We are looking for a Senior Staff Mobile Engineer to join our P2P & Fiat team, where you will own the mobile engineering for OKX’s peer-to-peer trading and fiat payment experiences across multiple markets. This is a high-ownership role sitting at the intersection of mobile engineering and cross-border payments—you will work closely with compliance, legal, and regional business teams to build localised, regulation-aware payment flows for users across Southeast Asia, LATAM, MENA, and beyond.
You bring deep familiarity with P2P trading mechanics, cross-regional fiat payment integrations, and the compliance considerations that govern them. You are also fluent in AI-assisted development and bring the discipline to build, maintain, and continuously improve your own AI engineering workflows.
- Own the mobile engineering for P2P trading flows, including trading channel mechanics, payment methods, and end-to-end buy and sell transaction journeys.
- 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 comply with local and international regulatory requirements, including KYC tiers, transaction limits, and regional compliance 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, clearly articulating trade-offs across delivery speed, maintainability, and compliance.
- Apply AI coding tools actively in your workflow—not only for code generation, but also 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 professional software engineering experience, including hands-on experience building and maintaining production mobile applications. Level will be calibrated based on technical depth, scope, and demonstrated impact.
- Proficiency in either iOS development using Swift or Objective-C, or Android development using Kotlin or Java.
- Solid software engineering fundamentals, including data structures, algorithms, API design, testing, debugging, and system design.
- Experience delivering reliable mobile features and addressing practical challenges in areas such as performance, stability, architecture, or user experience.
- Ability to take ownership of engineering work, collaborate effectively with others, and drive solutions from design through production.
- Good judgment when balancing delivery speed, product requirements, technical quality, and maintainability.
- Experience in crypto, fintech, digital payments, or another regulated product environment.
- Experience building large-scale or multi-market consumer mobile applications.
- Experience in one or more areas such as mobile architecture, infrastructure, performance, security, or cross-platform development.
- Practical experience using AI-assisted development tools and validating AI-generated output.
- 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.
