ether.fi is hiring a Backend Engineer - Card Transaction Processing in Engineering — New York. The overview below is synthesized from the employer posting on jobs.ashbyhq.com: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.
About us
Company context from the listing:
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.
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.
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.
What you’ll do
Day-to-day scope for the Backend Engineer - Card Transaction Processing as described in the posting:
- 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
What the posting highlights about the offer:
- 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
Build a standout application
For the Backend Engineer - Card Transaction Processing at ether.fi, reviewers look for concise evidence over buzzwords. Mirror the language of the posting sparingly, quantify support or delivery outcomes, and show how you handled ambiguity, time-zone collaboration and user empathy. Keep your resume to impact, keep your cover note to one page, and link to artifacts — tickets resolved, docs shipped, dashboards owned — that prove you can operate in a fast-moving Web3 team. Prepare to discuss a time you turned a confusing user report into a clear fix and how you measure quality in support and operations.
Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.
In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it.