Senior Software Engineer, Affirm Bank

Responsibilities

• Own bank systems end-to-end.
• Design, build, integrate, operate, and own incident response for the bank's core technical surfaces: cloud infrastructure, data platform, durable workflow orchestration, core banking configuration, CI/CD, networking, and the Bank ↔ Affirm Inc integration. Generalist breadth is expected.
• Be a force multiplier on a small team.
• Set and improve code review and design standards, lift the bar on examiner-readable documentation, and make the team you join more effective than the team you found. Every Senior IC on this team has outsized influence on what gets built and how.
• Ship AI-first. Lean on AI tools and agentic workflows as a multiplier for code, design review, runbook generation, and operations. Push yourself and your teammates on what an AI-leveraged team can deliver.
• Own vendor relationships. Carry one or more of the bank's third-party vendor relationships end-to-end — integration, operations, escalation, and audit. The bank's tech stack is intentionally vendor-leveraged, and ownership of those relationships is an engineering responsibility.
• Build for examiners.
• Partner with Legal, Compliance, Risk, and Internal Audit to factor in compliance from day one. Write decisions, designs, and runbooks to a standard that holds up under examiner and audit review.
• Own the operational posture of your work.
• Set up monitoring, alerting, runbooks, and the practices that keep the bank's systems reliable, observable, and audit-ready. The bank operates with a small operational footprint by design — help keep it that way. You will support the operations and availability of your team’s artifacts by creating and monitoring…

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