Accounts Receivable Intern (m/f/d)

Are you motivated and looking to gain hands-on experience in international finance operations? Join SIXT's dynamic Accounts Receivable team in Lisbon and take ownership of key financial processes for the French market. You will work closely with experienced colleagues across a fast-paced, global organization and contribute directly to the efficiency of our billing and collections activities.

YOUR ROLE AT SIXT

• You process and manage incoming payments, ensuring accurate allocation to customer accounts in line with French market standards
• You monitor outstanding receivables, follow up on overdue invoices, and coordinate with customers and internal stakeholders to resolve payment discrepancies
• You assist with the reconciliation of customer accounts, identifying and correcting mispostings or open items
• You support the preparation of regular AR reports, ageing analyses, and KPI dashboards for the French market
• You communicate with customers, sales teams, and external partners regarding billing queries, credit notes, and payment terms
• You contribute to month-end closing activities, including balance confirmations and account reconciliations

YOUR SKILLS MATTER

• Academic background Currently enrolled or recently finished a Bachelor's or Master's program in Finance, Accounting, Business Administration, Economics, or a related field
• Accounting knowledge Solid understanding of basic accounting principles and financial processes
• Tools Proficient in Microsoft Excel; experience with SAP or similar ERP systems is a plus
• Mindset Strong analytical mindset with a high level of attention to detail and accuracy
• Soft skills Self-motivated, well-organized, team player and able to manage multiple tasks in a deadline-driven environment
• Language Fluent in English (written and spoken), with knowledge of French being a plus

WHAT WE OFFER

• A Global Tech Hub in Lisbon Join a thriving international tech community and work alongside engineers, product experts, and business teams who turn ideas into real impact. Our hubs at Factory Lisboa in Beato and ARTs Lisboa in Parque das Nações are where great tech gets built

• Learning & Knowledge Exchange Level up through regular events with internal and external speakers. We value curiosity, continuous learning, and open exchange – across teams, disciplines, and borders

• Flexible Work Setup Two office days a week, flexible hours, and modern spaces built for both deep focus and team collaboration – work the way that brings out your best

• Time Off & Wellbeing Enjoy competitive vacation days, your birthday off, a volunteer day, and private health insurance

• Practical Everyday Benefits Get a yearly Coverflex allowance and a daily meal allowance to make everyday life a little easier

• SIXT Perks Get exclusive rates on all SIXT services, with special discounts extended to your family and friends. Because great perks are even better when you can share them

About us:

We are a globally leading mobility service provider with a revenue of €4.00 billion and around 9,000 employees worldwide. Our mobility platform ONE combines our products SIXT rent (car rental), SIXT share (car sharing), SIXT ride (taxi, ride, and chauffeur services), and SIXT+ (car subscription), giving our customers access to our fleet of 350,000 vehicles, the services of 4,000 cooperation partners, and around 5 million drivers worldwide. Together with our franchise partners, we are present in more than 110 countries at 2,000 rental stations. At SIXT, top-tier customer experience and outstanding customer service are our highest priorities. We believe in true entrepreneurship and long-term stability and align our corporate strategy with foresight. Get started with us and apply now!