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Liberont

Full Stack Engineer

Location
Tokyo
Remote
On-site / hybrid
Visa
Not specified
Language
Japanese: Conversational / English: Business Level
Posted
Feb 5, 2026
Ruby
Python
Javascript
React
Kubernetes
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Overview

We are seeking a talented Full Stack Engineer to join our innovative team. This role involves working on both front-end and back-end development to build and maintain our mobile/web applications.

If you are passionate about technology and excited to drive impactful projects in a dynamic start-up environment, we want to hear from you!

Join us to make a difference in the world of circularity and sustainability.

The Team

Our members come from top domestic and international companies, including McKinsey, Mercari, and Rakuten. You’ll have the opportunity to learn from talented individuals in the realm of business, engineering, and product development. As a team, we’re committed to continuous improvement and providing a fulfilling work environment.

Your Role:

Develop and maintain mobile and web applications using modern frameworks and technologies.

Design and implement scalable and efficient APIs.

Collaborate with cross-functional teams to integrate new features and improve existing ones.

Ensure the performance, quality, and responsiveness of applications.

Continuously improve and optimize code for maximum efficiency and performance.

Participate in code reviews and provide constructive feedback to team members.

Required Skills

  • Proven experience as a Full Stack Engineer or similar role.
  • Strong proficiency in front-end technologies such as HTML, CSS, JavaScript, and frameworks like React or Angular.
  • Expertise in back-end technologies such as Node.js, Python, Ruby, or similar.
  • Experience with database management systems like MySQL, PostgreSQL, or MongoDB.
  • Excellent problem-solving skills and the ability to work with complex systems.
  • Strong communication skills and the ability to collaborate effectively with team members.

Preferred Skills

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
  • Experience with cloud services like AWS, Azure, or Google Cloud.
  • Knowledge of DevOps practices and tools such as Docker and Kubernetes.

Hiring Process

1

Initial Interview with the CEO: A 30-minute discussion with the CEO.

2

Coding Test: Engineers must complete a simple coding test to verify their capabilities.

3

Final Interview: A comprehensive final interview to assess your overall fit with the company.

Quick Facts

CompanyLiberont
LocationTokyo
RemoteOn-site / hybrid
VisaNot specified
LanguageJapanese: Conversational / English: Business Level
Interested in this role?

Submit your application for this role at Liberont.

Apply Now