Staff Mobile Engineer – Crypto Fiat On/Off Ramp

About the role

OKX is seeking a Staff Mobile Engineer to lead the development of its crypto‑fiat on/off‑ramp experience. You will own the mobile engineering of end‑to‑end conversion journeys that serve users across Southeast Asia, LATAM, MENA and other international markets.

Key responsibilities

• Own the mobile engineering for quote flows, payment method selection, transaction status and failure handling.
• Build and maintain cross‑regional fiat payment integrations such as local bank transfers, e‑wallets and third‑party PSPs.
• Ensure mobile payment flows and user data handling comply with KYC tiers, transaction limits and regional regulatory constraints.
• Collaborate with compliance, legal, product and regional market teams to translate regulatory requirements into user‑friendly experiences.
• Drive technical decisions on payment architecture, balancing speed, maintainability and compliance.
• Apply AI‑assisted development tools to improve code quality and workflow efficiency.

Required profile

• Proven experience building crypto on/off‑ramp products.
• Deep familiarity with cross‑regional fiat payment integrations.
• Strong ability to own complex, multi‑step transaction flows in a consumer‑facing mobile product.
• Fluency in AI‑assisted development and a disciplined approach to engineering.

Required skills

• Mobile development (iOS/Android or cross‑platform frameworks).
• AI‑assisted development tools (e.g., code generation assistants).
• Crypto fiat on/off‑ramp integration.
• Cross‑regional payment integration and compliance handling.

What we offer

• Opportunity to shape a high‑impact product in a leading crypto exchange.
• Collaborative environment with global teams.
• Access to cutting‑edge AI development tools.