Job Specifications
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
Requirements
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
Benefits
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