Business System Analyst

Job Type
700,000 JPY - 900,000 JPY per month + Transportation + Benefits + Overtime
Japanese Level
Advanced (JLPT Level 1)
English Level
Advanced (TOEIC 860)
Start Date



Our Client, one of the biggest Global Insurance Services providers in Japan is looking for a talented Business System Analyst who has a strong creative mind and good experience with analyzing, documenting, and explaining existing systems to various stakeholders.

You will be responsible to solve organizational information problems and requirements by analyzing requirements; designing computer programs; recommending system controls and protocols.


This is a long-term project, and after the initial contract (till Dec 2021) you will get another one (1) year extension.


Here is a rough sketch of what you will be expected to do:

  1. Business users will request do a certain type of data and applications
  2. You will be responsible to find that data on the database, and for this, you will have to read codes to understand applications, prepare documentation, meet with business owners and application team members to understand more about the data
  3. Run scripts to pull data from the databases
  4. After finding the right data and finishing the new documentation about that data, you will pass on the data and documents to the Data Custodian, who will work on that data
  5. You should be smart enough to perform reverse engineering to find the right data

If you have the right skillsets, please apply within.



- Analyze, document, and explain existing systems to various stakeholders.

- Discussion with application owners to understand the application, data flows.

- Understand API applications and gather the requirement from the API team.

- Create Mapping and specification documents for Hadoop ingestion developers. These developers are called Data Custodians and Data Modelers, and they are responsible for preparing Data Structures and Data Down streams

- Works under the direction of the solutions engineering team and executes investigations and analyses on various topics.

- Leverages technical skills to understand the lineage of systems and data flows, reads code of various systems, and documents the information collected

- Works within projects of varying scope or length under project managers

- Collaborates with the support team, application development teams, and some business stakeholders in order to perform the system reverse engineering and analysis.

- Delivers the results of the analysis with diagrams, excel, and presentations for stakeholders in the respective knowledge area.





- 既存のシステムを分析し、文書化し、様々な関係者に説明する

- アプリケーションオーナーと話し合い、アプリケーションやデータフローを理解する

- APIアプリケーションを理解し、APIチームから要件を収集する

- Hadoopインジェスト開発者のためのマッピングと仕様書の作成。これらの開発者は、データカストディアンやデータモデラーと呼ばれ、データ構造やデータダウンストリームの準備を担当する

- ソリューション・エンジニアリング・チームの指示の下、様々なテーマの調査・分析を実行する

- 技術的なスキルを駆使して、システムの系統やデータフローを理解し、様々なシステムのコードを読み取り、収集した情報を文書化する

- プロジェクトマネージャーの下で、様々な範囲や長さのプロジェクトに携わる

- システムのリバースエンジニアリングや分析を行うために、サポートチーム、アプリケーション開発チーム、および一部のビジネス関係者と協力する

- 分析結果を図やエクセルで示し、それぞれの知識分野の関係者に向けてプレゼンテーションを行う


【会社概要 | Company Details】
Global insurance company with over 40 years of experience in Japan with strengths in various sales channels and product lineup. The company focuses on creating diverse environments including but not limited to promoting the appointment of women.

【就業時間 | Working Hours】
9:00 - 18:00(Mon - Fri)*Work From Home till Covid-19

【休日休暇 | Holidays】
Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays

【待遇・福利厚生 | Services / Benefits】

各種社会保険完備(厚生年金保険、健康保険、労災保険、雇用保険)、 屋内原則禁煙(屋外に喫煙所あり)、 通勤交通費支給等

Social insurance, Transportation Fee, No smoking indoors allowed (Designated smoking area), etc.



Required Skills

- Experience with extract, transform and load (ETL) processing in a data warehouse environment

- Experience in multiple/ various systems, of legacy and new technologies or API and Hadoop

- Experience in RDBMS and SQL

- Experience with coding, so that you can read codes to understand the application (Java or C++ or JavaScript).

- Business system analysis experience and very good communication and presentation skills.


- データウェアハウス環境でのETL(抽出、変換、ロード)処理の経験

- レガシーと新技術またはAPIとHadoopの、複数の/様々なシステムの経験


- コーディングの経験があり、コードを読んでアプリケーションを理解できること(JavaまたはC++またはJavaScript)

- 業務システム分析の経験、および非常に優れたコミュニケーション能力とプレゼンテーション能力