Security Tool Development
4.5 million to 7.2 million yen
職種
ITエンジニア【システム開発・SE・インフラ】
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
You will be responsible for the development, operation, and maintenance of the company’s in-house security-related products. Depending on your career goals and skills, you may also take on leadership roles such as Project Manager of a development team (around 5 members). This is an environment where your ideas are welcome, and you can take initiative in proposing and implementing new projects.
Main Responsibilities:
Software development for the company’s products
Requirements definition, implementation, and testing in collaboration with product teams and other internal/external stakeholders
Operation and maintenance of software, including responding to customer inquiries
Managing the entire development process from requirements definition through implementation and testing
Planning and proposing new product ideas
Why This Role is Attractive
You will work in the R&D department, developing in-house tools that directly support the company’s core software testing business. This position allows you to see how your contributions directly drive business growth, giving you a strong sense of achievement and purpose.
Team Culture
The team includes members in their 20s to 40s, with a friendly and open atmosphere. Communication between managers and members is flat, and it is easy to share opinions and ideas.
Salary
Monthly salary: ¥250,000 – ¥500,000
Annual income: ¥4.5M – ¥7.2M
Experienced developers can expect offers in the ¥6M – ¥7.2M range
Salary determined based on experience, skills, and previous salary
Includes biannual bonuses (May and November)
Annual salary review
Working Hours
9:00 – 18:00 (1-hour break) / 8 working hours per day
Flextime system available (core time 10:00 – 15:00)
Probation: 3 months (no change in conditions)
Holidays & Leave
Over 120 days off annually
Complete 5-day work week (Saturdays, Sundays, and national holidays off)
Paid leave: 10–20 days (granted after probation)
Refresh leave (2 days), summer vacation, year-end/New Year holidays
Special leave for weddings, funerals, and partner events
Parental, maternity, and childcare leave
Nursing leave and special leave for spouse’s childbirth
※ Up to 4 times a year, Saturday work may be required for company-wide meetings or training
Benefits & Welfare
Employment, workers’ comp, health, and pension insurance
Corporate welfare program
Employee stock ownership plan
Defined contribution pension plan
Internal recognition program
Childbirth congratulatory payment & condolence payments
“Women’s leave” (menstrual leave)
Subsidy for flu vaccinations (for employees and family)
Certification support programs
Company events & club activities
Shortened working hours system
Allowances:
Full overtime pay
Family allowance: ¥5,000 for first child, ¥10,000 for each additional child
Qualification allowance
Position allowance
Housing subsidy (JISEDAI allowance)
Technical skills allowance
Remote work allowance
Business travel/onsite work allowance
Retirement age: 60
Required Qualifications
Must-have:
1+ years of system development experience
0.5+ years of system testing experience
Hands-on programming experience with Python
Preferred:
1+ years of customer support experience
1+ years of PL, PM, or PMO experience
Programming experience with JavaScript
Relevant certifications in security, development, or project management
Ideal Candidate
Motivated to learn continuously and enjoy growth
Proactive in identifying and solving problems
Values teamwork and collaboration
Communicates clearly and effectively with others
Can translate business requirements into technical solutions
Comfortable working with different departments and clients
Education
Bachelor’s degree, master’s degree, vocational school, or high school graduate
Location
Kojimachi, Chiyoda-ku, Tokyo
(Sumitomo Realty Hanzomon Ekimae Building, 11F)
Remote work policy: Hybrid work available (approx. 3 days per week in office, based on department rules)
Smoking policy: Entire premises are non-smoking
Recruitment Process
Document screening
Online aptitude test
Interview (1–2 rounds)
Job offer
Start of employment
Start date is negotiable
Process may change depending on circumstances
