Company Introduction *Updated in August 2026 

Table of Contents Company Overview 3-9 Engineering Teams at HENNGE 10-19 Tech Stack 20-21 Assessment System at HENNGE 22-25 Company Benefits and Culture 26-29 Application Process 30 

We are HENNGE, a B2B SaaS company based in Shibuya, Tokyo, and Japan’s leading cloud security provider. Since 1996, we have held the majority market share and continue expanding globally. In 2019, we became a publicly listed company on the Tokyo Stock Exchange. With English as our official language, we foster a diverse, inclusive workplace with talent from around the world. Our name, “HENNGE,” is a blend of HENKA (変化 ), the Japanese word for change, and the word CHALLENGE. Inspired by the Japanese words henge (変化), meaning supernatural change, and henka (変化), meaning transformation, we embrace change as an opportunity for growth. In an era of rapid technological shifts, we empower those who challenge the status quo, using innovation to drive progress. As a Japanese IT company, we aim to inspire change on a global scale. 

Corporate Philosophy We want to deliver the power of technology to as many people as we can. Liberation of Technology テクノロジーの解放 Location Japan Taiwan USA Number of employees Percentage of international employees 430 20% *not including part-time employees Turnover Rate *As of FY 2025 Q4 6.6% *as of FY 2026 Q2 Nationalities 29 

Diversity Diversity is the key driver to keep challenging and changing. We recognize the differences and respect the differences. With this, we can create a basis for an ever-changing organization that values challenges. - Encourage diversity Keep evolving Respect differences Value challenges Look for differences if everyone is all the same Look for similarities if everyone is different 

Our Products 

HENNGE Customers Mail Cloud Customers Mail Cloud is a secure, high-delivery email service for notifications and bulk sends. It ensures your emails arrive reliably with 24/7 uptime, fast performance, and built-in spam protection. Backed by strong security, real-time monitoring, and ISO-certified infrastructure in Japan. Service Scope • Web GUI • Configuration management • Access to various reports • Email log search • Configuration management • Retrieve delivery status & error reports Email Delivery Control Relay Server #1 System Admin • HTTPS - API (get error address) Management Console Relay Server #2 Customer System • DNS Round Robin (balancing) Relay Server #3 DNS Server Error Email Reception / Analysis Recipient Mail Servers (e.g. docomo, Yahoo, etc.) 

HENNGE One Provide services that remove obstacles for companies that trying to improve productivity by adopting cloud in one-stop. Enhance security and usability of cloud to all the employees by having company-wide implementation. Identity DLP Cybersecurity Gmail SaaS Gmail Microsoft Exchange Identity SaaS Enable access management to support safe work styles for employees Microsoft Exchange Cyber security DLP Prevent information leakage via e-mail and cloud storage Improve the level of corporate security in all directions of technology, people, and processes HENNGE One’s service availability rate: Over 99.9% 

The market leader in the domestic market share Trusted by approximately 3,881 companies // 3.149 M users across diverse industries and business formats. *as of FY 2026 Q2 

Our Team 

Cloud Product Development Team Introduction Access Control Team Email DLP Team File DLP Team Orchestration Team Secure Transfer Team Email Archive Team Tadrill Team Platform Team HENNGE's engineering teams are comprised of over 50 talented software engineers, responsible for developing and maintaining the company's diverse product portfolio. Notably, 75% of these engineers bring a global perspective, hailing from various countries around the world. 

Access Control Team Tech Stack AWS React Responsibilities Developing and maintaining essential features within HENNGE One Identity Edition, including Access Control, Single Sign-On, and Secure Browser. This team drives continuous improvement and innovation to ensure secure and seamless access to corporate resources for our clients worldwide. Team FastAPI Terraform DynamoDB Rust Kotlin/ Swift HENNGE One: Identity Edition 1 2 2 1 Engineering Manager Tech Product Manager Tech Leads (Backend) Tech Lead (Frontend) 1 6 2 Tech Leads (Mobile) Backend Developers Frontend Developers *as of FY 2026 Q3 

Email DLP Team Golang TypeScript At the forefront of protecting sensitive data, this team develops and refines HENNGE One DLP Edition's powerful email filtering and Data Loss Prevention (DLP) capabilities, enabling organizations to effectively enforce email security policies and prevent data leakage. Team Tech Stack AWS Responsibilities Vue.js PostgreSQL Terraform DynamoDB HENNGE One: DLP Edition 1 1 1 Engineering Manager Tech Product Manager Tech Lead (Backend) 1 3 2 Tech Lead (Frontend) Backend Developers Frontend Developers *as of FY 2026 Q3 

