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Backend Engineer｜ Up to ¥15M ｜AI Tech

Job Details

Location: Japan
Salary: Competitive
Job Type: Permanent
Specialization: Information Technology, Software Engineering
Reference: 57556
No consultant assigned to this job.
This client is a globally expanding Legal AI company that combines cutting-edge AI technology with deep expertise in law and contracts. With operations across Japan, the US, and the UK, and recent expansion through international M&A, growth is accelerating rapidly.
The core mission is to unlock value using LLMs and AI agents, in strategic collaboration with OpenAI. The flagship platform surpassed ¥10B ARR within just 6.5 years, and multiple new AI products are now scaling beyond legal into other high-expertise domains.As a backend engineer, you’ll join the Knowledge Platform team, building and operating internal-facing web applications that extract, structure, and optimize knowledge used across multiple AI-driven products. Your work will directly impact product quality, system performance, and business growth.
What You’ll Do
  • Design, build, and operate scalable web applications for information extraction
  • Own features end-to-end: planning, design, implementation, testing, and production
  • Improve system architecture, performance, and developer productivity
  • Work with cloud-native and containerized environments
  • Collaborate with a diverse, high-caliber engineering team in Japan and globally
What You Bring
  • 3+ years of experience in web system development
  • Experience designing systems on AWS, GCP, or Azure
  • Production experience in Python, Java, Go, Rust, or similar
  • Japanese and English proficiency (Business level) 

Compensation & Benefits
  • ¥9.2M – ¥15M annual compensation (based on experience)
  • Full-flex or discretionary work system (no core hours)

    Click "Apply Now" if you are interested in this role!

If this position is not ideal for you, but you are looking for a new opportunity,please contact us to discuss your options.

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