ether.fi
Backend Engineer - Card Transaction Processing
About this role
Ether.fi, a leading crypto company with $10B+ in assets under management, is seeking a senior backend engineer to architect and optimize card transaction processing systems. You'll own core backend infrastructure, drive performance improvements, and build scalable solutions for their neobank platform serving thousands of users.
What you'll do
- Own and extend core backend systems to improve throughput and latency
- Design and optimize scalable transaction processing services for high-throughput, low-latency financial transactions
- Reduce card transaction decline rates and improve user experience
- Enhance cloud infrastructure, CI/CD pipelines, and monitoring systems
- Drive improvements in observability and automation across backend services
What they're looking for
- Backend software engineering and system design
- Distributed systems and microservice architecture
- High-performance transaction processing
- Cloud infrastructure and DevOps
- 5+ years professional coding experience
- Payment processing platforms (Paymentology, Episode 6, etc.)
- Card issuing systems
- API design and low-latency systems
Benefits
- Competitive salary with performance-based incentives and token grants
- Health, dental, and vision insurance
- 4 weeks annual work-from-anywhere flexibility
- Opportunity to work on multi-billion dollar products with a small technical team
- Global team with access to 3 international offices
- Company events and team-building off-sites
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ether.fi
Ether.fi is a crypto platform offering neobank and DeFi products with significant assets under management. The company is hiring backend engineers, frontend engineers, and fraud specialists to build scalable infrastructure, consumer-facing applications, and fraud detection systems.
- Website
- ether.fi
Likely interview questions
- Can you walk us through a high-throughput, low-latency transaction processing system you've designed? What were the key bottlenecks and how did you optimize for throughput and latency?
- Describe your experience with card transaction processing or payment systems. Have you worked with card processors like Paymentology or Episode 6, or on the card issuing side?