Senior Frontend Engineer jobs in Japan JPY6.5M-10M/year

April 12, 2023
JPY 6500000 - JPY 10000000 / year

Job Description

UNLOCK DESIGN is a recruiting agency in Japan that works with many Japanese companies who are either looking to begin expanding overseas or who are already global and boast multinational teams – this position is for one such company.

【Basic Information】
Company: HENNGE
Position: Senior Frontend Engineer (Vue.js)
Apply From: Overseas OK
Location: Tokyo
Salary: 6.5-10M yen
Language: English
Contract type: Permanent

Who we are

HENNGE is at the forefront of the changing workplace. In a world of constant change, we harnesses the power of transformative technology and makes it accessible and secure for all since 1996. Its a simple story, but one that drives us forward today.

HENNGE One, one of the top cloud security services in Japan, enables customers to adopt flexible work environments and safely harness the power of the cloud from any location. With cloud security taken care of, employees are free to focus on working smarter, improving quality and achieving business results.

We are eager to leverage the talent available worldwide. While expanding our business, we have changed our official language to English, and now enjoy a workforce with members coming from overseas. As our business continues to grow, we are looking for talented software engineers (front-end, back-end, DevOps) to join our team in Tokyo (no Japanese required).

Roles and Responsibility


HENNGE is a leading cloud-based security provider in Japan. We deliver an additional security layer to companies which move their operations to the cloud. Our service HENNGE One has over 70% of market share in Microsoft 365/Google Workspace targeted cloud security service in Japan. We are growing fast and are a listed company on the Tokyo Stock Exchange.

As part of the engineering team, you will be responsible for building cloud-security solutions used by thousands of enterprise companies. Our flagship product, HENNGE One, provides functionalities ranging from access control, email filtering, online storage, and email archiving. We focus on implementing state-of-the-art security functionalities, ensuring SLA 99.9% in distributed fault-tolerant deployment, and providing the best user experience to our customers.

Were currently looking for a senior Go engineer to join our fast-paced growing team.


  • Design, develop, and maintain innovative features based on business needs
  • Design scalable and fault-tolerant architecture in a distributed cloud deployment
  • Ensure high quality deliverables through CI/CD pipelines, tests, and documentation
  • Improve team synergy and mentor junior engineers
  • Collaborate with Design, Product Management and Customer Success teams to continuously improve the product

Our Tech Stack

Each product team is free to choose its own tech stack. Each project uses Typescript as the base language, with a combination of these technologies:


  • Composition API
  • SCSS
  • Vuex
  • Vue CLI
  • Jest

For our technical stack, you can check out

Minimum Requirements

  • 3 years of web development experience, with at least two years in Vue.
  • Ability to write proper type-safe code with Typescript
  • Ability to mentor junior engineers and work collaboratively in a team environment
  • Ability to write robust tests along with your code
  • Understand the importance of clean code and software documentation
  • Business-level English (Japanese is NOT required)
  • Last but not least, fits with open source and hacker culture

Preferred Requirements

  • Degree in Computer Science or other related technical fields
  • Experience with state management in a complex web app (e.g. Redux, Vuex)
  • Familiarity with design collaboration tools like Figma
  • Knowledge setting up build and test environments, CI/CD pipelines
  • Knowledge of Unix-like environment
  • Team leadership experience
  • Vue: experience with Composition API, SCSS

Reasons why you will enjoy working at HENNGE

  • HENNGE offers a diverse development team with people from over 10 different countries who love both technology and Japanese culture. Located in the heart of metropolitan Tokyo, HENNGE offers a non-traditional Japanese experience working in Shibuya, one of the busiest and most exciting places in the world.
  • Work-life balance is highly valued at HENNGE, and lots of fun happens at our office! Weekly board game nights, seasonal in-house events, monthly technical sessions, attendance of international tech conferences, new business contests, and many more.
  • Having our CEO acting as the CTO, we are driven to continuously explore and develop the latest technologies.

Conditions / Benefits

Employment type: Full time

Location: Daiwa Shibuya Square, 16-28 Nanpeidai-cho, Shibuya-ku, Tokyo

Annual Salary:

Hours: 10:00 – 19:00 with flextime (core hours between 11:00 – 16:00)


  • Annual paid leave (maximum of 10 days for the first year and will increase over time)
  • New Years holiday (Dec 29th – Jan 3rd)
  • An extra four days to be used during the summer time
  • National holidays
  • We also separately provide the ability to take paid time off to care for a family member

Probation: 3 months


  • Flexible working hours
  • Work-from-home option available
  • Insurance: Health, Employment, Industrial Injury, Welfare pension
  • Employee Stock Ownership Plan
  • Supporting Sexual Orientation and Gender Identity
  • Opportunities to attend international and domestic conferences
  • Financial support for technical certifications and technical learning programs

Interview Process * CV Screening

  • Coding test
  • 3-4 interviews

・ There may be a reference check * Offer

This process is subject to change


Apply here


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