The opportunity
Affirm is building its own bank — and this role sits in the engineering team that runs it. We're looking for a Senior Software Engineer to join a deliberately small, AI-native team that owns the systems behind Affirm's bank: vendor-integrated banking infrastructure, durable…
What you'll do
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.
What they're looking for
- Influence beyond the team. Communicate technical strategy, tradeoffs, and: constraints clearly to non-engineering stakeholders (bank executives, Compliance, Risk), and engineers outside the bank. The bank doesn't operate in isolation, and the relationships you build with non-bank engineers shape how cleanly the integration boundary works.
- Help grow talent as the team grows. As new engineers join over time, they'll: join an engineering function whose practices and standards you helped establish. Provide feedback, mentor peers, and lead by example.
