Product Designer / UI/UX Designer

Tokyo
Partial Remote
Full-time
August 20, 2025

Overview

We are looking for a motivated Product Designer (UI/UX Designer) with a passion for product design to join our team to work on reshaping complex products with intuitive and effective solutions in the cloud security industry. Fluency in both English and Japanese is a must, along with strong communication skills to seamlessly collaborate with our cross-functional teams.

You will be working in a leading cloud-based security provider in Japan, focusing on projects related to our flagship product, HENNGE One, which offers access control, email archiving, and other security and productivity-related functionalities for enterprise companies. Therefore, experience in BtoB projects or a strong interest in this field would be advantageous.

Key Responsibilities

Develop visually appealing and user-centered designs based on requirements and research findings.
Collaborate with product managers and developers in the design process for new features and enhancements.
Utilize our established design system to maintain consistency and coherence across our interfaces.
Continuously improve user experience through iterative design and feedback analysis.
Advocate for user-centred design principles and contribute to the refinement of our design system.
Assist in creating and maintaining design documentation, including style guides, design principles, and user personas.
Work closely with customer support teams to address user feedback and identify areas for product improvement.

Requirements

Minimum Qualifications

Three years of experience in UI/UX design, with a focus on product design.
Proficiency in Figma for design collaboration and prototyping.
Strong problem-solving skills and a keen analytical mindset.
Good communication skills in both English and Japanese(N2 and above).
Willingness to learn more about product design and conduct user interviews.
Live, plan to live, or relocate within commuting distance of our Tokyo office

Nice to have

Experience working in the security-related industry
Experience working with design systems.
Knowledge of accessibility standards and best practices to ensure inclusivity in design solutions.
Experience conducting user research, including user interviews, surveys, and usability testing, to inform design decisions.

Benefits / Working Conditions

Employment Type

Permanent Employee

Place of Work

Tokyo Shibuya HQ
* In principle, coming into the office is recommended. (Depending on the department, the ratio of remote/office work can change)

Working Hours

10:00-19:00
* Flex Time (Core Time is 10:00-15:00) with 1hr break

Remuneration

Variable depending on experience and skill. (Please take a look at our Company Introduction Deck's explanation of our Assessment System as well as the Belt System we use.)

Examples of possible remuneration. However, please understand we cannot guarantee these values at the time of offer.

3 years experience of UI/UX Design, JLPT N2, Business-level English: 6.8M~9.3M JPY

Bonus

Once a year (December)
* Approximately 2 months' worth of salary is to be expected. (can vary with company/team/individual performance and evaluation)

Promotion/Raises

Yearly assessment, once a year (January)

Other benefits

English allowance: 10,000JPY ~ 130,000JPY / month, paid alongside base salary, if the employee fulfills the requirements

Office Bonus: Starting October 2025, 4,000 JPY / day for coming to the office and interacting with other employees, paid out as bonus according to the number of days. Details will be provided at the offer meeting.
* Place of Work can be changed at the discretion of the company.

Why Join Us?

Join a passionate team dedicated to making a difference in the SAAS services industry.
Enjoy a competitive salary and benefits package, including opportunities for professional development.
Embrace flexibility to explore side projects and contribute to the evolution of our design system.
Be part of an international work environment where your input shapes the future of our products.
Take advantage of language studies provided to enhance your language skills.
Work with MacBooks provided for work, with both office and remote work options available.
Gain access to design conferences and workshops to further your professional development.

Discover More About HENNGE Design

Interview Process

Fill out the application form and upload your Resume and Portfolio through this link: https://grnh.se/dqjpb40n1us
Please submit the following documents via the form:
- Resume
- Portfolio (please upload it from “cover letter” section). We will normally inform you of the screening result within two weeks via email and invite you to the several online interview rounds.
Casual interview (In Japanese)
Design assignment screening (Approximate time for the task 2-3 hours)
1st interview
2nd interview
Interview with our executives

APPLY NOW ➜Japanese Required ⚠️

About HENNGE

HENNGEは、「テクノロジーの解放で世の中を変えていく。」という理念のもとに、創業以来「ITコンシューマライゼーション」を意識したプロダクトを提供し続けています。

