Finance Partner

Why this role exists As PortSwigger scales beyond $50M in revenue, aligning financial rigor with go-to-market execution is critical. We’re looking for a commercially minded Finance Business Partner to work with the Growth org (Sales, Marketing, Customer Experience) and embed financial discipline into how we acquire, retain, and grow our customer base. This is a high-impact role designed to accelerate decision-making, optimize revenue performance, and improve the fidelity of our financial planning. You’ll sit at the intersection of Finance and Growth, providing insight, clarity, and systematic improvements that drive sustainable revenue growth. What you’ll be doing Financial Planning & Revenue Analytics Build robust top-line financial plans, iterating model design and integrating inputs from Sales, Marketing, Customer Experience, and Product. Act as a subject matter expert, surfacing and interpreting KPIs such as ARR, GDR, pipeline coverage, CAC, LTV, and sales productivity. Deliver actionable insights to highlight risks and opportunities across the funnel. Support planning processes with scenario modelling, forecasting, and diagnostics. Develop and maintain dashboards to enable self‑serve insights for Growth and leadership teams. Strategic Business Partnering Provide commercial finance support for sales leadership, including quota setting, headcount planning, and commission modelling. Influence pricing strategy, product monetization, and expansion decisions. Collaborate with Product leaders to assess the financial impact of new features and improvements. Contribute to board and investor reporting with clear, data‑backed revenue insights. Revenue Process Optimisation Identify operational improvements across the lead‑to‑cash cycle, focusing on scalability and efficiency. Support systematic processes around pipeline hygiene, deal stages, and renewals. Partner with Sales, Marketing Ops, and Customer Success to align on definitions, handoffs, and SLAs. Detect and address revenue leakage or inefficiencies in pricing or contract structures. Systems & Data Integrity Act as a bridge between Finance and Growth systems—ensuring Salesforce and billing systems remain in sync. Work with data engineers to maintain scalable, governed revenue‑related data pipelines. What success looks like Executives and Growth leaders have trust in reporting and visibility into key revenue levers. Planning processes are efficient, auditable, and trusted by stakeholders. Revenue processes are systematic, reducing bottlenecks and leakage. Finance is seen as a proactive commercial partner, balancing strategic guidance with operational execution. Background & Experience 2–4 years in Revenue Operations, FP&A, or Commercial Finance, ideally in SaaS or recurring‑revenue businesses. Strong academic foundation in finance, economics, business, or a quantitative discipline. Additional qualifications (MBA, professional certification) are a plus. Exposure to scaling environments, growth transformations, and major change projects. Track record of career progression, showing ambition and readiness for greater responsibility. Skills & Capabilities Strong skills in financial modelling, data analytics, Excel/Sheets, BI tools (e.g., ThoughtSpot), and ideally SQL Comfortable building dashboards, models, and scenario‑based forecasts. Curious about and adept with AI and automation to streamline insights and workflows. Logical, analytical thinker who can distil complexity into clear, actionable insights. Effective at building strong cross‑functional relationships and explaining finance concepts to non‑finance stakeholders. Adaptable to fast‑paced, evolving systems and processes. Personal Attributes Energetic, curious, and collaborative, with a knowledge‑sharing mindset that enables others to build their own capability. Thrives on solving complex, open‑ended problems and influencing decisions. Commercially sharp and dependable, combining analytical rigour with pragmatism. Direct yet empathetic communicator—able to influence, simplify complexity, and bring numbers to life. Motivated by ownership, impact, and continuous growth. Bonus if you have… Experience in a scale‑up with ambitious revenue growth targets. Worked on pricing strategy, usage‑based billing, or product monetization. Familiarity with Python/R or advanced automation approaches. Why join us? We foster an inclusive and high‑performance culture with a focus on work‑life balance. We believe in rewarding people generously and offer a competitive salary based on individual skills and contribution. We host regular team events and have fantastic summer and winter parties. You’ll be part of a humble, supportive, and fun team that values collaboration, humour, and a strong sense of belonging. We offer share options, 8% employer pension contribution, life assurance, income protection, private medical insurance, and 25 days holiday (plus public holidays). Our working hours are flexible, with core hours from 9am to 4pm. We work best when we are together on site. #J-18808-Ljbffr