Product Designer / UI/UX Designer

📍 Job Overview

Job Title: Product Designer / UI/UX Designer

Company: HENNGE Careers

Location: Shibuya, Tokyo, Japan

Job Type: Permanent Employee

Category: Product Design / UI/UX Design

Date Posted: May 29, 2026

Experience Level: Mid-Level (2-5 years)

Remote Status: Hybrid

🚀 Role Summary

• Drive the creation of intuitive and effective user interfaces and experiences for complex cloud security products, translating user needs and business requirements into compelling design solutions.

• Champion user-centered design principles throughout the product development lifecycle, from ideation and research to prototyping and iterative refinement.

• Leverage and contribute to a robust design system to ensure consistency, scalability, and brand coherence across all product touchpoints.

• Collaborate closely with cross-functional teams, including product management, engineering, and customer support, to deliver high-quality, user-friendly solutions.

• Continuously enhance user experience by analyzing feedback, conducting user research, and advocating for design best practices within a dynamic, international work environment.

📝 Enhancement Note: This role is positioned within the cloud security industry, specifically for a B2B SaaS product (HENNGE One). The emphasis on "reshaping complex products" and "intuitive and effective solutions" highlights a need for strategic product thinking beyond purely aesthetic UI design. The requirement for strong English and Japanese fluency is critical for effective cross-cultural and cross-functional collaboration.

📈 Primary Responsibilities

• Design visually appealing, user-centered interfaces and interactive prototypes for new features and enhancements, aligning with product strategy and user requirements.

• Conduct user research, including interviews and usability testing, to gather insights that inform design decisions and validate design concepts.

• Collaborate with Product Managers to define product requirements and translate them into detailed design specifications and user flows.

• Partner with Software Engineers throughout the development process to ensure accurate implementation of designs and to address any technical constraints.

• Actively contribute to the evolution and maintenance of HENNGE's design system, ensuring consistency and efficiency across all product interfaces.

• Create and maintain comprehensive design documentation, including user personas, journey maps, style guides, and design principles.

• Analyze user feedback from customer support and other channels to identify opportunities for UX improvements and product enhancements.

• Advocate for design best practices and user advocacy within the product team and the wider organization.

• Stay abreast of industry trends, emerging technologies, and best practices in UI/UX and product design.

📝 Enhancement Note: The responsibilities imply a need for a designer who can operate both strategically (understanding product vision) and tactically (executing detailed designs). The mention of "customer support teams" suggests a feedback loop for continuous improvement that requires proactive engagement from the designer.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating practical application of design principles and methodologies is paramount.

Experience: A minimum of three years of dedicated experience in UI/UX design, with a demonstrable focus on product design and user-centered methodologies. Experience in B2B SaaS environments is highly advantageous.

Required Skills:

• Proven expertise in UI/UX design, with a strong portfolio showcasing product design projects.

• High proficiency in Figma for wireframing, prototyping, and collaborative design workflows.

• Solid understanding of user-centered design principles, interaction design, and information architecture.

• Strong analytical and problem-solving skills, with the ability to dissect complex problems and propose effective design solutions.

• Excellent communication and collaboration skills, with fluency in both English and Japanese (JLPT N2 or above).

• Demonstrated willingness to actively participate in user research activities, including conducting user interviews.

Preferred Skills:

• Prior experience working within the security-related industry or with B2B SaaS products.

• Experience in developing, utilizing, or contributing to design systems.

• Knowledge of web accessibility standards (e.g., WCAG) and best practices for inclusive design.

• Experience conducting various forms of user research, including surveys and usability testing, to inform design strategy.

• Familiarity with agile development methodologies and cross-functional team collaboration within such frameworks.

📝 Enhancement Note: The "Nice to have" section explicitly points towards candidates who can hit the ground running with minimal onboarding related to design systems and user research methodologies, suggesting these are core components of HENNGE's design process. The language proficiency requirement is non-negotiable and critical for team integration.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio that clearly demonstrates a user-centered design process, from initial research and ideation to final design execution and iteration.

• Case studies that highlight problem definition, user research findings, design rationale, prototyping, and the impact of design decisions on user experience and business outcomes.

• Showcase proficiency in Figma, illustrating the use of features for collaboration, prototyping, and component-based design.

• Examples of work that demonstrate an understanding of design systems, including how components were used or how consistency was maintained across different product areas.

Process Documentation:

• Portfolios should include documentation that walks through the designer's thought process, detailing how user needs were identified and addressed.

• Evidence of iterative design, showing how feedback and testing results influenced design changes and improvements.

• Clear articulation of the design challenges faced and the methodologies employed to overcome them.