主には、クラウドサービスのセキュリティレベルを引き上げる「HENNGE One」などの自社サービスやITコンサルティングサービスを提供しています。

HENNGE One はMicrosoft 365、Google Workspace、Box、LINE WORKSなど複数のクラウドサービスへのセキュアなアクセスとシングルサインオンを実現するSaaS認証基盤です。IP制限、デバイス証明書、セキュアブラウザ、パスワードレス認証、多要素認証（MFA）など豊富な認証機能で利便性と安全性のバランスのとれたセキュリティサービスを提供します。

多要素認証を提供し、さらにコンシューマー市場で利用が拡がるクライアントベースの生体認証と連携することにより、脱パスワードの世界を作り出します。

社内公用語は英語、10国籍以上のメンバーが所属する超多国籍チームです。日本語&英語レッスンのサポートあるので、今は話せなくてもこれから日本語に挑戦したい外国人、グローバルな環境で英語力を磨いて成長したい日本人エンジニアに最適な環境です。

Salary
They offer performance based semi annual bonus, and special bonus for out-of-the-job remarkable contributions.
Japanese Language Policy
Japanese skills are a prerequisite for positions that require communication with Japanese speaking clients or third-parties. It might not be a requirement for software engineers, but it could be in other positions.
Visa Sponsorship
Do you sponsor a work visa for foreign employees?

Yes, we do, as long as you meet the requirements of the Japanese government (but this is the case at every company). This usually means that you will need a bachelor's degree or 10 years of demonstrated work experience in your field.
Paid Leave
- Yearly standard paid time off
- Short-term family care leave (5 days per year that can be used to take care of friends and family)
- Summer vacation (4 days)
- Congratulation or condolence leave (marriage, childbirth, or immediate family’s death)
Benefits
👩‍🎓 Language learning support

👨‍🏫 Advanced language expert allowance(English and Japanese)

💹 Employee stock option plan

🥤 Free Dr.Pepper program

🍔 Communication lunch program

💜 Social security/insurance benefits included

⚾️ Office clubs to join: coffee club, board game club, karaoke club, language cafe club, etc

🚃 Full commuting coverage (maximum of 180,000yen in 6 months)
Engineer Interview Process
Engineering Jobs

(1) Online coding test

(2) Online interview with the team for 3-4 rounds

(3) For new graduates: Participate in a mandatory internship program at our Tokyo office from 2-3 days up to 6-8 weeks (internship cost will be covered) For experienced engineers, you may be asked to participate in a 2-3 days/ 2 weeks trial period

(4) Interview with our board members

For more questions, please check our FAQ page for the screening process.
Remote Work
HENNGE fosters a hybrid work environment with emphasis on in-office collaboration and the encouragement for employees to work onsite.
Work style
- Standard working hours: 10:00-19:00
- Flex time: (Core time 11:00-16:00, 1 hour lunch break)
- Shortening of work hours is available for employees taking care of a child or children of a certain age.
Tech Stack
We use a large variety of technologies at HENNGE and always encourage the use of the right tool for the job. We strive to always use the latest and most up-to-date technologies. Our back-ends are primarily written in Python or Go while our front-ends usually use Vue or React. We heavily use CI/CD tools to streamline our workflows. We use microservice architectures utilizing both containerization and serverless design. Our systems are mainly deployed on AWS with the use of GCP as well. We use a huge range of services provided by these platforms to support our applications.
Diversity
We embrace diversity and we make sure that everyone is provided opportunities to do their best work.

We celebrate events like Tanabata, Hinamatsuri and Setsubun to introduce Japanese culture to our international employees.

Also, we provide a prayer/meditation room for our Muslim employees.

For company gatherings with food, such as our communication lunches we have twice a month, Halal options are always available so we can accommodate all of our employees.
Parents and Family
HENNGE allows shorter work hours for employees taking care of a child or children of a certain age. We also have a paid leave system, called short-term family care leave, which employees can use to take care of their family and friends when they are in need. We also have a family day where employees can bring their family to the company and spend time together.