Career Summary & Work Experience
AWS運用エンジニア → 開発エンジニアへのキャリアチェンジを目指す
This page provides a compact view of current positioning, work history, and the transition path from AWS operations to software development.
Focus
Moving from AWS operations toward development-focused responsibilities
Content
Career summary and project-by-project work experience
Goal
Connect operations knowledge to full-stack engineering work
Career Summary
| Item | Details |
|---|---|
| Total Experience | 3 years 10 months (May 2022 – Present) |
| Specialization | AWS Operations & Automation, Python Development, Infrastructure Operations |
| Core Strengths | - AWS 20+ Services Production Experience - Python Automation Script Development - Operations Efficiency & Automation |
| Current Status | OSS operations and validation work - Learning technologies are listed in the dedicated learning table below - Aiming for full-stack developer transition |
Work Experience Details
🛠️ Tier-1 Network Incident Response (May 2022 – Aug 2023)
| Duration | 1 year 4 months |
|---|---|
| Scope | Network Incident Triage and Response (Aviation Industry, SES) |
| Key Technologies | Network Monitoring (1 year 4 months) Incident Response (1 year 4 months) Troubleshooting (1 year 4 months) Ticket Management (1 year 4 months) Escalation Handling (1 year 4 months) Customer Support (1 year 4 months) Bilingual Support (1 year 4 months) |
| Main Achievements | Network incident triage and response Operations monitoring and troubleshooting Ping checks and technician dispatch Bilingual email communication |
☁️ Cloud Operations Engineer (AWS Focus) (Sep 2023 – Dec 2025)
| Duration | 2 years 4 months |
|---|---|
| Scope | AWS Environment Operations and Automation |
| Key Technologies | Python (2 years 4 months) VBA (2 years 4 months) PowerShell (2 years 4 months) Linux (6 months) Windows Server (1 year 6 months) batch (1 year 6 months) Github Copilot (1 year) AWS (2 years 4 months) EC2 (2 years 4 months) VPC (1 year 6 months) IAM (1 year 6 months) CloudFormation (1 year 6 months) Lambda (2 years 4 months) S3 (2 years 4 months) DynamoDB (1 year 6 months) SNS (8 months) EventBridge (8 months) Systems Manager (8 months) CloudWatch (1 year 6 months) Security Hub (1 year) AWS Health (1 year) Amazon Bedrock (1 year) QuickSight (1 month) |
| Main Achievements | VBA document and parameter sheet automation QuickSight + Lambda AWS cost calculation system CloudFormation management for 20+ AWS services |
💻 OSS Operations and Development Engineer (Jan 2026 – Present)
| Duration | 2 months, Ongoing |
|---|---|
| Scope | Open Source Operations, Improvement and Validation |
| Key Technologies | Java (2 months) Springboot(mainly check, some modification) (2 months) Wicket (2 months) XML (2 months) Linux (2 months) Docker (2 months) Bash (2 months) OSS Management (2 months) AWS (2 months) Kubernetes (2 months) Git/GitHub (2 months) Git Workflow (2 months) CI/CD (2 months) DevOps (2 months) Gradle (2 months) REST API (2 months) English to Japanese Translation (2 months) Japanese to English Translation (2 months) English Communication (2 months) Technical Documentation (2 months) |
| Main Achievements | OSS validation and quality assurance Technical documentation updates and knowledge sharing Code improvements including bug fixes and refactoring |
Notes
Star rating guide: ★4 (3+ years) / ★3 (2+ years) / ★2 (1+ year) / ★1 (under 1 year or learning)
Final Thoughts
- **2 years 4 months AWS operations experience** -> Transitioning to full-stack development
- **Native Japanese speaker** with practical business English communication skills
- **Strong in customer support and incident troubleshooting** through hands-on operations experience
- **Strong commitment** to automation, efficiency, and continuous learning
| *Last Updated: 2026-03-14 | This page is updated regularly* |