Head of Finance | B2B SaaS Start-up | Fully Remote (UK)

Harmonic, Inc.; Remote; GBP 55,000 - 75,000; Part time

Job summary

A leading SaaS company in the UK is seeking an experienced Financial Controller to manage financial records, oversee a lean operations team, and ensure compliance. The ideal candidate will be a qualified accountant (ACA / ACCA) with over 2 years of post-practice experience, preferably in the SaaS sector. This remote role offers autonomy and the chance to work within a dynamic team focused on growth and innovation in a fast-paced environment.

Qualifications

• Practice trained qualified accountant with 2+ year post-practice experience.
• Experience in a SaaS / Tech business preferred.
• Proven experience in a senior finance role.

Responsibilities

• Take full ownership of financial records and ensure accuracy.
• Oversee finance operations team including billing and cash flow.
• Lead month-end close and prepare reports with CFO.

Skills

financial record accuracy

financial reporting

strategic financial planning

regulatory compliance

clear communication

Education

qualified accountant (ACA / ACCA)

Tools

Xero

Spendesk

Job description

Overview

In this role, you'll collaborate closely with a part-time CFO to shape the financial backbone of the business. From tightening internal controls to delivering meaningful insights through data-driven reporting, you'll help ensure the company stays compliant, scales responsibly, and builds lasting value.,

Responsibilities

• Take full ownership of our financial records and ensure their accuracy
• Oversee a lean finance operations team across billing, payments, credit control, inventory, and cash flow
• Coordinate with external partners (accountants, auditors, tax advisors) to meet statutory requirements in the UK and US
• Contribute to strategic projects and financial planning activities
• Lead month-end close and prepare internal and external reports with the part-time CFO
• Deliver regular financial analysis for sales updates and business reviews
• Manage payroll in collaboration with the part-time CFO
• Oversee our financial systems (e.g. Xero, Spendesk)
• Stay on top of regulatory obligations and ensure ongoing compliance
• Guide and support the Accounts Assistant

Qualifications

• Practice trained qualified accountant (ACA / ACCA) with 2+ year post-practice experience
• Experience in a SaaS / Tech business preferred
• Proven experience in a senior finance role
• Clear communicator and able to build relationships across all levels

About Harmonic

Harmonic are delighted to be working with a Software-as-a-Service (SaaS) businesses in their search for an experienced Financial Controller to join the team. Operating in the B2B SaaS space, their cutting-edge platform supports a range of businesses including fast growing startups to global brands, helping them to streamline and enhance key operations and deliver measurable impact across teams and workflows. They have attracted major Venture Capital investors with a track record of backing some of the most disruptive and successful tech success stories of the last decade. The business is led by a highly ambitious and bright senior leadership team that promotes empowerment, ownership and accountability. Subsequently, you'll be trusted to work autonomously as a remote employee. They are building a team of smart, passionate, and ambitious people that are excited by the opportunity for growth both personally and professionally as they aim to build the next SaaS success story.