• Full-time

Publication date: 2026.11.04

[Recruitment agency/Tokyo] IT/Systems Engineer

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Tokyo
  • Salary: JPY 5,000,000 - 9,000,000
【紹介会社/東京】IT/システムエンジニア
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile As a "digital creator production company," we aim to establish the social standing of engineers through solving our clients' challenges and through our own products, as a group of true professionals.
 Our company is not simply a staffing company for engineers. Through our Digital Talent Business, Contract Development Business, and Content Property Business, we create work opportunities and career opportunities for engineers, both inside and outside the company.

 Many talented engineers gather at our company, and by clustering our talent, we maintain stable business with more than 300 companies at all times, including major companies such as the Bandai Namco Group, the Recruit Group, and the Rakuten Group.

 Since our listing in 2014, along with the increase in the number of employees, we have steadily achieved growth in our business performance, and in the near future we aim to list on the Tokyo Stock Exchange Prime Market. Going forward, by participating in even better clients and projects, we can enhance the track record of our engineers.
仕事内容Job description The work we would like to entrust to you is system engineer work.
・Development of business systems for various industries
※Assumed scope covers upstream phases (requirements definition, basic design) through detailed design, implementation, and testing (unit, integration, and system testing)
・Package development
・Operation and maintenance work

We have stable business relationships with a wide range of companies, including industry-leading top firms such as CTC, SCSK, Sky, and Teijin in the IT sector, and Accenture and Shannon in the web sector.
Our employees join client projects as members of our production company, and can acquire a diverse range of skills and know-how that cannot be gained by staying at one company for many years!
応募資格Requirement ■Experience in developing with any of Java, COBOL, Python, C#, PHP, Go, JavaScript, or TypeScript for 12 months
■Experience with frameworks associated with the development languages for 12 months
日本語力Japanese level Business
雇用形態Employment type Full-time
勤務エリアLocation Tokyo
勤務時間Working hours 9:30-18:30 / 10:00-19:00
想定年収Salary JPY 5,000,000 - 9,000,000
条件・待遇Condition [https://www.e-xtreme.co.jp/career/environment/benefits/](https://www.e-xtreme.co.jp/career/environment/benefits/)

[Age]
58 years old or younger
[Salary]
Monthly salary: 333,000 yen~ 600,000 yen
Annual salary: 5,000,000 yen~ 9,000,000 yen
※Includes fixed overtime pay
[Employment type]
Full-time employee or contract employee
※Determined at the time of job offer according to the individual's preference and career history
Previous employment, experience, and abilities are given preference and considered, and determined according to company regulations.
For full-time employees, after joining (salary revision once a year), actual performance is fairly evaluated and determined according to company regulations.
[Working hours]
For the Extreme head office: 9:30~18:30 (break time 12:30~13:30, actual working hours 8 hours)
※May differ depending on the assigned project (e.g., 10:00~19:00, break time 1h, etc.)
[Number of hires]
Approximately 10 people
Expected annual salary: 5,000,000 yen~ 9,000,000 yen
※Employment type: Full-time employee or contract employee (determined at the time of job offer according to the individual's preference and career history)
Employment type: Full-time employee
[Work location]
"Tokyo and surrounding areas of Tokyo"
Ikebukuro head office or assigned project (client) sites in Tokyo and surrounding regions
※If the client has a work-from-home system, you may be asked to work from home.
選考についてProcess Application
↓
Document Screening
Screening will be conducted based on the application information you submitted, along with your resume and work history statement.
※For designers, the portfolio is also included.
↓
Interview (1–2 rounds)
Candidates who pass document screening will be interviewed by our company's interviewers, either in person or via web.
↓
Job Offer (conditions notice sent)
Those who accept will be invited to a session explaining the steps toward joining the company.
※Required documents will be provided during the joining explanation session.
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