Job description
This is a remote position.
Our client is looking for aPayment & Billing Systems Engineerto take full ownership of their payment infrastructure and ensure reliability across their subscription-based platform. They operate within the tech and digital product space and have recently scaled their platform capabilities, supporting a growing global user base through subscription-driven services.
This role sits at the core of their revenue engine. Payment accuracy, subscription logic, and billing reliability directly impact both user experience and business performance, making this one of the most critical positions on the team.
Responsibilities
Take full ownership of the payment ecosystem, including Authorize.net as the primary processor and cryptocurrency payment integrations
Architect and manage the full subscription lifecycle, including activations, plan changes, cancellations, suspensions, and recovery flows
Develop robust webhook handling systems with strong guarantees around idempotency, retries, and event sequencing
Build and maintain billing reconciliation processes across multiple intervals, ensuring financial accuracy and traceability
Design workflows for refunds, disputes, and chargeback handling
Implement automated testing strategies, including integration and end-to-end tests for payment and subscription flows
Introduce fraud prevention mechanisms and enforce rate limiting on payment-related endpoints
Ensure compliance with payment security standards and best practices, including PCI-related requirements
Requirements
Proven, hands-on experience working directly with Authorize.net in production environments (Accept Suite, AIM, ARB, CIM, or Transaction APIs)
Experience building a complete payment system from scratch that processes real user transactions
Minimum of 3 years developing payment or billing systems in live environments
Deep understanding of subscription lifecycle management and complex edge cases
Strong experience with financial reconciliation processes and audit tracking
Solid backend engineering skills using Node.js and TypeScript
Experience with asynchronous workflows or job orchestration tools
Qualifications
Familiarity with distributed systems and handling failure scenarios in payment flows
Experience working with PostgreSQL and Redis
Exposure to Temporal or similar workflow orchestration tools
Understanding of crypto payment integrations (Solana, Ethereum, Polygon) is a plus
Knowledge of NestJS and PCI-DSS standards is considered an advantage
Benefits
Full-time, 100% remote opportunity
Work on a high-impact system directly tied to company revenue
Exposure to cutting-edge technologies including Web3 payments
Opportunity to own and scale a critical infrastructure component
Collaborative, engineering-driven environment with strong technical ownership
Originally posted on Himalayas
Who can apply
Eligible countries: United States. Accepted UTC offsets: UTC-10, UTC-9, UTC-8, UTC-7, UTC-6, UTC-5, UTC+14. Review the full description for employer-specific work authorization, residency and schedule requirements.