I knew the obvious answer (interest on balances) but fumbled when trying to go deeper.
Start by acknowledging that credit card companies like Avant operate in a complex ecosystem with multiple revenue streams. Structure your answer by categorizing revenue into interest income, fees, and other sources, then briefly explain each. Finally, tie it back to how technology and product decisions can impact these revenue streams, showing your understanding of the business context.
Pro tip: Demonstrate awareness that as a software engineer, your work can directly influence revenue through features like fraud detection, personalized offers, and seamless payment experiences. Mention that optimizing these areas can reduce costs and increase customer lifetime value.
Explain that the primary revenue source is interest charged on outstanding balances, especially for customers who carry a balance month-to-month. Mention that interest rates vary based on creditworthiness and market conditions.
Describe how credit card companies earn a small percentage of each transaction from merchants, known as interchange fees. This is a significant revenue stream, particularly for cards with high transaction volumes.
List common fees such as annual fees, late payment fees, balance transfer fees, and cash advance fees. Note that these can be substantial but are often regulated.
Mention additional sources like selling ancillary products (insurance, identity protection), partnerships, and data analytics services. Also, note that some companies earn from promotional offers or rewards programs.
Connect how software engineering can optimize these revenue streams: e.g., building systems for real-time fraud detection to reduce losses, personalization engines to increase card usage, and efficient payment processing to maximize interchange.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.