Responsibilities File DLP Team As the newest addition to the engineering department, this team develops and maintains the File DLP feature within HENNGE One DLP Edition. This essential security feature provides robust file sharing restriction management and comprehensive oversight of file sharing activities within organizations. The team ensures the File DLP feature is secure, efficient, and user-friendly, while significantly contributing to HENNGE's mission of providing powerful tools for data protection and regulatory compliance. Tech Stack Team AWS Golang TypeScript React Temporal Kubernetes Terraform HENNGE One: DLP Edition Argo CD 1 1 Engineering Manager Tech Lead (Backend) 2 2 Backend Developers Frontend Developers *as of FY 2026 Q3 

Secure Transfer Team Tech Stack AWS Python React Kubernetes Responsibilities Developing Secure Transfer, a key component of HENNGE One's DLP features. This solution provides a user-friendly way for organizations to securely share sensitive data with external parties, mitigating the risks associated with data leakage. Team Golang TypeScript Github Argo CD Actions HENNGE One: DLP Edition 1 1 1 Engineering Manager Tech Product Manager Tech Lead (Backend) 1 1 2 Tech Lead (Frontend) Backend Developer Frontend Developers *as of FY 2026 Q3 

Email Archive Team Tech Stack AWS Develops and maintains the Email Archive feature within HENNGE One DLP Edition, a solution that reliably archives emails sent to and from our customers' email addresses. This team works collaboratively to provide a seamless and efficient archiving experience, helping organizations meet regulatory audit requirements and streamline email management. Team Python TypeScript Responsibilities Golang Docker Vue.js Sass HENNGE One: DLP Edition 1 1 1 Engineering Manager Tech Product Manager Tech Lead 3 2 Backend Developers Frontend Developers *as of FY 2026 Q3 

Responsibilities Tadrill Team Tech Stack Tadrill is a cybersecurity training platform that uses phishing simulations and e-learning to protect organizations from targeted attacks. By integrating intuitive reporting tools, it helps employees recognize threats and transforms security awareness into a daily, proactive habit. The Tadrill team manages the end-to-end development and maintenance of the platform. They are responsible for building the core infrastructure and creating user-friendly solutions that streamline security education for both internal stakeholders and external customers. Team AWS Golang Terraform SvelteKit Docker TypeScript PostgreSQL HENNGE One: Cybersecurity Edition 1 1 1 Engineering Manager Tech Product Manager Tech Lead (Frontend) 1 1 Tech Lead (Backend) Backend Developer *as of FY 2026 Q3 

Responsibilities Orchestration Team Develops and maintains Oukasho (the central "brain") and the HENNGE One Launcher (the public "face" of the platform), serving as a crucial, behind-the-scenes backbone connected to all HENNGE One Editions. This team works collaboratively to synchronize our product ecosystem with market demands, helping to manage the entire customer lifecycle and empower users with a seamless, self-guided onboarding experience. Tech Stack Team AWS Terraform Python FastAPI Vue.js Docker PostgreSQL TypeScript HENNGE One: All Editions 1 1 1 Engineering Manager Tech Product Manager Tech Lead 1 1 Backend Developer Frontend Developer *as of FY 2026 Q3 

Responsibilities Platform Team Architects and maintains HENNGE's Internal Developer Platform, fundamentally transforming and standardizing how applications are deployed across our growing suite of products. By moving away from isolated, team-specific infrastructures, this team provides the critical underlying backbone that safeguards the security of our entire ecosystem and ensures our products can scale flawlessly. Tech Stack Team AWS Terraform Kubernetes Argo CD Crossplane 1 1 2 Engineering Manager Tech Lead Engineers Docker HENNGE One: All Editions *as of FY 2026 Q3 

Language/Framework HENNGE’s Tech Stack At HENNGE, we empower our engineers to choose the technologies that best support our product development goals. Staying ahead in the IT industry, we are always eager to adopt new innovations and stay aligned with the latest trends in software engineering. Python Golang TypeScript React Vue.js Svelte GraphQL Kotlin FastAPI Sass Redux Swift Circle Cl Workflow Here’s a glimpse of the diverse tech stacks we use to drive our solutions forward. Github Github Actions DataDog Sentry Argo CD Playwright For more information, please visit https://stackshare.io/companies/hennge 

Storage/Infrastructure HENNGE’s Tech Stack At HENNGE, we empower our engineers to choose the technologies that best support our product development goals. Staying ahead in the IT industry, we are always eager to adopt new innovations and stay aligned with the latest trends in software engineering. AWS Kubernetes DynamoDB PostgreSQL Docker Communication Here’s a glimpse of the diverse tech stacks we use to drive our solutions forward. Slack For more information, please visit https://stackshare.io/companies/hennge Figma Github Terraform Elasticsearch 

Annual Assessment Degree Promotion Assessment System at HENNGE HENNGE provides a dual-track approach to career progression, allowing you to grow and thrive in your professional journey. We implement both annual assessments to acknowledge your contributions throughout the year and a degree promotion system to recognize your overall skill development. 

