Senior AWS Cloud Security Engineer - Energy & AI Infra

ON.energy; Buenos Aires; Presencial; ARS 181.190.000 - 226.487.000; Jornada completa

Descripción de la vacante

ON.energy is building the backbone of energy and AI infrastructure, powering grid-safe data centers and mission-critical facilities with hyperscale power systems.

The role focuses on cloud security across multi-account AWS environments, implementing identity, access, and network protections, and integrating threat detection with established playbooks. You will shape security across OT/IT interfaces and evolve IaC-driven controls.

Formación

• 5+ years in cloud security, security-focused infrastructure, or cloud operations with deep hands-on AWS.
• Production experience in multi-account AWS environments.
• Strong understanding of attacker techniques and detections to counter them, with end-to-end incident handling experience.
• Hybrid/site-to-cloud network security: segmentation, VPN, private connectivity, secure access controls.
• IAM Identity Center with Entra ID integration and least-privilege access practices.
• Infrastructure as code tools: CDK, CloudFormation, or Terraform.

Responsabilidades

• Design multi-account security foundations and IaC-based baselines with centralized logging.
• Establish security review gates and enforce controls across deployments.
• Manage AWS identity and access using IAM Identity Center with Entra ID integration.
• Own site-to-cloud connectivity, segmentation, DMZ patterns, and field gateway identity.
• Develop detections, monitoring, and runbooks aligned to MITRE ATT&CK frameworks.
• Oversee vulnerability management across workloads and dependencies; coordinate with engineers.

Conocimientos

Cloud security

AWS multi-account

IAM/Entra integration

Network security

Threat monitoring

Infrastructure as Code

English communication

Herramientas

CDK

CloudFormation

Terraform

GuardDuty

Security Hub

Descripción del empleo

ON.energy is building the backbone of energy and AI infrastructure, powering grid-safe data centers and mission-critical facilities with hyperscale power systems.

The role focuses on cloud security across multi-account AWS environments, implementing identity, access, and network protections, and integrating threat detection with established playbooks. You will shape security across OT/IT interfaces and evolve IaC-driven controls.