Staff Software Engineer, Mobile (P2P / Fiat)
Core
Staff Mobile Engineer owning the end-to-end fiat-to-crypto conversion journeys and cross-border payment integrations for OKX's P2P and Fiat team.
Role type
Staff Mobile Engineer (Fiat On/Off-Ramp)
Builds
Crypto fiat on/off-ramp mobile experiences, cross-regional payment integrations, and transaction flows for users in Southeast Asia, LATAM, and MENA.
Domain
Fintech / Cryptocurrency / Cross-border Payments
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Native iOS/Android development, complex multi-step transaction flow ownership, cross-regional fiat payment integration, regulatory compliance (KYC/limits), AI-assisted development workflow, technical decision-making, mentorship
Preferred skills
High-growth emerging markets experience, specific PSP/payment rail integration, anti-fraud mechanisms, multi-regulatory environment operation, regulated consumer financial products background
Technologies
iOS, Android, Claude Code, Codex, AI coding tools
Responsibilities
Own mobile engineering for crypto fiat on/off-ramp experience including quote flows and failure handling; Build and maintain cross-regional fiat payment integrations with local banks and PSPs; Ensure mobile payment flows comply with offshore crypto market requirements; Collaborate with compliance, legal, and regional teams to translate regulations into user experiences; Drive technical decision-making on payment architecture; Apply AI coding tools to build and maintain personal AI development workflows; Mentor engineers on the team
Seniority
Staff, high-ownership IC with mentorship