Job Description
Do you want to join a Fin-Tech company to start new career in Japan?
Require only English.
■ Job Title: Senior backend Engineer
■ Company Overview
Recently provide CashFlow Card, give users with more accessible and convenient fintech services that were previously not possible with credit cards and credit services by integrating with the CashFlow payment platform. We are looking for professionals who are passionate about refining our products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan and the financial life platform that uses them.
■ Your Role and Responsibilities
• Design and oversee the implementation of large-scale, complex systems.
• Manage team stakeholders including product managers, frontend engineers, other team leads, and non-technical stakeholders.
• Utilize infrastructure to address large-scale challenges effectively.
• Serve as a gatekeeper to maintain team quality standards.
• Prioritize, debug, and resolve product issues and incoming inquiries.
• Mentor other team members and uphold team quality standards.
• Back-end services:
o Main implementations are in Spring Boot, with a mix of Java 11/Spring Boot 2 and Java
17/Spring Boot 3.
o Some legacy systems are written in Java EE.
o Testing is done with JUnit and Mockito
o Deployment relies on AWS ECS
o CI/CD is handled by AWS CodePipeline
• Infrastructure
o All our services run in AWS
o Infrastructure is managed by AWS CloudFormation
o AWS CloudWatch is used for observability
• Coding environment: GitHub, IntelliJ, Gradle
• Documentation & Project management: Confluence, Miro, JIRA
• Communication: Slack, Zoom, Office 365
■ Experience and Qualifications
Proficiency in any object-oriented programming language such as Kotlin, Java, C#, or Scala.
Hands-on experience with both relational and NoSQL databases, as well as distributed caching systems.
Solid foundation in data structures, algorithms, and object-oriented design principles.
Comprehensive knowledge of concurrency and distributed systems.
Bachelor's degree in Computer Engineering or Computer Science, or at least 5 years of equivalent experience in SaaS platform development.
Business-level proficiency in English.
■ Additional Preferred Qualifications
Proficiency in Java and the Spring Boot framework.
Hands-on experience in developing platform components, including RESTful APIs, Pub/Sub systems, and database clients.
Expertise in designing scalable systems for high-traffic applications.
Strong knowledge of microservices and event-driven architecture.
Experience in designing and implementing gRPC communication.
Ability to work effectively in a multicultural environment.
Japanese conversational skills are a plus.
■ Good Reasons to Join
•Full remote everywhere in Japan.
• Super Flex Time (Core Time: 12:00pm ~ 3:00pm JST)
• In principle, 9:00am ~ 5:30pm (actual working hours: 7h30m + 1h break)
• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days
Paid leave:
• Annual leave (up to 16 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
• Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
• 401K
■ Salary
• Monthly salary
• Reviewed twice a year
• Bonuses paid twice a year (April and October) according to the company's performance and
the individual's evaluation
• Overtime allowance, Late overtime allowance, Commuting and transportation expenses
-
tokyo Talisman Corporation ￥900,000 - ￥1,200,000 per yearWe are seeking Backend Engineers to construct robust services with a keen focus on scalability and maintainability. · CashFlow Card aims to revolutionize the credit card industry, · simplifying payments from two distinct perspectives: · • Enhance the credit card experience: We ha ...
-
tokyo Talisman Corporation ￥3,000,000 - ￥6,000,000 per yearWe are looking for professionals who are passionate about refining our products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan and the financial life platform that uses them. · Design and oversee the implementation ...
-
Tokyo CADDi ￥10,000,000 - ￥13,000,000キャディは「モノづくり産業のポテンシャルを解放する」をミッションに、「製造業AIデータプラットフォームCADDi」を展開しています。データプラットフォーム上のデータの価値を最大化し、各アプリケーションや顧客ごとに最適化されたソリューションの提供を加速するため、2025年10月にData Plaform本部を新設し、CADDiの根幹を担うコア基盤の開発を行っています。 · AIデータプラットフォームのコア基盤の設計・開発 · 社内外のステークホルダーからの要求理解を通じた機能要件定義 · 高度なアーキテクチャの設計 · ビジネス要求に応じた可用性や応答性能 ...
-
Tokyo 株式会社ジーニージーニーが開発する自社AI搭載のSFA/CRM「GENIEE SFA/CRM」は、多くの顧客を獲得。YoYで300%の成長を誇り、エンタープライズ領域への進出という新たな成長フェーズを迎えています。 · しかし、その裏側で私たちの開発組織は大きな成長痛を抱えているのが実情です。 急拡大に伴う組織の未整備、ポテンシャルの高い若手メンバーへの成長支援の遅れ、そして過去の技術的負債。プロダクトの価値を最大化し、市場での競争力を確固たるものにするためには、これらすべてを解決し、組織と技術の両面を成熟させて行かなければなりません。 · ...
