English Version

Cloud Engineer
from Japan

Specializing in edge-native web platforms (Cloudflare + Hono + D1), AWS full-stack IaC (Terraform + GitHub Actions OIDC), DMARC compliance, and AI agent automation (MCP + AI Gateway). Available for remote work globally.

AWS SAA Certified
CCNA Certified
Linux+ Certified
TOEIC 890
☁️

Cloud Engineer

AWS · Cloudflare · IaC · AI

Location: Japan · Full Remote
Role: Cloud / Infra Engineer
Certs: SAA · CCNA · Linux+
Languages: JP / EN (TOEIC 890)
NDA: Available on request

Background

About Me

From internal IT to edge-native cloud engineering

Started as an internal IT engineer, migrating web and email infrastructure to AWS (S3, CloudFront, Lambda, SES, Route53) and co-developing an IBM Watson × Slack helpdesk bot. The DX project was covered by a local business journal.

Earned CCNA, Linux+, and AWS SAA — all in English (TOEIC 890). Now building edge-native platforms with Cloudflare Pages + Hono + D1, full Terraform IaC, GitHub Actions OIDC CI/CD, and AI agent automation via MCP.

All infrastructure decisions are documented — including why certain technologies were deliberately not chosen. Rational, auditable, handover-ready.

🏢

Internal IT Engineer

Apr 2021 – May 2022

AWS web/email migration, IBM Watson × Slack helpdesk bot (2-person dev + 4-person cross-dept test). Full documentation. DX case published in local business journal.

📚

Self-Study & Certification

2022 – 2025

CCNA, Linux+, AWS SAA — all English exams. TOEIC 890. Deepened IaC (Terraform), edge computing (Cloudflare), and AI automation while running freelance AWS projects.

☁️

Freelance Cloud Engineer

2025 – Present · Full Remote

Edge-native platforms (Cloudflare Pages + Hono + D1), AWS full-stack IaC, DMARC compliance, AI agent automation. All decisions backed by published technical articles.

What I Deliver

Services

Design → build → documentation — all in one engagement

Edge-Native Web Platform

Zero cold-start · $0–$3/mo infra cost · IaC-managed end-to-end.

Cloudflare Pages + Hono + D1 or AWS S3 + CloudFront + Lambda + SES. Architecture decision included.

Email Auth & DMARC Compliance

SPF / DKIM / DMARC p=reject — fully managed via Terraform.

SES sandbox removal → staged DMARC rollout (none→quarantine→reject). Bounce/complaint SNS alerts.

IaC & CI/CD Pipeline

Terraform + GitHub Actions OIDC — no long-lived access keys.

terraform import existing infra → module design → Dev/Prd separation → zero-credential CI/CD.

AI Agents & Ops Automation

Delegate routine AWS / Cloudflare ops to AI via MCP.

AI Gateway (cache, multi-LLM, cost visibility) + MCP server + Slack/GitHub Actions trigger flows.

Observability & Monitoring

CloudWatch + Sentry + auto-stop on budget anomaly.

Real-time alerting, structured logs, AWS Budgets × Lambda cost-breach auto-shutdown — all in Terraform.

Architecture Review & Advisory

Well-Architected assessment with actionable priorities.

IAM audit, Serverless vs Edge trade-off, cost modeling, Terraform code review. Spot or monthly retainer.

Full service details (JA)

Stack

Technical Skills

Cloud & IaC

  • AWS — S3, CloudFront, Lambda, SES, Route53, IAM, EC2, ECS/Fargate, Kinesis Video Streams
  • Terraform — full IaC, multi-env (Dev/Prd) module design, S3+DynamoDB state
  • GitHub Actions CI/CD — OIDC (no access keys), PR preview deploy
  • AWS Well-Architected, IAM least privilege, cost modeling

Edge & Web

  • Cloudflare Pages + Hono + D1 — zero cold-start edge API
  • Cloudflare Zero Trust, Tunnel, Access — secure internal tooling
  • AI Gateway — multi-LLM proxy, caching, cost visibility
  • Vite, TypeScript, Markdown auto-discovery build pipeline

AI & Automation

  • MCP (Model Context Protocol) — AI agent infra delegation
  • AI Gateway — OpenAI / Anthropic / Gemini multi-provider
  • IBM Watson Assistant × Slack API (production, DX case)
  • CloudWatch + Sentry + AWS Budgets × Lambda auto-stop

Networking & OS

  • TCP/IP, DNS, SMTP, DMARC/DKIM/SPF — troubleshooting to fix
  • Linux (RHEL / Ubuntu) — systemd, SELinux, iptables, cgroups
  • CCNA-level routing/switching, packet-level debug
  • Shell scripting, Python scripting

Tech Writing

Technical Articles

Implementation decisions backed by published articles — what was chosen and why

Career 16 min read

Rationality of Tech Selection: Axes from Internal SE to Cloud Engineer, and Technologies Deliberately Avoided

Read article
Web Dev 20 min read

Edge-Native API Platform with Cloudflare Pages + Hono + D1: From Implementation to Automation

Read article
Architecture 11 min read

Serverless (Lambda/Fargate) vs Edge (Cloudflare): Choosing Resources by Processing Characteristics

Read article
AWS 13 min read

AWS SES Sandbox Removal & DMARC 2026 Edition: Complete DNS Auth Guide

Read article
AI 13 min read

Automating Routine Ops with AI Agents: Infrastructure Management via MCP

Read article
IaC 13 min read

Terraform Multi-Env (Dev/Prd) Loosely Coupled Module Design

Read article
All articles (JA)
💬

Let's Talk

"Just want to explore the idea" or "need a quote" — either is fine.
First consultation is free. NDA available on request.

Response within 24–48 hrs (weekdays). Zoom / Google Meet available.

Reply
24–48 hrs
Meeting
Zoom / Google Meet
Language
EN / JP
NDA
Available
Send a Message GitHub
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