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Backend Engineer - Card Transaction Processing

EtherFi — Tracked from its ashby job board

New York · Cayman · Denver Remote Mid $170K – $200K • Offers Equity • Offers Bonus Posted Apr 3, 2026
GoREST/APIsBackend

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.

⚡ JobLarper watched this role appear on EtherFi's official board on Apr 3, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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