-
tokyo Talisman Corporation ￥900,000 - ￥1,200,000 per yearWe are looking for professionals who are passionate about refining our products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan and the financial life platform that uses them. · Collaborate with Product Managers, De ...
-
tokyo Talisman Corporation ￥4,000,000 - ￥8,000,000 per yearWe are looking for professionals who are passionate about refining our products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan and the financial life platform that uses them. · Design and construct a robust, scalab ...
-
Tokyo Talisman Corporation ￥600,000 - ￥1,800,000 per yearBack-end engineer supporting the visa x Global environment with senior high level experience in server-side application development, scalable data storage technologies, and business-level conversation skills in Japanese or English. · ...
-
Tokyo G Talent ￥4,800,000 - ￥7,200,000 per yearThe company is developing a new B2B SaaS product focused on groupware, workspace, and Identity and Access Management (IAM) solutions. · Collaborating with Product Managers, designers, and engineers to plan and execute engineering initiatives. · Designing and developing new featur ...
-
Greater Tokyo Area Randstad Japan ￥6,000,000 - ￥8,000,000 per yearAs a Software Quality Assurance Engineer, you will be instrumental in ensuring the reliability, consistency, and scalability of our web and mobile applications. · Design, implement, and continuously improve QA processes, tools, and standards across projects. · Develop, maintain, ...
-
Tokyo Specialized Group ￥9,000,000 - ￥11,000,000 per yearThe company's products are served in more than 25 countries around including Japan, The US, Singapore and more.The company is one of the leading global retail company. They owns several chains not only in Japan, but also worldwide. They are now seeking to transform the traditiona ...
-
Greater Tokyo Area Randstad Japan ￥6,000,000 - ￥8,000,000 per yearWe are seeking a Lead Front-end Engineer to join our team. As a key member of our engineering team, you will be responsible for shaping our web presence, developing and refining existing applications, and building new high-performance interfaces using React and other modern front ...
-
Tokyo Michael Page ￥8,000,000 - ￥12,000,000 per yearWe seek a mid to senior level engineer with leadership capabilities to support the growing needs of the section. · Develop and maintain the system and its applications, based on a Kotlin, scala, etc. language · Participate in technical discussions and decision meetings to support ...
-
tokyo Talisman Corporation ￥1,200,000 - ￥1,500,000 per yearDesign, develop, and maintain high-performance backend systems with Kotlin or Java. Engage in collaborative efforts with cross-functional teams to conceptualize, architect, implement new features that enhance our SaaS offerings. · Design, develop, and maintain high-performance ba ...
-
Tokyo, Japan AheadGroup ￥900,000 - ￥1,200,000 per yearWe are seeking a Senior Backend Software Engineer to work on various projects, including advanced AI solutions and APIs. · Rapidly develop and integrate micro-services for AI APIs. · Design and develop scalable cloud infrastructure. · Deploy solutions in multi-cloud environments ...
-
Tokyo, Japan AheadGroup ￥2,000,000 - ￥2,500,000 per yearAhead Group is seeking a Senior Backend Development Engineer focused on point-related products for one of our Global E-Commerce clients. · Lead backend development initiatives for point related products. · Collaborate with Product Managers, Project Managers, and business stakehol ...
-
Tokyo Talisman Corporation ￥8,000,000 per yearDevelop HR solution products using Ruby on Rails or Kotlin. · ...
-
Tokyo Michael Page ￥8,640,000 - ￥12,960,000 per yearBuild a core platform driving innovation across multiple company services. Shape architecture and culture in a new team adopting the latest technologies. · Develop backend systems for a shared workflow platform used across various internal products. · Collaborate closely with Pro ...
-
Tokyo, Kantō, Japan Source Edge KK ￥6,000,000 - ￥12,000,000 per yearThe Japanese manufacturing industry is estimated to be worth 180 trillion yen yet many manufacturers and their suppliers are unable to fully demonstrate their development potential and technological capabilities because they are hindered by quotations and administrative tasks, as ...
-
Tokyo, Tokyo Kraken ￥600,000 - ￥1,200,000 per yearWe're a technology company focused on creating a smart, sustainable energy system. From optimising renewable generation, creating a more intelligent grid and enabling utilities to provide excellent customer experiences, our operating system for energy is transforming the industry ...
-
Tokyo Kraken ￥6,000,000 - ￥12,000,000 per yearHelp us use technology to make a big green dent in the universe. We're a technology company focused on creating a smart, sustainable energy system. From optimising renewable generation, creating a more intelligent grid and enabling utilities to provide excellent customer experien ...
-
Tokyo Talisman Corporation ￥1,200,000 - ￥1,500,000 per yearWe are looking for a senior backend engineer to develop and maintain services written in Kotlin and Perl. The ideal candidate will have 5+ years of experience in backend/server-side application development and a solid understanding of core computer science principles. · Develop a ...
