Senior Site Reliability Engineer (Checkout Platform: 7504)
Senior Site Reliability Engineer (Checkout Platform: 7504)
Job type:
Haken
Specialization:
Software/Web Development
Language Level:
English Level - Advanced (TOEIC 860), Japanese Level - None
Location:
Setagaya-ku
Salary:
¥4,600 - ¥5,000 Hourly
Job Reference:
507945
A Global IT Services firm is seeking a Senior Site Reliability Engineer to join the B2C Platform team. This role is responsible for the development, operation, and reliability of mission-critical services.
As a senior member of the team, you will contribute to the design, development, performance optimization, and operational excellence of large-scale production systems while providing technical leadership and ensuring high engineering standards across the organization.
Responsibilities:
- Design, develop, maintain, and operate APIs and backend services supporting the checkout and shopping cart platform
- Lead development and operational initiatives for middleware and cloud-based services
- Troubleshoot and resolve production incidents in large-scale, high-traffic environments
- Improve system reliability, scalability, performance, and maintainability
- Execute performance testing, capacity planning, and proactive operational improvements
- Drive DevOps and automation initiatives to enhance development and operational efficiency
- Conduct code reviews, design reviews, and technical mentoring to ensure production-ready quality standards
- Collaborate closely with cross-functional teams to deliver reliable and scalable solutions
- Contribute throughout the entire software development lifecycle, from system design to deployment and operations
Required skills:
- 5+ years of professional Java development experience
- Hands-on experience developing RESTful Web APIs
- Experience operating and supporting large-scale online production systems
- Proven experience troubleshooting and resolving production incidents
- Strong understanding of the software development lifecycle, including: Code standards, Code reviews, Source code management, Build processes, etc.
- Ability to independently design and develop high-performance, reliable, maintainable, and production-quality software
- Practical experience with DevOps methodologies and practices
- Ability to provide technical leadership and maintain engineering quality through peer reviews and technical guidance
Why should you apply:
- Global business
- You will be working with international team members
- Free breakfast, lunch and dinner at the cafeteria
Company Overview:
This is a global company with a strong presence in multiple business sectors. It has achieved sustained growth both domestically and internationally, including in the U.S. and Europe. The company prides itself on its diverse and international environment, providing ample career opportunities and a commitment to equal opportunity. With a wide range of business activities, the company also works with various technologies. You can choose your preferred working environment, whether Windows or Mac! Meals at the employee cafeteria are free, and the chef regularly comes up with new menus, ensuring you never get bored of the meals!
Work Hours: 9:00 AM – 5:30 PM (Flextime or staggered working hours possible)
Work Style: Hybrid (Typically 4 days in the office, 1 day working from home)
Holidays: Saturdays, Sundays, public holidays, New Year holidays, paid leave, bereavement leave, and other special leave
Benefits: Full social insurance (employee pension insurance, health insurance, worker’s accident compensation insurance, unemployment insurance), DC pension plan, transportation allowance, childcare and caregiving support, cafeteria, retirement benefit system, welfare services (Relo Club), health counseling services, relocation support (visa support, moving), employee discounts (moving, language classes, etc.), and more
Interview Process: 3~4 times



