Software Engineer: Credit Card/Fraud

About this role

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## About us

[Ether.fi](http://Ether.fi) is one of the largest crypto companies in the world, with over $10B in assets under management and a team of ~50, almost entirely technical staff. We've been profitable since day one and are focused on building real consumer financial applications.

We believe the future of finance is true on-chain banking. Our products — Stake, Liquid, and Cash — let users earn yield through DeFi strategies and spend their assets globally through our credit card program. You can view our growth publicly on Dune ([https://dune.com/ether\_fi/etherfi-cash](https://dune.com/ether_fi/etherfi-cash))

## Position overview

We're looking for a strong engineer to join credit card transaction team in ether.fi and contribute to the success of credit card program and the risk systems that sit on top of it.

The first pillar is the transaction stack: card authorization and every decline that shouldn't have happened. You will look into what's causing the user frictions based on the declines transactions and come up with pro-active solutions to prevent them.

The second pillar is fraud and risk. Today our defense is largely reactive; you will make it proactive on both sides of the line. Build the rules, monitoring, and internal tooling, and also use them: pull the data yourself, investigate the cases, work out what the attacker actually did, and turn that into the rule that catches it next time.

You'll work closely with Product, CX, and Compliance, and directly with our card program and fraud vendors.

## What you'll do

• Improve the card transaction experience: hunt down and eliminate the causes of declines, failed authorizations, stuck holds, and the frictions users actually hit when they spend
• Make the card program better as a product; find where it breaks for real users, propose the fix, ship it
• Hunt fraud and abuse patterns: card testing, cashback farming, merchant abuse, friendly fraud, trial and force-post abuse, multi-account ...