Profile
With more than 40 years of experience in software and data systems, I help teams understand complex data structures, knowledge relationships, architecture choices, and migration risks.
My work connects knowledge graphs, Neo4j, SQL/PGQ, GQL, GraphRAG, relational data, open standards, and open-source ecosystems including LibreOffice and Apache Hop according to the needs of each project. I do not begin with a product or trend; I begin with the problem, the data, and what has proved useful in practice.
Based in Fukuoka, Japan, I work with organizations in Japan and overseas. I have spoken at open source and data conferences across Asia, North America, and Europe.
長年のソフトウェア・データシステム経験をもとに、企業研修、設計判断、移行・検証を実際の案件に即して支援しています。
Approach
Three simple principles shape how I work.
仕事をするうえで、次の3つを大切にしています。
01
Recommend what I have tested
I recommend and teach technologies that I have used myself and found genuinely valuable. Practical experience matters more than a fashionable label or a polished product story.
自分で使って良いと思ったものを広めます。流行や製品説明だけではなく、実際に使った経験を重視します。
02
Reliability is built in the details
Data definitions, relationship semantics, migration mappings, validation rules, and operational details are rarely the most visible part of a project. They are often where reliability is won or lost.
華々しいものよりも、地道な仕事の中に重要なものがあると考えています。
03
Stay curious and enjoy building
Good engineering requires discipline, but curiosity and experimentation are also essential. I value the enjoyment of learning, trying ideas, and building something useful with others.
規律を大切にしながら、好奇心を持って試し、学び、開発することを楽しみます。
Selected Experience
Examples are described without client names or protected project details.
クライアント名や保護された案件情報を開示せず、支援内容の例を示しています。
Training
Enterprise GraphRAG training
A focused program for an engineering team, combining technical explanation with questions from their own project.
Advisory
Data model and architecture review
Review of graph data models, algorithms, architecture choices, and implementation questions for an industrial engineering initiative.
Migration
Migration planning and validation
Analysis of mappings, dependencies, data inconsistencies, character encoding, validation conditions, and cutover risks across legacy and new systems.
Business Information
Practice
Independent technical consultancy
You work directly with Koji Annoura from the initial discussion through delivery.
Location
Fukuoka, Japan
Remote and on-site arrangements can be discussed according to the engagement.
Languages
Japanese and English
Available for organizations in Japan and overseas.
Invoicing
Qualified invoice issuer in Japan
Formal business information is provided during quotation, contracting, and vendor registration.
Confidentiality
Client conversations and project details are treated as confidential. I do not publish or share client names, meeting content, internal architectures, data models, or other protected information without permission.
Public examples are limited to work that can be shared without identifying clients or disclosing information protected by NDAs or other confidentiality obligations.
相談内容や案件情報は機密として扱います。許可なく、クライアント名、打ち合わせ内容、内部アーキテクチャ、データモデル、その他の保護された情報を公開・共有しません。
Affiliations / Memberships
I participate in professional communities related to graph data management, systems engineering, project management, and agile practices.
グラフデータ管理、システムズエンジニアリング、プロジェクトマネジメント、 アジャイル実践に関する専門コミュニティに参加しています。
Member
Graph Data Council
Formerly known as the Linked Data Benchmark Council (LDBC), GDC defines standard graph benchmarks and fosters a community around graph processing technologies.
Member
INCOSE
International Council on Systems Engineering.
Member
PMI
Project Management Institute.
Member
Agile and Scrum professional community.
Professional Certifications
Certifications related to agile practices, product ownership, scaled agile, project management, and DevOps foundations.
アジャイル実践、プロダクトオーナーシップ、スケールドアジャイル、 プロジェクトマネジメント、DevOps 基礎に関する資格です。
Since 2009
Certified ScrumMaster (CSM)
Scrum Alliance.
Since 2011
Certified Scrum Product Owner (CSPO)
Scrum Alliance.
2016
Certified LeSS Practitioner
Large-Scale Scrum.
2014
PRINCE2 Foundation
Project management foundation certification.
2018
DASA DevOps Fundamentals
DevOps Agile Skills Association.
Honors & Awards
Recognition from open-source and graph technology communities.
オープンソースおよびグラフ技術コミュニティでの活動に対する評価です。
Jun 2018
Neo4j Ambassador
Community recognition from Neo4j.
Dec 2020
Nov 2023
Outstanding Technologies Project Award
Issued by Northeast Asia OSS Promotion Forum.