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H.mz Engineering

Akira

AI Platform / DevOps EngineerJapan

Open to new roles

AI systems, and the delivery paths around them.

Retrieval, API gateways, automated checks, CI/CD and observability — from design through production operations.

workHMZ Open-source repos (6) Field Notes
Core domain
RAG · LLMOps · DevSecOps
Ownership
Design through prod ops
Experience
4+ yrs, dev & ops

Credentials & languages

AWS SAP

AMAZON WEB SERVICES · CERTIFIED

Solutions Architect – Professional

Top-tier cloud architecture certification

OCI AI Foundations Associate OCI Foundations Associate
  • JapaneseBusiness
  • EnglishTechnical docs
  • ChineseNative

Contribution calendar

2020–2025 are pixel-art drawings made with backdated commits; 2026 is real activity.

Tokyo · UTC+9

----00 JST

Toolbox

AI · RAG · LLMOps

AWS BedrockVertex AIDifyOpenSearchLangfuseMCP

CI/CD & DevSecOps

GitHub ActionsDocker · GKETerraformHelmTrivyCosign

Cloud & Observability

AWSGCPAzureCloudflareDatadogPlaywright

Live systems

– / –– ms

  • Transit board GitHub Pages – PROBING ↗
  • FileBox CF Workers – PROBING ↗
  • Stirling-PDF Azure VM – PROBING
  • LobeChat Vercel · private WAF SHIELDED

Sampled live from your browser. Protected endpoints are marked, never guessed.

Personal Open Source · GitHub

Open-source repositories(6)

Solo-built from scratch under workHMZ — API contracts, failure recovery and CI pipelines are all open in the code.

workHMZ/vertex2openai-cf
Personal OSS MIT TypeScript
OpenAI clientSDK · curl GatewayCF Workerscontract Vertex AIGemini reqreq SSESSE key rotation stream errors tool calls JSON Schema openai-compatible → vertex chat · responses

API integration

Vertex2OpenAI

One familiar API for Vertex AI Gemini.

OpenAI-compatible gateway for Chat Completions and Responses — explicit contracts for key rotation, mid-stream errors, tool calls and JSON Schema.

  • Cloudflare Workers
  • Vertex AI
  • SSE Streaming
  • JSON Schema
  • Zero-dep Edge Worker
workHMZ/aca-ghcr-cicd-lab
Personal OSS Apache-2.0 Python
retrieve Query EmbedONNX HybridBM25+vec Semanticrerank Answer+ citations same lab · same repo deliver BuildGHCR Signcosign · SBOM Canary Promote rollback

Retrieval & delivery

RAG Delivery Lab

From a search query to a controlled release.

Multilingual ONNX embeddings and Azure AI Search hybrid reranking, paired with signed images, SBOMs, canary rollout and rollback.

  • ONNX
  • Azure AI Search
  • Container Apps
  • Trivy · Cosign
  • Datadog

Enterprise Track Record · Career

Shipped in production(3)

Selected client work. Names stay private; scope and measured outcomes stay concrete.

  1. ~5,500 cases across all screens, solo

    AI-assisted E2E test automation platform

    • Contract-driven Excel → YAML → Playwright pipeline generating tests behind schema guardrails.
    • Fail-closed: two environments diffed across 12 checks with hash-linked artifacts.

    AI Platform / Test Automation

    SoloOngoing

    Python · Playwright · YAML · JSON Schema · Actions

  2. 43→65% search success, +22pt

    Knowledge-search RAG for a major telecom carrier

    • Document-routed Dify workflows and OpenSearch index design across 10,000+ PDFs.
    • Langfuse traces showed the bottleneck was retrieval design, not the model.

    AI / DevOps Engineer

    Team of 6

    AWS Bedrock · Dify · OpenSearch · Langfuse

  3. −60% deploy time via parallel caching

    CI/CD pipelines and operations automation for telecom

    • Shared GitHub Actions workflows reused across teams and projects, with Datadog dashboards and alerts.

    DevOps Engineer

    Team of 4

    GitHub Actions · Docker · GKE · Datadog · Shell