Senior Finance Manager - Transactional Finance

Mountain Warehouse; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid working

Staff discount

Pension scheme

Holiday allowance

Job summary

Mountain Warehouse in London seeks a Senior Finance Manager to lead our Transactional Finance teams. You will manage 25+ staff across a fast-paced, multi-site omnichannel retail environment, ensuring accurate processing of high-volume transactions.

This leadership role drives strong financial controls, service delivery, and automation, shaping how transactional finance operates as the business grows in London and beyond.

Qualifications

• Senior transactional finance leadership in a high-volume environment (retail/ecommerce preferred).
• Strong knowledge of accounts payable/receivable, reconciliations and financial controls.
• Experience leading large teams and driving process improvements.

Responsibilities

• Lead and develop the transactional finance team (25+ staff).
• Oversee end-to-end processing across AP, store cash, card settlements, ecommerce receipts and AR.
• Maintain robust financial controls and reconciliations; own month-end close.
• Drive automation, process improvements and governance; support audits.

Skills

Senior finance leadership

High-volume finance operations

Retail/ecommerce experience

Financial controls

Systems experience

Job description

Description

We’re looking for a Senior Finance Manager to lead our Transactional Finance teams. Managing a team of 25+ across a fast-paced, multi-site omnichannel retail environment, you will play a key role in ensuring the smooth, accurate and controlled processing of high-volume transactions.

Department: Finance

Location: London

Description

We’re looking for a Senior Finance Manager to lead our Transactional Finance teams. Managing a team of 25+ across a fast-paced, multi-site omnichannel retail environment, you will play a key role in ensuring the smooth, accurate and controlled processing of high-volume transactions.

This is a highly visible leadership role with real scope to shape and improve how transactional finance operates. You will drive strong financial control, enhance service delivery, and lead automation and process improvements that support the wider business as it continues to grow.

Key Responsibilities

• Lead, develop and motivate the transactional finance team, setting clear objectives and driving high performance.
• Oversee end-to-end processing across accounts payable, store cash, card settlements, ecommerce receipts and accounts receivable, ensuring accuracy, completeness and timeliness.
• Maintain robust financial controls and reconciliations across key areas, including store cash, card receipts, payment gateways, ecommerce settlements, refunds, chargebacks and gift cards.
• Own the transactional finance month-end close, ensuring strong balance sheet integrity, accurate accruals and timely resolution of outstanding items.
• Continuously enhance financial controls, policies and procedures to support strong governance, audit readiness and compliance.
• Develop and monitor transactional finance KPIs, providing clear reporting on service levels and control performance to senior finance stakeholders.
• Contribute to wider finance and business transformation initiatives, supporting change and continuous improvement.
• Drive automation and process efficiencies to reduce manual intervention and strengthen control.
• Own and develop finance systems supporting transactional processes, driving optimisation, data integrity and effective integration with upstream and downstream systems.
• Act as a senior escalation point for complex operational, supplier and customer queries, ensuring timely and effective resolution.
• Deliver a high-quality service to internal and external stakeholders interacting with finance operations.
• Partner cross-functionally with retail, ecommerce, customer service and accounting teams to improve end-to-end processes.
• Manage third-party service providers, ensuring value, performance and continuous improvement.
• Support external audits, including financial and tax, ensuring readiness and strong control evidence.
  
  

We Would Like To Meet Someone Who Is

• Extensive experience in a senior transactional finance, shared services or finance operations role within a high-volume environment (ideally retail or ecommerce).
• Strong technical knowledge of accounts payable, accounts receivable, bank reconciliations and financial controls.
• Proven leadership experience, with a track record of building and developing high-performing teams.
• Experience working with finance systems and delivering system or process improvements within transactional finance environments.
• Highly analytical, with the ability to interpret large data sets and drive informed decision-making.
• Strong stakeholder management and communication skills, with the ability to influence and challenge effectively.
• Resilient, well-organised and detail-oriented, with the ability to prioritise and deliver in a fast-paced environment.
  
  

Benefits

• Competitive salary and benefits package
• Hybrid working, 3 days in London based office & 2 working from home
• Holiday allowance
• 50% staff discount & 25% for family and friends
• Pension scheme