We are seeking a dedicated and hands-on Lead Security Engineer to spearhead our Red Team and Offensive Security initiatives. In this role, you won't just be running scans; you will be the primary architect of our adversarial simulation strategy, taking full ownership of penetration testing, red teaming, and the emerging frontier of AI Security.

What you'll be doing:

• Strategic Red Teaming & Pentesting

  • Define, execute, and manage the annual offensive security roadmap, including internal and external penetration tests.

  • Design complex red team campaigns that simulate real-world TTPs (Tactics, Techniques, and Procedures) to test our detection and response capabilities.

  • Beyond discovery, you will partner with engineering teams to provide actionable remediation guidance and validate fixes.

• AI Security Initiative

  • Lead security assessments for AI/ML deployments, focusing on prompt injection, data poisoning, model inversion, and membership inference attacks.

  • Integrate AI-specific security frameworks (e.g., OWASP Top 10 for LLMs, MITRE ATLAS) into our standard security lifecycle.

  • Develop specialized playbooks for "jailbreaking" and stress-testing our proprietary AI agents and infrastructure.

• Leadership & Mentorship

  • Evaluate and select third-party security vendors and bug bounty platforms to augment internal efforts.

  • Act as the subject matter expert for the HODs and engineering leadership on the evolving threat landscape.

  • Oversee the creation of custom scripts and automated offensive tools to scale our testing capabilities.

What we're looking for:

• 5+ years of working experience in related work roles mentioned above.

• Degree in Computer Science, Information Systems, Engineering or equivalent

• Understanding and/or experience working in a Cryptocurrency/Blockchain/Fintech/Finance Trading domain.

• Ability to translate technical security issues into clear actions for executives and engineers.

• Excellent communication, presentation and planning skills.

• Fluent written and spoken English.

  • Nice to have:

    • Prior experience in a crypto exchange, blockchain company, or high-risk trading platform.

    • Relevant certifications: leadership (CISSP, CISM, etc), offensive (OSCP, OSWE, etc), defensive (GSOM, GCIH, etc) and cloud security (CCSP, AWS).

What’s in it for you:

• MacBook or high-end laptop for working.

• Full coverage of social insurance.

• Premium health care for you and your family members.

• Full 100% salary during probationary period.

• Working in a professional, friendly, well-equipped workspace with both foreigners and Vietnamese.

• Extensive on job training; will always have chances to work with new emerging technologies.

• Friendly and fun start-up work culture.

Find out more about Coinhako here https://www.coinhako.com/ and don't forget to visit our Careers Page https://www.coinhako.com/join-us

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