Web3 Jobs & Crypto Jobs Where crypto teams hire. Where builders get found.
The #1 crypto-native job board for web3 jobs, crypto jobs & blockchain vacancies. Every role in the ecosystem — dev, design, marketing & more. Remote-first at top protocols, DAOs & companies.
By using web3vacancy you agree to our Terms of Service and Privacy Policy.
Latest Crypto Job Vacancies
No applications. Teams find and message you directly.
Join OKX as a Staff Mobile Security Engineer to identify and mitigate security vulnerabilities in mobile applications. Work closely with development and compliance teams to ensure security is embedded at every layer of the mobile stack.
At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.
- Identify and address security vulnerabilities in mobile code, systems, and networks through manual review, automated tooling, and threat modelling.
- Manage and optimise application security tools, processes, and alerts to maintain a strong security posture.
- Validate and respond to Bug Bounty submissions, triaging findings and coordinating remediation with engineering teams.
- Produce detailed security findings reports and present them to both technical and management audiences, contributing to real-world attack prevention.
- Collaborate with development teams to implement and champion secure coding practices across iOS and Android platforms.
- Apply AI tools to accelerate security research, automate vulnerability detection workflows, and improve the efficiency of threat analysis.
- Work alongside operations and compliance teams to ensure security is a consistent priority across the organisation.
- Participate in incident response and management activities.
- Stay current on the latest offensive security techniques, application security threats, and industry best practices.
- 5+ years of experience in mobile application security or offensive security, with hands-on expertise in iOS and/or Android platforms.
- In-depth understanding of security risks, vulnerabilities, and concepts in mobile and web applications.
- Proficient in code review across Kotlin, Swift, TypeScript, or JavaScript, with a strong grasp of application security threats.
- Able to create proof-of-concepts (PoCs) to demonstrate vulnerabilities, review patch code for adherence to standards, and collaborate with repository owners on remediation.
- Actively uses AI tools in your security engineering workflow — including building AI-leveraged workflows and codifying repeatable agent skills so tools like Claude Code or Codex deliver reliably on real production work.
- Strong analytical and problem-solving abilities with excellent verbal and written communication skills.
- 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!