Finance & Accounts Payable Assistant in London

About Swap
Swap is the infrastructure behind modern agentic commerce. The only AI-native platform connecting backend operations with a forward-thinking storefront experience. Built for brands that want to sell anything - anywhere, Swap centralises global operations, powers intelligent workflows, and unlocks margin-protecting decisions with real-time data and capability. Our products span cross-border, tax, returns, demand planning, and our next-generation agentic storefront, giving merchants full transparency and the ability to act with confidence. At Swap, we’re building a culture that values clarity, creativity, and shared ownership as we redefine how global commerce works.

About the Role
We are looking for a Finance and Accounts Payable Assistant to help build and scale a core part of Swap’s finance operations from the ground up. This is not a traditional AP role — it’s an opportunity to operate at the intersection of finance, systems, and automation, where you will go beyond transactional processing to help shape how payables, procurement, and financial controls evolve in a fast-scaling, AI-native business.

You will:

• Take ownership of day-to-day payables operations while improving how they work
• Contribute to building scalable processes, controls, and systems
• Work closely with internal teams and external vendors as a trusted business partner
• Play a key role in introducing automation and AI-driven efficiencies across finance workflows

This role is ideal for someone who thrives in a fast-paced startup environment, enjoys solving problems, and wants to grow alongside the business. You’ll be equally comfortable handling detailed operational tasks while identifying opportunities to improve, automate, and scale. You will play a key role in building the foundations of a modern, efficient, and intelligent finance function, with the opportunity to shape your role as Swap continues to grow.

Key responsibilities

• Own day-to-day accounts payable operations, including invoice processing, supplier management, and payment runs, ensuring accuracy and strong financial control
• Manage supplier relationships and act as the primary point of contact for queries, discrepancies, and payment-related communications
• Drive the adoption of automation tools and AI-assisted workflows across invoice processing, coding, and reconciliation to improve efficiency and reduce manual effort
• Maintain and optimise supplier master data, ensuring data integrity and alignment with internal controls and compliance standards
• Support and enhance purchase order processes, working cross-functionally to ensure proper approvals and spend visibility
• Identify and resolve discrepancies in vendor invoices (including high-volume and business-critical suppliers), partnering with internal stakeholders to ensure accuracy and cost control
• Contribute to system implementations and improvements (ERP/AP tools), helping design scalable processes and embedding best-in-class controls and workflows
• Assist with broader accounting and finance operations including month-end close, bank reconciliations, and audit support, while continuously identifying opportunities for process improvement and automation

What we would like to see:

• 2+ years of experience in a Finance or Accounts Payable role, ideally in a fast-paced or startup environment
• Experience working with accounting systems (e.g. NetSuite, Xero, QuickBooks), with a strong interest in systems, process improvement, automation and adoption of AI tools
• Strong Excel skills and confidence working with large datasets and financial data
• High attention to detail combined with a proactive, problem-solving mindset
• Comfortable working independently and taking ownership in a rapidly changing environment
• Strong communication skills with the ability to collaborate across teams and manage supplier relationships effectively
• A hands-on, curious attitude — someone who challenges processes and looks for smarter ways of working
• Interest in ecommerce, tech, or startup environments is a strong plus

Benefits:

• Competitive base salary.
• Stock options in a high-growth startup.
• Competitive PTO with public holidays additional.
• Private Health.
• Pension.
• Wellness benefits.
• Breakfast Mondays.

Diversity & Equal Opportunities:
We embrace diversity and equality in a serious way. We are committed to building a team with a variety of backgrounds, skills, and views. The more inclusive we are, the better our work will be. Creating a culture of equality isn't just the right thing to do; it's also the smart thing.