Our client processes serious subscription volume, and every renewal, plan change, and upgrade has to resolve into the right charge, the right credit, and the right event — every time — or a customer’s order doesn’t ship. You’ll work in the backend of that system: subscription and renewal logic, credit ledgers, payment events, and webhook reliability.
The core stack is TypeScript (Google Cloud Functions) alongside Go services — you’ll live mostly in TypeScript, and we’ll teach you the Go you need. If you’ve built billing, checkout, or transaction systems in Node/TypeScript and sweat correctness, this role was written for you.
What You’ll Do
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Build the money logic — subscription lifecycle, renewals, credits, and plan-change machinery that decides what a customer owes and what happens next.
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Guard the signal — every transaction emits a payment event that gates fulfillment; you’ll treat event correctness and webhook reliability as the core of the job.
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Integrate the stack — work with payment processors and orchestration APIs, handling auth/capture, refunds, retries, and edge cases cleanly.
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Test like it’s load-bearing — automated coverage written alongside the code; partial credits and multi-cycle renewals have too many edge cases for manual QA.
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Close the loop when needed — comfort touching the React surfaces your APIs feed is a plus; deep frontend work isn’t the job.