
The all-in-one cryptocurrency trading platform
OKX is a leading cryptocurrency exchange headquartered in Mahe, Seychelles, serving over 50 million active users across 180 countries. The platform offers a comprehensive suite of services, including crypto trading, NFT marketplaces, and decentralized finance (DeFi) products. With a commitment to se...
OKX provides a comprehensive insurance package covering medical, dental, vision, disability, and life insurance. Employees enjoy paid parental leave, ...
OKX fosters a culture focused on accessibility in cryptocurrency trading, aiming to demystify the crypto space for users of all levels. The company va...

OKX • Hong Kong, Hong Kong SAR; Singapore, Singapore
OKX is seeking a Senior Application Security Engineer (iOS) to identify and address security vulnerabilities in code, systems, and networks. You'll work with tools and processes to enhance security posture and validate Bug Bounty submissions. This role requires expertise in iOS security and OWASP standards.
You have a strong background in application security, particularly in iOS environments, with a focus on identifying and mitigating vulnerabilities. Your experience includes using both manual review techniques and automated tools to assess security risks in code, systems, and networks. You stay updated on the latest offensive security techniques and application security threats, ensuring that you can suggest improvements to enhance the overall security posture of the organization.
You are skilled in managing and optimizing application security tools and processes, ensuring that alerts are effectively monitored and responded to. Your ability to produce detailed reports of your findings and present them to both management and technical teams demonstrates your strong communication skills. You have experience collaborating with development teams to integrate security practices into the software development lifecycle.
You are proactive in validating and responding to Bug Bounty submissions, ensuring that vulnerabilities are addressed promptly and effectively. Your analytical mindset allows you to assess security risks critically and implement best practices to prevent real-world attacks. You are committed to fostering a culture of security awareness within the organization, encouraging team members to prioritize security in their work.
Experience with threat modeling and risk assessment methodologies is a plus. Familiarity with blockchain technology and decentralized applications (dApps) can enhance your contributions to the team. You are open to continuous learning and adapting to new security challenges in the rapidly evolving crypto landscape.
In this role, you will be responsible for identifying and addressing security vulnerabilities in code, systems, and networks. You will conduct thorough manual reviews and utilize automated tools to assess security risks effectively. Your expertise will guide the management and optimization of application security tools, processes, and alerts, ensuring that the organization maintains a robust security posture.
You will validate and respond to Bug Bounty submissions, collaborating with external security researchers to address vulnerabilities swiftly. Staying informed on the latest offensive security techniques and application security threats will be crucial as you suggest improvements to enhance the organization's security measures.
Producing detailed reports of your findings will be a key part of your responsibilities, as you will present these findings to both management and technical teams. Your contributions will play a vital role in preventing real-world attacks and enhancing the overall security framework of the organization.
Collaboration with development teams will be essential as you work to integrate security practices into the software development lifecycle. You will foster a culture of security awareness, encouraging team members to prioritize security in their projects and initiatives.
At OKX, you will be part of a dynamic team that is committed to reshaping the future through blockchain technology. We offer a competitive salary and benefits package, along with opportunities for professional growth and development. You will work in a collaborative environment that values innovation and security, contributing to a mission that aims to create a fairer and more accessible society through crypto.
Join us in our journey to enhance security in the crypto space and make a meaningful impact on the future of finance. We encourage you to apply even if your experience doesn't match every requirement — your passion for security and willingness to learn are what matter most.
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