# Backend Engineer, Crypto

**Company:** [OnePay](https://hotfix.jobs/companies/onepay)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** $140k – $170k/yr
**Experience:** 5+ years
**Skills:** Node.js, TypeScript, Nestjs, Go, Java, Kubernetes, AWS, L2 Blockchains, APIs, Microservices
**Posted:** 2025-12-26

> Builds and maintains backend services for crypto products, designs secure APIs and event-driven architectures for high-volume transactions, ensures scalability with platform teams. Requires 5+ years backend experience, L2 blockchains, Node.js or similar, cloud-native tech.

## Job Description

## Responsibilities
- 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
- Experience with L2 blockchains
- 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

## Tools We Use
- **Node**, **TypeScript**, **NestJS** framework
- Microservice-oriented architecture on **Kubernetes** and **AWS**

## What We Offer
- 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

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**Apply:** https://hotfix.jobs/jobs/cb799073-8382-445d-b9c8-c2a8f33f7aa4
**Canonical:** https://hotfix.jobs/jobs/cb799073-8382-445d-b9c8-c2a8f33f7aa4