Scoville

Experienced Ruby on Rails Engineer

Salary

900万 - 1300万

Location

Tokyo

Remote

On-site / hybrid

Visa

Sponsorship available

Language

Japanese: Business Level / English: Business Level

Posted

Oct 7, 2025

Ruby

Javascript

Typescript

Docker

HTML

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Overview

Looking to make a meaningful impact in Business & IT Consulting? Join our team as an experienced Ruby on Rails Engineer (with web technology skills).

Help us revolutionize Japanese industries through the provision of modern, innovative technology solutions. We're a dynamic team, seeking individuals who share our passion for building smart and functional applications for our clients. For this role, you must have demonstrable expertise with Ruby on Rails.

Responsibilities

This is a hands-on technical role, day to day activities include:
Propose solutions as a technology specialist in a small product team to maximize user experience and business outcomes.
Deliver working web-based software using the Ruby on Rails framework.
What We Can Expect from You
English language proficiency.
Hold a degree in Computer Science or equivalent experience.
5+ years of recent commercial programming with a strong emphasis on delivering Web solutions and Ruby on Rails.
Expert understanding of Ruby on Rails, and the Ruby programming language.
Experience with Turbo Frame and Turbo Stream.
Experience using the Stimulus JavaScript framework.
Deep knowledge of various web technologies, including how to design and build websites and web-based applications.
Expert understanding of JavaScript and TypeScript, HTML, CSS, etc.
Experience with AWS Services (we use many different AWS Services).
Experience with Containerization (we use Docker).
Status of residence:
For those in Japan: must have a working visa valid for more than six months.
For those outside of Japan: remote contract work is available until a visa can be prepared.
Bonus Points
Japanese language proficiency (strongly preferred).
Experience working with UX Designers & exposure to tools such as Figma.
Understanding of CRDT using tools like Yjs.
Experience using real-time communication technologies like ActionCable and WebSocket.
Understanding/experience with VoIP-related technologies.
Experience developing view components in Ruby on Rails using the ViewComponent library.
Understanding of OIDC and experience building OIDC Providers using tools like Doorkeeper.
Understanding of generative AI and experience using APIs such as OpenAI ChatGPT.
What You Can Expect from Us
¥9.0 - 13.0 million/year (negotiable based on experience).
10+ paid days off per year.
Flexible work hours, opportunity to work remotely.
Social and health insurance.
Commuting subsidy and work equipment provided.
An international team of talented and engaged creators who will value your input.
Visa sponsorship (after a 6-month trial period).