Senior Platform Security Engineer

**Job Description Overview:** The ASUS Robotics \& AI Center is seeking a Platform Security Engineer to join our global research and development team. This role contributes to the security posture of our cloud\-based platform, spanning application hardening, infrastructure security, and the day\-to\-day practices that keep our systems secure as they scale. We are looking for an engineer with hands\-on experience in application and cloud security, a proactive mindset for identifying and mitigating risk, and the ability to collaborate effectively across a multidisciplinary engineering team. The ideal candidate is a strong individual contributor who is eager to deepen their expertise in security architecture while working alongside experienced engineers across our Boston and Taipei offices. **Essential Duties and Responsibilities:** * Contribute to application and infrastructure security across the platform, supporting production launch and long\-term scaling. * Help harden authentication (OAuth/session handling) and API authorization patterns, including multi\-tenant access control. * Configure and maintain IAM policies, service accounts, and least\-privilege access controls across cloud infrastructure. * Secure data flows including file uploads, signed URLs, database access, and secrets management. * Set up and maintain security monitoring, logging, and alerting systems. * Build and maintain security tooling integrated into CI/CD pipelines, including SAST, DAST, and dependency scanning. * Perform regular security assessments, dependency audits, and penetration testing. * Support incident response and contribute to root cause analysis. * Collaborate with the engineering team on secure development practices and help document security controls and incident response procedures. **Knowledge and Skills:** * Familiarity with cloud security on GCP or equivalent platforms, including IAM, VPC, IAP, Secret Manager, and Cloud Armor. * Solid understanding of OAuth, sessio