, and billing inquiries.
- Participate in broker and agency visits and loss inspections as recommended by the underwriter.
- Order and retrieve Risk Engineering reports, review inspection reports, summarize key elements based on existing underwriting data, and follow up on recommendations to ensure compliance with MSIG risk-management standards.
- Enter data into the Cat Modeling Template and submit it to the Cat Modeling Team; analyze output for catastrophe management and underwriting decisions and provide the underwriter with base analysis such as flood-zone information.
- Process and issue mid-term premium and non-premium-bearing endorsement transactions within the applicable threshold and refer material-change endorsement requests to the appropriate underwriter for approval.
- Properly document all systems and account files within established due dates.
- A college degree with emphasis on insurance, business, or accounting.
- Three or more years of insurance or reinsurance company experience with emphasis on analytic functions in underwriting support, underwriting, and/or accounting.
About the company
MSIG USA provides commercial property and casualty insurance to U.S.-based and multinational businesses, with tailored coverage across property, casualty, marine, and financial lines (including D&O and cyber). It writes standard policies and specialized programs, and has recently established MSIG Specialty Insurance America to underwrite non-admitted business. A core part of its model is risk engineering, loss prevention, and in-house claims management (handling over 90% of claims directly) to deliver efficient service. The company differentiates itself through the backing of the MS&AD Insurance Group (a financially strong parent), a history of large-scale P&C capacity, and a focus on customized solutions for complex exposures. Its goal is to help organizations manage sophisticated risks across all 50 states, including multinational clients, by offering comprehensive coverage and proactive risk management.
Company Size
501-1,000
Company Stage
N/A
Total Funding
N/A
Headquarters
New York City, New York
Founded
N/A
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Simplify's Take
What believers are saying
- AM Best affirmed A+ ratings on June 5, 2026, supporting broker confidence.
- MSIG USA launched surety on August 25, 2026, opening bond demand from infrastructure clients.
- September 29, 2026 added Oscar Aguilar, sharpening E&S property growth and wholesale distribution.
What critics are saying
- Oscar Aguilar's E&S build and Brodzinski's CUO mandate raise execution pressure in 2026.
- Rapid expansion into surety and E&S strains underwriting discipline if portfolio growth outruns controls.
- A severe U.S. catastrophe or specialty reserve miss could consume MS&AD support and damage brand confidence.
What makes MSIG USA unique
- MSIG USA leverages MS&AD's A+ capital, global reach, and 350-year underwriting heritage.
- Its 2026 E&S platform extends admitted, surplus, marine, financial lines, and political risk.
- In-house claims handling and data-driven specialty underwriting differentiate MSIG USA for complex commercial risks.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Health Savings Account/Flexible Spending Account
Hybrid Work Options
Wellness Program
401(k) Company Match
Profit Sharing
Tuition Reimbursement
Employee Discounts
Parental Leave
Company News
MSIG USA has appointed Oscar Aguilar as head of excess and surplus property. Aguilar brings over 20 years of underwriting and leadership experience in the property market, with expertise in E&S, shared and layered property, and complex commercial risks. Aguilar joins from Liberty Mutual Insurance, where he most recently served as senior vice president and national manager of major accounts property, shared and layered. He previously led US retail property for Liberty Mutual and spent six years at Ironshore Insurance managing wholesale property across the Western and South Central regions. In his new role, Aguilar will lead the strategy and development of MSIG USA's E&S property business, focusing on disciplined underwriting, portfolio performance and sustainable growth.
