Portfolio
Career summary
| Item | Details |
|---|---|
| Total Experience | 4 years 5 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
🛠️ Network Incident Response (May 2022 – Aug 2023)
| Duration | 1 year 4 months |
|---|---|
| Scope | Bilingual network monitoring and incident triage (Aviation Industry, SES) |
| Key Technologies | Network Monitoring (1 year 4 months): Ticket management & escalation & incident response |
| Main Achievements | Incident triage and recovery support Monitoring, ping checks, and technician dispatch Bilingual email support |
| Notes |
☁️ AWS Cloud Operations Engineer (Sep 2023 – Dec 2025)
| Duration | 2 years 4 months |
|---|---|
| Scope | AWS environment operations and automation |
| Key Technologies | Python (2 years 4 months): boto3, pandas VBA (2 years 4 months) PowerShell (2 years 4 months) Linux (6 months) Windows Server (1 year 6 months) batch (1 year 6 months) AWS (2 years 4 months) |
| Main Achievements | VBA document and parameter sheet automation QuickSight and Lambda cost calculation system AWS service management with CloudFormation |
| Notes |
💻 Cloud and OSS Engineer (Jan 2026 – Present)
| Duration | 9 months, Ongoing |
|---|---|
| Scope | AWS design/development, OSS validation, and translation/interpretation support |
| Key Technologies | AWS (8 months) Terraform (8 months) GitHub (8 months): Workflow and Actions(CI/CD) XML (8 months) Docker (8 months) AI (8 months): GitHub Copilot, Gemini, and Sakana AI OSS (8 months): Validation, debugging, and technical documentation memoQ (3 months): For OSS UI translation Translation/Interpretation (8 months): English-Japanese translation and interpretation for overseas OSS |
| Main Achievements | AWS resource management with Terraform and web manual development EKS data backup/restore and ECR image migration OSS validation, log investigation, debugging, and technical documentation |
| Notes |
Experience by category
Years/months of experience across Cloud, Coding, Infrastructure, and Server (from work-experiences)
Experience summary
Category Summary Table
| Category | Experience | Top 5 by experience (within category) |
|---|---|---|
| Cloud | 3y | AWS (3y) |
| Coding | 3y | Python (2y 4m) VBA (2y 4m) XML (8m) |
| Infrastructure | 4y 4m | PowerShell (2y 4m) Network Monitoring (1y 4m) Docker (8m) GitHub (8m) OSS (8m) |
| Server | 1y 6m | Windows Server (1y 6m) |
| Language | 8m | Translation/Interpretation (8m) |
| Other | 2y 2m | batch (1y 6m) AI (8m) Terraform (8m) memoQ (3m) |
Top 5 Technologies by Experience (Overall)
| Rank | Technology | Category | Experience |
|---|---|---|---|
| 1 | AWS | Cloud | 3y |
| 2 | PowerShell | Infrastructure | 2y 4m |
| 3 | Python | Coding | 2y 4m |
| 4 | VBA | Coding | 2y 4m |
| 5 | batch | Other | 1y 6m |
Technology experience
Top 10 technologies by work-experience duration
Technology totals
Combined Technology Experience (Across Work History)
Ready-To-Contribute Areas (1+ Year Work Experience)
| Technology | Total Experience | Rating Guide | Notes |
|---|---|---|---|
| AWS | 3 years | ⭐⭐⭐⭐ | * Certified: AWS Certified DevOps Engineer - Associate, AWS Certified Solutions Architect - Associate, AWS Cloud Practitioner |
| PowerShell | 2 years 4 months | ⭐⭐⭐ | - |
| Python | 2 years 4 months | ⭐⭐⭐ | - |
| VBA | 2 years 4 months | ⭐⭐⭐ | - |
| batch | 1 year 6 months | ⭐⭐ | - |
| Windows Server | 1 year 6 months | ⭐⭐ | - |
| Network Monitoring | 1 year 4 months | ⭐⭐ | - |
Work Experience Under 1 Year
| Technology | Total Experience | Rating Guide | Notes |
|---|---|---|---|
| AI | 8 months | ⭐ | - |
| Docker | 8 months | ⭐ | - |
| GitHub | 8 months | ⭐ | - |
| OSS | 8 months | ⭐ | - |
| Terraform | 8 months | ⭐ | - |
| Translation/Interpretation | 8 months | ⭐ | - |
| XML | 8 months | ⭐ | - |
| Linux | 6 months | ⭐ | * Certified: LinuC-1 |
| memoQ | 3 months | ⭐ | - |
Learning Technologies
| Technology | Learning Period | Rating Guide | Notes |
|---|---|---|---|
| GitHub | 1 year | ⭐ | Also used in work: 8 months |
| GitHub Copilot | 1 year | ⭐ | - |
| Microsoft Copilot | 1 year | ⭐ | - |
| React | 1 year | ⭐ | - |
| JavaScript | 11 months | ⭐ | - |
| Gemini AI | 6 months | ⭐ | - |
| Java | 4 months | ⭐ | - |
| Ollama | 2 months | ⭐ | - |
Technology summary
Count by technology category
Language experience
Language level guide (4-step scale)
Language skills
| Language | Level | Experience | Main Achievements & Usage |
|---|---|---|---|
| Japanese (Native) | ⭐⭐⭐⭐ | Native | Native level and technical documentation |
