Senior Cloud Security Engineer: AWS, SIEM & Automation

Arionkoder; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

Arionkoder is seeking a Sr Security Engineer to own the vulnerability management lifecycle in a hands-on, cloud-native AWS environment. You will lead discovery, risk assessment, prioritization, and remediation coordination with DevSecOps and engineering teams.

The ideal candidate has deep experience in securing AWS workloads at scale, SIEM tuning in production, and strong scripting skills (Python, Bash, PowerShell) to automate security operations. English proficiency is required for this role.

Qualifications

• Experience in security engineering, system administration, or related roles.
• Hands-on, production-level AWS security experience in a 100% cloud-native environment.
• End-to-end ownership of the vulnerability management lifecycle: discovery, prioritization, risk and criticality assessment, timeline assignment, progress tracking, and closure driving (excluding code fixes, which you coordinate with development teams).
• Demonstrated experience owning security incident investigations
• Proven experience owning and fine-tuning a SIEM solution in production, with the judgment to separate real security signals from noise and false positives.
• Strong scripting skills in Python, Bash, or PowerShell for automation and tooling.
• Solid understanding of network security concepts (firewalls, IDS/IPS, proxies, VPNs).
• Hands-on experience with endpoint security tools and monitoring solutions.
• Strong analytical and problem-solving skills with the ability to think like an attacker.
• Nice-to-Haves: Experience securing containerized workloads (Docker, Kubernetes); knowledge of compliance frameworks (PCI-DSS, SOC 2, NIST, ISO 27001); and experience with Infrastructure as Code (Terraform, CloudFormation).

Responsibilities

• Own end-to-end vulnerability management lifecycle: discovery, prioritization, risk and criticality assessment, timeline assignment, progress tracking, and closure driving (excluding code fixes, which you coordinate with development teams).
• Lead security incident investigations and remediation coordination with teams.
• Tune and manage SIEM in production to reduce noise and false positives.
• Automate security operations with scripts and tooling.
• Secure cloud workloads at scale in a 100% AWS environment.
• Implement and review network security controls (firewalls, IDS/IPS, proxies, VPNs).
• Collaborate with DevSecOps and engineering teams to improve security posture.

Skills

Security engineering

AWS security (cloud-native)

Vulnerability management

SIEM tuning

Threat modeling

Scripting (Python, Bash, PowerShell)

Incident investigations

Networking security

Endpoint security tools

Attacker mindset

Tools

SIEM

Terraform

CloudFormation

Docker

Kubernetes

AWS CloudWatch

Job description

Arionkoder is seeking a Sr Security Engineer to own the vulnerability management lifecycle in a hands-on, cloud-native AWS environment. You will lead discovery, risk assessment, prioritization, and remediation coordination with DevSecOps and engineering teams.

The ideal candidate has deep experience in securing AWS workloads at scale, SIEM tuning in production, and strong scripting skills (Python, Bash, PowerShell) to automate security operations. English proficiency is required for this role.