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Sakana AI

Orchestrates multiple LLMs via API

Cybersecurity Engineer

Security Engineering & Architecture +1Confirmed live in the last 24 hours
Full-timeMinato City, Tokyo, JapanNo salary listed

About the Job

Requirements

  • At least 3 years of practical experience in one or more of the following areas: technical expertise in web application or infrastructure development; implementation of public-cloud security controls such as Google Cloud; implementation of security controls for identity management, zero trust, or endpoint security such as EPP/EDR and SASE; security risk assessment or threat modeling; vulnerability assessment or penetration testing; vulnerability management or patch management; threat intelligence collection and analysis; security log analysis or alert handling using SIEM, including creating and tuning detection rules; incident response operations; or digital forensics or malware analysis.
  • Strong written and verbal communication skills, including the ability to explain technical issues clearly to both technical and nontechnical audiences.
  • Ability to drive cross-functional projects and initiatives through influence, organization, and thorough follow-up.
  • Ability to manage vendors, assets, procurement, and organizational technology operations with strong execution and attention to detail.
  • Business-level Japanese proficiency at JLPT N1 level.

Responsibilities

  • Support implementation of security controls in system-development processes and promote security by design from planning and requirements definition.
  • Support requirements definition, design, and implementation for data protection, including encryption, access control, and authentication.
  • Conduct technical security reviews and support remediation of vulnerabilities discovered within the organization.
  • Support implementation of security controls in public-cloud environments such as Google Cloud.
  • Support implementation of endpoint-device security controls, including EPP/EDR and SASE.
  • Design and operate identity management, including IDaaS, zero-trust security, and access permissions.
  • Conduct vulnerability assessments of web applications and infrastructure, AI risk assessments, and penetration tests.
  • Analyze discovered vulnerabilities, assess their severity using methods such as CVSS, prioritize responses, prepare and share assessment reports, and drive remediation.
  • Manage vulnerabilities, patches, configurations, and changes.
  • Operate data-protection controls, including access control, authentication, and backups, while considering business continuity.
  • Collect, analyze, and share threat intelligence and vulnerability information, and reduce threats and risks continuously through activities such as threat hunting.
  • Monitor and analyze security logs, respond to security incidents, and continuously improve systems through corrective actions in collaboration with software engineers and related teams.

Desired Qualifications

  • Knowledge or practical experience in securing AI and machine-learning systems, including security in AI development and countermeasures for AI-specific threats.
  • Practical experience developing AI-enabled products or services.
  • Practical experience in cybersecurity consulting.
  • Practical experience implementing and operating IT controls related to internal controls (J-SOX).
  • Practical experience obtaining and maintaining security certifications such as SOC 2 or ISMS.
  • Practical experience addressing security requirements of financial institutions or government agencies.
  • Practical experience in system auditing.
  • Practical experience developing junior employees and supporting executive leadership.
  • Business-level English proficiency.

About the Company

Sakana AI

Orchestrates multiple LLMs via API

Sakana AI builds AI foundation models and a multi-agent orchestration platform. Its flagship product, Sakana Fugu, runs as a single language-model interface that plans, delegates to, and combines outputs from a swappable pool of LLMs—including closed frontier models, open models, and its own instances—behind an OpenAI-compatible API. Fugu comes in two flavors: a low-latency everyday model and Fugu Ultra for tackling tough, multi-step tasks in software engineering, scientific research, and cybersecurity. The company differentiates itself by treating orchestration as a core capability to hedge against vendor lock-in and export-control shifts, using techniques like evolutionary model merging and agentic research systems. Sakana aims to provide reliable, flexible AI tooling for developers and enterprises through its API and tool integrations, while continuing to publish research on learned model orchestration.

Company size
201-500
Company stage
Series B
Total funding
$365M
Headquarters
Tokyo, Japan
Founded
2023

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