Senior Business Controller

At Kantox, we are looking for a Senior Business Controller to join our Finance team and play a key role in monitoring and optimising our commercial performance.

We’re seeking an analytical and detail-oriented finance professional who thrives in a fast-paced environment and enjoys working close to the numbers. This role is focused on accurate reporting, analysing revenue and margin data in depth, and providing insights that support business planning and decision-making.
You will report to the Senior Controlling Manager, work closely with Sales and Customer Success, and act as a business partner to the Chief Commercial Officer (CCO). You will lead the preparation of the monthly revenue deck and present it to top management. The role will also take part in the development of a new revenue forecasting model, collaborating with Tech and Product teams to enhance accuracy and scalability.

About the Team

You’ll be part of a small but high-impact Finance team based in Barcelona. Your mission is to ensure commercial performance is accurately planned, tracked, analysed, and reported to the business and the Group.

We are detail-oriented, collaborative, and committed to continuous improvement. The role places a strong emphasis on data accuracy, commercial reporting, and insight generation to support the wider business with reliable financial information. You will contribute to budgeting, forecasting, and commercial analysis — calculating SaaS metrics, explaining revenue deviations and drivers, challenging assumptions, identifying opportunities, and driving projects that improve processes and help scale the finance function.

Your mission within Kantox

Budgeting & Forecasting

• Participate in the annual budget cycle and rolling forecasts with a strong focus on revenue.
• Collaborate with Sales and Customer Success teams to ensure forecasts reflect business realities.
• Challenge assumptions where necessary and help prepare presentations for internal stakeholders and Group reporting.

Commercial Performance Analysis & Reporting

• Ensure revenue data is accurate and properly reflected in the financial ERP.
• Perform variance analysis against budget and prior periods, delivering clear explanations of deviations and performance drivers.
• Lead the preparation and presentation of the monthly revenue reporting deck to senior leadership.
• Calculate and monitor key SaaS performance metrics, including ARR, churn, LTV, CAC, and net revenue retention.

Business Partnering & Commercial Support

• Act as a finance partner to Sales and Customer Success teams.
• Support the CCO with financial insights, performance tracking, and ad hoc analysis.
• Oversee the calculation of sales commissions and commercial bonuses, ensuring accuracy and alignment with policy.

Financial Modelling & Business Cases

• Build financial models and prepare business cases for commercial initiatives and customer strategies.
• Provide insight to support data-driven decisions and profitability optimisation.

Process & Systems Improvement

• Contribute to projects that enhance forecasting accuracy, reporting efficiency, and commercial data quality.
• Collaborate with Tech, Product, and external consultants to support system and process improvements.
• Lead the development of a new revenue forecasting model and support future BI tool integrations.

• 5–7 years of experience in Commercial Controlling or Business Controlling, ideally in an international or high-growth environment
  

• Strong knowledge of revenue modelling, margin analysis, and SaaS/commercial KPIs
  
• Proven experience in budgeting, forecasting, and variance analysis
  
• Skilled in financial modelling and translating data into business insights
  
• Analytical and detail-oriented, with a proactive mindset and the ability to challenge assumptions
  
• Excellent communication skills with the confidence to present findings to senior stakeholders
  
• Hands-on, collaborative, and comfortable working directly with data and cross-functional teams
  
• Degree in Finance, Economics, Accounting, or a related field
  
• Advanced Excel skills required.

Experience with ERP systems and Power BI is a plus.

Your Career at Kantox

At Kantox, you’ll have the opportunity to work on high-impact projects and collaborate with senior stakeholders. As a fast-growing organisation, you’ll deepen your technical skills and take ownership of impactful tasks, gaining visibility with senior leadership and exposure to cross-functional projects. Growth will depend on your initiative and the evolving needs of the business.

What we offer

• Sponsored learning budget
• Free private health insurance
• Free Spanish, English, and French lessons
• Relocation package if needed
• Flexible working hours with an intensive Friday schedule
• 31 days of annual vacations
• Gym discounts and free sports activities
• Restaurant Ticket with a monthly credit and regular cross-team lunches
• Fresh fruit and unlimited coffee ☕
• Pizza Fridays 🍕
• Beautiful office with incredible 360-degree views of Barcelona
  

Our Culture

• An environment of innovation, accountability, and constructive feedback
• A diverse and multicultural team of over 40 different nationalities
• Grow your role and build your career with our learning and development opportunities
• A collaborative and inclusive culture of sharing and teamwork — build connections for life
  

💬 “The culture and the people at Kantox make me want to recommend Kantox as a place to work. There is a good balance between learning and growing and support from fellow team members. I feel like the people are very welcoming and make Kantox an easy place to feel at home.”

About Kantox

Kantox is a leading fintech company developing sophisticated Currency Management Automation software solutions that help companies automate their foreign exchange processes and leverage currencies for growth.

We are a 200-person strong team split between London and Barcelona. We’ve raised over €30 million and became profitable in 2018. Clients in 75+ countries have already exchanged more than USD $18 billion with us!

In October 2022, BNP Paribas signed an agreement to acquire Kantox. We continue to operate as an independent company, now backed by the experience and scale of one of Europe’s largest banks.

Our Commitment to Diversity, Equity & Inclusion

Kantox is deeply committed to diversity, equity, and inclusion, both in our hiring practices and in our day-to-day employee experience.

We are proud to be an equal opportunity employer and encourage applicants from all backgrounds to apply, regardless of race, religion or belief, gender identity, age, marital status, or disability status.