MSIG USA appoints Oscar Aguilar as head of excess and surplus property. Posted on September 29th, 2026 | Filed under Press Releases NEW YORK, Sept. 29, 2026 /PRNewswire/ - MSIG USA today announced the appointment of Oscar Aguilar as head of excess and surplus property. Aguilar brings more than two decades of underwriting and leadership experience in the property market, with deep expertise in E&S, shared and layered property, and complex commercial risks. Aguilar joins MSIG USA from Liberty Mutual Insurance, where he most recently served as senior vice president and national manager of major accounts property, shared and layered. He previously led U.S. retail property for Liberty Mutual and spent six years at Ironshore Insurance, where he managed wholesale property across the Western and South Central regions. Earlier in his career, Aguilar served as senior vice president at Brit Insurance, leading E&S property underwriting and support teams with responsibility for building a profitable portfolio, developing talent and advancing product capabilities. He also held underwriting and leadership roles at Maiden Reinsurance North America, GMAC RE, SRO Napa, St. Paul Companies and Sherwood Insurance. His experience spans retail and wholesale distribution, primary and excess property, facultative reinsurance, and middle-market and large commercial accounts. "Oscar brings the depth of underwriting expertise and market perspective that are essential to building a differentiated E&S property business," said Peter McKenna, CEO of MSIG USA. "He has spent his career navigating complex property risks while building strong relationships across both the retail and wholesale markets. That combination of technical discipline, market knowledge and leadership will be important as we expand our capabilities and create a platform that brokers can rely on for expertise, responsiveness and thoughtful solutions." As head of excess and surplus property, Aguilar will lead the strategy and development of MSIG USA's E&S property business, with a focus on disciplined underwriting, portfolio performance and sustainable growth. He will work closely with underwriting and distribution leadership to build capabilities that respond to the evolving needs of brokers and clients while leveraging data and technology to support more informed decision-making and efficient execution. Aguilar holds an MBA and a Bachelor of Science in business administration from California Coast University. About MSIG USA MSIG USA is the marketing term used to refer to MSIG Holdings (U.S.A.), Inc. ("MSIGH"), its insurance subsidiaries, and their manager. MSIGH's insurers are Mitsui Sumitomo Insurance Company of America, Mitsui Sumitomo Insurance USA Inc., MSIG Specialty Insurance USA Inc. and MSIG Specialty Insurance America, Inc. The insurers are managed by Mitsui Sumitomo Marine Management (U.S.A.), Inc. MSIGH is a subsidiary of MS&AD Insurance Group Holdings, Inc., one of the world's top P&C carriers with a 350-year heritage, A+, Class 15 ratings, and a global reach that spans 48 countries and regions. MSIG USA brings the financial strength, underwriting expertise, exceptional claims management, global footprint, and innovation necessary to offer commercial insurance solutions that address the unique risks businesses face in today's market. Its nationwide network of professionals provides responsive and personalized service for clients and brokers. The U.S.-based insurance subsidiaries are admitted in all P&C lines in all 50 states, the District of Columbia, and Puerto Rico. Not all insurers do business in all jurisdictions. Actual coverage is subject to the language of the policies as issued. To learn more, visit www.msigusa.com. SOURCE MSIG USA
MSIG USA chief underwriting officer Brian Botkin promoted to international chief underwriting officer for MS&AD. Aug 26, 2026, 09:17 ET NEW YORK, Aug. 26, 2026 /PRNewswire/ - MSIG USA today announced that Brian Botkin, chief underwriting officer of MSIG USA, has been promoted to international chief underwriting officer for MS&AD Insurance Group, expanding his leadership responsibilities across the organization's global insurance operations. Botkin has played an important role in MSIG USA's transformation and growth, leading enterprise underwriting strategy and advancing greater consistency, discipline and portfolio insight across the organization. As chief underwriting officer, he has worked closely with business leaders to align underwriting strategy with MSIG USA's growth objectives while advancing the use of data and analytics to support underwriting decisions. In his new role, Botkin will bring that experience to MS&AD's global operations, helping advance underwriting strategy, governance and portfolio management across markets. His appointment comes as MS&AD continues to expand its international specialty capabilities and further connect underwriting expertise across its global businesses. "Brian's promotion is a tremendous recognition of the leadership and impact he has demonstrated at MSIG USA," said Peter McKenna, chief executive officer of MSIG USA. "He has been instrumental in advancing our underwriting organization as we have grown, bringing greater rigor and insight to how we manage our portfolio while never losing sight of the importance of underwriting expertise and judgment. We are proud to see Brian