Temp Accounts Assistant - Contractor Billing & Invoicing

IT Human Resources; Greater London; On-site; GBP 26,000 - 32,000; Full time

Job summary

ITHR Group is seeking an experienced Accounts Assistant for a maternity cover role, running from November 2026 to September 2027. You will handle contractor timesheets, client invoicing, and reconciliations within the Group Accounts team.

The role requires attention to detail, strong organisational skills, and proficiency in Microsoft Office, with Sage 50 and TimeTemp knowledge being advantageous. Strong communication and ability to work under pressure are essential.

Qualifications

• Previous experience in a Recruitment Business/Agency in a similar role.
• Consistent attention to detail and professional outlook to ensure accurate delivery of task.
• Methodical approach and good organisational ability.
• CRM and accounting systems knowledge would be advantageous (Sage 50, TimeTemp).
• Sound background in English and Maths; written communication and figure work are key.
• Excellent verbal communication skills.
• Ability to work under pressure and deadlines in confidential environments.
• Experience in a finance function including accruals, prepayments, and P&L/Balance Sheet reconciliations.

Responsibilities

• Review and check of timesheet uploads to the timesheet processing system.
• Self-billing check and value reconciliation.
• Timesheet push to Sage 50 – contractor/client.
• Client Purchase order tracking.
• Liaison with contractors, sales consultants and other key personnel to deal with queries.
• Sage reconciliation to timesheet processing system; issue of client invoices (contractor and perm).
• Contractor payment and remittance advices.
• Banking uploads and ledger alignment.
• Reconciliation of payroll and sales costs; monthly journals and balance sheet accounts.
• Preparation of monthly division P&Ls for sales and cost of sales.
• Assistance in other finance tasks within the finance function.

Skills

Attention to detail

Organisational skills

Communication skills

Resilience under pressure

English & Maths literacy

Microsoft Office

CRM knowledge

Tools

Sage 50

TimeTemp

Job description

ITHR Group is seeking an experienced Accounts Assistant for a maternity cover role, running from November 2026 to September 2027. You will handle contractor timesheets, client invoicing, and reconciliations within the Group Accounts team.

The role requires attention to detail, strong organisational skills, and proficiency in Microsoft Office, with Sage 50 and TimeTemp knowledge being advantageous. Strong communication and ability to work under pressure are essential.