Senior Software Engineer, AI Trading

Remote $224k–$268k senior 3 days ago full-time quality 8.6/10

Role in brief

OKX is seeking a Senior Software Engineer to build mobile trading systems for crypto on iOS and Android. This role involves end-to-end development, applying AI tools to enhance efficiency, and collaborating with various teams. Ideal for experienced mobile developers with a background in fintech or crypto who can deliver maintainable, production-quality code.

SwiftKotlinReact Native

About the role

This role focuses on designing and building mobile systems for crypto trading, covering both iOS and Android platforms. The work involves taking projects from architectural design through to launch, ensuring that solutions are scalable and informed by blockchain technology and market dynamics. A key aspect is delivering production-quality code with a strong emphasis on maintainability, proper documentation, and comprehensive test coverage.

The Senior Software Engineer will break down complex engineering tasks, collaborating with various cross-functional teams and identifying stakeholders to ensure project completion. This position also requires active participation in code reviews, providing and acting on constructive feedback. The engineer will serve as a subject matter expert within the mobile engineering team, offering consultation on domain-specific projects.

A significant part of this role involves leveraging AI coding tools to accelerate development, improve code quality, and optimize engineering workflows. Success in this position means consistently shipping high-quality code, effectively integrating AI for efficiency gains, and building strong relationships with internal stakeholders to influence decision-making through data-driven insights. The role also includes contributing to interviewing and onboarding new team members.

The annual salary for this position ranges from $223,611 to $268,333.

Skills that matter here

  • Swift: Proficiency in Swift is required for developing mobile applications on the iOS platform.
  • Kotlin: Proficiency in Kotlin is required for developing mobile applications on the Android platform.
  • React Native: Proficiency in React Native is required for cross-platform mobile application development.
  • AI tools: This role requires the ability to integrate and apply AI coding tools to improve development efficiency and code quality.
  • fintech, crypto, or Web3 environments: Experience in these environments is necessary to understand the specific domain and market dynamics of crypto trading products.

Who this role suits

  • A person who can independently manage complex engineering projects from design to launch.
  • Someone who is adept at integrating and leveraging AI tools to enhance development processes.
  • An individual who excels at communicating technical concepts to both technical and non-technical audiences.
  • A developer with a strong commitment to writing maintainable, production-quality code with thorough documentation and testing.

From the employer

What You’ll Be Doing

  • Design and build end-to-end mobile systems across iOS and Android, from architecture to launch strategy.
  • Understand and apply knowledge of crypto products, blockchain technologies, and market dynamics to deliver solutions at scale.
  • Ship production-quality code with an emphasis on long-term maintainability, with relevant documentation and test coverage.
  • Break down complex engineering projects into executable tasks and partner with applicable cross-functional teams.
  • Independently identify stakeholders and align cross-functional partners toward project completion.
  • Conduct code reviews and provide constructive feedback; action feedback from reviews of your own code promptly.
  • Apply AI coding tools to accelerate development, improve code quality, and optimise engineering workflows.
  • Serve as a subject matter expert within the mobile engineering team and provide consultation on domain-level projects.
  • Build relationships with internal stakeholders; share project updates and influence decision-making through data-driven insights.
  • Participate in interviewing and onboarding of new team members.

What We Look For In You

  • B.S. or M.S. in Computer Science or equivalent degree/experience.
  • Proven experience shipping production-quality mobile code on iOS and/or Android.
  • Strong proficiency in Swift, Kotlin, or React Native.
  • Experience working in fintech, crypto, or Web3 environments.
  • Demonstrated ability to integrate AI tools to optimise workflows and drive measurable impact — e.g. efficiency gains, quality improvements.
  • Ongoing AI skill development — prompt engineering, agent orchestration, staying current with emerging AI technologies.
  • Experience communicating technical concepts to non-technical audiences.

Perks & Benefits

  • 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!

Questions about this role

What is the remote work policy for this position?

This is a fully remote position.

What level of seniority is expected for this role?

This is a senior-level position.

What are the key technical skills required?

Key technical skills include strong proficiency in Swift, Kotlin, or React Native, and experience with AI tools for workflow optimization.

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Before you apply

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  • Never share seed phrases or private keys. No real job needs them.
  • Do not install software ("test tasks", "trading tools", "video call clients") sent during hiring.
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