We are looking for a Staff Mobile Engineer to join our P2P & Fiat team, where you will own the mobile engineering for OKX's crypto fiat on/off-ramp experience across offshore and international markets. This is a high-ownership role at the intersection of mobile engineering and cross-border payments — you will build and scale the end-to-end fiat-to-crypto conversion journeys that serve users across Southeast Asia, LATAM, MENA, and beyond.
You bring hands-on experience building crypto on/off-ramp products, deep familiarity with cross-regional fiat payment integrations, and the technical discipline to own complex, multi-step transaction flows in a consumer-facing mobile product. You are also fluent in AI-assisted development and bring the rigour to build, maintain, and continuously improve your own AI engineering workflows.
- Own the mobile engineering for the crypto fiat on/off-ramp experience — including quote flows, payment method selection, transaction status, and failure handling end-to-end.
- Build and maintain cross-regional fiat payment integrations — including local bank transfers, e-wallets, and third-party PSP integrations across markets such as Southeast Asia, LATAM, and MENA.
- Ensure mobile payment flows and user data handling are compliant with offshore crypto market requirements — including KYC tiers, transaction limits, and regional regulatory constraints.
- Collaborate closely with compliance, legal, product, and regional market teams to translate local regulatory requirements into reliable, user-friendly mobile experiences.
- Drive technical decision-making on payment architecture, articulating trade-offs clearly across speed, maintainability, and compliance.
- Apply AI coding tools actively in your workflow — not just for code generation, but to build and maintain repeatable personal AI development workflows.
- Mentor engineers on the team and contribute to a culture of ownership, technical rigour, and high engineering standards.
- 5+ years of native iOS or Android development experience, with a track record of owning high-stakes, multi-step transaction flows in consumer-facing mobile products.
- Hands-on experience building crypto token on/off-ramp products targeting offshore or international markets.
- Deep familiarity with cross-regional fiat payment integrations — local bank transfers, e-wallets, and third-party PSPs across markets such as Southeast Asia, LATAM, or MENA.
- Strong understanding of the full fiat-to-crypto conversion UX — quote flows, payment method selection, transaction status, and failure handling.
- Aware of compliance considerations in offshore crypto markets — KYC tiers, transaction limits, and regional regulatory constraints.
- Proficient in AI-assisted development — deep hands-on use of Claude Code, Codex, or equivalent code models in daily workflow, with the ability to independently build and maintain a personal AI development workflow including prompt engineering, toolchain integration, and agentic coding.
- Strong cross-functional communication — comfortable working with compliance, legal, product, and regional market teams to hold the line on engineering quality.
- Experience in high-growth emerging markets where fiat accessibility is a key driver of crypto adoption.
- Experience integrating with specific PSPs or payment rails commonly used in Southeast Asia, LATAM, or MENA markets.
- Familiarity with anti-fraud mechanisms in P2P or fiat payment contexts.
- Experience operating across multiple regulatory environments simultaneously.
- Background in fintech, crypto, or regulated consumer financial products.
- Competitive total compensation package
- L&D programs and Education subsidy for employees' growth and development
- Various team building programs and company events
- Wellness and meal allowances
- Comprehensive healthcare schemes for employees and dependants
- More that we love to tell you along the process!
Skills Required
- 8+ years of software engineering experience with production-quality mobile systems at scale
- Deep familiarity with P2P trading channels, payment methods, and buy/sell transaction flows
- Hands-on experience with cross-regional fiat payment integrations including bank transfers, e-wallets, and third-party PSPs
- Working knowledge of fiat channel compliance including KYC tiers, transaction limits, and regional regulatory constraints
- Proficient in AI-assisted development and able to build/maintain personal AI engineering workflows
- Strong cross-functional communication with compliance, legal, product, and regional market teams
- Ability to balance speed, quality, and compliance in a fast-paced environment
- Mobile development experience in iOS (Swift/Objective-C) or Android (Kotlin/Java)
- Experience integrating with specific PSPs or payment rails commonly used in Southeast Asia, LATAM, or MENA
- Background in fintech, crypto, or regulated consumer financial products
- Familiarity with anti-fraud mechanisms in P2P or fiat payment contexts
- Experience operating across multiple regulatory environments simultaneously
OKX Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about OKX and has not been reviewed or approved by OKX.
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Fair & Transparent Compensation — Pay is considered competitive or above market, especially in engineering, product, and legal roles across major hubs. This positioning is consistently cited as a major attraction for candidates.
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Healthcare Strength — Role descriptions indicate comprehensive medical, dental, vision, life, and disability coverage, with employer-paid premiums in some cases. Health coverage is highlighted alongside core benefits like PTO and parental leave.
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Wellbeing & Lifestyle Benefits — Allowances for education and fitness, meal perks and snacks, team-building budgets, and structured learning programs are described across locations. These extras enhance the total rewards package beyond base pay.
OKX Insights
What We Do
Founded in 2017, OKX is one of the world’s leading cryptocurrency spot and derivatives exchanges. OKX innovatively adopted blockchain technology to reshape the financial ecosystem by offering some of the most diverse and sophisticated products, solutions, and trading tools on the market. Trusted by more than 20 million users in over 180 regions globally, OKX strives to provide an engaging platform that empowers every individual to explore the world of crypto. In addition to its world-class DeFi exchange, OKX serves its users with OKX Insights, a research arm that is at the cutting edge of the latest trends in the cryptocurrency industry. With its extensive range of crypto products and services, and unwavering commitment to innovation, OKX’s vision is a world of financial access backed by blockchain and the power of decentralized finance.
