Full-stack Engineer

Date PostedJuly 6, 2026LocationShibuya, Tokyo, JapanCompanyMirai Works Inc.SalaryJPY 7000K - JPY 9000KTypeit (pc, web, unix) - fullstack engineer

Job Summary

The Full-stack Engineer will be responsible for end-to-end product feature development, including design, architecture, and maintenance of a sales process transformation SaaS. This role requires collaboration on technical strategy and project management to support the company's expansion into new markets. The position offers a hybrid work environment and focuses on scaling development efforts following recent funding.

Responsibilities

End-to-end product feature development
Architecture design and tech selection
Code reviews and technical debt resolution
Project management and process automation

Required Skills

High-maintainability coding
System design and tech stack selection
Japanese (JLPT N1 or higher)
Go or TypeScript/React experience (Preferred)
Agile/Scrum experience (Preferred)

Job Details

### Job Description [Specific Responsibilities] • Product feature development (requirements definition, design, development, testing, operation and maintenance) • Code review • Architecture conception and technology selection • System design with a medium- to long-term perspective, and resolution of technical debt • Business process efficiency improvement and automation • Project management in collaboration with the engineering manager ### Working Hours • Flextime (Core time: 10:00-15:00) • Standard working hours: 8 hours, break: 1 hour ### Job Requirements [Required Skills] • Ability to write highly maintainable code (considering test code and responsibilities for each layer) • Ability to formulate options from ambiguous requirements, propose the pros and cons of each, and select the optimal design and technology according to the situation • Japanese Language Proficiency (N1 or higher) [Preferred Skills] • Experience as a tech lead • Experience in agile development projects using a Scrum system • Development experience using Go or TypeScript/React [Desired Candidate Profile] • Empathy with our Mission and Values • Ability to make autonomous decisions • Enjoy learning and change ### Benefits and Holidays • Comprehensive social insurance coverage • Commuting allowance provided • Complete two-day weekend • Annual paid leave • Year-end and New Year holidays • Bereavement leave • Childcare leave • Special leave upon joining the company ### Other Information • Job Contract Period: Full-time employment • Measures against Passive Smoking: No smoking indoors