Underwriter - US Casualty

MS Amlin; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading (re)insurer in London seeks an ambitious Underwriter to manage the US Casualty portfolio. Responsibilities include underwriting decisions across diverse business lines, forging partnerships with MGAs, and ensuring compliance with business ethics. The ideal candidate has expertise in US Casualty lines, strong negotiation skills, and excellent communication abilities. The position offers a competitive salary, performance-related bonuses, and a hybrid working model, requiring a minimum of four days a week in the London office.

Benefits

Competitive base salary

Performance-related discretionary bonus

Employee benefits

Qualifications

• Good knowledge and underwriting expertise, ideally within US Casualty lines.
• Experience with Delegated Underwriting Authority (DUA) or MGA business is highly desirable.
• Ability to effectively influence and strong negotiation skills.

Responsibilities

• Manage and strategically underwrite a diverse US Casualty portfolio.
• Develop collaborative partnerships with US MGA partners.
• Analyse the portfolio to identify trends and develop opportunities.

Skills

Underwriting expertise

Negotiation skills

Communication skills

Problem-solving skills

Attention to detail

Financial acumen

Job description

Role : Underwriter - US Casualty

Location : London

Position type : Full time, permanent (minimum 4 days a week in the London office)

We are looking for an ambitious and dynamic Underwriter to join our leading US Casualty team. You will be a key member of the team responsible for the strategic and day-to-day management of the portfolio.

About The Role

What you’ll spend your time doing : Here’s a snapshot of some of the key parts of the job :

• Play a pivotal role in the technical underwriting and strategic management of our US Casualty portfolio, which includes both Delegated Authority & Open Market business, making sound, long‑term decisions on portfolios covering a diverse mix of General Liability, E&O, Medical Malpractice and Niche Auto business.
• Forge deep, collaborative partnerships with our specialist MGA partners across the US. This is a relationship‑driven role that requires regular travel to the US to meet with coverholders, attend conferences and conduct underwriting audits.
• Act as a key member of a close‑knit and empowered team of four, contributing to a collaborative culture through active participation in underwriting meetings, peer review, and the sharing of market insights to achieve our collective goals.
• Analyse the portfolio in detail to identify trends, new opportunities, and strategic adjustments, developing a deep commercial acumen and specialist expertise in the US Casualty market.
• Understand and negotiate binder agreements and policy wordings in line with corporate standards.
• Drive the partner experience through the efficient oversight of issues raised including product design, liaison and claims management.

Compliance and Risk Management

• Conduct your role in accordance with the Company’s Business Ethics policy and all regulated entities as appropriate.
• Manage your book of business so that it complies with relevant risk, regulatory and legal requirements and wider company policies.

Management Information

• Play an active role in the regular underwriting meetings.
• Ensure the risk entry system is meticulously maintained.
• Produce appropriate and accurate class reports as necessary.
• Review underwriting figures on a regular basis in order that unusual trends and / or adverse movements may be dealt with by appropriate action.
• Monitor premium payments and follow up as necessary.

About You

• Good knowledge and underwriting expertise, ideally within US Casualty lines (General Liability, Professional Indemnity, or Medical Malpractice).
• Experience with or a strong understanding of Delegated Underwriting Authority (DUA) / MGA business is highly desirable.
• Ability to effectively influence and strong negotiation skills.
• Excellent communication and relationship‑building skills.
• Sound financial and commercial acumen.
• Possess high attention to detail and accuracy.
• Strong problem solving skills.

What Can You Expect From Us?

As well as a competitive base salary and performance related discretionary bonus, here is a link to our employee benefits - Benefits of working at MS Amlin | MS Amlin

Hybrid Working

At MS Amlin we operate a hybrid working model to empower our people with flexibility to blend where they work. We value collaboration and believe that we work better together, our teams typically do 3 days a week in the office.

About MS Amlin

MS Amlin is a leading (re)insurer and part of the global MS&A Group, with operations across Lloyd’s of London, the Middle East, and Asia Pacific. With over 120 years of experience, we support businesses facing complex and demanding risks, providing continuity in an uncertain world. Our expertise covers Property, Casualty, Marine, Crisis Management, Natural Resources and Reinsurance, backed by strong underwriting capabilities and deep sector knowledge. At the core of our claims service is TRUST - Transparency, Responsiveness, Understanding, Solution‑driven thinking, and Technical expertise. This defines how we manage claims and build lasting relationships.

DE&I at MS Amlin

We will build a workplace where all talent is welcomed, and everyone has the opportunity to influence how the business works. We have dedicated employee resource groups that support our Diversity, Equity, and Inclusion (DE&I) goals.

MS Amlin is proud to be one of the founding partners of Lloyd’s Inclusive Futures programme which aims to get more Black and ethnically diverse people into the insurance industry - supporting them all the way from the classroom to the boardroom. Visit this link (Inclusive Futures Impact Report) to find out more about the programme and its aims and achievements so far.