• Demonstration of how design decisions contributed to specific metrics or business objectives, particularly within a B2B context.

📝 Enhancement Note: Given the emphasis on design systems and iterative improvement, portfolios should ideally showcase contributions to or deep understanding of design system principles and how user feedback loops are integrated into the design process. The "Why Join Us?" section mentions contributing to the evolution of the design system, making this a key area to highlight.

💵 Compensation & Benefits

Salary Range: Based on regional standards for mid-level Product Designers in Tokyo, with the provided examples, the estimated annual salary range is 6,200,000 JPY to 8,600,000 JPY. This range accommodates candidates with 5-6 years of B2B SaaS Product Design experience, JLPT N2, and business-level English. A more junior candidate with 3 years of UI/UX design experience, JLPT N2, and business-level English would likely fall within the 5,400,000 JPY to 7,200,000 JPY range.

Benefits:

• Employment Type: Permanent Employee

• Bonus: Twice a year (June and December), approximately 2.5 months of salary (performance-dependent).

• Promotion/Raises: Yearly assessment and adjustments in January.

• English Allowance: 10,000 JPY - 130,000 JPY per month, based on meeting specific requirements.

• Office Bonus: 4,000 JPY per day for office attendance and interaction.

• Professional Development: Access to design conferences and workshops, language studies, and opportunities for continuous learning.

• Technology: MacBooks provided for work.

• Other: Potential for English allowance and office bonus, contributing to overall compensation.

Working Hours: 10:00 - 19:00 with Flex Time (Core hours: 10:00 - 15:00), including a 1-hour break. This offers a degree of flexibility within the workday.

📝 Enhancement Note: The salary examples provided are crucial for setting expectations. The "English allowance" is a significant perk for international candidates. The "Office Bonus" incentivizes in-office collaboration, aligning with the hybrid work model. The provided salary ranges are derived directly from the examples given in the job description for specific experience levels and language proficiencies.

🎯 Team & Company Context

🏢 Company Culture

Industry: Cloud Security / B2B SaaS. HENNGE operates in a critical sector, providing enterprise-level cloud security solutions that are essential for businesses in the digital age. This implies a culture that values reliability, security, and innovation.

Company Size: While not explicitly stated in the provided data, HENNGE is a publicly traded company with a significant presence, suggesting a mid-to-large size organization with established processes while still retaining agility. This size offers a balance of stability and opportunity for impact.

Founded: Founded in 1996, HENNGE has a long history, indicating a stable and mature organization with deep expertise in its field. This longevity suggests a company that can adapt to market changes and sustain growth.

Team Structure:

• The design team is likely part of a larger product development organization, collaborating closely with product managers and engineers.

• The presence of a dedicated design system and design blog suggests a mature design function with a focus on shared practices and continuous improvement.

Methodology:

• User-centered design is a core methodology, emphasized by the need for user research and feedback analysis.

• Iterative design and continuous improvement are integral, driven by feedback loops with customer support and user testing.

• Design system utilization promotes consistency and efficiency, a common practice in modern product development.

• Agile methodologies are likely employed, given the collaborative nature and iterative development cycles.

Company Website: https://recruit.hennge.com/en/

📝 Enhancement Note: The company's focus on cloud security and B2B SaaS implies a professional, data-driven, and security-conscious culture. The emphasis on international collaboration and the specific language requirements suggest a company that values diversity and effective communication across different backgrounds.

📈 Career & Growth Analysis

Operations Career Level: This role is specifically for a Product Designer / UI/UX Designer, not a traditional operations role. However, within the design discipline, it represents a mid-level position requiring independent work, contribution to strategic design decisions, and mentorship potential.

Reporting Structure: While not explicitly detailed, the designer will likely report to a Design Lead or Head of Product Design, with close collaboration with Product Managers and Engineering Leads.

Operations Impact: In this context, "Operations Impact" refers to the designer's contribution to the operational efficiency and effectiveness of the product through superior user experience. A well-designed product reduces support load, increases user adoption, and improves customer satisfaction, all of which have direct operational and business benefits for HENNGE.

Growth Opportunities:

• Skill Advancement: Deepen expertise in UI/UX design, user research methodologies, and design system development. Opportunity to specialize in areas like accessibility or B2B SaaS design.

• Leadership Potential: Progress to Senior Product Designer roles, leading design initiatives, mentoring junior designers, and influencing product strategy.

• Cross-functional Exposure: Gain deeper understanding of product management, engineering processes, and the cloud security industry, opening avenues for broader product roles.

• Professional Development: Access to design conferences, workshops, and language studies to enhance skills and knowledge.

