About Me | mosaos

Profile

Name: mosaos
Occupation: Senior Engineer / System Architect / Tech Lead / Instructor
Areas of Activity: Covers a wide range of areas, from low-level technologies (physical control, KVM, and infrastructure) to web application development, facilitation of large-scale projects, and organizational education.

【An Architect Who Can Complete Everything from Physical Control and Databases to Facilitation of Large-Scale Projects】

Outstanding problem-solving ability and risk management: During a period of rapid service growth, I responded to a critical database load problem by quickly conducting a PoC and proceeding with an online table type change. Even when design problems were discovered just before a release, I presented a realistic improvement roadmap that prioritized business impact and led the project to success.
Facilitation for organizing chaotic situations: In meetings where coordination between stakeholders was difficult, I used a whiteboard to visualize the issues and identify their essential points. I solved complex coordination issues in a simple way and received high evaluations from experts.
Architecture design and performance optimization: Rather than staying at the theoretical level, I cover a wide range from low-level technologies to web development, including building high-performance REST APIs with Seasar2 + JAX-RS (Jersey) and implementing video filters in C++.
Specialist in practical, hands-on education: I have trained a total of several hundred engineers for practical work through an original curriculum that emphasizes active recall.
FinOps & DevOps: Cost optimization through AWS CUR visualization, as well as building DevOps environments (GitLab-CI/Sentry, etc.) on a self-built KVM platform.

Current: Working at a company in Tokyo, engaged in application development and management of an engineering group, as well as promoting and leading internal study sessions and virtualization