The Technical Revitalization Division is a specialized team within the CTO Office, empowered by the CTO to support product development teams in addressing technical challenges and enhancing existing architectures.
Currently, we are deploying engineers to support the revitalization of an HR domain product, Money Forward Cloud Payroll . Additionally, we are seeking two more engineers for full-time assignments to assist in transitioning another product, Money Forward Cloud HRIS (Human Resource Information System) , to Kotlin.
As a Senior Backend Engineer, you will be responsible for leading projects primarily using Kotlin. Our products are currently in its growth phase, so we are actively seeking someone who can design an architecture and development strategy to accommodate future user expansion at scale.
Responsibilities
- Design, develop, and maintain high-performance backend systems with Kotlin or Java, ensuring scalability and reliability.
- Engage in collaborative efforts with cross-functional teams to conceptualize, architect, and implement new features that enhance our SaaS offerings.
- Understand existing features and define the best short, medium and long term strategy to migrate or re-architect systems to support our SaaS platform’s growth and scalability for.
- Identify and address issues which affect our products and lead the efforts to implement solutions across teams by making key technical decisions which define our future engineering direction.
- Proactively identify and address cross-product performance bottlenecks, ensuring the efficiency and responsiveness of our services.
- Design and implement robust and maintainable APIs that support both internal and external integrations.
- Work closely with product managers, designers, and fellow engineers to understand requirements and deliver high-quality solutions.
- Proactively engage in knowledge sharing across teams and the organization, promoting a culture of learning and development.
- Create and maintain technical documentation for systems, APIs, and processes.
- Collaborate with support teams to troubleshoot and resolve technical issues promptly.
Requirements
- Bachelor’s degree in Computer Science, Engineering, or a related technical field.
- 3+ years of hands-on experience in software engineering, particularly with Kotlin or Java, and in developing and operating web applications.
- Exposure to service-oriented or microservices architecture, with a basic understanding of scalable and modular design principles.
- Experience contributing to architecture discussions and design reviews, with a willingness to learn and grow in this area.
- Ability to analyze, design, and refactor code using various design patterns, with an understanding of how to identify and address anti-patterns.
- Proficiency in optimizing middleware components and improving database performance.
- Flexibility and adaptability to work with diverse technology stacks, with motivation to learn new technologies like Ruby on Rails and frontend frameworks.
- Experience participating in team-based quality improvement efforts, including code reviews and test code implementation.
- Hands-on experience with test design and operation using tools like JUnit, Kotest, RSpec, or Jest.
- Ability to mentor junior engineers and contribute to a collaborative team environment.
- Experience in incident response, including identifying issues, investigating root causes, and implementing solutions.
Nice to haves
While not specifically required, tell us if you have any of the following.
- Familiarity with Ruby, Ruby on Rails, React or Vue.js.
- Experience with containerization and orchestration tools such as Docker and Kubernetes.
- Experience with event driven architectures and similar patterns to optimize performance across our systems.
- Previous experience working with Scrum and Agile development methodologies, contributing to efficient and collaborative project delivery.
- Previous exposure to a SaaS environment will be considered an advantage.
- Japanese is not required, but an interest in learning is a plus
Compensation
6.408 to 10.008 million JPY annually.
