Principal​/Senior Mobile Engineer, CEX

Overview

OKX will be prioritising applicants who have a current right to work in Singapore and do not require OKX's sponsorship of a visa.

OKX is a leading crypto exchange and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). We are trusted by hundreds of large institutions and backed by Proof of Reserves. Our offices globally share core values:
We Before Me, Do the Right Thing, and Get Things Done. OKX is part of OKG, a group delivering blockchain value through products like OKX, OKX Wallet, and OKLink.

Information about official vacancies and recruitment privacy is available on our careers site.

The CEX Trading Mobile Team owns the trading experience for OKX App, building real-time market data infrastructure—from live quotes and K-line charting to the full suite of trading scenarios. We value engineering quality, maintain high standards for architecture, and invest in knowledge-sharing and training. The team is exploring AI integration, including large language models, on-device inference, and intelligent agents to reshape the trading experience.

If you enjoy solving hard technical problems at scale in a fast-moving crypto environment, this is the team for you.

• Own the technical design and delivery of trading market data features for the OKX App, including real-time quotes and K-line charts.
• Lead product development, optimization, and ongoing maintenance; participate in product requirement discussions and define technical solutions that safeguard performance, stability, and user experience.
• Refine technical architecture, stay informed on industry trends, and grow the team's engineering capabilities.
• Organize and participate in technical training and knowledge-sharing sessions to elevate technical proficiency.
• Coordinate cross-functional resources to keep projects on track and ensure high-quality feature launches.
• Continuously improve user experience, performance, and architecture of owned modules.
• Explore and drive the integration of AI into business scenarios to enable product and technology innovation.

• Hands-on AI engineering/pipeline development experience — Solid understanding of LLM fundamentals, prompt engineering, RAG, and core agent concepts; proven ability to deliver end-to-end AI workflows/pipelines.
• Track record of leading mid-to-large-scale projects — High standards for technical architecture and engineering quality.
• Trading business background — Client-side development experience at a crypto exchange, brokerage, or fintech app; familiarity with order matching, market data display, and asset management.

• Native iOS or Android development background — Strong mobile engineering foundation with knowledge of platform architecture, performance optimization, and release processes.
• Client-side team management experience — Led a client-side team of 5+; mentoring, cross-team collaboration, and technical review.
• On-device AI or cross-platform experience — On-device AI inference, multimodal client features, or cross-platform architecture (Flutter/React Native).

• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants

Note:

All official OKX vacancies are published on this website. If in doubt, apply directly through our official careers website. Information collected as part of the recruitment process is subject to OKX's Candidate Privacy Notice.