Senior Software Engineer

Senior/Staff Backend Engineer | AI Fintech | $170k-$240k + Equity | SF or NYCWe're hiring on behalf of a well-funded Series A fintech building AI-powered infrastructure for financial institutions. The platform helps banks and credit unions modernise how they handle complex, high-volume operational workflows - replacing fragmented legacy tools with a single intelligent system.They've seen strong early traction with real enterprise customers and are scaling the engineering team to match.What you'll be doing:Building and maintaining reliable backend systems that integrate with credit card networks, banking platforms, and merchantsScaling core platform services to support a growing and diverse customer baseDesigning microservices architecture and core libraries that other engineers build onOwning end-to-end delivery of key features - from tech stack decisions through to deploymentMentoring engineers and leading projects as the technical ownerWhat they're looking for:6+ years in software engineering, with at least 2 years using Go or Java in productionExperience on platform teams with meaningful contributions to system architectureComfortable working with AI workflowsStrong fundamentals: algorithms, data structures, distributed systems designClear communicator who can lead a team and work cross-functionallyCompensation: $170,000 - $240,000 base + equityLocation: Hybrid - SF or NYC (3 days/week in office)