Backend Engineer - Card Transaction Processing
EtherFi — Tracked from its ashby job board
About the role
About us:
Ether.fi http://Ether.fi is one of the largest crypto companies in the world. We have over $10B in assets under management and a team of 30 almost all technical staff. We’ve been profitable day one and are focusing on building real consumer applications.
The future we envisage is true on-chain banking. Our current products; Stake, Liquid, and Cash enable users to earn yield in a variety of DeFi strategies, and spend their assets in the real world with our credit cards. You can view public analytics on Dune for Cash https://dune.com/ether_fi/etherfi-cash and Stake https://dune.com/ether_fi/etherfi.
Position overview:
We’re looking for a senior full backend software engineer to own core backend architecture, card transaction processing and high availability. You will belong to a key engineering team focusing on delivering distributed, scalable and robust backend systems. Everything from card transaction processing, low latency apis, microservice architectures and on-chain data indexing. Anything that a neobank would build is on our roadmap.
What you’ll do:
- Own core areas of our backend systems, and extend current functionality to improve throughout and latency
- Design, develop, and optimize scalable transaction processing services to support high-throughput, low-latency financial transactions.
- Tackle the challenges in user frictions for their card transactions being declined
- Drive improvements in our Cloud Infrastructure, CI/CD pipelines, automation, observability, and monitoring systems.
What we are looking for:
- Strong fundamentals in software engineering and problem solving
- You have shipped impressive products with thousands of real users
- 5+ years of professional coding experience
- Drive, willingness to work hard and go the extra mile. We are a highly ambitious, driven team with audacious goals, and we work very hard to make them a reality
- Plus if you are experienced in credit card transaction processor such as Paymentology, Episode 6, etc.
- Plus if you are experience in card issuing side
Perks and benefits:
- Competitive salary, performance-based incentives, and token allocation grant
- Opportunity to work on multi-billion dollar products as part of a small team
- Health, dental, and vision insurance plans
- Global team with opportunity for travel and working out of our 3 offices around the world
- 4 weeks work from anywhere
- Exciting company events and team-building off-sites
What the index says about this role
- First seen by JobLarper — Aug 2, 2026, 6 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
- What Backend Engineer roles ask for — across 378 indexed openings: Backend (100%), REST/APIs (69%), Cloud (57%), Go (47%), SQL (42%). This posting names Backend, REST/APIs, Go.
- EtherFi is hiring actively — 7 open roles indexed.
Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.
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