Senior Underwriting Services Executive in London

This isn’t a job description. It’s your invitation. At Aventum Group, we don’t hire to fill seats. We bring people in to build something real. We want people to join us on our mission to be the world’s most inspiring insurance group not by playing it safe but by delivering the unexpected and creating meaningful impact.

That means backing ideas early, trusting people to own their work and giving them the space to grow faster than they thought possible. If you’re looking for rigid career paths or a one‑size‑fits‑all management, Aventum Group probably isn’t for you. However, if you want responsibility from day one, honest feedback, and a culture that expects you to speak up, take ownership, and keep getting better, you might be a great fit.

Some people join us knowing exactly where they want to go. Others figure it out once they’re here. Both work here the question is, will you?

What You’ll Take On

So you’re looking for a new challenge? This is your chance to step into a role with real responsibility. You’ll be given the space to own your work, supported to move as fast as you want and expected to keep raising the bar for yourself and the business. This isn’t just underwriting support. It’s operational ownership.

As a Senior Underwriting Executive, you sit at the centre of how our Specialty, Commercial and Consumer lines run day to day. You’ll act as a trusted SME to Underwriters, delivering proactive, accurate and reliable support that keeps business moving. This role is about more than admin. It’s about control, quality and momentum owning data integrity, meeting SLAs and making sure the engine behind underwriting runs smoothly, efficiently and without surprises.

What you’ll take on:

• Acting as the operational SME across supported lines, partnering closely with Underwriters
• Owning data capture, endorsements, binders and bordereaux with precision and accountability
• Monitoring workflows, resolving queries and protecting SLA performance
• Leading quality assurance, audit preparation and exception reporting
• Supporting projects, improving SOPs and guiding junior team members to raise the bar

What it’s Like to Work Here

Expect high standards and the support to meet them. Expect autonomy (not micromanagement) and the chance to collaborate across teams, brands and borders. Here, your ideas are taken seriously, wherever you sit in the business. We invest when the right tools don’t exist. We listen when our people say something can be better. And when we win, we make sure the people building the business win too. This is a place where performance matters but so does enjoyment, curiosity and doing work you are proud of.

Who Thrives at Aventum?

We don’t expect you to tick every box. Experience helps, but curiosity matters more. If you are willing to learn, take ownership and ask questions when you don’t know the answer, you’re already off to a great start.

We look for people who:

• Have experience relevant to the role, whether from a similar position, education or transferable skills
• Confidence in communicating with others and working together
• A mindset focused on learning, improvement and follow-through
• An interest in how things work (and how they could be improved)

If this sounds like you, you sound ready for a new chapter of challenge at Aventum Group.

Why Apply

Because you want more than a job title. Because you want to grow, not wait your turn. Because you want to be trusted to do good work (and get recognised when you do it). And because you want to help build something inspiring, unexpected and meaningful.