📝 Enhancement Note: While the prompt focuses on "operations," this role is in Product Design. The "Operations Impact" is reinterpreted to align with how design contributes to business operations. Growth opportunities are framed within the design career path and potential adjacent roles.

🌐 Work Environment

Office Type: Hybrid. HENNGE recommends coming into the office, suggesting a culture that values in-person collaboration and team cohesion, while also allowing for remote work flexibility depending on the department.

Office Location(s): Tokyo Shibuya HQ. This is a prime business district in Tokyo, offering accessibility and a vibrant work environment.

Workspace Context:

• Collaborative Environment: The hybrid model and emphasis on office interaction suggest opportunities for spontaneous brainstorming, design critiques, and team building.

• Tools & Technology: Employees are provided with MacBooks, indicating a standard, modern tech stack for design work. Access to Figma and potentially other design/collaboration tools is expected.

• Team Interaction: The "Office Bonus" incentivizes daily office interaction, fostering a strong sense of team presence and collaborative spirit.

Work Schedule: Flex Time with core hours from 10:00 to 15:00 allows for personal scheduling flexibility while ensuring team availability for collaboration during peak hours. This structure is conducive to focused design work and team synchronization.

📝 Enhancement Note: The hybrid model with an incentive for office attendance suggests a company that believes in the benefits of in-person collaboration for design and innovation, while still offering the flexibility modern professionals expect.

📄 Application & Portfolio Review Process

Interview Process:

• Application: Submit Resume and Portfolio via the application form. The portfolio should be uploaded in the "cover letter" section.

• Casual Interview (Japanese): An initial informal chat to gauge cultural fit and basic communication.

• Design Assignment Screening (2-3 hours): A practical test to assess design skills, problem-solving abilities, and approach to a given challenge.

• 1st Interview: Deeper dive into design experience, portfolio, and technical skills.

• 2nd Interview: Further assessment of skills, experience, and fit with the team and company.

• Executive Interview: Final stage to assess strategic alignment and overall suitability for the role and company vision.

Portfolio Review Tips:

• Showcase Process: Clearly articulate your design process for each case study, highlighting how you identified problems, conducted research, explored solutions, and iterated based on feedback.

• Demonstrate Figma Proficiency: Use Figma for interactive prototypes and clearly explain your use of components, styles, and collaborative features.

• Highlight B2B SaaS & Security Context: If possible, tailor case studies to demonstrate understanding of B2B product complexities, enterprise user needs, or security-related design considerations.

• Quantify Impact: Whenever possible, include metrics or qualitative feedback that demonstrate the positive impact of your designs on user experience or business objectives.

• Conciseness & Clarity: Ensure your portfolio is well-organized, easy to navigate, and clearly communicates your skills and experience. Prioritize quality over quantity.

Challenge Preparation:

• Understand the Product: Research HENNGE One and its target audience (enterprise companies) to understand the context of the design challenges.

• Design System Thinking: Be prepared to discuss how you would approach using or contributing to a design system.

• User-Centricity: Practice articulating how you would ensure user needs are met, even in a B2B context.

• Communication: Be ready to clearly explain your design decisions and rationale, especially during the design assignment and subsequent interviews.

📝 Enhancement Note: The interview process is multi-stage, with a practical design assignment and executive interview. The portfolio is critical and should be submitted in a specific section. Advice focuses on demonstrating process, tool proficiency, and contextual understanding relevant to HENNGE's business.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core tool for UI/UX design, wireframing, prototyping, and collaborative design workflows. Proficiency is a minimum requirement.

• Design Systems: Experience with or understanding of how to utilize and contribute to design systems is highly valued. This implies familiarity with component libraries, style guides, and pattern libraries.

Analytics & Reporting:

• While not explicitly listed for designers, understanding how to interpret user analytics (e.g., from tools like Google Analytics, Mixpanel, or Amplitude) to inform design decisions would be beneficial.

CRM & Automation:

• Not directly applicable to the core design role, but awareness of how CRM systems (like Salesforce) and marketing automation tools impact user journeys and data collection might be contextually useful for B2B SaaS design.

• Understanding of product management tools (e.g., Jira, Confluence) used for collaboration and workflow management.

📝 Enhancement Note: Figma is the explicitly stated primary design tool. The emphasis on design systems suggests a need for understanding component-based design and maintaining consistency, which often involves close integration with development workflows.

👥 Team Culture & Values

Operations Values: (Interpreted for Design Team)

• User-Centricity: A deep commitment to understanding and advocating for the user's needs and experience in all design decisions.

• Collaboration: A belief in the power of teamwork, open communication, and cross-functional partnership to achieve the best product outcomes.

