Principal Backend Engineer

  • Tokyo
  • Partial Remote
  • Full-time
  • May 22, 2025
Conditions
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¥9.8M ~ ¥15M /yr
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Apply from Japan Only
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No relocation to Japan
(No visa sponsorship from overseas)
Requirements
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Language Requirements
Japanese: Business Level
English: Business Level
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Minimum Experience
Senior or above

Japanese follows English

About Us

Quollio Technologies is a startup that develops and provides the Quollio® Data Intelligence Cloud. In just four years since our founding, we've successfully implemented our solutions for a variety of large enterprises, primarily for companies publicly listed on the Tokyo Stock Exchange Prime Market.

 

Role & Mission

As a Principal Backend Engineer, you will be responsible for frontend and backend development for our flagship product, the Quollio Data Intelligence Cloud. A key part of your mission will also be to maintain the quality and continuously improve localization for Japanese enterprise customers.

 

Your Responsibilities

  • Lead the team and independently develop and improve features that cover the entire technical stack used in Quollio, aligning with requirements and development plans.
  • As a Principal Backend Engineer, strive to maintain and improve the overall quality of the team's work.
  • Contribute to the overall business and customer satisfaction of the company under the guidance of senior management.
  • Maintain close communication and reporting with stakeholders (Product Managers, Sales, Support, etc.) to align with product strategy and business conditions.
  • Actively participate in mutual discussions among team members and lead improvements in design and processes.
  • Deliver a high-quality, intuitive, and user-friendly experience that meets the expectations of our Japanese customers.

 

Tech Stack

  • Frontend: React, Remix, Tailwind CSS
  • Backend: Golang, Goa, Python
  • Infrastructure: AWS, Vercel, Azure, GCP
  • Auth: Auth0, Amazon Cognito
  • DB: DynamoDB, OpenSearch, Databricks
  • CI/CD: GitHub, Terraform Cloud
  • Communication: Slack, Linear
  • Document: Notion, Google Workspace

 

Requirements

  • 10+ years of backend development experience (practical experience with Golang and Python is a plus).
  • 5+ years of experience as a team leader in a development organization.
  • 2+ years of business English communication experience (conversation and documentation).
  • Business Japanese or higher.

 

Preferred Experiences

  • Experience developing software products for enterprise customers.
  • Experience developing technologies such as Japanese Natural Language Processing or AI.
  • Practical experience in data management, data engineering, or data analysis.
  • A Bachelor's degree in Computer Science.

 

We Are Looking For Someone Who:

  • Actively supports the success and growth of team members, not just their own achievements.
  • Can communicate smoothly with senior management and stakeholders.
  • Finds meaning and value in working at a startup.
  • Recognizes the future potential and significance of enterprise data management.
  • Resonates with Quollio's vision and values.

 

Description

我々について Quollio Technologiesは、Quollio®︎ Data Intelligence Cloudを開発・提供するスタートアップです。 
東証プライム上場企業様を中心に、創業4年で様々な大企業のお客様に導入いただいています。 

 

役割・ミッション 

  • 主力製品のQuollio Data Intelligence Cloudで、フロントエンドおよびバックエンド開発。 
  • 日本のエンタープライズ企業向けのローカライゼーションの品質維持と継続的な改善。 

 

内容 

  • Quollioで使用される技術スタックを網羅し、要求や開発計画に沿った機能開発や改善を自ら行うとともにチームをリードする 
  • プリンシパル・バックエンドエンジニアとしてチーム全体の品質の維持・改善を心がける 
  • 上位マネージメントの指示のもと、会社全体のビジネスやお客様満足度の向上に貢献する
  • ステークホルダー(プロダクトマネージャー、営業、サポートなど)との報告・コミュニケーションを通して、製品戦略やビジネス状況と密に連携を行う
  • メンバー間の相互的なディスカッションに積極的に参加し、設計やプロセスの改善をリードする 

  • 日本のお客様の期待する、高品質かつ直感的でわかりやすいユーザー体験を実現する

 

■ 技術スタック 

  • Frontend: React, Remix, Tailwind CSS 
  • Backend: Golang, Goa, Python
  • Infrastructure: AWS, Vercel, Azure, GCP 
  • Auth: Auth0, Amazon Cognito 
  • DB: DynamoDB, OpenSearch, databricks
  • CI/CD: GitHub, Terraform Cloud 
  • Communication: Slack, Linear 
  • Document: Notion, Google Workspace

 


Requirements

  • バックエンド開発:10年以上 (Golang・Pythonを実務で使用したご経験のある方は尚可) 
  • 開発組織のチームリーダーとしての経験: 5年以上
  • ビジネスでの英語でコミュニケーションの経験(会話・ドキュメント):2年以上

 

Preferred Experiences

  • エンタープライズのお客様向けのソフトウェア製品開発経験
  • 日本語自然言語処理やAIなどの技術の開発経験 
  • データ管理、データエンジニアリング、データ分析に関する実務経験
  • コンピューターサイエンス学部ご出身の方 

 

We are looking for

  • ご自身の成果だけでなく、チームメンバーの成功・成長も積極的に支援いただだける方 
  • 上位マネージメントやステークホルダーとの円滑なコミュニケーションを行える方 
  • スタートアップで働くことに意義と価値を見いだしていただける方 
  • エンタープライズ・データマネジメントの将来性や意義を感じることができる方 
  • Quollioのビジョンや価値観に共感していただける方

Quollio Technologies creates products that enable Enterprise Data Intelligence.

In this realm, Quollio aims to platformize essential information required for organizational decision-making and operational data utilization, starting from metadata management to overseeing data presence and flow across departments.

A pivotal aspect of Quollio's products lies in the concept of abstraction. From handling metadata, which represents data about data, to conceptualizing practices and behaviors in data analysis and engineering, and even abstracting individuals and organizations for promoting Data Intelligence in large enterprises through user interface/user experience (UI/UX) design, Quollio pioneers novel concepts in data utilization within their products. By offering these functionalities in a user-friendly manner, Quollio ensures that their solutions stand out as unparalleled in the realm of Enterprise Data Intelligence.

With the recent Series A funding, Quollio embarks on a journey to foster further growth both within the company and their products. Consequently, they are seeking new development team members who are eager to contribute to this shared vision of growth and innovation.

View Quollio's company page

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Principal Backend Engineer at Quollio
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