Reports into: Head of FP&A
Contract: Full Time, 7.5 hours per day, 5 days per week
Location: Hybrid — 3 days per week in our Old Street, London office

About Us
Nothing is clearer to us than the belief that every woman should include strength training in her life to enhance both physical and mental well-being. It's about building strong bodies and even stronger minds, asserting their right to take up space in the gym, and allowing the spotlight to shine bright on their progress.

These are the pillars that form the foundation of Oner Active. We consistently challenge ourselves to create innovative and impactful products so that you can perform better. We are on a mission to unite and empower women to be the strongest version of themselves — and we're only just getting started.

Our FP&A Team
The Financial Planning & Analysis team is the strategic co-pilot to the entire business. We drive the budget cycle, monitor performance, and build the financial insight and infrastructure that keeps every department accountable. We are a fast-growing ecommerce business operating at scale, and the FP&A function plays a central role in making sure our financial operations keep pace with our commercial ambitions.

We are in an exciting period of change — consolidating our financial data, implementing a new ERP, and building the processes and controls that will support the next stage of our growth. This role sits at the heart of that journey.

The Opportunity
We are looking for a Senior FP&A Analyst who is commercially curious, highly organised, and energised by working in a fast-moving, scaling business. You will support the full planning and analysis cycle — from budgets and forecasts through to month-end reporting and business partnering.

You will be joining at a point where strong financial discipline is critical. You will work closely with budget holders and the wider Finance team to maintain accurate visibility of spend versus actuals, ensuring costs are recognised correctly and that the business always has a clear picture of where it stands.

About You
You are a proactive self-starter who thrives where the answers are not always at your fingertips — comfortable navigating fragmented data, building structure from scratch, and delivering clear insight even when the picture is incomplete. You bring strong analytical foundations, a commercial mindset, and the drive to make things happen without being told twice. Experience within retail, or operationally complex business is a real advantage — we want someone who can bring that rigour and apply it at pace in a scaling ecommerce environment.

What You'll Be Responsible For

Financial Planning & Forecasting
• Assist in the preparation of annual budgets and quarterly forecasts, gathering inputs from across the business and maintaining up-to-date financial models.
• Support the development of forecasting models, including sensitivity analysis and scenario planning, to inform strategic and operational decision-making.
• Prepare and maintain P&L, balance sheet, and cashflow forecasts, ensuring consistency and accuracy across all outputs.
• Analyse sales trends and performance metrics across UK, US, EU, and ROW regions, providing data-driven insights that support growth and strategic planning.

Reporting & Variance Analysis
• Prepare variance analysis and support the production of monthly reporting packs for review by the Head of FP&A, Finance Director and senior leadership.
• Review departmental spending against budget, providing clear and timely commentary to budget holders on key variances and emerging risks.
• Prepare channel and departmental P&Ls with accurate reconciliations, ensuring financial data is reliable and decision ready.
• Perform detailed ad hoc analysis and deliver data-driven insights to support projects, cost control initiatives, and commercial decisions.

Cost Tracking & Business Partnering
• Act as the primary finance partner to the Marketing and Commercial teams and support month-end close, forecasting, and budget management.
• Maintain accurate tracking of marketing spend versus budget across channels, campaigns, and regions, ensuring costs are correctly accrued, coded, and reported.
• Work closely with budget holders to review actual spend, provide timely commentary on variances, and ensure accountability in the absence of an automated PO system.
• Proactively identify risks and opportunities within the marketing cost base and escalate findings to the Head of FP&A.

Systems, Process & Collaboration
• Work closely with the wider Finance team to deliver seamless financial operations and ensure compliance with internal policies and external reporting requirements.
• Drive continuous improvements to FP&A processes, reporting templates, and financial controls as the business scales.
• Participate in ad hoc projects and cross-functional initiatives, providing financial support and insight to the wider business.

What You'll Need

Essential
• 3–5+ years in FP&A, Commercial Finance, or a Finance Business Partnering role.
• Proven experience supporting budgeting, forecasting, month-end close, and variance analysis.

• Advanced Excel or Google Sheets skills, with confidence building and maintaining complex financial models.
• Strong communication skills — able to present financial information clearly to both finance and non-finance audiences.
• Comfortable working in a fast-moving environment with evolving processes and systems.

Nice to Have
• Experience working with or implementing NetSuite or a comparable ERP system.
• Familiarity with ecommerce metrics and marketing KPIs such as CAC, ROAS, and LTV.
• Experience with BI tools such as Power BI, Looker, or Tableau.
• SQL skills or experience working with large data sets.

Our Benefits
• 25 days annual leave + bank holidays, plus work from anywhere for up to 4 weeks a year
• 5% employer match salary sacrifice pension scheme
• Generous Oner Active employee discount plus regular sample sales
• Free Evolve You subscription
• Private Healthcare with Vitality including optical and dental cover
• Monthly wellness allowance and team workout classes
• A start-up culture where you can learn fast and make a real impact
• Team events including our Summer party, Christmas party, and away days
• Dog-friendly office, healthy snacks, and yes — a chocolate cupboard

Equality, Diversity & Inclusion
At Oner Active, it's about embracing diversity and empowering every individual to reach their full potential. We are committed to creating an environment where everyone feels valued, supported, and able to thrive.

We welcome applications from all backgrounds and are dedicated to ensuring that everyone has equal access to opportunities throughout the recruitment process. If you require any reasonable adjustments or additional support, please reach out to our Recruitment team — we're here to support you every step of the way.