Finance & Office Manager — End-to-End, Multi-Entity Growth in Brentwood

is a growing electrical, security, construction and renewable energy business operating across commercial and domestic sectors. Due to continued growth and internal restructuring, we are looking to recruit an experienced and proactive Finance & Office Manager to support the day-to-day running of the business across multiple group companies. This is a varied and hands-on role suited to somebody who is highly organised, commercially aware and capable of managing finance, administration, HR and compliance responsibilities within a fast-paced SME environment. The successful candidate will work closely with the directors, external accountants, suppliers, customers and members of staff, playing a key role in supporting the continued growth and organisation of the business.

Financial Management

• Manage end-to-end bookkeeping for three companies using Sage Line 50 and Xero
• Prepare accounts to trial balance for monthly and year-end reporting
• Process purchase invoices, sales invoices, credit control and supplier payments
• Manage monthly alarm monitoring invoices
• Manage monthly PPM invoicing
• Reconcile bank accounts, credit cards, petty cash and intercompany transactions
• Prepare invoices for weekly pay runs
• Prepare settlement discounts where appropriate for month-end pay runs
• Carry out credit control duties and debtor management
• Prepare management reports
• Carry out credit checking of prospective customers
• Support directors with financial queries and operational reporting
• Liaise with internal departments and external organisations
• Coordinate correspondence from the lettings company
• Improve internal processes and maintain strong financial controls across all group companies
• Chase payment dates for valuations and outstanding invoices
• Prepare VAT returns and ensure compliance with HMRC requirements
• Liaise with external accountants regarding year-end adjustments and statutory accounts
• Assist with financial reporting
• Support continuous improvement of financial systems and controls

CIS (Construction Industry Scheme)

• Register and verify subcontractors
• Review CIS invoices to ensure correct deductions are applied
• Ensure subcontractor payments are processed promptly
• Process CIS deductions and prepare monthly CIS returns
• Send deduction values to accountants for submission with EPS
• Issue CIS deduction statements to subcontractors
• Ensure ongoing compliance with HMRC CIS regulations

Payroll Support

• Provide payroll data to external payroll providers
• Maintain employee payroll records and ensure accuracy of payroll inputs
• Ensure compliance with National Minimum Wage increases and payroll legislation
• Support pension and payroll administration processes

Required Qualifications & Experience

• Proven experience working in a similar Finance / Office Management role min 5 years
• Minimum AAT Level 3 qualification or equivalent industry experience
• Previous experience within construction, electrical, engineering, maintenance or service-based industries is preferred
• Strong working knowledge of Sage Line 50 and Xero
• Experience managing accounts to trial balance across multiple entities
• Solid understanding of CIS, VAT and HMRC compliance
• Experience with payroll
• Strong Excel skills and general IT proficiency
• Ability to manage multiple workloads and priorities simultaneously
• Strong organisational and communication skills
• Ability to work independently and take ownership of processes
• Understanding of applications, valuations, retentions and subcontractor management

Key Competencies

• High attention to detail and accuracy
• Strong organisational and time-management skills
• Clear communication and problem-solving abilities
• Professional and discreet when handling confidential information
• Proactive and commercially aware
• Positive attitude and willingness to support the wider business
• Ability to work effectively under pressure and meet deadlines
• Strong work ethic and ability to adapt within a growing business

What We Offer

• Long-term opportunity within a growing business group
• Friendly and supportive working environment
• Company pension
• On-site parking
• Opportunities for progression and personal development
• Stable long-term position within an expanding business
• Benefits - 20 Days paid holiday pa. + Bank holidays
• Sick pay - Statutory sick pay
• Automatically enrolled into Pension scheme after 3 months' probation
• Place of work - Smart Firm HQ (Shenfield)
• OT paid for hours over and above working day.
• Hours of work - 8.30 am until 5.00 pm or agreed similar format