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# Backend Software Engineer

- **Company:** ONE STOP COLLECTIBLE CORP
- **Location:** New York, NY, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Audit Trail, Fault Tolerance, Job Scheduling, PostgreSQL, Node.Js, Next.js, TypeScript, ReactJS, State Machines, Backend, Build Tools, Graphql, Front End Software Development, Api Design, NestJS, Amazon Simple Queue Service (SQS), Docker
- **Published:** September 4, 2026
- **Apply:** https://startup.jobs/mural-pay-senior-backend-engineer-decircle-8657835

## About the Role

* 5+ years of experience as a backend engineer shipping production-grade systems
 * Node.js
 * NestJS
 * React
 * Typescript
 * GraphQL
 * Postgres
 * Prisma
 * AWS
 * Docker
 * US Citizen or green card
 * Visa sponsorship not available
 * In office with the team in New York/Denver (Cherry Creek) 4 days per week (Thursday optional WFH)

## Description

* Collaborate on API design: Work closely with the engineering team to help shape and evolve our API offering, ensuring frontend and backend integrations are robust, scalable, and developer-friendly.
 * Shape the future of our product, solve real-world use cases: Contribute directly to the design and development of core features, ensuring a seamless experience for users across the platform.
 * Build robust, resilient and maintainable systems that process global money movement: we hope you love state machines as much as we do. Accuracy is paramount when moving money, but so is our ability to build systems that can adapt to the new financial landscape easily.
 * Join us at our inflection point of growth: we are gaining substantial momentum… you would be joining us at a magical time of acceleration and growth.

Responsibilities

Although we've outlined some of the responsibilities for the role below, given we are a startup, you'll have the opportunity to touch on any other areas you would like to be involved in, including recruiting, customer discovery, product design, and more! Primarily, you will…

 * Architect and build asynchronous payment processing pipelines - including event queuing, job scheduling, webhook delivery, and failure recovery (SQS/SNS/Lambda), Vercel, Docker
 * Contribute in a full-stack manner to Mural's platform and API offerings
 * Build with a modern stack - TypeScript + React, NestJS + Postgres + Prisma, AWS
 * Design for idempotency, auditability, and eventual consistency across distributed payment workflows
 * Write & test high-quality code with a focus on correctness and fault tolerance - edge cases in payments have real consequences
 * Communicate implementation tradeoffs with a focus on performance, security, and observability
 * Integrate robust abstractions for payment orchestration that minimize complexity and ensure extensibility
 * Work directly with our CTO and engineering leadership to develop our codebase and set a high quality bar for the rest of the team


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