Full Stack Engineer (CloudSign)

Japan (Full Remote)

Salary: Up to ¥16,000,608

Join one of Japan's leading LegalTech companies and help build the future of digital transactions.

CloudSign, a market-leading electronic contract platform adopted by over 2.5 million organizations, is expanding its engineering team to accelerate the digital transformation of business transactions across Japan. This is an opportunity to work on large-scale products that support contract execution, management, invoicing, payments, and the broader transaction lifecycle.

What You'll Do

• Design, develop, and maintain web application features for the CloudSign platform

• Define requirements and implement scalable solutions

• Improve system architecture, security, and performance

• Refactor existing code and manage technical debt

• Conduct code reviews and support development best practices

• Improve operational processes and service reliability

• Collaborate with engineers, designers, and product managers in Scrum teams

Depending on your experience, you may also:

• Lead technical initiatives and development projects

• Drive technical strategy and technology selection

• Solve complex technical challenges at scale

• Mentor and support other engineers

Requirements

• 5+ years of web application development experience using modern technologies

• At least 1 year of continuous experience working on a single product

• Strong full-stack development experience

• Business to Fluent Japanese communication skills

Preferred Qualifications

• Experience developing in-house products or SaaS platforms

• Experience with highly secure systems and products

• Development Team Lead or Tech Lead experience

• Scrum Master or Agile Coach experience

• Experience mentoring or managing engineers

Tech Stack

Backend

Go, Revel, Gorilla, Gorm

Frontend

Vue.js, Nuxt.js, JavaScript, TypeScript, jQuery, Sass

Infrastructure

AWS (ECS, RDS, Lambda, S3, Redis, SES, SNS, SQS, ELB)

Database

Aurora

Tools

GitHub, GitLab, GitHub Actions, GitLab CI, AWS CodeDeploy, JIRA, Slack, Google Workspace, esa.io

AI Development Tools

Cursor, Claude Code, GitHub Copilot

Why Join?

• Work on a platform used by millions of organizations across Japan

• Help drive the digital transformation of business transactions and contracts

• Tackle large-scale engineering and security challenges

• Work in cross-functional Scrum teams with strong engineering culture

• Full remote work environment

• MacBook Pro provided

• Freedom to choose your development tools and editor

• Book purchase support and continuous learning opportunities

If you're passionate about building scalable products, solving technical challenges, and shaping the future of digital transactions in Japan, we'd love to hear from you.