Senior Development Underwriter/Manager – Construction & Casualty

Company: Arthur J. Gallagher & Co.
Apply for the Senior Development Underwriter/Manager – Construction & Casualty
Location: London
Job Description:

Overview

In this role you will lead the development and delivery of Pen Underwriting’s new Construction & Casualty business plan. You will build and convert profitable opportunities through broker relationships, negotiate facilities, and act as a senior market-facing representative. You’ll underwrite complex risks, provide technical guidance, and mentor the team to achieve shared goals. This role offers a collaborative, growth-focused environment within a Gallagher-backed MGA shaping the future of underwriting.

Pay / Benefits

  • Competitive compensation
  • Comprehensive benefits programs
  • Career development opportunities and ongoing learning
  • Collaborative, people-first culture with accessible leadership
  • Meaningful work with global reach and local impact

Responsibilities

  • Lead the development and delivery of the new business plan for Construction & Casualty
  • Develop and convert opportunities through broker relationships
  • Negotiate and manage facilities in line with underwriting discipline and insurer appetite
  • Represent Pen’s Construction & Casualty proposition to the market
  • Underwrite complex risks and provide technical guidance to colleagues
  • Mentor and coach the team to achieve shared goals

Key requirements

  • Underwriting Construction & Casualty risks, including complex cases
  • Proven track record in developing and converting new business via brokers
  • Strong negotiation and relationship-building skills
  • Knowledge of delegated facilities and portfolio management
  • Commercial awareness and sound underwriting judgment
  • Leadership experience with mentoring/coaching
  • IT proficiency and commitment to personal development
  • CII/Dip CII qualification or progress towards it
  • relationship-building
  • leadership and mentoring
  • negotiation
  • knowledge of delegated facilities
  • portfolio management
  • underwriting systems and IT proficiency

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Posted: October 1st, 2026