[Remote] Backend Engineer | Build Scalable Systems for Millions of Users

A leading digital platform based in Japan is seeking a mid-level Backend Engineer to join its high-performing product engineering team. This is a rare opportunity to work on a large-scale content delivery system used by millions, where performance, scalability, and clean architecture truly matter.
You’ll be joining a team that owns the full stack, builds everything in-house, and values autonomy, code quality, and continuous improvement. If you enjoy solving hard problems at scale and want your work to make a visible impact — this is the place.

What You’ll Do:

• Design and build backend systems using Java, Go, Python or Kotlin
• Own features end-to-end: architecture, development, testing, deployment
• Improve system performance, reliability, and maintainability
• Collaborate with cross-functional teams on product and platform improvements
• Contribute to tech evaluations, architecture reviews, and long-term planning

What We’re Looking For:

• 3–5+ years of backend engineering experience
• Proficiency in Java Go, Python or Kotlin (Any is fine)
• Experience with both relational and NoSQL databases
• Strong fundamentals and an agile, collaborative mindset
• Bonus: experience with microservices, Spring/JPA, gRPC/GraphQL, DDD, or DevOps practices
• Intermediate Japanese (N3+)

Why Join Us:

• Remote-first culture with flexible hours and location
• High-impact work on a product with millions of users and strong technical challenges
• Well-funded and stable, but with a startup pace and energy
• Real ownership of architecture and technical direction — your ideas won’t just be heard, they’ll be shipped