Financial Administrative Assistant

Who we are:

Burson, part of WPP, is the global communications leader built to create value for clients through reputation. With highly specialized teams, industry-leading technologies and breakthrough creative, we help brands and businesses redefine reputation as a competitive advantage so they can lead today and into the future. When you work at Burson, you are part of a global community of lifelong learners who thrive at the edge of innovation.

WPP (LSE/NYSE: WPP) is the trusted growth partner for the world’s leading brands. We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. For more information, visit WPP.com 

For more information visit bursonglobal.com and follow us on LinkedIn and Instagram.

We´re always on the lookout for spectacular talent. Currently at Burson we are looking for a Client Financial Analyst to join our team in Madrid. 

What you’ll do: 

• Own client billing end-to-end: prepare, validate, and issue invoices; reconcile with contracts/POs; and follow up on outstanding balances.  

• Analyze project performance (budget vs. actuals, margins, timelines), identify variances, and recommend corrective actions. 

• Manage operational platforms, ensuring data quality, process consistency, and smooth workflows.  

• Conduct expense analysis: categorize and track spend, monitor cost drivers, and support accruals and month-end closing. 

• Perform revenue analysis: track and forecast revenue, support revenue recognition, and surface trends and insights for decision-making. 

• Deliver international reporting. 

 What will contribute to your success: 

• 2–3 years of experience in a similar analytical role. 

• Excellent spoken and written Spanish and English (C1–C2). 

• 
  

  Proactive and solutions-oriented: you anticipate billing and reporting needs, streamline platform processes, and turn analysis into clear, actionable recommendations. 

  
  


• Ability to thrive in cross-functional, dynamic environments. 

#LI-PS1