Product Reliability Engineer (CRE), Money Forward Cloud, Tokyo/Fukuoka

Relocation Support Available! Overview At Money Forward, we provide services that solve financial challenges through the power of technology. Our flagship service, "Money Forward Cloud Expense," is used by a wide range of customers, from sole proprietors to large corporations, regardless of their scale. Since its release, Cloud Expense has grown into a large-scale product that supports businesses of all sizes, from startups to major enterprises. To maintain both "rapid feature delivery" and "high reliability" as we continue to scale, we are looking for a Customer Reliability Engineer (CRE) who embraces proactive operations—going far beyond simple maintenance and support. We are seeking an engineer who wants to use their technical expertise to untangle complex domain challenges, work at the closest point to our customers, and safeguard system reliability through the power of engineering. Main Responsibilities In this role, you will lead the following initiatives for our B2B SaaS platforms, "Money Forward Cloud Expense" and "Money Forward Cloud Accounts Payable," bridging the gap between technology and customer satisfaction. Reliability Engineering Monitor logs and metrics using tools like Datadog, and define/operate SLOs. Lead rapid incident response, root cause analysis (RCA), and the implementation of permanent fixes. Improve the health of the development cycle by automating and streamlining toil (repetitive manual tasks). Lead investigations and provide technical resolutions for high-difficulty customer inquiries escalated from the Customer Support team. Drive the standardization and acceleration of support operations using Generative AI and knowledge bases. Full-Stack Engineering Develop backend systems using Ruby on Rails and improve front-end experiences with React/TypeScript. Execute system-wide performance tuning and architectural changes to ensure high scalability. Cross-functional Product Improvement Collaborate closely with Customer Support and Product Managers to implement feature improvements based on user feedback. Propose and execute refactoring and architectural redesigns to eliminate technical debt. Required Skills and Experience Experience in the following web application development and operation: At least 5 years of experience and a proven track record in the large-scale development and operation of web applications using Ruby on Rails or other modern languages. An ownership-driven attitude; the ability to identify both engineering and organizational challenges as your own and take proactive steps toward resolution. Preferred Skills and Experience Experience developing GraphQL or REST APIs. Practical experience in a CRE (Customer Reliability Engineer) or SRE (Site Reliability Engineer) role. Experience with monitoring and SLO management using observability tools such as Datadog. Initiatives in operational improvement or automation utilizing Generative AI (LLMs). Experience handling technical inquiries within a Customer Support or Technical Support context. Experience with incident response (handling) and managing post-mortem workflows. Experience in infrastructure construction and operation using AWS or similar cloud platforms. Experience in AI development and/or experience in using AI tools to improve development processes. Money Forward recently announced our AI Strategy roadmap which focuses on improving AI-driven operational efficiencies, as well as integrating AI agents into our products to deliver better value to our users. (More information here) Language Requirements Conversational level Japanese (equivalent to JLPT N3 or above) Basic business level English (equivalent to TOEIC 700 or above) If you do not have a qualification equivalent to TOEIC 700 or above, you will be required to take a company-designated test during the selection process. If you have other qualifications or experiences that demonstrate your English proficiency, please let us know. ※Please note that the interviews in the selection process will generally be conducted in Japanese, though some English support will be available when necessary. Technology Stack Web Server-Side: Rails, Golang, Node.js, GraphQL Web Frontend: React, TypeScript, Next.js, Redux, Apollo Client, webpack, Jest iOS: Swift, SwiftUI, CoreData, Apollo, ReactorKit, Composable Architecture, Bitrise Android: Java/Kotlin, Android Jetpack (Camera, DataBinding, Navigation, etc.), LiveData/ViewModel, Dagger/Hilt, OkHttp3, Retrofit2, Apollo Android Database: MySQL (Aurora) Infrastructure & Middleware: AWS (ALB, EC2, ECS, RDS, S3, SQS, ElastiCache, EKS...), SendGrid, Kinsta, GCP (BigQuery, Firebase, GKE), nginx, Squid, Memcached, Kafka, Logstash, Filebeat, Maxwell, Kibana, Elasticsearch, Fluentd, Envoy, Puma, HAProxy, Docker, Redis, Terraform Tools Used Business Platform: Marketo, Salesforce, HubSpot Repository Management: GitHub CI/CD: CircleCI, ArgoCD, GitHub Actions Development Environment: Docker, Terraform Enterprise Monitoring: DataDog, Rollbar Communication: Slack Ticket Management: Jira, GitHub Issues Security & Automation:OWASP ZAP, Brakeman, SonarQube Work Environment At Money Forward, we provide an environment where we can create world-class services together, and we are looking forward to welcoming you. Provided PC Specs: We provide PCs equipped with the latest CPUs (MacOS or Windows). Custom-made PCs tailored to business requirements and replacements with the latest OS are also possible. Systems to Enhance the Development Environment: Peripheral devices necessary for work (such as displays, mice, keyboards) can be purchased as office supplies. Generally, you can choose from standard products (catalog), and if conditions are met, you can apply for non-standard products as well. Money Forward Library: We have a library system where you can freely borrow books, ranging from technical books to management books. Desired books can be purchased at the company's expense. Referral Driven: We cover the cost of recruitment meals. There is a referral reward system. Conference Participation Support: The company partially covers participation in domestic and international conferences, such as RubyKaigi and Google I/O. Fukuoka Development Base: New office in Fukuoka Daimyo Garden City. High-Energy Engineering Culture: A culture that invests in learning and exchange, including cross-product CRE workshops and support for conference attendance. Work Location We are currently recruiting for this position at the following locations: Tokyo Fukuoka Note for Overseas Applicants: If you are applying from overseas, your assigned work location will be Fukuoka. [UI Turn Support Campaign Ongoing] Money Forward is currently running a campaign to support relocation to our Fukuoka development base! We are offering 500,000 yen to assist with relocation expenses to engineers who join us mid-career and are currently living in Japan (conditions apply).