Senior Commercial Portfolio Underwriter

Commercial insurance is changing, and we're building something different.

At Admiral Business, we're creating a modern, data-led Commercial proposition that combines underwriting expertise, technology and customer insight to deliver better outcomes for brokers and customers alike.

As a core member of our Underwriting team, you'll partner closely with Pricing, Product and Data to shape underwriting strategy, influence product development and drive profitable portfolio growth. This isn't a traditional underwriting role focused solely on individual risks. You'll take ownership of portfolio performance, help define our underwriting appetite and play a key role in building a scalable Commercial proposition from the ground up.

We're not just growing a Commercial portfolio-we're building the future of Commercial insurance at Admiral.

As a core member of our Underwriting team, you'll help shape the decisions that define our products, underwriting strategy and long-term growth. By partnering with Pricing, Product and Data, you'll turn insight into action, balancing technical underwriting expertise with commercial thinking to create better outcomes for our customers, brokers and the business.

You’ll have the opportunity to influence far more than individual risks, helping build a smarter, more scalable underwriting capability that will support Admiral Business for years to come.

• Own the performance of a portfolio of UK Commercial Combined business, balancing growth, profitability and customer outcomes. (Primarily across Property & Casualty lines)
• Shape underwriting appetite, referral strategies and portfolio governance.
• Partner with Pricing to refine rating models, optimise pricing and improve portfolio performance.
• Work alongside Product to evolve our Commercial proposition, influencing product design and coverage enhancements.
• Use underwriting data, claims insight and market trends to identify opportunities and support strategic decision-making.
• Build and develop strong relationships with regional brokers, driving profitable and sustainable growth.
• Act as a technical expert within the team, supporting colleagues and helping to embed underwriting best practice.
• Help build a scalable, data-led underwriting capability that supports Admiral's long-term ambitions in the Commercial market.

You're more than an experienced Commercial Underwriter. You're commercially curious, enjoy solving complex problems and want to play a key role in shaping the future of Commercial insurance.

You’ll bring:

• Proven experience underwriting UK Commercial business, ideally across Commercial Package and/or SME products.
• Strong technical knowledge across Property & Casualty risks, with exposure to Professional Indemnity being an advantage.
• Experience working with Pricing, Data or Portfolio teams to analyse performance and inform underwriting strategy.
• Excellent underwriting judgement, balancing risk, pricing and commercial outcomes.
• A strong understanding of portfolio management and how underwriting decisions influence growth and profitability.
• Experience building and managing broker relationships.
• A good understanding of FCA regulation and the UK Commercial insurance market.
• Strong organisational skills, with the ability to manage multiple priorities.
• The confidence to thrive in a fast-paced, evolving environment where you'll have genuine ownership and autonomy.

Commercial insurance has remained largely unchanged for years. At Admiral Business, we’re doing things differently.

We’re combining the strength and stability of one of the UK’s leading insurers with the pace, ambition and mindset of a business that’s building for the future. By bringing together underwriting expertise, technology, data and customer insight, we’re creating a smarter Commercial proposition that’s designed around better outcomes for brokers, customers and our people.

Joining Admiral Business means becoming part of a collaborative team where expertise is valued, curiosity is encouraged and everyone has the opportunity to make an impact. Whether it’s building stronger broker relationships, using insight to…