Software Engineer, Core Product
Core
Design, build, and scale backend systems for card issuance, spend limits, approvals, policy enforcement, and real-time insights to automate company spend.
Role type
Senior backend engineer (payments/finance infrastructure)
Builds
Core card and expense workflows, approval engines, and spend control systems
Domain
Fintech, payments, financial infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
backend systems design, API design, Python/Go/TypeScript, PostgreSQL, AWS, observability, distributed systems, financial transaction processing
Preferred skills
fintech/payments experience, AI/rule-based automation, ERP/accounting integrations, security/risk/compliance domains
Technologies
Python, Go, TypeScript, PostgreSQL, AWS
Responsibilities
Design and scale backend systems for spend controls and card transactions; integrate with internal AI platform for policy enforcement; own projects end-to-end from architecture to deployment; partner with Product Platform and Integrations teams; improve transaction and policy infrastructure for performance and resilience
Seniority
Mid-level to Senior, hands-on IC