Claims Assistant
About the job
- A high school diploma is required.
- One to three years of administrative or claims support experience is required; experience in an insurance environment is preferred.
- Knowledge of workers' compensation processes and regulatory requirements across multiple jurisdictions is a plus.
- Ability to manage jurisdiction-specific deadlines across a multi-state caseload is required.
- Prepare and complete jurisdictionally required benefit notices accurately within applicable regulatory timeframes, including same-day or within 24 hours of check issuance where required.
- Complete assigned claim tasks within five business days or sooner as business needs dictate, and meet same-day mailing deadlines for benefit notices.
- Verify documentation includes the language, forms, and attachments required by the applicable jurisdiction, and use the appropriate delivery method for claim notices.
- Assist with processing and tracking claim-related documentation; ensure required forms and supporting materials are complete, accurate, and routed on time.
- Pick up, open, date-stamp, and process incoming mail daily; index and route mail to the document management system the same day for assigned adjusters.
- Scan and distribute medical, translation, copy, and expert invoices to the designated bill-review vendor, and med-legal reports to examiners, managers, and the R&C Manager.
- Manage outgoing general and certified mail within daily deadlines; route undeliverable mail to the designated escalation inbox the same day; prepare printed documents for mailing and apply postage.
- Maintain office equipment readiness, including keeping copiers stocked with paper.
- Monitor the fax inbox regularly and distribute incoming documents to the appropriate adjusters.
- Respond to phone calls and emails by end of day and address after-hours communications promptly at the start of the next business day.
- Manage toll-free and general inquiry calls and direct callers to appropriate personnel.
- Log hearing notices, including mediation, trial, and lien conference notices, in the litigation calendar and litigation log.
- Assist with electronic filing and service processes, including managing new file setups and maintaining recurring diary entries in the claims system until claim closure.
- Participate in litigation committee meetings as scheduled.
- Provide documentation to defense counsel with transmittal letters through the designated secure file-sharing platform.
- Complete tracker forms for non-cashed checks within required timeframes; document communication attempts and escalate issues to examiners and management as appropriate.
- Maintain and submit delay logs, including permanent disability delays where applicable, to management on a regular schedule.
- Support daily task tracking and ensure timely completion of assigned work.
- Process subpoenas of records through the designated records-request platform.
- Coordinate with vendors and internal stakeholders for document handling and processing.
- Provide phone coverage shared among Claims Assistants, support managers with assigned special projects, and collaborate with adjusters and team members to maintain workflow efficiency and alignment.
- Maintain organization and prioritization across high-volume, time-sensitive tasks.
- Experience in an insurance environment.
- An Associate's or Bachelor's degree.
- Knowledge of workers' compensation processes and regulatory requirements across multiple jurisdictions.
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
- September 29, 2026 Aguilar hire deepens E&S property capability and broker relationships.
- August 2026 Botkin promotion exports MSIG USA underwriting discipline across MS&AD globally.
- February and July 2026 IFC and DEG deals expand fee-like specialty volume fast.
What critics are saying
- Rapid hiring of Brodzinski, Aguilar, and Dougherty risks integration friction in 2026.
- E&S property faces entrenched rivals like Liberty Mutual, AXA XL, and Ascot.
- Large credit and surety bets amplify accumulation losses; a bad cycle could cripple growth.
What makes MSIG USA unique
- MSIG USA leverages MS&AD's A+ balance sheet and 350-year underwriting heritage in 2026.
- June 2026 Celent recognized MSIG USA for data, analytics, and AI underwriting.
- MSIG USA launched Surety on August 25, 2026, extending specialty breadth quickly.
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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 names Oscar Aguilar as Head of E&S Property. 30th September 2026 - Author: Saumya Jain - MSIG USA, the US specialty insurance arm of the global MS&AD Insurance Group, has appointed Oscar Aguilar as Head of Excess and Surplus (E&S) Property. In his new role, Aguilar will lead the strategy and develop MSIG USA's E&S property business, focused on disciplined underwriting, portfolio performance, and sustainable growth. He will also work closely with underwriting and distribution teams to build capabilities catering to the evolving needs of brokers and clients while leveraging data and technology. Aguilar has over 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. He also has expertise in retail and wholesale distribution, primary and excess property, facultative reinsurance, and middle-market and large commercial accounts. Most recently, Aguilar served at Liberty Mutual Insurance as Senior Vice President (SVP) and National Manager for major accounts in property, shared and layered. Previously, he led Liberty Mutual's US retail property 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 SVP at Brit Insurance, leading E&S property underwriting and support teams responsible for building a profitable portfolio, developing talent and advancing product capabilities. He also held underwriting and senior roles at Maiden Reinsurance North America, GMAC RE, SRO Napa, St. Paul Companies and Sherwood Insurance. Peter McKenna, Chief Executive Officer, MSIG USA, commented on the appointment, "Oscar brings the depth of underwriting expertise and market perspective that are essential to building a differentiated E&S property business. "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."
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.