Chargeback Specialist

About the role

MADFIN is a London-based fintech company operating under a FCA-approved Electronic Money Institution (EMI) licence, delivering card acquiring tailored for fast-moving, high-growth businesses. It is expanding its Chargeback team and is looking for a specialist to oversee the chargeback and dispute process.

Key responsibilities

• Oversee the full chargeback and dispute lifecycle for Visa and Mastercard.
• Track fraud, chargeback and transaction activity to spot emerging risks and trends.
• Set up and maintain fraud prevention rules and merchant controls.
• Ensure compliance with Visa and Mastercard monitoring programmes and scheme thresholds.
• Investigate suspicious activity and coordinate corrective action with merchants and internal teams.
• Exchange information with related departments and produce fraud and chargeback reports, helping to improve and automate related processes.

Required profile

• At least 1 year of experience in fraud prevention, chargeback and dispute management, or a related role in payments, fintech, acquiring or a payment service provider.
• Experience working with VROL and Mastercard.
• Good understanding of Visa and Mastercard acquirer dispute processes, fraud monitoring programmes and scheme requirements.
• Familiarity with fraud prevention tools, transaction monitoring systems and merchant controls.
• Good command of written and spoken English.

Required skills

• Experience analysing card transactions, CNP fraud and chargeback data to identify patterns and risks.
• Strong investigative, analytical and problem-solving skills with attention to detail.
• Confident communication with merchants and cross-functional teams.
• Proficiency in Microsoft Excel or Google Sheets; experience with reporting or data analysis tools such as Grafana is an advantage.

What we offer

• Competitive salary based on experience, contribution and performance-based bonuses.
• Flexible working conditions (on-site Riga or hybrid).
• Health insurance after successful completion of the probation period, including medical, mental health and dental coverage.
• Additional paid Wellbeing Days.
• A friendly, collaborative team culture.
• Company gifts for work anniversaries and birthdays.