OneApp
Backend Engineer, Crypto
About this role
OnePay is seeking a Backend Engineer for its Crypto team to design and maintain backend services that support safe digital asset transactions. The ideal candidate will have extensive experience in backend development, particularly with L2 blockchains, and will contribute to the scalability and resilience of the platform's financial services.
What you'll do
- Build and maintain backend services for crypto products
- Design APIs and event-driven architectures for secure transaction processing
- Collaborate with platform and infrastructure engineers for system resilience
- Enhance documentation, tooling, and best practices across engineering
What they're looking for
- 5+ years in backend or distributed systems development
- Experience with L2 blockchains
- Building production-grade APIs
- Proficiency in Node.js or similar languages
- Familiarity with cloud-native architecture
- Strong communication skills
- Proactive and driven
Benefits
- Competitive salary and stock options
- Health benefits from Day 1
- 401(k) plan with company match
- Flexible time off and remote-friendly work
- Opportunities for growth and development
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OneApp
OneApp builds a consumer fintech platform offering financial services like cash advances and banking transactions, backed by Walmart. The company is hiring software engineers, frontend engineers, mobile engineers, and support engineers to develop scalable, mobile-first financial products and customer-facing applications.
View all jobs at OneAppLikely interview questions
- Walk us through your experience building production-grade APIs that handle high-volume transaction processing. How did you approach scalability and reliability?
- Tell us about your experience with L2 blockchains. What projects have you worked on, and what challenges did you encounter?