Senior Portfolio Manager

This role is responsible for embedding portfolio management as a core discipline across the London Market business by leading the portfolio management business partnering team. Responsibilities include integrating segmentation into underwriting, discovering new methods and data for performance analysis and leading on pricing model algorithm development and calibration for all pricing models, with the goal of driving underwriting strategy and decision making.

You’ll collaborate closely with the rest of the International Portfolio Analytics team, who leverage cutting-edge advanced analytics, data management, business intelligence, and technical pricing implementation to deliver market-leading programmes and technologies. We’re all about people | We win together | We strive for better | We enjoy the everyday | We think further

What you’ll be doing :

Lead portfolio performance insights

Help to drive the pricing and portfolio management agenda for the London division, ensuring alignment with underwriting strategy and broader business objectives.

Provide actionable, data-led insights to support underwriting decisions and improve portfolio profitability.

Partner closely with underwriting leadership

Act as a trusted advisor to Managing Directors and Underwriters, supporting them in actively handling their portfolios.

Challenge and improve underwriting strategy through robust analysis, recommendations, and performance monitoring.

Own and evolve pricing capability

Contribute to the calibration, development, and continuous refinement of pricing models across relevant classes.

Ensure models are technically robust, commercially relevant, and aligned with portfolio performance and risk appetite.

Monitor and improve performance

Track key performance drivers at a granular (class/segment) level across the International portfolio, including both open market and delegated business.

Identify trends, risks, and opportunities, and drive targeted actions to improve performance.

Deliver business planning and performance governance

Support the analytical direction of Quarterly Business Reviews (QBRs), ensuring clear linkage between plans, performance, and actions.

Support and develop the quarterly business planning process, with ongoing monitoring against plan.

Develop insight-led tools and analytics

Build and deliver advanced analytics, pricing tools, and dashboards to enable more effective underwriting decisions.

Champion the use of data, analytics, and automation across the underwriting and portfolio management processes.

Collaborate across functions

Work closely with actuarial, underwriting, claims, data/IT, and delegated teams to deliver coordinated solutions and address business challenges.

Key

Skills:

Strong London Market experience

Deep understanding of the London Market, with experience across specialty lines and a clear grasp of underwriting dynamics, portfolio performance drivers, and market practices.

Advanced pricing and actuarial expertise

Strong technical grounding in pricing, with hands-on experience developing, calibrating, and refining rating models.

Able to apply actuarial judgement to translate model outputs into clear, commercially relevant recommendations.

Technical and data capability

Advanced Excel skills, with the ability to manipulate and analyse large, sophisticated datasets.

Proficiency in SQL for data extraction and analysis, with Python experience for modelling, analytics, and automation helpful.

Stakeholder engagement and influence

Proven track record to work closely with underwriters and senior stakeholders, providing insight, challenge, and support to drive better portfolio and pricing decisions.

Strong communication skills

Able to clearly articulate complex technical concepts to non-technical audiences,…