Our Mission: Driven by our mission of balancing business and social contribution, we have developed and operated "skyticket", a travel booking platform that allows users to search and book economical flights and accommodations. Our Achievements: - Over 20 million downloads of our app since its release in 2015 - Demonstrated resilience within the travel sector, achieving profitability even amid the COVID-19 pandemic - Profits reached unprecedented levels in June 2023 - Establishment of 6 international subsidiaries - Our Global Workforce: Over 50% of our workforce comprises international employees, creating a genuinely global development atmosphere Why Join Us?: - Embrace a Global Environment Become part of a skilled group comprising professionals formerly from Amazon headquarters, Accenture, Salesforce and our Future Creator talent acquisition initiative. Excel in a diverse cultural setting by utilizing both Japanese and English, thereby improving your interpersonal skills and boosting your professional worth. - Drive Innovation and Growth Be part of a company that is dedicated to innovation, having launched three new services since 2023. Engage in innovative AI developments that are transforming the future of travel. - Seize Opportunities for Career Advancement Enhance your international knowledge and acquire significant experience that will distinguish you in the competitive job market. Engage in challenging projects that play a crucial role in the success of our organization. In the current rapidly evolving landscape where AI is gaining prominence, fundamental project management skills no longer adequate to maintain market relevance. For individuals seeking a global challenge and the opportunity to create an impact, "skyticket" offers a wealth of opportunities. Summary: We are seeking a skilled and passionate Back-End Engineer to join our dynamic team. As a Back-End Engineer, you will play a crucial role in developing and maintaining our travel booking platform, "skyticket". You will work closely with other engineers to design, implement, and test new features, while also ensuring the stability and performance of our existing systems. Responsibilities: - Develop and maintain back-end systems for our travel booking platform - Design and implement new features and enhancements - Conduct code reviews to ensure code quality and maintainability - Research and evaluate new back-end technologies Additional Opportunities: - Gain experience in modernizing and globalizing a service with over 7 million monthly active users (MAU) - Develop your skills as an engineer in a global environment - Collaborate with offshore teams - Gain management experience, if desired Technology Stack: Front-end: Vue.js, React, jQuery Backend: PHP, Go, Java Database: MySQL, PostgreSQL, Cloud Spanner, Redis Infrastructure: GCP, AWS Editor/IDE: Visual Studio Code

Required Skills: - At least 2 years of experience in backend web development using Java - Experience in database design - Experience in team development using Git - Experience communicating in both English and Japanese

Additional Skills: - Experience in introducing/using frameworks such as Spring Boot or Spring Framework - Experience in development and operation with microservice architecture - Experience in front-end development - Experience in software design - Experience in offshore development

The kind of person we are looking for: - Those who can take on new challenges without fear of failure. - Those who can lead others and those who can follow up on those who lead others. - Those who want to contribute to society by using the skills they have acquired. - Those who want to contribute to society by using the technology they have acquired. - People who are comfortable communicating in English (both text and conversation)