I am RYO,
a Security Engineer
& Cloud
Architect based
in Somewhere.
About
I'm' a Security Engineer dedicated to protecting corporate digital assets with over 10 years of experience in systems development.
My expertise centers on cloud security in AWS environments, vulnerability management, and threat modeling, with a strong focus on designing authentication frameworks using
OIDC/OAuth2.0 and implementing secure coding practices.
I'm committed to integrating security into agile development processes through DevSecOps implementation, collaborating with development teams to achieve both security and
productivity.
Expertise
- Cloud Architect (AWS)
- Secure Coding Practices
- OIDC/OAuth2.0
- Vulnerability Management
- Threat Modeling
Experience
Development Support
Security Consultant
April 2026 - Present
As a Security Consultant, I design and support clients' migration from on-premises environments to AWS. I provide comprehensive support including architecture design, implementation, and agile practices while collaborating with development teams.
AWS Security
SRE
October 2024 - March 2026
As an SRE, I strengthened security measures in AWS environments and supported the acquisition of ISMS certification. I conducted vulnerability management and risk assessments, including quantitative risk analysis, to identify and mitigate security threats while maintaining system reliability.
Authentication Infrastructure
Development Lead
January 2023 - September 2024
As a Development Lead, I led the development of an authentication and Authorization platform leveraging OIDC/OAuth2.0, enabling multiple systems to share a common authentication infrastructure. I implemented E2E test automation, threat modeling, and event storming sessions to ensure security, reliability, and scalability across the platform.
Certificates
Security+
CompTIA
CISSP
iSC2 - Learning Now
CCSP
iSC2 - Next..
Get In Touch
I love to hear from you — shoot me a message.