via Reed · 11 September 2026 ·8 days ago

Head Of Finance

Infiniium Ltd
London Full-time GBP 110,000 – 130,000
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An incredibly exciting, ARR x10 revenue growth international Tech / AI business based in London are seeking their first hire in finance.

This role will be the first dedicated finance person, responsible for bring the function in-house & establishing the controls, processes etc. Initially it will be more technocally focused, however once BAU has been established it will become operationally focused and a team will be built to support the function.

You will own and manage the quote-to-cash cycle, finance operations, and accounting function with decision making authority on what should be in-housed, outsourced, and automated. Your responsibilities will include:

  • Own and manage the full quote-to-cash cycle including

  • Quote & contract structure

  • Managing the invoicing system & generating invoices

  • Collections & cash application

  • Revenue recognition & the close

  • Working with engineers / data scientists to implement new invoicing models for usage-based pricing agreements

  • Drive automation of repetitive tasks

  • Use AI finance solutions and leverage our technical staff to run a highly automated, lean finance function

  • Support new system implementations and accounting tool integrations

  • Manage finance operations, internal controls & compliance including

  • Cash management across entities and currencies

  • Intercompany management: recharges, balances, funding flows and transfer pricing documentation with our advisors

  • Tax and statutory compliance

  • Ensure compliance with GAAP / IFRS, company policies, and regulatory requirements

  • Lead external audits and coordinate with auditors for timely completion

  • Provide guidance on treatment for accounting issues

  • Draft and maintain accounting policies and memos for key transactions

  • Oversee accounting and reporting (managing management account and / or external service providers):

  • Financial statement preparation in accordance with US GAAP / IFRS (for UK entity)

  • Month-end, quarter-end, and year-end close processes

  • Managing on-going accounting activities including AP, AR, payroll accounting, and cash management

  • Keep the business financing-ready and support fundraising

  • Opportunity to support in leading fundraising rounds

  • Own customer-facing financial diligence

  • Own banking and credit facility relationships

  • FP&A and business operations

  • Collaborate with FP&A, operations, and cross-functional leaders to provide analysis and insights

  • Support budget vs. actual variance analysis

About You

8+ years of finance experience including high-growth SaaS startup; 2+ years of finance leadership experience:

  • Holds accounting certification (e.g. ACA/ACCA or CPA), trained in a Public Accounting firm

  • 8+ years of combined experience including

  • 5+ years of experience at high growth SaaS startup(s)

  • 2+ years of experience managing complex quote-to-cash structures

  • bonus points for

  • 2+ years of experience as sole finance hire / head of finance

  • Versed in complex quote-to-cash structures: they use highly bespoke usage-based pricing models with significant variation across customers and product lines — you will need to be versed in handling complex usage based pricing / quote-to-cash structures

  • An owner: able to design / implement accounting processes for the ground-up

  • Proficient in US GAAP, familiarity with IFRS and/or UK GAAP

  • Flexible in approach — willing / able to be flexible and build an accounting system that fits to our business

  • AI-native: daily user of LLMs such as Claude and familiar with AI finance tools

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