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# Senior Backend Engineer, Payments

- **Company:** Day One Partners
- **Location:** United, WV, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, IOS Applications, App Store (IOS), Cloud Engineering, Software Quality, Code Review, Databases, Continuous Integration, Distributed Systems, PostgreSQL, MongoDB, Node.Js, Software Deployment, Software Engineering, Systems Architecture, TypeScript, Backend, Stripe, Api Design
- **Published:** November 5, 2026
- **Apply:** https://www.thejobnetwork.com/job/f894c27a-88df-43dc-8532-7b43f4aa1d65/senior-backend-engineer-payments

## About the Role

* 5+ years of professional backend software engineering experience, with a track record of building and operating scalable production systems.
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 * Strong production experience with Apple StoreKit 2, including in-app purchases, subscriptions, and integration with backend billing services.
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 * Deep understanding of server-side Apple payment infrastructure, including App Store Server APIs, server notifications, transaction verification, subscription lifecycle events, and reconciliation.
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 * Production experience with Stripe payments and subscriptions for a B2C product.
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 * Strong backend engineering fundamentals, including system design, distributed systems, API development, and cloud architecture.
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 * Experience building and scaling backend services in a startup, high-growth company, or fast-moving engineering environment.
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 * Ability to independently own complex technical projects from design through production deployment.
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 * Experience building payment and subscription infrastructure for consumer-facing iOS applications.
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 * Familiarity with Apple subscription renewals, refunds, billing retry flows, entitlement management, and App Store Server Notifications V2.
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 * Experience with MongoDB, PostgreSQL, or similar databases.

## Description

We're hiring a Senior Backend Engineer, Payments to join a profitable, high-growth consumer technology company building products used by a global audience. You'll join a backend engineering team responsible for building and scaling the infrastructure powering subscriptions, payments, and the broader member experience. This is a high-ownership individual contributor role for someone with deep experience in Apple StoreKit 2, server-side subscription billing, and scalable backend systems., * Design, build, and maintain scalable backend services supporting payments, subscriptions, and member lifecycle workflows.
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 * Own critical components of the payment infrastructure, including Apple StoreKit 2, App Store Server APIs, transaction verification, subscription management, and reconciliation.
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 * Drive technical projects end-to-end, from system architecture and implementation through testing, deployment, and production operations.
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 * Collaborate with engineering, product, and cross-functional teams to deliver reliable, user-focused features.
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 * Improve backend performance, reliability, and maintainability through code reviews, CI/CD, observability, and engineering best practices.
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 * Leverage AI development tools to improve engineering productivity while maintaining strong technical judgment and code quality.
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