Front-end Engineer (JavaScript: 4464)

Job Type
3,400 JPY to 3,700 JPY per hour
Japanese Level
English Level
Advanced (TOEIC 860)
Start Date


We are looking for a Front-end Application engineer for our user behavior analytics platform, which is one of data platform used for data analysis.

Among those, collecting data (public facing service) and visualizing the processed data in the UI (intra service) are our responsibility as front-end service.



You will be responsible for the following tasks regarding the user behavior tracking system:

- Understand the business requirements and expected output with having user perspective

- Review business requirements, specifications to provide meaningful feedback

- Based on business requirements, creating technical design documents

- Based on business requirements and technical design documents, planning from development to integration testing

- Coding, code review, writing unit test and executing integration and system testing

- Deliver outputs as much as possible considering business requirements, priority and delivery schedule

- Maintenance and operation on CI/CD pipeline

- Monitoring, maintenance and operation on production environment

- Development improvement proposal/setting the development standards for development team

- Communication with internal teams (product managers, QA engineers, project manager, etc.) to identify system requirements


【会社概要 | Company Details】

Our client is a large global Internet service company that has enjoyed sustained growth as they continue to expand their business in various new areas and industries. This is a great opportunity to work in a diverse and international environment in Japan. Our client actively strives to be an equal opportunity employer, and they have many female and foreign nationals in upper management positions. Their brand has also gained global recognition as they sponsor some of the world's most famous sports teams. Our client prides themselves in providing a comfortable working environment for their employees. Engineers are welcome to choose their own setup (Windows/Mac, etc.); whatever makes them comfortable! Free meals are also provided at the company cafeteria. Their chefs work to create exciting new menus and dishes, so employees never get tired of the food!
【就業時間 | Working Hours】
9:00 - 17:30(Mon - Fri)
【休日休暇 | Holidays】
Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays
【待遇・福利厚生 | Services / Benefits】
各種社会保険完備(厚生年金保険、健康保険、労災保険、雇用保険)、 屋内原則禁煙(屋外に喫煙所あり)、 通勤交通費支給等
Social insurance, No smoking indoors allowed (Designated smoking area), Commutation Fee covered up to 20,000 JPY per month, Free breakfast, lunch and dinner, Casual clothes is acceptable

Required Skills

- Proven work experience with JavaScript development

- Experience with web service development, web server management (Apache-like), Linux shell environment and scripting

- In-depth understanding of the entire web development process (design, development and deployment)

- Experience working in Waterfall and Agile/Scrum development process

Preferred Skills

- Experience with web server performance testing and tuning, load balancing

- Knowledge of C language, Node.js, Typescript, SPA (Single Page Application), mobile development

- Familiar with Adobe Analytics or Google Analytics and their concept