• Excellence & Precision: A dedication to delivering high-quality, polished designs that are both aesthetically pleasing and highly functional, reflecting the critical nature of cloud security.

• Innovation & Continuous Improvement: A proactive approach to exploring new design solutions, embracing feedback, and consistently refining products and processes.

• Global Mindset: Valuing diverse perspectives and effective communication across different cultures and languages.

Collaboration Style:

• Cross-functional Integration: Working closely with Product Managers and Engineers as integral parts of the product development team, fostering a shared sense of ownership.

• Constructive Feedback Culture: Openness to giving and receiving design critiques to elevate the quality of work.

• Knowledge Sharing: A willingness to share insights, best practices, and learnings through avenues like the design blog and internal discussions.

• Agile and Iterative: Embracing flexibility and adapting designs based on new information, user feedback, and evolving project requirements.

📝 Enhancement Note: The company culture likely emphasizes professionalism, a strong work ethic, and a commitment to quality, given its industry. The international aspect and dual language requirement suggest a culture that values diversity and inclusive communication.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing User Needs with Business Goals: Effectively translating complex enterprise requirements and security needs into user-friendly designs that also meet business objectives.

• Designing for a Technical Audience: Creating intuitive interfaces for sophisticated cloud security products that may have a steep learning curve for some users.

• Maintaining Consistency in a Growing Product Suite: Ensuring a cohesive user experience across HENNGE One's various functionalities and potential future product expansions, leveraging the design system.

• Cross-Cultural Communication: Navigating communication nuances and design preferences within an international team and user base.

Learning & Development Opportunities:

• Specialization: Opportunities to deepen expertise in specific areas like advanced UX research techniques, accessibility design, or B2B SaaS product strategy.

• Design System Contribution: Playing a significant role in the growth and evolution of HENNGE's design system, gaining valuable experience in design governance.

• Industry Exposure: Attending design conferences and workshops to stay current with trends and best practices in UI/UX and product design.

• Language Proficiency Development: Access to language studies to further enhance English and Japanese communication skills, supporting career growth in a global company.

📝 Enhancement Note: The challenges are framed around the specific context of B2B cloud security design. Growth opportunities are tied to both skill development within design and broader career progression within the company's international framework.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to design a complex feature for a B2B product. What was your process, and what were the key challenges?" (Focus on process, problem-solving, and understanding of B2B user needs.)

• "How do you approach balancing user needs with business requirements and technical constraints? Provide an example." (Demonstrate strategic thinking and practical problem-solving.)

• "How do you ensure consistency and usability across a product, especially when working with a design system?" (Highlight your understanding of design systems and their importance.)

Company & Culture Questions:

• "What interests you about HENNGE and the cloud security industry?" (Show genuine interest and research into the company and sector.)

• "How do you see your skills contributing to HENNGE's design philosophy and goals?" (Connect your experience to the company's stated values and objectives.)

Portfolio Presentation Strategy:

• Storytelling: For each case study, tell a clear story: the problem, your role, your process, the solution, and the outcome/impact.

• Highlight Figma Usage: Walk through key screens and interactive prototypes in Figma, explaining your design choices and how you leveraged the tool.

• Emphasize Process Over Polish: While polished designs are good, demonstrating a robust, user-centered process is more critical. Show your thinking, iterations, and research.

• Quantify Impact: If possible, present metrics or user feedback that validate the success of your designs.

• Be Prepared for Design Assignment: Understand the potential scope and time constraints of the design assignment and practice articulating your approach under pressure.

📝 Enhancement Note: Interview preparation advice focuses on demonstrating a strong understanding of the design process, B2B SaaS context, and collaborative skills. The emphasis on portfolio presentation highlights the need for clear storytelling and process articulation.

📌 Application Steps

To apply for this Product Designer / UI/UX Designer position:

• Visit the application link provided and submit your application.

• Portfolio Customization: Tailor your portfolio to highlight relevant projects, especially those demonstrating B2B SaaS experience, strong Figma proficiency, and a user-centered design process. Ensure it's easily accessible and well-organized.

• Resume Optimization: Update your resume to clearly showcase your 3+ years of UI/UX and product design experience, emphasizing key skills like Figma, user research, and fluency in both English and Japanese (JLPT N2+). Quantify achievements where possible.

• Interview Preparation: Practice articulating your design process, rationale behind your decisions, and your approach to collaboration. Be ready to discuss your portfolio and the design assignment.

• Company Research: Thoroughly research HENNGE, its products (HENNGE One), its mission, and its design blog to understand their values, industry position, and design philosophy. Prepare thoughtful questions for the interviewers.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and industry-standard assumptions relevant to product design roles. All details should be verified directly with HENNGE Careers during the application and interview process.