Administration Assistant

Thames Underwriting ↗
Leigh-on-Sea, England, England £21k – £23k / yr Full Time 🇬🇧 United Kingdom Posted: 2026-07-11
SPONSORED
Full Job Description

Administration Assistant - Leigh-on-Sea - ARD901399

We’re on the hunt for a talented Administration Assistant to join Thames Underwriting. This roles sits within the Commercial division which comprises of Commercial Combined, Property Owners, General Liability and Leisure risks. This role will provide support and assistance to Underwriters carrying out a variety of administrative tasks as required.

What you will do as Administration Assistant:

This is an overview and not an exhaustive list of responsibilities.

  • Complete quotation and policy schedules
  • Data entry and production of reports and spreadsheets.
  • Completion and checking bordereaux for consistency and accuracy.
  • Answering the telephone / speaking to brokers and insurers.
  • Organising and maintaining diary system.
  • Handle general enquiries

Who we are looking for in an Administration Assistant:

This is an opportunity for an organised individual with previous administration experience with a keen eye for detail who can prioritise their own workload and assist the team in managing theirs. You will be computer literate and have experience of using both Microsoft Word and Excel.

In return you will be welcomed and supported by our Ardonagh family and be joining an organisation that cares about you as a person and your wellbeing. Some of the other benefits are:

  • Holiday entitlement of 26 days plus bank holidays
  • Opportunity to progress your career across the entire Ardonagh family
  • Pensions scheme for when you feel it’s time to retire
  • 24-hour support for physical and mental wellbeing
  • 1 days paid volunteering day to give back to our communities
  • The Spotlight Awards, where we shine a light on the brightest talent across our group

If your application is successful, we will conduct relevant employment checks prior to you commencing employment with us. These will include verifying your recent employment, address, credit history and a standard criminal record check.

Please note: We may close a vacancy prior to the publish end date if the required quality or number of applications has been received. No Agencies please

Why not check us out on LinkedIn or speak to one of our team to find out what life’s really like with The Ardonagh Group family.

Job Types: Full-time, Permanent

Benefits:

  • Additional leave
  • Company events
  • Company pension
  • Employee discount
  • Employee mentoring programme
  • Financial planning services
  • Health & wellbeing programme
  • Life insurance
  • Paid volunteer time
  • Referral programme
  • Store discount
  • Work from home

Schedule:

  • Monday to Friday

Supplemental pay types:

  • Bonus scheme

Ability to commute/relocate:

  • Leigh-on-Sea, SS9 2HN: reliably commute or plan to relocate before starting work (required)

Application question(s):

  • Will you now or in the future require sponsorship for employment visa status? (Required)
  • What is your salary expectation for this role? (Required)
  • To allow adding to our internal applicant tracking please confirm your email address? (Required)

Experience:

  • Administrative experience: 1 year (required)
  • Microsoft Excel: 1 year (required)

Work authorisation:

  • United Kingdom (required)

Work Location: In person

Reference ID: ARD901399

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📋 Job Overview

Company Thames Underwriting
Location Leigh-on-Sea, England, England
Salary £21k – £23k / yr
Job Type Full Time
Posted 2026-07-11
Deadline 2026-09-11
Country 🇬🇧 United Kingdom

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