We’re looking for a detail-driven and proactive Finance Administration Assistant to join Whistl on a permanent, part-time basis.
This role is ideal for someone who enjoys working with numbers, processes, and people, and who takes pride in delivering accurate, timely financial and administrative support.
You’ll play a key role in supporting invoice delivery, reporting, and operational efficiency while helping to maintain excellent customer experiences.
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About the RoleThe Finance Administration Assistant plays a key role in ensuring smooth financial administration and high service standards across the business. You’ll work closely with internal teams, supporting bespoke invoicing processes, reporting, and customer queries, while ensuring accuracy and efficiency at all times.
Core Responsibilities
Ensure all correspondence is clear, professional, and delivered in a timely manner
Manage bespoke invoicing processes, including preparation of manual billing
Raise invoices and investigate invoice queries
Update and maintain purchase orders
Maintain and update CRM systems
Generate and distribute monthly and ad-hoc Jet reports for multiple account managers
Prepare and submit monthly KPI reports, detailing service levels
Manage bespoke envelope orders, liaising with suppliers for quotes and pricing
Raise invoices for envelope orders and support customer pricing queries
Maintain up-to-date knowledge of Whistl products and internal processes
Support the wider Customer Services and Finance teams as required
Undertake additional duties in line with the role
Additional Information -
Permanent | Part-Time | 22.5 hours per week (3 days)
Benefits
Annual leave enhanced with long service.
Company Pension
Long service rewards: both financial and leave-based.
Health cash plan.
Life assurance scheme.
Critical Illness cover
Access to our prestige benefits and rewards portal.
Career development opportunities.
Access to a well-established Employee Assistance Programme provider.
And other excellent benefits you'd expect from a market leader.
Requirements
Essential Skills & Experience
Strong organisational skills with the ability to prioritise and meet deadlines
A proactive, hands-on team player with a positive, “can-do” attitude
Self-motivated and able to work independently with strong attention to detail
Confident communicator, both written and verbal, across phone, email, and in person
Strong analytical skills with the ability to interpret data and identify trends
Proficient in Microsoft Office and comfortable using internal systemsDesirable Attributes
Experience using CRM systems
Knowledge of postal or logistics industry workflows
Experience with KPI reporting or performance data analysis
Advanced numerical skills