Back-End Engineer (SRE focus)
- Tokyo
- Partial Remote
- Full-time
- October 10, 2025
Description
Be the heartbeat of our engineering team as our new Backend Engineer with focus on infrastructure. Your mission is twofold:
(1) Build the core shippio product by extending our REST and GraphQL APIs with powerful new features.
(2) Elevate our engineering velocity by owning and dramatically improving our infrastructure, DevOps tooling, automation, and troubleshooting.
It's a central, non-stop role designed for a seasoned engineer who loves to bridge the gap.
What will you do?
- Enhance our CI/CD pipelines to improve efficiency and reduce manual intervention.
- Implement monitoring and logging solutions to ensure proactive issue resolution.
- Extend our existing logistic platform architecture and system infrastructure
- Act as an experienced leader to our team by reviewing code and mentoring juniors.
Requirements
What do you need to be successful in this role?
- At least 3 years of programming experience as a back-end engineer
- At least 2 years experience in cloud infrastructure (AWS, GCP, etc.) and DevOps
- Basic understanding of CI/CD principles and tools (e.g. GitHub Actions)
- Familiarity containerization technologies (Docker) and its orchestration.
- Solid architectural understanding (data structures, design patterns etc.)
- Experience designing REST APIs or GraphQL endpoints
- Experience with SQL databases, DB modeling, and ORMs
- Commitment to learn and master Ruby and Ruby on Rails (prior experience is not required)
Preferred Experiences
What is good for you to have?
- Strong debugging skills and ability to isolate and resolve problems in production
- As for Ruby, prior experience is not required, but since the majority of our backend is built on this technology, comfort with mastering a new language and framework is essential.
- Ability to quickly understand business requirements, and translate it into an appropriate architecture design
- Ability to autonomously manage tasks and create clear technical documentation
- Basic communication skills in Japanese are welcome
We choose tech to make shipping easy and reliable. We achieve this through robust CI/CD, timely version updates, and technologies that scale:
Ruby on Rails, Redis, PostgreSQL, ORM, REST API, GraphQL, Datadog, Auth0, AWS (ALB, S3, ECS, Aurora, RDS, CDK, Lambda, Quicksight, Bedrock, Route 53), OpenTofu, Claude/AI, Docker, GitHub Actions, E2E, Playwright, LaunchDarkly
About Shippio
Shippioは国際物流に必要な業務を一貫してサポートすることで物流業界を変革するスタートアップです。クラウド貿易業務ソフトと国際輸送を提供する次世代国際物流サービス「デジタルフォワーダー」を開発しています。
50年以上イノベーションの起きていない物流業界で、「理想の物流体験を社会に実装する」をMissionに掲げ、事業を進めています。
現在社内公用語は日本語ですが、 エンジニアリング部門は多国籍人材が半数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。現在の開発チームはエンジニア7人、プロダクトマネージャー2人の少数精鋭のチームです。 フラット、グローバルなチームで裁量を持って働ける環境です。
国際色豊かで多様性に溢れたメンバーと、お互いの言語や文化の違いを超えてコミュニケーションをとっていける方が活躍できる環境です。英語力を磨きながら多様性のあるチームで働きたい方にオススメです?
※必須言語要件:エンジニアは英語ビジネスレベル以上、日本語力不問(日本語力歓迎)。その他部門はポジションによって必要な言語レベルが違うため、詳しくは求人をご参照ください。
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