SEIRO IWAMOTOFUKUOKA 33.59°N / REMOTEREV 2026.08
SPECIFICATION § 00 — PROFILE

Seiro Iwamoto岩元清郎

Forward Deployed Engineer (FDE) — AI/LLM in the customer's environment, from requirements to production.

Embedded in the customer environment, carrying design, implementation, infrastructure, production deployment, and handover to the customer end to end. Go / Python, AWS / GCP. Ten years of backend engineering.

FULL-CYCLE / SOLO-CAPABLE
APPLICATION
  • Move an AI/LLM PoC to production with authentication, authorization, and operations included
  • Rebuild cloud infrastructure that carries technical debt
  • Join before requirements are fixed and take on the design as well
OUT OF SCOPE
  • Engagements requiring regular on-site work
STACK
Python · Go · TypeScript / AWS (Bedrock · EKS) · GCP / Kubernetes · Terraform / RAG · GraphRAG · Knowledge Graph / VLM · OCR
CAREER
Backend 10+ years — Tech Lead on 4 projects / English-language environments
AVAILABILITY
Available from Nov 2026 — Sole proprietor · quasi-mandate · fully remote · 5 days/week, up to 160h/month
§ 01

WORK

4 CASE STUDIES
FIG. 1 — 2026

Full-cycle build and production migration of a standalone AI application

Built a standalone AI application single-handedly. Requirements, implementation, infrastructure, migration to production, and first-line incident response after release. What was built in a PoC environment was restructured and moved into the customer's own cloud environment for production.

Python / TypeScript / React / Vite / ECS Fargate / Kubernetes / Terraform / LLM API / RAG
OPEN SHEET →
FIG. 2 — 2026

Taking a research PoC into the product — knowledge graph feature shipped to production

Took graph analysis methods validated in a research phase and integrated them into the product customers actually use, carrying the work through to production release. Ported community detection, structural analysis, and dimensionality reduction to meet the product's data volume and response time requirements, working across front end, back end, and infrastructure alone.

Python / TypeScript / Nuxt / Vue / Django REST Framework / Knowledge Graph / GraphRAG / Neo4j / AWS Bedrock / EKS / Terraform
OPEN SHEET →
FIG. 4 — 2023–25

Big data SaaS platform

GKE Manual→Autopilot migration, a MySQL→Datastream→BigQuery data pipeline, and construction and operation of Airflow pipelines, handled continuously over two years.

Go / Python / GKE / Cloud Composer (Airflow) / Datastream / BigQuery / Spanner / Cloud Run / Workflows
OPEN SHEET →
FIG. 5 — 2023

Tech Lead in an English-language environment

Evaluated the issues in existing GCP infrastructure and redesigned it from scratch starting at the VPC with Terraform. Set up CI/CD, selected the security-assessment vendor, and ran scrum and hiring in English.

Go / GCP / Terraform / GitHub Actions
OPEN SHEET →
§ 02

SKILLS

LANGUAGES
Go · Python · TypeScript · JavaScript · SQL · Bash
FRAMEWORKS
Django / DRF · Echo / gin · React / Next.js · FastAPI · LlamaIndex
CLOUD / INFRA
AWS · GCP · Docker · Terraform · GitHub Actions
DATABASES
PostgreSQL · MySQL · DynamoDB · BigQuery · Elasticsearch
§ 03

ABOUT

Works fully remotely from Fukuoka. Uses chat and documents as the primary means of communication, and writes specifications and acceptance criteria before starting implementation. Writes test code in the same cycle as the implementation. Has run design, operations, and hiring communication in English over chat.

§ 04

CAREER

14 ENTRIES
2026Enterprise AI assistant platformEngineer
2025AI agent application developmentTech Lead
2025Business management system (Go · Next.js)Engineer
2024–25Big data SaaS platform (Phase 2)Engineer
2023–24Big data SaaS platform (Phase 1)Engineer
2023Infrastructure redesign and process improvement (English-language environment)Tech Lead
2022Game backend developmentEngineer
2021–22Zero trust platform operations automationEngineer
2021Consumer web app architecture designTech Lead
2020Serverless platform and batch developmentEngineer
2019Marketing platform developmentEngineer
2018–19IoT application developmentEngineer
2018Sports live-scoring tool developmentEngineer
2017–18Cross-border e-commerce site developmentEngineer
§ 05

CONDITIONS

Contract
Sole proprietor (quasi-mandate)
Working style
Fully remote (based in Fukuoka)
Working hours
5 days/week · up to 160h/month
Start date
From Nov 2026 (negotiable)
Rate
Shared individually
Availability
Available from Nov 2026
§ 06

CONTACT

Discuss a project (email) →
commit b39f343 — realchasesan.com
Author: Seiro Iwamoto <seirou.iwamoto@gmail.com>
Date:   2026-08-31
 
Signed-off-by: Seiro Iwamoto