Backend Engineer, Crypto

Job not on LinkedIn

🕒 March 27

🇺🇸 United States – Remote

💵 $140k - $170k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

🔙 Backend Engineer

🦅 H1B Visa Sponsor

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Logo of OnePay

OnePay

501 - 1000 employees

💳 Fintech

🏦 Banking

₿ Crypto

💰 $300M Series unknown on 2025-01

Fintech • Banking • Crypto

OnePay is a U. S. -based financial technology company that provides consumer-facing banking and payment products through partner banks. The app offers checking/savings with early pay and high-yield savings, a credit-builder program and secured Builder Mastercard, a CashRewards card with Walmart-focused cashback, investing and cryptocurrency trading, a digital wallet, pay-later options, and free tax filing for customers. OnePay partners with Coastal Community Bank, Lead Bank, Synchrony, and other providers for banking, card issuance, lending, and custody services; it is not itself a bank.

📋 Description

• Build and maintain backend services that enable our crypto product • Design APIs and event-driven architectures to handle high-volume transaction processing securely and efficiently • Partner with platform and infrastructure engineers to ensure scalability, observability, and resilience • Contribute to documentation, tooling, and best practices that raise the bar across our engineering organization

🎯 Requirements

• 5+ years of professional experience in backend or distributed systems development • Proven success building production-grade APIs and financial services at scale • Proficiency in Node.js or similar modern backend frameworks (TypeScript, NestJS, Go, or Java) • Familiarity with cloud-native architecture (Kubernetes, AWS) and event-driven or microservice-based systems • Strong communication and collaboration skills across product and platform teams • Drive and proactivity – everyone here is a builder and executor

🏖️ Benefits

• Competitive base salary, stock options, and health benefits from Day 1 • 401(k) plan with company match • Remote-friendly (US), flexible time off (FTO), and opportunities for growth • A high-growth, mission-driven, inclusive culture where your work has real impact

Apply Now

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