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Posted 06 August, 2026

Marine & Energy Treaty Reinsurance Underwriter

Mapfre Re
City of London, ENG, GB Full Time

Job Description

In Mapfre Re, the reinsurance company of Mapfre Group, we are looking for a Marine & Energy Treaty Reinsurance Underwriter to join our London office.

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This role offers the opportunity to work across a diverse and international portfolio, contributing to the profitable growth of the business while actively participating in portfolio management, underwriting strategy, and market development.

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The position suits candidates with experience in reinsurance, or broking within Marine lines, looking to further develop their technical and commercial underwriting expertise in a global environment.

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Key Responsibilitie

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  • Underwrite and manage a portfolio of Marine & Energy treaty reinsurance business (including proportional and non-proportional structures)
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  • Analyse submissions, assess exposures, and determine appropriate pricing, capacity, and terms & conditions
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  • Negotiate treaty terms, conditions and wordings with cedents and brokers
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  • Contribute to the definition and execution of underwriting and portfolio strategies
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  • Monitor portfolio performance and propose corrective actions where needed
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  • Identify and develop new business opportunities across international markets
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  • Build and maintain strong relationships with brokers and clients
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  • Stay up to date with market trends in Marine & Energy lines
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Requiremen

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  • Around 5+ years of experience in reinsurance, ideally in Marine underwriting or related role
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  • Experience in Marine & Energy lines (Cargo, Hull, Liability, Energy
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  • Demonstrate an ability to work closely with head office
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  • Background in reinsurance underwriting, or broking will be considered
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  • Understanding of treaty structures (proportional and/or excess of loss
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  • Strong analytical, negotiation, and communication skills
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  • Experience working with brokers and/or clients in international market
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  • Fluent in Spanish is a plus
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What we offer

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  • Opportunity to join a leading global reinsurer with strong international presence
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  • International and collaborative environment
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  • Career development within underwriting
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