Infrastructure Security Engineer - Remote

Wildix is a global leader in Unified Communications & Collaboration as a Service (UCaaS) seeking an experienced Infrastructure Security Engineer to enhance their AWS-based infrastructure security. The role involves designing, implementing, and improving security measures while ensuring compliance and risk mitigation in a cloud environment.

Responsibilities:

• Drive continuous security improvements in AWS based on SIP findings
• Maintain '100% Green' status in AWS Trusted Advisor and Security Hub
• Own IAM security, enforcing MFA, auditing admin access, rotating keys, and implementing least-privilege roles
• Manage temporary privileged access workflows to ensure secure, time-bound access
• Lead the lifecycle of infrastructure security findings, from triage to remediation and verification
• Build and operate centralized logging and SIEM for full visibility and threat response
• Collaborate with DevOps/SRE teams to embed security into provisioning and deployments
• Coordinate AWS security assessments and penetration testing, driving remediation
• Provide security guidance for architecture and new services, ensuring best-practice implementation

Requirements:

• 7+ years in Infrastructure Security, Cloud Security, or Cloud Engineering roles
• Deep expertise in AWS security services (IAM, VPC, Control Tower, Security Groups, GuardDuty, Config, KMS, WAF)
• Hands-on with Infrastructure-as-Code security (Terraform, CloudFormation) and CI/CD pipeline hardening
• Solid understanding of AWS network architecture and secure networking practices
• Skilled in monitoring, logging, and incident response in cloud environments
• Knowledge of cloud compliance frameworks (ISO 27001, SOC 2, CIS Benchmarks)
• Experienced in threat modeling, vulnerability management, and remediation
• Practical implementation of zero-trust and least-privilege principles
• Conduct security reviews of architecture and configurations