Tatsunari Sasaki
Tokyo
Summary
Cloud Engineer and Technical Support Specialist with hands-on experience in AWS, GCP, and web development. Skilled in troubleshooting cloud environments, managing internal IT infrastructure, and providing technical support to customers. Strong background in diagnosing and resolving cloud-related issues while ensuring high customer satisfaction. Proven ability to communicate effectively with clients, manage cloud architectures, and optimize system performance. Passionate about delivering high-quality support and contributing to continuous service improvement.
Overview
3
3
years of professional experience
2
2
Certifications
2
2
Languages
Work History
Freelance Web Developer
10.2024 - Current
- Developing web applications using React, Next.js, and TypeScript
- Implementing CI/CD pipelines and serverless architectures
- Managing cloud-based deployment on AWS and Vercel
- Collaborating with clients to define technical requirements and deliver optimized solutions
Web Developer
Prime Style Inc.
05.2023 - 08.2024
- Company Overview: Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
- Developed and maintained CMS-based websites (WordPress, Movable Type)
- Configured CI/CD pipelines and automated deployments
- Handled content updates and project management
- Provided incident response and technical support
- Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
Internal System Administrator
Prime Style Inc.
04.2023 - 08.2024
- Company Overview: Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
- Managed PCs, licenses, and help desk support
- Operated Active Directory and internal servers
- Deployed Open Source Software (OSS) and Google Workspace SaaS solutions
- Handled email and domain administration
- Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
Cloud Engineer & Technical Support
Prime Style Inc.
01.2023 - 08.2024
- Company Overview: Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
- Managed and maintained AWS & GCP cloud infrastructure
- Provided technical support for cloud-related issues via email and chat
- Diagnosed and resolved customer-specific architectural design requirements
- Utilized advanced troubleshooting tools to pinpoint root causes and offer effective solutions
- Ensured high customer satisfaction, adhering to strict SLA and SLO metrics
- Created detailed technical documentation to improve troubleshooting efficiency
- Industry: IT/Telecommunications Employees: 80 Capital: 59,797,000 JPY Employment Type: Full-time
Software Engineer
Neusoft Japan Co., Ltd.
05.2022 - 10.2022
- Company Overview: Industry: IT/Telecommunications Employees: 500 Capital: 187,750,000 JPY Employment Type: Full-time
- Developed a warehouse inventory management system
- Assisted in requirement gathering and design documentation
- Created and executed unit and integration testing
- Industry: IT/Telecommunications Employees: 500 Capital: 187,750,000 JPY Employment Type: Full-time
Education
Diploma - Security & Networking
Nippon Engineering College
Kamata, Japan 04.2001 -
Skills
- AWS
- GCP
- Docker
- Kubernetes
- Nginx
- Apache
- Linux (Ubuntu, CentOS)
- Windows Server
- React
- TypeScript
- JavaScript
- Python (Django)
- PHP
Websites
Certification
IT Passport, 06/01/19
Timeline
Freelance Web Developer
10.2024 - Current
Web Developer
Prime Style Inc.
05.2023 - 08.2024
Internal System Administrator
Prime Style Inc.
04.2023 - 08.2024
Cloud Engineer & Technical Support
Prime Style Inc.
01.2023 - 08.2024
Software Engineer
Neusoft Japan Co., Ltd.
05.2022 - 10.2022
Diploma - Security & Networking
Nippon Engineering College
04.2001 -
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