Contractor Payroll & Accounts Assistant (Part-Time)
Strongfield
Strongfield Technologies Ltd
Location: Office Based :- Alperton / Wembley, Middlesex (HA0 1BA)
Part-Time Position: 3 days per week, circa £15 / hr (negotiable)
Start Date: Immediate Start- July/Aug 2026
Strongfield is an international recruitment, engineering services and technology business/group operating across the aerospace, defence and advanced engineering sectors. In addition to providing specialist engineering and consultancy support to major global programmes, the Group supplies high-tech equipment and ruggedised power solutions to customers worldwide.
To support our growth, we are looking for a Contractor Payroll & Accounts Assistant to support our finance team with contractor payroll, invoicing, bookkeeping and general finance administration.
We anticipate the role to be at a junior accounts assistant level with opportunity to develop through internal training.
Key Responsibilities
- Assist with contractor payroll processing and timesheet administration
- Prepare contractor and client invoices
- Maintain payroll and finance records
- Process purchase invoices using Xero
- Assist with sales and purchase ledger activities
- Perform bank reconciliations
- Support bookkeeping and month-end administration
- Respond to payroll and invoicing queries from contractors and clients
- Provide general administrative support to the finance team
Essential
- Experience using Xero accounting software
- Previous experience in payroll, accounts or finance administration
- Experience with purchase and sales ledger activities
- Bank reconciliation experience
- Good Microsoft Excel skills
- Strong attention to detail and organisational skills
- Contractor payroll experience
- Experience within recruitment, staffing or professional services
- Knowledge of PAYE and contractor payroll processes
- Reliable and trustworthy
- Organised and methodical
- Accurate and detail-oriented
- Able to work independently and as part of a team
- Professional and confident communicator
- Friendly and supportive working environment
- Varied role across payroll, bookkeeping and finance administration
- Opportunity to develop within a growing international business
Please submit your CV together with a brief summary of any relevant Xero, bookkeeping and payroll experience.
Candidates must be eligible to work in the UK before making an application and it is the responsibility of the applicant to provide evidence of such eligibility.
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