Application Security Engineer

  • Tokyo
  • No Remote
  • Full-time
  • June 9, 2025
Conditions
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¥7M ~ ¥12M /yr
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Apply from Anywhere 👍
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Relocation to Japan 👍
(Overseas visa sponsorship supported)
Requirements
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Language Requirements
Japanese: Business Level
English: Business Level
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Minimum Experience
Mid-level or above

We are looking for someone who will work closely with development, DevOps and security teams to promote secure coding practices and identify application vulnerabilities at each stage of development.

 

Job Description

Security integration in SDLC

  • Implementation and operation of application security tools
  • Incorporate and maintain tools such as SAST, DAST, and SCA into the CI/CD pipeline
  • Design and implement security gates to ensure vulnerabilities are resolved before deployment
  • Work with development teams to provide training on secure development methods and tools

 

Manual code review

  • Fix security defects
  • Design and implement SDL/DevSecOps processes
  • Security integration using tools such as GitLab
  • Perform detailed manual code reviews to discover vulnerabilities
  • Document findings and provide practical improvement suggestions
  • Formulate and manage secure coding guidelines and standards to be applied across the organization

 

Vulnerability management

  • Analyze, select, prioritize and address vulnerabilities detected by scanning tools
  • Work with developers to ensure vulnerabilities are fixed in a timely manner

 

Collaboration and education

  • Act as a security expert (SME) for the development team
  • Implement regular education programs to raise the team's security awareness
  • Actively participate in architecture design discussions and ensure security is built in from the early stages
  • OWASP Top Supports compliance with security standards such as PCI-DSS, PCI-10, CWE, GDPR, etc.

 

Ensures that code complies with internal security policies and industry standards

  • Threat modeling and risk assessment
  • Perform threat modeling of applications to identify risks at the early development stage
  • Assess risks during design reviews and take appropriate measures

OSL Japan is a venture company focused on the crypto asset exchange business. They also do work in system development and marketing related to blockchain technology, and more.

In September 2020, OSL Japan received approval from the Financial Services Agency and completed their registration as a crypto asset exchanger based on the Funds Settlement Law. OSL Japan plans to develop the company in not only the crypto asset exchange business, but also various new ventures. They are in need of new members to help with the expansion of the business.

View OSL Japan's company page

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Application Security Engineer at OSL Japan
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