Senior Catastrophe Risk & Exposure Analytics Lead

Aon plc; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

A senior exposure management analyst at Aon plc will blend catastrophe modelling, portfolio analytics and client engagement to support underwriters in risk and capacity decisions. You will monitor exposures, run MI packs and drive data quality initiatives across multiple portfolios.

You’ll collaborate with underwriting teams, portfolio managers and brokers to interpret model outputs, test new methods, and deliver decision-support dashboards and reports that improve portfolio performance and

Qualifications

• Experience in exposure management, catastrophe modelling, portfolio analytics or a similar insurance-related field.
• Strong understanding of natural catastrophe risk and reinsurance structures.
• Experience using Touchstone or comparable modelling platforms.
• Advanced analytical, problem-solving, and Excel skills, with experience handling large datasets.
• Strong communication and collaborator management skills, with the ability to present technical findings clearly.
• Excellent organisational skills, attention to detail, and the ability to prioritise various tasks.
• Experience with SQL, Python, Databricks, cloud-based data solutions, or Power BI.
• Knowledge of portfolio monitoring, aggregate management, delegated authority, and facultative portfolios.
• Degree or equivalent experience in a quantitative, technical, or related field.
• Professional qualifications in catastrophe modelling or insurance are advantageous.

Responsibilities

• Interpret catastrophe model outputs and marginal impact assessments for pre-bind risks.
• Monitor accumulations against utilisation and capacity.
• Support portfolio steering through reporting and monitoring.
• Produce monthly variance reports which review geocoding, exposure attributes and assumptions and impact on results.
• Assess and explain impacts from vendor model updates. Test and validate new modelling methods and analytics.
• Deliver detailed event response analysis to internal collaborators and externally to carriers to identify impacted accounts and loss potential.
• Validate exposure data from carriers, underwriters and brokers.
• Maintain and improve exposure data standards.
• Investigate and resolve data anomalies.
• Produce portfolio reports and MI packs.
• Develop decision‑support dashboards and analytics.
• Present findings to underwriters, portfolio managers, and senior collaborators.
• Deliver ad hoc analysis for central initiatives.
• Provide insights that improve underwriting and portfolio performance.
• Refine workflows and operational performance.
• Gather requirements and test and implement new systems and workflows.
• Embed standard procedures and support continuous improvement projects.

Skills

Exposure management

Catastrophe modelling

Portfolio analytics

Excel

SQL

Python

Power BI

Data quality

Communication

Education

Degree in a quantitative/technical field

Cat modelling certification (advantageous)

Tools

Touchstone

Databricks

Power BI

Python

SQL

Job description

A senior exposure management analyst at Aon plc will blend catastrophe modelling, portfolio analytics and client engagement to support underwriters in risk and capacity decisions. You will monitor exposures, run MI packs and drive data quality initiatives across multiple portfolios.

You’ll collaborate with underwriting teams, portfolio managers and brokers to interpret model outputs, test new methods, and deliver decision-support dashboards and reports that improve portfolio performance and