Senior Cloud Security Engineer

Apple Services Engineering (ASE), the team behind iCloud and Media services and the infrastructure that powers it, is looking for a Senior Security Engineer to partner with engineering teams working on new products and features. You will collaborate with developers, site reliability engineers, and security teams to protect ASE services and design a secure foundation for services at Apple. Your work will include full end-to-end security assurance activities including security architecture, threat modeling, some security testing, and risk management. You will be working with partner teams in security engineering, privacy, and offensive security to keep Apple's services secure for our users. If you love diving into different complex technical systems, sharing security improvements, and making security better, we want to talk with you! In this role, you will be the primary security team point of contact for several large engineering efforts. You will work with engineering teams throughout their development lifecycle. You will conduct security reviews and develop threat models and use the insights from these engagements to build standard methodologies. You will help define, automate and advocate for platform-wide security improvements. You will partner with your colleagues to raise the security bar for all engineering teams at Apple. As a technical lead responsible for the security of Apple's internet-facing services and backend infrastructure, you will be: Innately curious, listening for nuances and digging into details to understand systems and their weaknesses; Able to identify areas that are ripe for improvement and establishes appropriate security goals; Experienced and comfortable establishing relationships with teams to drive security improvements; Current on new security technologies, vulnerabilities, and methodologies; An excellent verbal and written communicator; Able to develop proof of concept systems to automate security recommendations, vulnerability discovery, and process workflows; Able to use data to drive security review efficiency and prioritize high-value security team engagement Responsible for security decisions impacting millions of users. Minimum Qualifications: 5 or more years conducting security reviews, threat modeling, tracking findings, and communicating risk to engineering and leadership Hands-on experience in cloud security engineering with demonstrated expertise in securing at least one major cloud platform (AWS, GCP, or AliCloud) in production environments Deep technical knowledge of cloud-native security controls including identity and access management (IAM), network security (VPCs, security groups, firewall rules), encryption (KMS, data protection), and logging/monitoring services native to major cloud platforms Proven experience working with and using policy-as-code frameworks such as AWS Service Control Policies (SCPs), GCP Organization Policy Constraints, or AliCloud Control Policies to enforce security guardrails at scale Strong background in third-party risk assessment and vendor security reviews, including the ability to evaluate cloud service architectures, identify security gaps, and provide actionable remediation guidance Demonstrated ability to develop security requirements and design documentation for complex cloud environments, translating technical controls into clear, implementable guidance for engineering teams Conversant in at least one programming language such as Python, Java, Go, or Swift Preferred Qualifications: Bachelor's Degree or equivalent experience preferred Experience securing cloud-native applications and workloads including containerized environments (Kubernetes/EKS/GKE), serverless architectures (Lambda/Cloud Functions), and modern CI/CD pipelines Experience with multiple cloud platforms (AWS, GCP, Azure, AliCloud) and the ability to perform comparative security analysis across different cloud providers' security models and controls