Ether.fi

Engineer on ether.fi's credit card transaction team: reduce card declines and authorization friction, and build proactive fraud/risk defenses — rules, monitoring, scoring in Sardine, and internal tooling — plus hands-on investigation of live fraud cases. Needs 4+ years coding and strong data-querying instincts.

DeFi Fintech

Ether.fi

6 days ago

Senior Frontend Engineer

New On-siteCaribbeanSenior

Cayman Islands

Senior Frontend Engineer at Ether.fi, a large crypto/DeFi company building on-chain banking products (Stake, Liquid, Cash). Day to day: turning Figma designs into clean UX, planning and maintaining complex frontend components, and building DeFi integrations for client-side transaction signing with strong security practices.

Analytics DeFi Figma Web3

150K – 250K $

Ether.fi

last week

Security Engineer

Open 88d On-siteCayman islands

Cayman Islands

Hands-on security engineer at Ether.fi (a DeFi protocol) owning security operations end-to-end: EDR monitoring and incident response, daily ImmuneFi bug bounty triage, CI/CD and cloud infrastructure hardening, identity lifecycle management, and vendor management. Onsite full-time in the Cayman office, embedded with the engineering, infrastructure, and protocol teams.

Authentication AWS Blockchain CI/CD CircleCI +13 skills

ether.fi

last month

Senior Backend Engineer - Low-Latency Fintech APIs

Open 41d North AmericaSenior

United States

Senior Backend Engineer at ether.fi in New York builds and optimizes low-latency APIs for neobank transaction processing and scalable backend systems.

170K – 200K $

ether.fi

last month

Software Engineer - Android

Open 42d RemoteMENA, North AmericaFull-time

Build and maintain a secure, high-performance Android app for a crypto-native banking platform using Kotlin, Jetpack Compose, and modern architecture patterns.

Analytics Android API Authentication Blockchain +10 skills

ether.fi

last month

Android Engineer - Kotlin, Jetpack Compose, DeFi Apps

Open 42d RemoteNorth America

United States

Build and maintain Android apps for a DeFi company using Kotlin and Jetpack Compose, collaborating with cross-functional teams to deliver secure mobile experiences.

Android Jetpack

Ether.fi

4 months ago

Smart Contract Lead

Open 88d On-siteNorth AmericaContractLead

United States

About us: is an innovative, rapidly growing crypto-native financial platform on a mission to put users in control of their wealth—making it easy to save, earn, and spend crypto. Positioned as a leading decentralized…

Agile Blockchain Cryptocurrency Cryptography DeFi +4 skills

Ether.fi

5 months ago

Backend Engineer - Card Transaction Processing

Open 88d HybridNorth AmericaSenior

United States

About us: 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…

Analytics API Automation CI/CD Cloud +3 skills

Ether.fi

8 months ago

Fraud Lead (Scan Hunter)

Open 88d On-siteNorth AmericaLead

United States

About us 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…

Agentic AI AI DeFi Fintech Reverse Engineering +1 skills

Ether.fi

10 months ago

Senior Full Stack Software Engineer

Open 88d On-siteNorth AmericaSenior

United States

About us: 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…

Analytics DeFi Web3

Ether.fi

11 months ago

Smart Contract Engineer

Open 88d RemoteWorldwideContract

About us: is an innovative, rapidly growing crypto-native financial platform on a mission to put users in control of their wealth—making it easy to save, earn, and spend crypto. Positioned as a leading decentralized…

Blockchain Cryptocurrency DeFi Ethereum Smart Contracts +3 skills

Ether.fi

11 months ago

Front End Engineer

Open 88d On-siteNorth America

United States

About us: 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…

Analytics DeFi Figma Web3

Ether.fi

12 months ago

Customer Service Representative

Open 88d RemoteWorldwideFull-time

About Us: is an innovative, rapidly growing crypto-native financial platform on a mission to put users in control of their wealth—making it easy to save, earn, and spend crypto. Positioned as a leading decentralized…

Agile Blockchain Cryptocurrency DeFi Ethereum

Ether.fi

last year

KYC Analyst – Ether.fi Cash Program

Open 88d On-site

About is a leading non-custodial liquid staking protocol and DeFi ecosystem. With products like eETH, weETH, Liquid Vaults, and Cash, we’re building the rails that connect decentralized finance to everyday financial…

DeFi Fintech Rails

Ether.fi

last year

Senior Software Engineer - Backend

Open 88d On-siteNorth AmericaSenior

United States

About us: 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…

Analytics API Automation CI/CD Cloud +3 skills

Software Engineer: Credit Card/Fraud

Senior Frontend Engineer

Security Engineer

Senior Backend Engineer - Low-Latency Fintech APIs

Software Engineer - Android

Android Engineer - Kotlin, Jetpack Compose, DeFi Apps

Smart Contract Lead

Backend Engineer - Card Transaction Processing

Fraud Lead (Scan Hunter)

Senior Full Stack Software Engineer

Smart Contract Engineer

Front End Engineer

Customer Service Representative

KYC Analyst – Ether.fi Cash Program

Senior Software Engineer - Backend

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