Full-Stack Engineer
Annual salary: ¥5,000,000 – ¥8,000,000
Type: Japanese ：N1 level required
場所:Tokyo
■Resume and work history written in Japanese are required (There is a possibility that your application will not be processed if you only have English documents).
■We are a recruitment agency conducting this recruitment on behalf of the companies seeking employees.
■Japanese N1 required.
■Required:
Employment Type
Full-time Employee
Job Description
Company Overview
Valtes Innovations, established in 2012, has been supporting business transformation through digital transformation (DX) and the use of cutting-edge technologies. The company provides a wide range of services including web and mobile application development, VR/AR/3D technologies, cloud solutions, and cybersecurity, with proven track records across industries such as manufacturing and government agencies.
A key strength of the company lies in its high-quality development process, leveraging the software testing expertise of its parent company, Valtes Inc. From requirements definition to maintenance and operations, they deliver comprehensive one-stop services. By utilizing prototyping, they minimize rework and clarify specifications early in the process.
The company also embraces modern approaches such as low-code/no-code development and AI-powered efficiency improvements. Valtes Innovations offers an environment where engineers can grow and continuously challenge themselves with new technologies.
Key Attractions
Three major points:
Strong relationships with large enterprises: Many enterprise projects via Valtes’ established presence in software testing.
Opportunity to work on cutting-edge technologies: Unique for a company of this size, Valtes handles 3D and metaverse projects, allowing engineers to expand into new technical fields while leveraging their core expertise.
Robust training and growth support: Valtes Group emphasizes “nurturing people.” Engineers can access training programs (such as Qbook and ValZemi) free of charge.
Qbook (software quality improvement platform): https://www.qbook.jp/column/1807.html
ValZemi (training programs for skill development): https://note.valtes.co.jp/n/nc8d616862e1f
Hiring Background
Due to the expansion of in-house services and contract development projects, the company is actively hiring full-stack engineers who can handle both new development and ongoing maintenance of web and mobile applications. Engineers with experience in cloud environments (e.g., AWS) or interest in AI-driven development efficiency are especially welcome.
Responsibilities
Design, develop, test, and operate web applications
Support mobile app development (iOS/Android)
Work across both frontend (React, Vue.js, etc.) and backend (Node.js, Python, Java, etc.)
Design and build CI/CD pipelines
Propose and implement UI/UX improvements
Collaborate with QA teams on test design and execution
Development Environment
Languages: JavaScript (TypeScript), PHP, Python, Java, C, C++, C#, VB.NET, Ruby, Kotlin, Swift, Objective-C, Delphi
Frameworks: React, Next.js, Vue.js, Laravel, Spring Boot, Django
Infrastructure: AWS (EC2, S3, RDS, Lambda, CloudFront), GCP, Docker, Terraform
CI/CD: GitHub Actions, CircleCI, Jenkins, Docker
Databases: MySQL, PostgreSQL, MongoDB, DynamoDB, Amazon Aurora, Azure SQL Database, Cosmos DB
Other Tools: Figma, Slack, Notion, Jira, Confluence, GitHub, GitLab
Position Highlights
Exposure to diverse tech stacks
Opportunity to work on both in-house services and contract development
Engineer-driven development culture
Remote work and flexible work style available
Multiple career paths (specialist or management)
Efficient development supported by prototypes and high-quality standards
Full lifecycle experience from requirements to testing and operations
Career Path Opportunities
Technical Specialist: Become a recognized expert in a specific technology area, contributing to research, strategy, and innovation.
Project Manager / Tech Lead: Lead projects and mentor teams while driving organizational success.
Product Owner (In-house Services): Take ownership of service strategy and direction, maximizing user value.
Work Environment
Remote work available (approx. 4–5 days/week depending on project)
Overtime: ~20 hours/month (100% overtime pay)
Flexible hours with core time (10:00–15:00)
Holidays: Weekends and national holidays, plus summer, year-end/New Year, and other special leaves
Compensation
Annual salary: ¥5,000,000 – ¥8,000,000
Monthly salary: ¥410,000 – ¥550,000
Overtime pay: 100% paid separately
Trial period: 3 months (no change in conditions)
Annual salary review: Once per year
Evaluation system:
Performance is assessed via both technical skills and competency evaluation. For customer-site assignments, feedback is based on both client evaluations and in-house assessment.
Working Hours
9:00–18:00 (1-hour break) / 8 hours actual work
Flexible work system with core time (10:00–15:00)
May vary depending on project/client
Holidays & Leave
Over 120 days off annually
Complete 5-day work week (Sat/Sun + public holidays)
Paid leave (granted after trial period)
Refresh leave (2 days), summer vacation, year-end/New Year holidays
Special leave (marriage, bereavement, partner leave, etc.)
Parental, childcare, caregiving leave
Up to 4 company-wide training/announcement Saturdays per year
Benefits & Welfare
Membership-based benefits services
Employee stock ownership plan
Defined contribution pension system
In-house recognition awards
Childbirth and bereavement benefits
“Women’s leave” (menstrual leave)
Influenza vaccination subsidy (employee + family)
Qualification support programs
Company events and club activities
Shortened working hours system
Allowances:
Incentive allowance
Full overtime allowance
Family allowance: ¥5,000 for 1st child, ¥10,000 for additional children
Position allowance
Housing subsidy (“JISEDAI allowance”)
Remote work allowance
External assignment allowance
Retirement Age: 60
Requirements
Must-have:
Web application development experience (both frontend & backend)
Team development experience using Git
Experience with one or more frameworks (React, Vue.js, Laravel, Spring Boot, etc.)
Japanese communication skills (N1 level or 2+ years of work in Japan)
Preferred (not required):
Experience with TypeScript, Next.js, Docker, AWS
Test design and automation experience
Agile development experience
Experience with AI-based development
Ideal candidate:
Strong curiosity and eagerness to learn new technologies
Good communication and teamwork skills
Proactive problem-solving mindset
Flexible approach to diverse technologies
Education: High school diploma or higher
Work Location
Tokyo Headquarters: Sumitomo Realty Hanzomon Ekimae Building, 11F, 1-6-4 Kojimachi, Chiyoda-ku, Tokyo
Osaka Office: Kanden Fudosan Nishihonmachi Building, 8F, 1-3-15 Awaza, Nishi-ku, Osaka
Other client sites
Remote work available
Smoking Policy
Smoking prohibited on premises (smoking room available)
Selection Process
Document screening
Interviews (1 or more rounds)
Offer
The process may vary depending on circumstances.
