Senior BackEnd Engineer (Python/API)

  • Partial Remote
  • Full-time
  • December 23, 2023
6,000,000 - 9,500,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Senior or above



We use Python to develop several key backend products. As part of a global engineering organization, we expect you to accelerate our product improvements. You will be working closely with Product Managers, Product Designers, SRE, BackEnd, FrontEnd, and mobile application engineers to deliver growth to our products.

    What You Will Do

    • Brainstorm and do design sprint with Product Managers, Designers, Backend, and FrontEnd Engineers to build new features, architectures.
    • Develop web API by using Python and Flask.
    • Maintain and improve existing products (mainly Python).
    • Build and improve CI/CD pipeline by using gitlab ci, k8s, docker, terraform and so on.
    • (Optional) Develop and improve GraphQL server by using Node.js.
    • (Optional) Develop ETL platform by using Python and Airflow.
    • (Optional) Develop a new API with modern technology such as Go or Scala for architecture improvement.


    Technical Skills

    • 6+ years of building software development with software development.
    • 3+ years of back-end and web API development experience.
    • 1+ years of building software development with Python.
    • Experience leading technical decisions.
    • Experience designing architecture.
    • Experience developing web products using Python.
    • Experience developing web products using Flask or equivalent restful API framework.
    • Experience developing products using docker and k8s.
    • Experience developing products using No-SQL and RDB or equivalent understanding.
    • Experience developing on AWS, GCP, or Azure cloud systems or equivalent understanding.

    Soft Skills

    • English(80% of engineers are non-Japanese. We are a very international team.)
    • Highly organized person.
    • Have motivation for team development.
    • Empathy for Behavior Identity of WealthPark.
    • Be able to weigh several and often conflicting constraints and make decisions in a fast-moving and quickly-growing company.
    • Continuously learn new technologies and find ways to solve issues and requirements.

    Preferred Experiences

    Nice to have:

    • Knowledge of CI/CD tooling such as Jenkins, Github Actions, Gitlab CI, ArgoCD.
    • Leadership experience
    • Deep understanding of some domain or business model
    • Experience about Apache Airflow
    • Experiences of development by PHP, Ruby, Scala
    • Experience working in the real estate or Fintech industry
    • Experience about Event-Driven Architecture
    • Experience with GraphQL.
    • Communication in Japanese (not required)



    2018年11月には米国へ進出し、米国の不動産テック・コミュニティとの関係強化を積極的に進めています。また、世界の不動産テック企業が集う「WealthPark NYC」では日本のスタートアップ企業で初めてオフィシャルイベントとして認定されました。不動産テックの本場ニューヨークから、グローバル市場を見据えて挑戦し続けています。

    会社全体として、社員の半数以上が外国籍(12か国以上)で構成されたダイバシティ豊かなチームです。現在社内公用語は日本語ですが、英語対応を進めており、国籍に関係なく優秀な人材が活躍できる環境を積極的に構築しています。 また、エンジニアリング部門は多国籍人材が9割以上というグローバルな環境で、日本語を不問としており、英語環境です。


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