Senior Software Engineer

Senior/Staff Backend Engineer | AI Fintech | $170k-$240k + Equity | SF or NYC

We'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 merchants
• Scaling core platform services to support a growing and diverse customer base
• Designing microservices architecture and core libraries that other engineers build on
• Owning end-to-end delivery of key features - from tech stack decisions through to deployment
• Mentoring engineers and leading projects as the technical owner

What they're looking for:

• 6+ years in software engineering, with at least 2 years using Go or Java in production
• Experience on platform teams with meaningful contributions to system architecture
• Comfortable working with AI workflows
• Clear communicator who can lead a team and work cross-functionally

Compensation: $170,000 - $240,000 base + equity

Location: Hybrid - SF or NYC (3 days/week in office)