Senior AWS Cloud Architect – Landing Zone & Security

Socket.dev; Irvine (CA); On-site; USD 140,000 - 200,000; Full time

Job summary

Megazone US is seeking an experienced Cloud Security Architect to lead landing-zone and security standards for enterprise-scale AWS environments. You will own multi-account architectures, enforce guardrails, and drive vulnerability and compliance across the cloud estate.

You will review business-unit requests, collaborate with global stakeholders, and communicate risk decisions clearly in Korean and English. This onsite role is based in Irvine, CA.

Qualifications

• 7+ years in cloud infrastructure, including 4+ years designing on AWS at enterprise scale (multi-account, multi-VPC).
• Ownership of an AWS multi-account landing zone — Control Tower or equivalent with guardrails and account vending.
• Deep AWS security: IAM policy design, SCPs, KMS, VPC security architecture, centralized logging and AWS security services.
• Track record of governing other teams’ designs: architecture review, standards enforcement, constructive refusal.
• Professional fluency in Korean and English.
• Able to work onsite in Irvine, CA.

Responsibilities

• Own landing-zone and account architecture standards — account structure, organizational units, networking, identity, logging and guardrails.
• Review business-unit architectures and change requests, and approve, reject or improve them against the standard.
• Own security architecture: IAM and least privilege, encryption, boundary protection, secrets handling and the security baseline every account is measured against.
• Drive vulnerability and compliance posture across the estate (Security Hub, GuardDuty, Config, Inspector) and push remediation through the operations team.
• Produce the reference patterns and documentation that platform and operations engineers build from.
• Act as senior technical escalation for architecture and security incidents.
• Explain architecture and risk decisions to Korean-speaking client and HQ stakeholders, in writing and in meetings.

Skills

AWS architecture

Security architecture

Governance & policy

VPC & networking

Bilingual: Korean/English

Landing zone design

Tools

Control Tower

GuardDuty

Security Hub

Config

KMS

Job description

Megazone US is seeking an experienced Cloud Security Architect to lead landing-zone and security standards for enterprise-scale AWS environments. You will own multi-account architectures, enforce guardrails, and drive vulnerability and compliance across the cloud estate.

You will review business-unit requests, collaborate with global stakeholders, and communicate risk decisions clearly in Korean and English. This onsite role is based in Irvine, CA.