Senior Software Engineer II, FAI
Core
Designing and operating real-time fraud detection, risk decisioning, and identity verification systems to protect the Instacart marketplace and ensure transaction trust.
Role type
Senior IC software engineer (fraud & identity systems)
Builds
Real-time risk decisioning systems, fraud detection pipelines, identity verification workflows, and trust services for millions of customers and shoppers.
Domain
Marketplace, fintech, fraud prevention, identity/KYC
Deliverable
production ML models | product features | infrastructure
Required skills
distributed systems, real-time decisioning, backend languages (Go/Java/Python), cloud infrastructure (AWS/GCP), data stores (Postgres/DynamoDB/Clickhouse/Redis), low-latency system design, privacy & security best practices, AI & agentic automation, mentorship
Preferred skills
trust & safety/fraud/risk/identity/KYC experience, ML model productionization, legal/policy compliance, third-party vendor management, experimentation platforms, marketplace/logistics/fintech background
Technologies
Go, Java, Python, AWS, GCP, Postgres, DynamoDB, Clickhouse, Redis
Responsibilities
Design and operate end-to-end FAI systems for fraud detection, risk decisioning, and identity verification; partner with Data Science/ML to productionize fraud models; run cross-functional programs to translate adversarial problems into technical plans; mentor engineers and raise technical standards; drive AI-first patterns into development and operational workflows; improve reliability, latency, and cost efficiency of trust services.
Seniority
Senior, hands-on IC with architectural leadership
