Epidemic Sound is looking for a Senior Software Engineer to join the Payments team in Stockholm — a small team that owns everything that happens when someone pays Epidemic Sound: checkout, subscriptions, invoicing, refunds, tax and payment provider integrations. The main initiative is a new purchase platform in Go: a greenfield subscription domain built alongside today's system, including a seamless migration of live paying customers. AI is part of the daily toolchain.

Key Responsibilities

Own payment and subscription services end to end: design, build, deploy and monitor them
Build the next generation of the purchase platform in Go, and move live subscriptions onto it safely
Build and maintain payment provider integrations, including compliance-heavy parts like 3DS and SCA
Work in the customer-facing purchase flow in the web codebase (TypeScript) when needed

Requirements

Several years building and running backend services in production, ideally where correctness mattered more than shipping speed
Strong in Go or Python, and happy to get productive in the other
Good in SQL and relational data modelling (Postgres)
Cloud experience, preferably Google Cloud, comfortable owning infrastructure (Kubernetes, Helm, Terraform)
Enough Type: Script and React to make changes in a shared frontend codebase, or a real interest in picking it up
Experience with payments, or a clear interest in it: subscriptions, billing, provider integrations, reconciliation

Nice to have

Migrated a billing or payment platform with live customers on it
Worked with PSPs, card networks, 3DS and SCA, or inside PCI scope
Experience building event-driven services using Pub/Sub or a comparable messaging system
Practical experience applying AI coding agents in production

Senior Software Engineer - Payments