Back End Engineer (Permanent – Onsite/Remote – Tokyo, Japan)

An opportunity has come through our network for a Back End Engineer at Yudai Humanity Co., Ltd. This full-time, permanent position, based in Tokyo, Japan (Shibuya, Yoyogi), offers a competitive monthly salary ranging from ¥285,000 – ¥500,000 (annual salary of 4,000,000–6,000,000 JPY) and includes visa sponsorship. Remote work options are available upon consultation. You will be responsible for developing new services and additional features to expand the user base of a communication platform specifically tailored for foreigners, playing a crucial role in enhancing their digital experience.

What You’ll Be Doing: Developing and Operating Communication Platforms for a Global User Base

As a Back End Engineer, you will be deeply involved in the development, management, and operation of a communication platform designed for foreigners. Your role will encompass a wide range of responsibilities, from developing new features to resolving critical system issues and collaborating with external partners.

• Develop New Services and Features for Communication Platform: You will be responsible for developing new services and additional features to further expand the user base of a communication platform specifically tailored for foreigners. This involves designing and implementing backend logic, APIs, and database integrations that support new functionalities, ultimately enhancing the user experience and attracting more users to the platform.
• Development of SIM/Wi-Fi Application and Sales Websites: A core duty will be the development of SIM/Wi-Fi application and sales websites. This includes building robust backend systems that power the functionality of these websites, handling user applications, sales processes, and integrating with inventory and billing systems for SIM card and Wi-Fi router services. Your work directly supports the company’s core business offerings.
• Investigation and Resolution of SIM/Wi-Fi Management System Issues: You will play a crucial role in the investigation and resolution of issues related to the SIM/Wi-Fi management system. This involves diagnosing technical problems, tracing root causes, and implementing effective solutions to ensure the stability, reliability, and continuous operation of the system that manages user accounts, device activation, and service delivery for SIM and Wi-Fi offerings.
• Comprehensive Involvement in Software Lifecycle: You will be involved in a wide range of responsibilities across the entire software lifecycle. This includes active participation in development (coding new features), management (overseeing system health), operation (ensuring continuous service), maintenance (applying updates, bug fixes), and even negotiations with outsourced developers for project collaboration or issue resolution. This holistic involvement ensures a deep understanding of the platform.
• Training and Continuous Learning: In addition to on-the-job training from the current development team, external training opportunities are also available as needed. The company is committed to your growth and will fully cover the cost of training if you actively consult with them about your interests. This commitment to continuous learning helps you stay updated with the latest technologies and expand your skillset.

What You’ll Bring: Essential Skills for a Back End Engineer in Tokyo

To excel as a Back End Engineer, you’ll need practical backend development experience, proficiency in specific programming languages and databases, and strong communication and organizational skills.

• Backend Development Experience (1+ year): You must have more than 1 year of back-end development experience. This demonstrates your practical ability to design, code, and maintain server-side applications that power web and mobile functionalities.
• Ruby on Rails and MySQL Proficiency: You possess strong skills in Ruby on Rails for web application development and MySQL for database management. This proficiency is crucial for working with the company’s existing technology stack and contributing effectively to ongoing projects.
• Communication with Team Members: You are able to communicate smoothly with other team members. This is essential for collaborative development, participating in discussions, and ensuring clear understanding of project requirements and technical challenges.
• Efficient Multi-Project Management: You can efficiently manage multiple projects and tasks, and prioritize work. This indicates strong organizational skills and the ability to handle diverse responsibilities in a dynamic development environment.
• Desire for Continuous Learning: You have a strong desire to continuously learn new technologies and tools and expand your skill set. This commitment to ongoing professional development is vital in the fast-evolving tech industry.
• Conversational Japanese Language Proficiency: You must possess Conversational Level Japanese language proficiency. This is necessary for effective daily communication within the team and managing basic interactions in a Japanese-speaking work environment.
• Visa Sponsorship: Visa sponsorship is available for overseas applicants, facilitating your relocation to Japan.

Employment Details: Your Compensation and Work-Life Balance in Tokyo

This is a Full-time employee, permanent position with competitive compensation and a strong focus on employee well-being and benefits.

• Annual Salary: ¥4,000,000–6,000,000 JPY (negotiable based on experience and abilities).
• Monthly Salary: ¥285,000 JPY or more.
• Probation Period: 6 months (salary and benefits remain unchanged during this period).
• Annual Income Example: An example breakdown for an annual income of 4,000,000 JPY is a monthly salary of 285,000 JPY + two annual bonuses (equivalent to two months of salary based on last year’s results) + other allowances.
• Location: Tokyo Office (1-25-5 Yoyogi, Biz Smart Yoyogi, Shibuya, Tokyo). This location is a 3-minute walk from JR Yamanote Line “Yoyogi” Station.
• Remote Work: Remote work options are available upon consultation, offering flexibility.
• Work Hours: 10:00 AM – 7:00 PM (with a 1-hour break).
• Holidays: 120 days per year, including Saturday, Sunday, and public holidays, ensuring complete two-day weekends.
• Leave:
  • Paid leave: 10 days granted after 6 months of employment, up to a maximum of 20 days.
  • Other types of leave: Summer vacation, year-end and New Year holidays, condolence leave, maternity leave, childcare leave, nursing care leave.

Benefits: Supporting Your Professional and Personal Life

The company offers a comprehensive benefits package designed to support their employees’ well-being and professional life.

• Family Allowance: ¥10,000 JPY for spouse, ¥5,000 JPY per child/month (must be a dependent under social insurance).
• Marriage and Childbirth Gifts: Provided for significant life events.
• Full Social Insurance Coverage: Including employment insurance, workers’ compensation insurance, health insurance, and pension.
• Full Commuting Expense Coverage: Ensures ease of transportation.
• Remote Work Environment Support: Includes Remote HQ, indicating support for hybrid/remote work setups.
• Rental Welfare Benefits: Providing support for housing.
• Equipment Provided: PC, company phone, Wi-Fi router.