Sr Security Engineer - NY

Photon

Full-time Computer Occupations
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Location
United States, United States, United States
Posted
July 02, 2026

Job Description

Senior Security Engineer β€” AI-Led Banker Workstation & Mobile Platform (Citi IB)

Role summary
Own security architecture and implementation for Citi’s AI-led banker workstation across mobile (hybrid/WebView + native modules) and desktop, with emphasis on offline authentication/MFA, encrypted offline data, headless CRM integrations, and LLM/agentic workflows in a highly regulated IB environment.

Key responsibilities
  • Offline Auth/MFA Architecture: Design and implement secure offline authentication and authorization aligned to Citi IAM (EPF/SSO/AD + MFA/BIND ID), including token lifecycle, biometric unlock patterns, recovery flows, and policy compliance.
  • Mobile Security Engineering: Secure the hybrid shell + WebView model, define secure bridging patterns for native modules, harden the in-house wrapper, and ensure safe storage and key management on device.
  • Offline Data Protec...