Annual Assessment Annual assessments evaluate your performance within your team over the fiscal year, with results directly influencing your annual salary. This ensures your contributions are recognized and rewarded regularly. 

Degree Promotion Our unique belt system provides a mid-term measure of your skills and abilities. Each belt level has an associated salary range, and you can apply for a Degree Promotion Examination whenever you feel ready to advance. Successfully passing the exam and moving to a higher belt demonstrates your increased expertise and comes with a revised and expanded salary range. 

Annual Salary Range JPY 25,000,000+ Salary Table Each grade of the salary range is represented by a 'belt' color. Each of these belt levels represents an employee's level of skills and abilities; the higher the belt, the more impactful their work is to the business. Platinum Belt JPY 16,500,000 JPY 15,000,000 Gold Belt JPY 13,500,000 Abilities Observed in Each Belt Level JPY 12,000,000 HENNGE's "belt" system reflects an employee's growth and capabilities. Here's what we look for at each level: JPY 10,500,000 ● ● ● ● Expertise: Deep understanding and effective application of knowledge. Leadership: Proactive problem-solving, contributing to goals, and strong self-leadership. Communication: Open communication, business proficiency, and English skills. Team Development: Positive impact on team performance, mentorship, and collaboration. Silver Belt JPY 9,000,000 Bronze Belt JPY 7,500,000 Brown Belt JPY 6,000,000 Green Belt JPY 4,500,000 White Belt *as of FY 2026 Q2 JPY 3,000,000 

Benefits and Perks Incentives Physical Communication Bonus English Allowance and Advanced Language Expert Allowance Transportation Allowance, maximum of JPY 4,000/day JPY 10,000-90,000 JPY 35,000/month (Monthly Incentive) HENNGE provide incentives for members who come to the office to have face-to-face communication with other employees, hoping to spark collaboration. For those who are also fluent in Japanese, incentives can reach up to 130,000 yen per month based on demonstrated proficiency. *(Starting October 2026, JPY 5,000 per day) *HENNGE provides a monthly English allowance based on employees' English proficiency levels, assessed using the CEFR-J framework. This evaluation covers listening, reading, speaking, and writing skills. To qualify, employees must apply according to the company's guidelines. Commuting expenses are provided based on the actual incurred transportation cost. *as of FY 2026 Q2 

Benefits and Perks Benefits Comprehensive social insurances: Health, Employment, Industrial Injury, Welfare Flexible working hours with a designated core working time Language learning support (English/Japanese) - weekly classes, certification, etc. Financial support for technical certifications and technical learning programs Access to online learning platform Opportunities to attend international and domestic conferences 

Benefits and Perks Perks ● Office clubs (after office hour activities), including board game night, karaoke, hiking, and more ● Employee Stock Ownership Plan ● Monthly Technical Sessions to share your learnings, experiments, and innovative ideas on cutting-edge technologies, industry trends, and best practices. ● Communication lunches ● Relocation support: flight ticket (for non-residents of Japan), visa arrangement, and accommodation guidance. ● And more! For more information, please visit hennge.com/global/lifeathennge/index.html medium.com/henngeblog 

HENNGE Way Love Technology Eat unripe fruits Be a learnaholic Love and use technology. Take on challenges and learn from mistakes early. Be endlessly curious. Get addicted to learning. Lead yourself with passion Help passionate HENNGE people Respect Differences Take the initiative with passion. Support people who are passionate about igniting changes. Differences are natural, stay diverse. Keep it open Track and trust Win together Share information and opinions openly. Act with speed, wisely taking acceptable risks. You can’t win alone. The mountain is high. So what do we do? 

Screening Process 01 02 03 04 05 06 07 Web Aptitude Test* Register 1. 2. 3. Coding Challenge Submit CV/CL Casual Interview During the interviews, there will be no live coding assessment. There might be a 3rd interview if an applicant is being considered for multiple teams. All applicants who passed the 2nd Interview will be required to take a web aptitude test. 1st Interview 2nd Interview Technical and Culture Fit Technical and Team Fit Final Interview 

If you are passionate about technology and eager to make a meaningful impact, we invite you to join our team. For more information, visit: recruit.hennge.com/en/