| English (Business Level) | ⭐⭐⭐ | 2 year | Technical email and English to Japanese translation |
Certifications overview
Certification count by category (total: 4)
Certifications by obtained year
Certifications
| Category | Certification Name | Obtained | Related Technologies & Usage |
|---|---|---|---|
| AWS Certifications |
AWS Certified Solutions Architect - Associate | 2024 | AWS Architecture Design, Construction & Operations |
| AWS Certified DevOps Engineer - Associate | 2025 | CI/CD Pipelines & Infrastructure Automation | |
| LinuC Level 1 | 2022 | Linux System Administration & Operations Foundation | |
| Language Certifications |
TOEIC Listening & Reading Test | 790 points | English Business Communication Proficiency Certification (Equivalent to CEFR B2-C1 Level) |
Projects overview
Project count by progress status (total: 8)
Projects
| Project Name | Period | Key Technologies | Features & Achievements | Progress |
|---|---|---|---|---|
| House ledger System | Jan 2026 - Present | React JavaScript Electron |
• Privacy first • Local only • No advertisement • OSS |
In Production GitHub Organization |
| Development of a Website About Japan | Present | React JavaScript |
• Development of a Website About Japan | In Production GitHub Organization |
| Language Learning with AI like anki | Present | React Electron FastAPI JavaScript Ollama |
• Development of Language Learning AI | In Production GitHub Organization |
| Development of Secure Memo App | Present | React Electron JavaScript |
• Local first, no cloud needed, no advertisement, OSS | In Production GitHub Organization |
| Development of Shadowing Learning App | Present | React Electron JavaScript |
• Local first, no cloud needed, no advertisement, OSS | In Production GitHub Organization |
| Development of Study Tracker App | Present | React Electron JavaScript |
• Local first, no cloud needed, no advertisement, OSS | In Production GitHub Organization |
| Development of Video Editing Related OSS | Present | React Electron JavaScript |
• Local first, no cloud needed, no advertisement, OSS | In Production GitHub Organization |
| Development of Video Editing Toolkit Related OSS | Present | React Electron JavaScript |
• Local first, no cloud needed, no advertisement, OSS | In Production GitHub Organization |
Roadmap
| Period | Main Objectives | Specific Initiatives | Success Metrics |
|---|---|---|---|
| 2026-2027 (Short-term Goals) |
Full-Stack Development Skills |
|
Portfolio Completion & Publication Technical Certifications |
| 2028-2029 (Medium & Long-term Goals) |
Real-world Development Experience Acquisition |
|
Core Development Team Member Junior Mentoring Experience |
Learning plan
| Priority | Technology Domain | Technologies & Frameworks | Learning Timeline | Learning Purpose & Applications |
|---|---|---|---|---|
| Highest Priority (2026) | CI/CD & Automation | GitHub Actions | Throughout 2026 | Automation pipelines and continuous delivery |
| Highest Priority (2026) | Frontend | React (Intermediate) | Throughout 2026 | Modern SPA development and framework comparison |
| Highest Priority (2026) | Databases | MongoDB, PostgreSQL, Redis | Throughout 2026 | NoSQL, relational DB, and caching |
| Highest Priority (2026) | Container & Orchestration | Docker, Kubernetes, Docker Compose | Throughout 2026 | Containerization, orchestration, and DevOps |
| Highest Priority (2026) | IaC & Monitoring | Terraform, Ansible, Prometheus | Throughout 2026 | Infrastructure as Code and operations monitoring automation |
| Highest Priority (2026) | Programming Languages | TypeScript | Second half of 2026 | Type-safe large-scale development |
| Highest Priority (2026) | Programming Languages | Go | Second half of 2026 | Type-safe large-scale development |
| Highest Priority (2027) | Cloud Expansion | Azure (Basic), GCP (Basic) | First half of 2027 | Multi-cloud support and option expansion |
| Important (2027) | Testing Technologies | Jest, JUnit, Selenium, Cypress | First half of 2027 | Unit, integration, E2E testing, and quality assurance |
| Long-term (2028+) | Mobile Development | React Native, Flutter, Swift | 2028 onwards | Cross-platform and native app development |
| Long-term (2028+) | AI/ML | TensorFlow, PyTorch, scikit-learn | 2028 onwards | Machine learning, data science, and AI utilization |
| Long-term (2028+) | Emerging Tech | Solidity, Web3, GraphQL | As needed | Blockchain, distributed systems, and advanced APIs |