Senior Backend Engineers

Job Description

Appealing Points:

• Work with Modern Tech Stack and Cloud Platforms: Gain hands-on experience with Java, Kotlin, NodeJS, and frameworks like Spring and ExpressJS, while deploying applications on Kubernetes and working in cloud-native environments.
• Deep Involvement in API and Microservices Architecture: Contribute to the design and development of scalable REST APIs and microservices, playing a key role in shaping the system’s architecture and technical foundation.
• Cross-Functional Collaboration Across Full Development Lifecycle: Collaborate with product, front-end, QA, and DevOps teams to take part in the full lifecycle — from requirements gathering to deployment, monitoring, and performance optimization.

Annual Salary: 8 Million and Above

Job Responsibilities:

• Design, develop, and maintain high-quality web applications utilizing REST APIs and microservices architecture.
• Collaborate with cross-functional teams (product, front-end, QA, DevOps) to gather requirements and translate them into technical solutions.
• Write clean, efficient, and reusable code using programming languages such as Java, Kotlin, NodeJS, and related frameworks like Spring, ExpressJS, etc.
• Develop and maintain database schemas and optimize queries for performance using MySQL.
• Implement robust security measures to protect data and ensure compliance with industry standards.
• Deploy and manage applications on cloud infrastructure platforms like Kubernetes (K8s).
• Collaborate with DevOps teams to streamline the deployment, monitoring, and scaling processes.
• Conduct thorough testing and debugging to ensure the reliability and stability of applications.
• Stay up-to-date with industry trends and best practices in software development, REST APIs, microservices, programming languages, databases, and cloud infrastructures.
• Participate in architectural discussions and contribute to the overall technology roadmap

Job Qualification: 

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent work experience).
• 7+ years of experience in backend software development.
• Proven experience in designing and developing REST APIs and microservices.
• Strong proficiency in programming languages such as Java, Kotlin, and NodeJS.
• In-depth knowledge of database technologies like MySQL and experience in optimizing queries for performance.
• Solid understanding of software development principles, design patterns, and best practices.
• Excellent problem-solving skills and ability to work in a fast-paced, collaborative environment.
• Strong communication and interpersonal skills, with the ability to effectively convey complex technical concepts to both technical and non-technical stakeholders.
• Experience with Agile development methodologies.

Preferred Qualifications

• Master's degree in Computer Science, Engineering, or a related field.
• Experience with distributed systems and microservice architectures at scale.
• Experience with monitoring and logging tools (e.g., Prometheus, Grafana, ELK stack).
• Experience with security best practices for web applications and APIs (e.g., OWASP).
• Experience with performance tuning and optimization of backend systems.
• Experience with front-end technologies such as HTML, CSS, JavaScript, and related frameworks like ReactJS is a plus.

Langauge Proficiency: Conversational Level Japanese (JLPT N3) and Business level english.

Company Description:

The largest eCommerce company in Japan, and the third-largest e-comBusiness-levelmerce marketplace company worldwide.

The organization provides a variety of consumer and business-focused services including e-commerce, e-reading, travel, banking, securities, credit card, e-money, portal and media, online marketing, and professional sports

[Measures against passive smoking]

No smoking indoors allowed

Designated smoking area