職務内容

Business content / 業務内容

Our Security Department is committed to enabling innovation and developer experience while safeguarding the AI-driven products and services we build. We work at the forefront of corporate and cloud security, network resilience, and governance to ensure our infrastructure and products remain secure, compliant, and robust. Our team collaborates closely with engineers and stakeholders across the company to build scalable, security-first architectures that empower solutions to real-world challenges. If you are passionate about security and want to work on cutting-edge technology with real societal impact, we’d love to hear from you.

As a Senior Cloud Security Engineer, your mission will be to establish and enforce best-in-class security practices across our entire ecosystem. You will play a critical role in strengthening our overall security posture, guiding and mentoring team members, and ensuring our security frameworks align with industry standards and regulatory requirements. Your expertise in both English and Japanese will allow you to bridge security efforts across teams and stakeholders, driving company-wide security initiatives effectively.

Tech Stack / 技術スタック

• Cloud: AWS (Primary), Azure, GCP
• Orchestration: Kubernetes, ECS
• Security Tools: AWS Security Hub (via GuardDuty, Detective, Inspector), SonarQube, DefectDojo, Datadog Cloud SIEM
• Infrastructure as Code: Terraform

Key Attractions of This Position / 本ポジションの魅力的なポイント

• Work with a multi-cloud environment hosting an extremely diverse variety of applications and architectures.
• Gain leadership experience, being responsible for the company's cloud security posture.
• Drive company-wide security initiatives, contributing to the development of a security-first mindset within the company.
• Solve real-world security challenges in a fast-paced, dynamic tech environment.

応募資格（必須）

• 5+ years of experience in cloud security, with a strong focus on AWS.
• Strong communication and leadership skills, with experience mentoring junior engineers.
• A firm grasp on both English and Japanese (Business level or higher).
• A proven track record working with identity and access management (IAM), network security, and cloud compliance.
• Experience in monitoring and responding to security incidents in cloud environments.
• Well-versed in application security, including activities such as white box testing/source code review.

応募資格（歓迎）

• Security certifications such as AWS Certified Security - Specialty, CISSP, CEH, OSCP, etc.
• Previous experience working in a company with a focus on AI-powered product.
• Knowledge of zero-trust architectures and cloud-native security solutions.
• A deep understanding of Kubernetes security best practices.
• Hands-on experience with security automation and Infrastructure as Code.

求める人物像

• Proactive and solutions-oriented, with a strong sense of ownership.
• A desire to move into leadership, willing to coordinate a team.
• Passionate about security and continuous self-improvement.
• Excellent communicator, able to work effectively across diverse teams.
• Adaptable to new challenges in a rapidly evolving technical landscape.

賃金

年収 708万円 ～ 1308万円

■月収：年収の12分割分を支給

月収下限59万円（基本給436,500円、みなし残業代45時間分として153,500円）

月収上限109万円（基本給806,470円、みなし残業代45時間分として283,580円）

45時間を超える時間外労働分の割増賃金は追加で支給

※経験・能力、希望を考慮の上、当社規定により決定

※業務の内容に応じて、フレックス/裁量労働制または管理監督者としての勤務形態を適応