take on this global role and know the perspective he has developed here in the U.S. will make an important contribution to MS&AD's continued growth." "Brian brings a deep understanding of specialty underwriting and the experience of operating in one of the world's most dynamic insurance markets," said Hironori Morimoto, Group Chief Global Officer, Senior Managing Executive Officer of MS&D. "In this expanded role, he will help connect underwriting expertise and best practices across our businesses, enabling us to bring greater consistency and insight to how we evaluate and manage risk globally." Botkin's promotion also reflects the increasingly important role MSIG USA plays within MS&AD's global strategy. As MSIG USA continues to build a market-leading, data-driven specialty insurer in the United States, sharing talent, expertise and capabilities across the broader organization creates opportunities to advance underwriting excellence and support sustainable growth across the Group. About MSIG USA MSIG USA is the marketing term used to refer to MSIG Holdings (U.S.A.), Inc. ("MSIGH"), its insurance subsidiaries, and their manager. MSIGH's insurers are Mitsui Sumitomo Insurance Company of America, Mitsui Sumitomo Insurance USA Inc., MSIG Specialty Insurance USA Inc. and MSIG Specialty Insurance America, Inc. The insurers are managed by Mitsui Sumitomo Marine Management (U.S.A.), Inc. MSIGH is a subsidiary of MS&AD Insurance Group Holdings, Inc., one of the world's top P&C carriers with a 350-year heritage, A+, Class 15 ratings, and a global reach that spans 48 countries and regions. MSIG USA brings the financial strength, underwriting expertise, exceptional claims management, global footprint, and innovation necessary to offer commercial insurance solutions that address the unique risks businesses face in today's market. Its nationwide network of professionals provides responsive and personalized service for clients and brokers. The U.S.-based insurance subsidiaries are admitted in all P&C lines in all 50 states, the District of Columbia, and Puerto Rico. Not all insurers do business in all jurisdictions. Actual coverage is subject to the language of the policies as issued. To learn more, visit www.msigusa.com. SOURCE MSIG USA
MSIG USA launches surety business. August 25, 2026 MSIG USA today announced the launch of its Surety business, offering Commercial and Commercial Contract Surety solutions to brokers and clients across the U.S. The launch brings together MSIG USA's A+, Class XV financial strength and global reach with specialized surety expertise and a data-driven approach to underwriting. MSIG USA is also a U.S. Treasury Listed Surety with a maximum underwriting limitation of $124,003,000 per bond, supporting its ability to meet the needs of organizations with a range of financial and contractual obligations. "The surety market continues to grow, creating an opportunity to respond to evolving needs from our brokers and their clients," said Daniel Riordan, SVP, Political Risk, Credit & Surety at MSIG USA. "Surety is also a natural extension of our Political Risk and Credit capabilities, building on our expertise in complex financial and contractual risks as we continue to expand our specialty business." The business is led by Patrick Dougherty, Head of Surety, who brings nearly two decades of experience across underwriting, distribution and business leadership. Dougherty joined MSIG USA after serving as Senior Director of Surety at Willis Towers Watson. Previously, he served as Head of Commercial Bond at AXA XL and held leadership roles at Nationwide Mutual Surety and Liberty Mutual Surety. Dougherty is joined by Doug Schmude, Underwriting Director; Matthew Cook, Underwriting Director; and Charles Busch, Underwriter, establishing a team with deep experience across commercial surety and underwriting. "As clients take on increasingly complex financial and contractual obligations, the role of a surety partner extends well beyond providing a bond," said Dougherty. "We want to understand where our clients are headed and bring together underwriting experience and data-driven insights to structure solutions that support their objectives and help them create opportunities for long-term growth." The Surety launch is part of MSIG USA's broader strategy to become a market-leading, data-driven specialty insurer. By expanding its capabilities across Political Risk, Credit and Surety, MSIG USA continues to build specialized solutions for organizations navigating increasingly complex financial and business environments.
MSIG USA has appointed Carrie Brodzinski as chief underwriting officer. She brings nearly 30 years of specialty underwriting and leadership experience to the role. Brodzinski joins from The Hartford, where she served as chief underwriting officer for Global Specialty since 2021. Her career includes senior underwriting leadership positions at AXA XL and AIG, as well as product leadership roles at Beazley, Travelers, Chubb, and Executive Risk. As chief underwriting officer, Brodzinski will lead MSIG USA's enterprise underwriting strategy across the company's specialty businesses. She will oversee underwriting performance, portfolio management, and the evolution of data and technology capabilities. Brodzinski earned a Juris Doctor and Bachelor of Science in marketing from the University of Connecticut.