【Infrastructure Lead Engineer】 Lead Security and Scaling Optimization of Proprietary AI Products from Both Offensive and Defensive PerspectivesEnglish summary from Japanese

株式会社MSOL Digital

✓ Detailed

Salary

500-700万円

Location

160-0023 東京都新宿区西新宿6-18-1 住友不動産新宿セントラルパークタワー15F

Job Type

Full-time

Work Style

9:00〜18:00（フレックスタイム制／コアタイムなし）

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Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

MSOL Digital is seeking an Infrastructure Lead Engineer to manage the security and scaling of their proprietary AI agent service, 'Mill'. This role involves leading strategy, design, and operations for AWS infrastructure, focusing on security, cost optimization, and development speed to ensure the reliability of customer data.

Must-haves

Experience leading infrastructure strategy, design, and operations.
Experience with AWS security best practices and guardrails.
Experience with access control design and operation (e.g., AWS Cognito, ALB, IAM).
Experience with scaling and cost optimization (e.g., EC2, ECS, AWS Bedrock).
Experience with CI/CD and IaC (e.g., Terraform, CloudFormation).

Nice-to-haves

Experience with monitoring, log analysis, and performance tuning.
Experience with security certifications like ISMS and SOC2.
Experience in offensive and defensive security perspectives.

Tech stack

AWSAI

About the Company

株式会社MSOL Digital

Posted7/14/2026

Updated2026-07-17 01:23:58