Underwriter- Builders Risk

About MSIG Specialty Marine

MSIG Specialty Marine is a specialist marine MGA (coverholder) providing tailored insurance solutions across global markets. We combine multiple carrier options, giving us A-rated capital flexibility, and are backed by one of the largest teams of marine underwriters and claims specialists in Europe. This depth of expertise allows us to support clients with knowledge‑led underwriting, risk advisory, and claims insight. With approximately 250 specialists and one of the broadest product ranges in the market, we are recognised for our technical expertise, client focus, and solution‑driven approach. We aim to be a world‑class marine insurance partner, working closely with our clients to deliver innovative risk solutions and first‑class service from underwriting through to claims.

Position Overview

We are looking for an Underwriter Builders Risk to join our team in Rotterdam. This is a key role within a high‑performing and strategically important area of the business. You will be part of a strong, experienced team with an established market reputation, while also having the opportunity to develop your own expertise and impact. Depending on your experience and background, you will:

• Contribute to underwriting complex risks and supporting portfolio decisions
• Take increasing ownership of accounts and broker relationships over time
• Play a role in shaping portfolio development and profitable growth

This role is built around ownership and progression. You will be involved across the underwriting lifecycle from risk assessment and broker interaction through to portfolio management and development. There is real opportunity to grow your impact, build your expertise, and shape your position within the team.

Role in Practice

This role sits at the intersection of technical underwriting, commercial thinking, and relationship management. You won’t just assess risk, you will be reviewing complex projects, working closely with brokers, and contributing to decisions on what business makes sense for MSIG Specialty Marine to write. This is not a purely transactional role. You will be encouraged to apply judgement, challenge risk, and develop a commercial mindset. Support and guidance will be available, whilst also giving you the space to take ownership as you grow.

You will work on a broad range of shipbuilding risks at shipyards, on all kinds of vessels such as dredging, mega yachts, offshore, military and other special vessels. New building, repairs, conversions and with a growing attention towards energy related risks. The portfolio is highly international, with exposure to:

• The Netherlands, London/UK market
• Germany, France, Spain
• US/Canada and wider global markets
• Eastern Europe

This is a fast‑moving environment where you will:

• Navigate multiple priorities and deadlines
• Balance underwriting, administration, and client engagement
• Build confidence in decision‑making, even when information is incomplete

What You Will Be Doing

• Supporting and underwriting Builders’ Risk and Energy risks in line with appetite and guidelines
• Managing and developing a portfolio (or supporting portfolio management, depending on experience)
• Building and maintaining relationships with brokers and clients
• Conducting risk assessments using data, insight, and market knowledge
• Monitoring portfolio performance and supporting improvements
• Contributing to underwriting strategy and identifying opportunities
• Working closely with claims and internal teams to ensure alignment
• Representing MSIG Specialty Marine in the market

What We Are Looking For

• Experience background in marine insurance, underwriting, or a related field
• Exposure to Builders Risk, Hull, Machinery, Energy, or similar lines is beneficial but not essential
• Experience analysing or supporting complex risks
• Experience working with brokers, clients, or internal stakeholders
• We are also open to candidates from across the wider marine ecosystem (e.g. Broking, surveying, operations, legal), provided you understand how risk connects across the value chain and are motivated to develop within underwriting

Skills & Mindset

This role is suited to someone who brings curiosity, ownership, and a willingness to learn.

• Building your underwriting expertise and looking to take the next step, or bringing deeper experience and ready to take ownership and mentor others
• Proactive and solutions‑focused
• Commercially aware, with a developing or established sense of judgement
• Confident communicating with stakeholders (or keen to build this)
• Detail‑oriented with strong accuracy
• Comfortable working in a dynamic environment
• Open to learning and continuous improvement

Team & Culture

• Collaborative, open, and supportive
• Straightforward and transparent, with a focus on shared success
• Built on trust, ownership, and accountability
• High performing, with clear expectations and standards
• This is an environment where you are supported to grow, contribute, and build your career over time

Benefits

• 30 vacation days per year (based on a full‑time 40‑hour workweek)
• 13th‑month salary as an additional financial benefit
• Opportunity to lease a bike for sustainable commuting
• 50% contribution to additional health insurance
• Participation of bonus scheme
• Contribution towards sports facility memberships
• A dynamic work environment in the heart of Rotterdam
• A collaborative and supportive team culture where your contributions are valued

Contact

If this sounds like the right next step for you, and you are interested in joining a specialist marine insurance business where you can develop your expertise, take ownership and contribute to a growing international portfolio, we would be pleased to hear from you. We look forward to hearing from you.

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