Senior Platform Security Engineer

Gemini is a global crypto and Web3 platform offering secure crypto products and services. As a Senior Platform Security Engineer, you will build and maintain security controls across diverse environments and partner with engineering teams to enable secure delivery, ensuring comprehensive protection across the stack.

Responsibilities:

• Build and maintain security controls for AWS and Kubernetes (EKS) environments, including guardrails, container security scanning, and infrastructure-as-code (Terraform) security
• Support IAM initiatives by helping to design and maintain access controls, role-based access control (RBAC) models, and identity governance workflows
• Design, deploy, and maintain internal security services and platforms that other engineering teams rely on
• Act as a security partner to engineering teams, helping them make secure architecture decisions without blocking innovation
• Work across functions—partnering with AppSec, Threat Detection, and GRC—to identify and reduce risk across the entire stack
• Participate in on-call rotation for platform security incidents

Requirements:

• 5+ years of experience in Information Security, SRE, or Systems Engineering
• Strong software development skills in Python or Go with experience building production services
• Solid experience with AWS (or similar cloud providers), including familiarity with IAM roles, VPCs, and native security controls
• Hands-on experience with Kubernetes/EKS and containerization concepts, including pod security policies and container lifecycle
• Understanding of IAM principles, RBAC, and least-privilege access models
• Proficiency in Terraform for infrastructure-as-code
• Ability to self-scope and execute technical goals with minimal supervision
• Experience with identity providers (IdP) like Okta and standards like SAML/OIDC
• Experience writing Policy-as-Code (e.g., Open Policy Agent/Rego)
• Background in Linux systems engineering or network security
• Experience building and operating high-availability critical systems