Back-End Engineer (SRE focus)

  • Tokyo
  • Partial Remote
  • Full-time
  • October 10, 2025
Conditions
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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: Not Required 👍
English: Business Level
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Minimum Experience
Mid-level or above

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

We are a technology company working on digitalizing international trading, and the first digital forwarding company in Japan (aiming to become No. 1 in Asia).

We are building a multi-sided digital platform which allows both customers (importer/exporter) and operators to efficiently and fluidly process international trade workflows, which are today processed mostly through human labor.

Our platform currently covers freight forwarding and we are aiming to expand our coverage throughout the international trade supply chain.

View Shippio's company page

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Back-End Engineer (SRE focus) at Shippio
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