Senior Casualty Underwriter - UK Regional

At Pen, we don’t just underwrite risk, we unlock possibility. We’re a dynamic underwriting and distribution business backed by the strength of Gallagher and powered by a belief that every challenge has a solution. With entrepreneurial energy, niche expertise, and a bold growth mindset, we’re transforming what it means to be an MGA in today’s insurance landscape. Whether you’re shaping new products, solving complex problems, or collaborating across teams, your ideas and initiative will help deliver smarter solutions for our clients—and move the industry forward. Here, agility meets stability. Creativity meets execution. And your career meets real opportunity. At Pen, we champion innovation, value accountability, and thrive on building something better together. If you’re looking to join a team that’s rewriting the future of underwriting, we’d love to hear from you.

Are you an experienced underwriter with a strong background in Construction and Casualty? Pen Underwriting is looking for a Senior Underwriter to join our team. You’ll play a key role in underwriting and managing new and existing accounts, using your expertise to provide a solid contribution towards income, profit & EBITDAC.

We welcome applications from candidates based anywhere in the UK.

Join us at Pen Underwriting and be part of a team that values expertise, collaboration, and growth

• Manage and grow a portfolio of renewal accounts, handling rating and adjustment queries.
• Explore new business opportunities to expand your client portfolio.
• Provide technical support on claim cover requests.
• Collaborate with brokers, insurers, and internal teams like Accounts and Claims.
• Review and approve referrals from Underwriters and Assistant Underwriters with precision.
• Mentor and train junior team members, sharing your expertise and setting a high standard.
• Analyse and interpret data to provide meaningful insights.
• Develop a deep understanding of Pen’s coverage offerings.
• Operate within your delegated underwriting authority and use our preferred insurance pool.

• Construction and Casualty underwriting experience.
• CII/Dip CII qualification or equivalent and have A-Level education or similar.
• Solid understanding of risk exposure and can assess complex situations with confidence.
• Strong negotiation and trading skills, ensuring great results for clients, brokers, Pen, and insurers.
• Skilled at servicing accounts and handling technical claim queries.
• Proactive, organised, and able to plan and prioritise renewals and new business opportunities.
• Clear communicator with excellent social skills, both with clients and colleagues.
• Strong numeracy, literacy, and attention to detail.
• Problem solver with a positive, can-do attitude.
• Team player who takes ownership, shares knowledge, and strives for the best outcomes.
• You’re eligible to work in the UK.

On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits.

Below are the minimum core benefits you’ll get, depending on your job level these benefits may improve:

• Minimum of 25 days holiday, plus bank holidays, and the option to ‘buy’ extra days
• Defined contribution pension scheme, which Gallagher will also contribute to
• Life insurance, which will pay 4x your basic annual salary, which you can top-up to 10x
• Income protection, we’ll cover up to 50% of your annual income, with options to top up
• Health cash plan or Private medical insurance

Other benefits include:

• Three fully paid volunteering days per year
• Employee Stock Purchase plan, offering company shares at a discount
• Share incentive plan, HMRC approved, tax effective, stock purchase plan
• Critical illness cover
• Discounted gym membership, with over 3,000 gyms nationally
• Season ticket loan
• Access to a discounted voucher portal to save money on your weekly shop or next big purchase
• Emergency back-up family care
• And many more…

We value inclusion and diversity

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organisation. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher is Disability Confident Committed. We have pledged to make sure our recruitment process is inclusive and accessible, in addition to supporting our existing employees with any long-term health conditions or disabilities.

We understand that applicants may have disabilities, if you do, you may find some parts of the recruitment process more challenging than others. Don’t worry, we’re here to help, however, we can only do this if you let us know.

Should you require reasonable adjustments to your application, please get in touch with [email protected] . If you’d prefer to speak on the phone, please request a call back, leaving details, so we get in touch.

Our employing entity, Arthur J. Gallagher Services (UK) Limited, is proud to be accredited as a Living Wage employer with the Living Wage Foundation. We are committed to diversity and opportunity for all and are opposed to any form of less favourable treatment on the grounds of gender or gender identity, marital status, civil partnership status, parental status, race, ethnicity, colour, nationality, disability, sexual orientation, religion/ belief, age and those with caring responsibilities.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non-conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer-employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.