Underwriting Assistant, Multiline Support

Sompo; Sydney; On-site; AUD 60,000 - 90,000; Full time

Job summary

Sompo International Holdings Ltd. is expanding its underwriting capabilities in Australia and seeks an Underwriting Assistant to support its Sydney-based team.

You will work closely with underwriters, operations, and external partners to ensure the underwriting lifecycle runs smoothly and data quality remains high across multiple lines of business. The role targets individuals with experience in commercial insurance, who want broader responsibilities, exposure to underwriting decisions, and a

Qualifications

• 5 years’ experience as an Underwriting Assistant, Operations Analyst, or similar role within commercial insurance.
• Strong understanding of underwriting processes across policy lifecycle (submission to binding).
• High attention to detail combined with strong organizational capability.
• Confidence to engage and challenge constructively with underwriters.
• Strong Excel and data handling capabilities.
• Ability to operate in a fast‑paced, evolving environment.

Responsibilities

• Partner closely with underwriters to support new business and renewal underwriting activities.
• Prepare and manage submissions, ensuring completeness and data accuracy.
• Maintain and enhance underwriting logs and tracking tools to support pipeline visibility.
• Assist in reviewing pricing outputs and flagging inconsistencies.
• Prepare and issue policy documentation, endorsements, and invoices.
• Ensure accurate entry and maintenance of risks within policy administration systems.
• Support renewal preparation, including reporting and client documentation.
• Contribute to building an efficient and scalable underwriting support framework for the Australia platform.

Skills

Excel

Data handling

Detail orientation

Underwriting process

Tools

Policy administration systems

Job description

Sompo International Holdings Ltd. (Sompo International) is a specialty provider of property and casualty insurance and reinsurance, established in March 2017 as the result of the acquisition of Endurance Specialty Holdings Ltd. by Sompo Holdings Ltd. (Sompo).

Sompo's core business encompasses one of the largest property and casualty insurance groups in the Japanese domestic market. In addition, Sompo is engaged in the provision of insurance services as well as other related services through its global network of businesses operating in 32 countries around the world.

Sompo International is the international operation and a wholly owned subsidiary of Sompo, which trades on the Tokyo Stock Exchange. Through our operating subsidiaries, Sompo International underwrites agriculture, professional lines, property, marine and energy, and casualty and other specialty lines of insurance and catastrophe, property, casualty, professional lines, weather risk and specialty lines of reinsurance.

As a leading global provider of insurance and reinsurance, we recognize that our success is derived directly from those who matter most: our people. Sompo International’s headquarters is in Bermuda and we currently have offices in the United States, the United Kingdom, Continental Europe, and Asia. At Sompo International, a shared commitment to integrity, teamwork, agility, execution, and excellence define our culture, and we strive to create exceptional value for our clients and shareholders and maintain Sompo International as a desirable place to work.

We are expanding our underwriting capabilities in Australia and accelerating business growth across multiline portfolios. This is more than a traditional underwriting assistant role — it is an opportunity to shape how underwriting support is delivered, gain meaningful exposure to underwriting decisions, and develop a long‑term career pathway within a global insurance platform.

As an Underwriting Assistant, you will play a critical role in supporting our underwriting teams across multiple lines of business. You will help ensure seamless execution of the underwriting lifecycle while contributing to the scalability and effectiveness of our Australian operations.

You will work closely with underwriters, operations, and external partners — with visibility across the full underwriting process.

This role is ideal for candidates currently working in commercial insurance environments who are looking to:

• Take on broader responsibilities beyond administration


• Gain closer exposure to underwriting and pricing


• Build a pathway toward becoming an underwriter

Responsibilities include:

• Partner closely with underwriters to support new business and renewal underwriting activities


• Prepare and manage submissions, ensuring completeness and data accuracy


• Maintain and enhance underwriting logs and tracking tools to support pipeline visibility


• Assist in reviewing pricing outputs and flagging inconsistencies

Policy & Documentation Management

• Prepare and issue policy documentation, endorsements, and invoices


• Ensure accurate entry and maintenance of risks within policy administration systems


• Support renewal preparation, including reporting and client documentation

Operational Excellence & Framework Building

• Contribute to building an efficient and scalable underwriting support framework for the growing Australia platform


• Identify process improvements and support workflow optimization across teams


• Ensure strong data discipline to support portfolio insights and reporting

Compliance & Governance

• Execute sanction screening and ensure adherence to regulatory and internal audit requirements


• Maintain high‑quality electronic file documentation aligned with compliance standards

Stakeholder Coordination

• Liaise with internal underwriting teams, shared services, and external vendors


• Support multinational and MGA‑related processes as required


• Assist in reconciling outsourced service provider outputs and maintaining data accuracy

What We Are Looking For

We are seeking candidates who are already operating within commercial insurance environments and are ready to step into a more impactful role.

• 5 years’ experience as an Underwriting Assistant, Operations Analyst, or similar role within commercial insurance


• Strong understanding of underwriting processes across policy lifecycle (submission to binding)


• High attention to detail combined with strong organizational capability


• Confidence to engage and challenge constructively with underwriters


• Strong Excel and data handling capabilities


• Ability to operate in a fast‑paced, evolving environment