Finance Administrator

Mountjoy; Portsmouth; On-site; GBP 20,000 - 28,000; Part time

Job summary

Mountjoy in Portsmouth requires a conscientious Finance Administrator on a fixed-term contract until end of October 2026, for 20-30 hours per week. You will input data in Excel, run reports, and support costing and finance activities using our bespoke Job Management system.

The role includes processing supplier and subcontractor invoices, assisting with job costing, and maintaining financial controls in line with audit standards. Strong numeracy and organisational skills are essential.

Qualifications

• GCSE Grade C/4 or above in English and Maths (or equivalent), or relevant professional experience

Responsibilities

• Process and match supplier invoices within the in-house accounting system, ensuring accuracy and timely posting.
• Review and approve subcontractor invoices in line with audit and compliance requirements. Liaise with subcontractors to obtain missing documentation and resolve invoice-related queries.
• Partner with the Finance Business Partner (FBP) to challenge and investigate subcontractor invoices that do not comply with agreed contractual or process requirements.
• Support the costing function by assisting with job costing activities within the in-house system, ensuring accurate allocation of costs and financial reporting.
• Maintain strong controls and adherence to company policies, procedures, and audit standards throughout the invoice processing cycle.

Skills

Communication skills

Numerical aptitude

Attention to detail

Organisational skills

Time management

Data entry

Education

GCSE English & Maths

Tools

Excel

Word

Job description

This is a fixed term contract until the end of October 2026 for 20 - 30 hours per week

Mountjoy is one of the foremost housing maintenance, facilities management, and construction companies in the South of England.We are seeking an conscientious Finance Administrator who has experience of using excel to input data and run reports. In addition, you will be required to use our bespoke Job Management system to support with costing and finance activities

KEY RESPONSIBILITIES & ACTIVITIES

• Process and match supplier invoices within the in-house accounting system, ensuring accuracy and timely posting.
• Review and approve subcontractor invoices in line with audit and compliance requirements. Liaise with subcontractors to obtain missing documentation and resolve invoice-related queries.
• Partner with the Finance Business Partner (FBP) to challenge and investigate subcontractor invoices that do not comply with agreed contractual or process requirements.
• Support the costing function by assisting with job costing activities within the in-house system, ensuring accurate allocation of costs and financial reporting.
• Maintain strong controls and adherence to company policies, procedures, and audit standards throughout the invoice processing cycle.

SKILLS REQUIRED

• Strong verbal and written communication skills
• Good numerical aptitude and attention to detail
• Proficient in Microsoft Office applications, including Word and Excel, with accurate keyboard and data entry skills
• Excellent organisational and time management skills

QUALIFICATIONS

• GCSE Grade C/4 or above in English and Maths (or equivalent), or relevant professional experience