About HENNGE

HENNGE is a B2B SaaS company based in Tokyo Japan, and we are at the forefront of the changing workplace. HENNGE One, one of the top cloud security services in Japan, allows customers to adopt flexible work environments and safely harness the power of the cloud from any location. With cloud security ensured, employees are free to focus on working smarter, improving quality, and achieving business results.

Roles

We’re currently looking for a Senior Front-End Engineer (React) to join our fast-paced growing team. 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.

Responsibilities

• Design, develop, and maintain innovative features based on business needs
• Bring our design system to life by implementing high-fidelity UI using a modern frontend framework
• Ensure high-quality deliverables through CI/CD pipelines, tests, and documentation
• Collaborate with Design, Product Management and Customer Success teams to continuously improve the product
• Support the team by actively participating in discussions and reviewing others’ code
• Improve team synergy and mentor junior engineers

Our Tech Stack

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

React:

• Styled Components
• Redux (Toolkit)
• RxJS
• Jest/Testing Library
• Testcafe

For more information, you can also check our Stackshare page out.

Requirements

Minimum Qualifications

• 3 years of web development experience, with at least 3 years in React.
• 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)
• Interested in open source/tech community activities

Nice to have

• 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
• React: experience with Hooks, css-in-js libraries

Work style

Flexible working hours with core time. Hybrid work environment with emphasis on in-office collaboration and the encouragement for employees to work onsite.

Benefits

• Language learning support (English/Japanese)
• English allowance and Advanced language expert allowance
• Insurance: Health, Employment, Industrial Injury, Welfare pension
• Employee Stock Ownership Plan
• Opportunities to attend international and domestic conferences
• Financial support for technical certifications and technical learning programs
• Office clubs to join: coffee club, board game club, karaoke club, language cafe club, etc.
• Transportation allowance (maximum of 35,000yen per month)

Reasons why you will enjoy working at HENNGE

1. 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.
2. 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.
3. Having our CEO acting as the CTO, we are driven to continuously explore and develop the latest technologies.

Selection Process

1. Fill out the application form below and submit it.
2. Solve our coding challenge. (You will be receiving an email with guidance from us upon your submission).
3. Upload your CV and Cover Letter
4. Casual interview with our HR
5. 2 (or 3) interviews with our engineers
6. Interview with our CEO

• There's NO need to upload the Resume/CV and Cover letter below. You will be asked to upload it later after solving the challenge.

Want to learn more about how front-end engineers at HENNGE work?

Check out "Life as a Front-End Engineer at HENNGE: An Interview with Henry Lie"