AI Security Engineer

We are At Cross River, we're building the financial infrastructure that powers global innovation. With our cutting-edge suite of embedded payments, cards, and lending solutions, we enable millions of businesses and consumers to transact seamlessly and securely. With 900+ employees worldwide and an R&D center of over 160 employees in Jerusalem - we’re reshaping how financial technology is developed and delivered. .

Requirements: What You Bring to the Table • 5+ years in Security Engineering/AppSec/Cloud Security (or similar), including 1–2+ years securing AI/ML or data‑intensive systems (GenAI preferred). • Hands‑on experience with AWS and/or Azure and modern app stacks (Python/TypeScript, REST/gRPC, containers/Kubernetes, IaC such as Terraform). • Practical understanding of LLM attack surfaces (prompt injection, context and goal poisoning, data leakage via tools, training/fine‑tune poisoning, model supply chain) and mitigation patterns. • Experience assessing agentic architectures (LangGraph, CrewAI, or similar) and AI coding assistants (Claude Code, GitHub Copilot) for secure enterprise deployment. • Familiarity with identity and access for AI workloads (OAuth2/OIDC, service principals, role tokens, PIM), and secure secret management/KMS. • Experience implementing observability/telemetry and routing findings to SIEM; comfort balancing privacy with traceability. • Ability to translate controls into developer-friendly libraries, docs, and CI/CD checks. • Comfort working in a regulated environment and mapping controls to frameworks (FFIEC, SOC 2, PCI DSS). • Strong written communication in English and Hebrew. Nice to have • Financial services background or other high‑assurance domains. • Exposure to Duende IdentityServer, SSO/SCIM, and enterprise authorization patterns. • Familiarity with guardrail tooling (e.g., Azure AI Safety features, Amazon Bedrock Guardrails) and policy engines (OPA/Rego). • Prior work in AI red‑teaming or safety evaluation harnesses; contributions to OSS or published talks.