Senior Software Engineer

NMI is building a mature, product-oriented Reliability Engineering function, and we’re looking for a Senior Software Engineer to play a key role in that evolution. This role sits on the Reliability Engineering team, which focuses on improving the reliability, performance, and operational maturity of critical platform services. The team’s mission is to move the engineering organization from reactive incident response toward intentional, engineered reliability through strong systems, tooling, and standards. As a Senior Engineer, you will operate beyond a single service or codebase, designing and building reliability frameworks, platform capabilities, and guardrails that improve uptime, observability, and operational confidence. This is a highly hands-on role with strong expectations around technical leadership, ownership, and delivery. About NMI NMI, a global leader in payment technolo