Full Stack Software Engineer (#468)

We are seeking a T-shaped cross-functional Full Stack Software Engineer who is communicative, adaptive, independent, and obsessive about problem-solving. In this role, you will design, build, and evolve web application frontend, backend, or both ensuring maximum performance, stability, and scalability. You will typically work in a dedicated squad (feature-team) but may collaborate across multiple squads to broaden your skills and experience.
 

Key Responsibilities:

• Design and develop web applications across frontend and backend components.

• Define and evolve the overall architecture of web applications to ensure high performance and stability.

• Collaborate within squads using Agile methodologies, contributing to continuous delivery and high-quality software standards.

• Implement and maintain RESTful web services and integrate third-party APIs.

• Support DevOps initiatives, including CI/CD pipelines, automated testing, containerization, and cloud deployments.

• Continuously learn and adopt new technologies and best practices in a collaborative DevOps community.

• Mentor and support team members while actively contributing to knowledge sharing and process improvements.
  
   

Required Skills & Qualifications:

• Strong proficiency in JavaScript libraries and frameworks, e.g., ReactJS.

• Proficient in server-side programming languages such as Node.js or Java.

• Solid understanding of HTML5, CSS3, and responsive web design.

• Experience with Agile methodologies, including Scrum and Kanban.

• Knowledge of version control tools such as Git.

• Familiarity with code quality and coverage tools (e.g., SonarQube).

• Basic understanding of containerization and orchestration tools (Docker, Kubernetes).

• Familiarity with both NoSQL (MongoDB, Cassandra) and relational databases (Oracle, MySQL, PostgreSQL).

• Understanding of asynchronous request handling, partial page updates, and AJAX.

• Basic understanding of software design/architecture processes, service-oriented architecture, microservices, and serverless architectures.

• Familiarity with RESTful APIs, Swagger/Open API specification, and integrating third-party APIs.
   

Experience:

• 5+ years developing web applications.

• Bachelor’s degree in Computer Science or a related field, or equivalent work experience.

• Experience across the entire Software Development Life Cycle.

• Business-level English proficiency (TOEIC 700 or equivalent).

• Japanese proficiency is a plus.

• Experience in life or P&C insurance domains is a plus.

• Experience with cloud technologies such as AWS or Azure is a plus.

• Knowledge of DevOps practices (CI, CD, TDD) is a plus.

• Familiarity with functional test automation tools (Selenium, Playwright, Cucumber) is a plus.

• Experience supporting interfaces between multiple application platforms (open and mainframe) is a plus.