Fractional Finance Director D2C E-Commerce Brand London

Confidential; Greater London; Hybrid; GBP 111,000 - 129,000; Part time

Benefits offered by this job

Hybrid work

Hybrid office in London

Job summary

Harmonic is partnering with a profitable D2C e-commerce brand to recruit a Fractional Finance Director for 12 months (maternity cover) in London. The role is strategic, two to three days a week, hybrid with Thursdays in the office and reporting to the CEO.

You will lead board reporting, challenge commercial assumptions, oversee forecasting and treasury, and help shape the leadership team's priorities using data-driven insights from an AI-enabled finance stack.

Qualifications

• Qualified ACA/ACCA/CIMA with senior finance leadership experience.
• Experience as FD/CFO in D2C e-commerce, subscription or consumer tech.
• Proven ability to engage with the board and shareholders and to challenge the leadership.

Responsibilities

• Stress-test strategic direction with the CEO/CTO using data to shape priorities and plans.
• Lead finance reporting to the board, including narrative and shareholder updates.
• Guide decision-making to focus on high-impact commercial opportunities.
• Line-manage the Senior FP&A Manager and Operations Lead.
• Oversee forecasting and statutory matters with external accountants.
• Own cash and treasury management.
• Develop the finance stack and AI-enabled insights.

Skills

Strategic leadership

Board & shareholder management

Financial planning & analysis

Treasury management

Stakeholder communication

Education

ACA/ACCA/CIMA

Tools

AI-enabled reporting stack

Excel

Job description

Fractional Finance Director D2 C E-Commerce Brand London / Hybrid

The Client

Harmonic is delighted to be partnering with a profitable, multi-million-pound D2 C e-commerce business, with a loyal customer base across the UK, the US and beyond. With an established, AI-enabled finance function and a lean leadership team, the business is now repositioning for its next phase of growth, and this role sits at the centre of that.

The Role

Covering a 12-month maternity leave, the Fractional Finance Director will join the leadership team alongside the CEO and CTO, reporting to the CEO, two to three days a week. This is a strategic role rather than a hands-on one: a Senior Finance Manager leads day-to-day finance, management accounts and monthly reporting with support from external accountants, so your focus is senior challenge and judgement, testing commercial assumptions, sharpening the board narrative and keeping the leadership team focused on what drives commercial impact. You will line-manage the Senior Finance Manager and the Operations Lead, and hand back cleanly at the end of the cover period.

Key Responsibilities

• Stress-test strategic direction with the CEO and CTO, using customer, retention and unit economics data to shape priorities, resource allocation, investment decisions, forecasts and plans.
• Lead finance reporting to the board, including narrative, meetings and updates, and support the Chair on shareholder relations.
• Guide leadership team decision-making, keeping the business focused on the priorities with the biggest commercial impact.
• Line-manage the Senior FP&A Manager and the Operations Lead, setting priorities and supporting their development.
• Oversee forecasting and statutory matters, stepping in for detailed review and judgement rather than production.
• Own cash and treasury management.
• Develop the finance stack and processes, exploring how AI can deliver sharper commercial insight.
• Maintain continuity through the cover period and hand back cleanly.

Essential Experience

• Qualified accountant (ACA / ACCA / CIMA).
• FD or CFO experience in D2 C e-commerce, subscription or consumer tech.
• Track record of board and shareholder relationship management, and the confidence to challenge the leadership team and the board.
• Experience partnering a CEO and leadership team to bring clarity through change.
• Strong commercial and data fluency (customer cohorts, retention, CAC and LTV, pricing), and comfortable working with a modern, AI-enabled reporting stack.
• Proven fractional or part-time track record, with high impact in two to three days a week.

Desirable Experience

• Subscription or credit-based pricing models.
• Experience repositioning a business for growth.
• US market experience.

Rate: £600-£700/day

Contract Length: 12 months (2-3 days a week)

Location: London (Shoreditch), hybrid, with Thursdays in the office

Start Date: December 2026

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.