As LLMs and AI agents continue to reshape product experiences, search and recommendation are rapidly becoming core technologies that enable AI agents to perform complex professional tasks, rather than simply standalone features. In our global product “LegalOn,” the search and recommendation platform is also one of the most mission-critical systems.
In this role, you will join a team responsible for improving specific areas of the user experience in “LegalOn.” Leveraging your expertise in search and recommendation, you will play a core role in designing and developing AI agent features to deliver highly valuable product experiences for users. We welcome people who are genuinely interested in search and generative AI technologies and who enjoy shaping user experiences through collaboration.
Responsibilities
- Leverage expertise in search, recommendation, and AI to maximize user value as part of a team responsible for improving specific areas of the user experience
- Collaborate with product managers and related teams to explore various possibilities for what features to deliver to customers
- Follow the direction set by the Tech Lead or Project Leader, break down development tasks, and execute the development plan. For smaller projects or sub-projects, take on the role of project leader, creating a practical development plan for delivery and taking responsibility for its execution.
Requirements
- 3+ years of experience in web backend development or equivalent software engineering
- Experience in product development using Python or other major backend programming languages
- Hands-on experience with one or more cloud infrastructure services such as AWS, Google Cloud, or Azure
- A proactive attitude toward adopting AI-powered development processes and tools, regardless of prior experience
- Ability to communicate in Japanese (JLPT N2 or equivalent experience)
Nice to haves
While not specifically required, tell us if you have any of the following.
- An MS or Ph.D. in Computer Science, Mathematics, or a related technical field
- Experience designing and developing production-grade backend services using Go
- Experience developing and operating large-scale products built on a microservices architecture
- Hands-on experience in Apache Lucene, Elasticsearch, or Solr
- Hands-on experience in developing Agent applications and related component technologies such as LangGraph, Ragas, LlamaIndex, etc
- Experience mentoring/training junior engineers
- Strong communication skills, with the ability to work effectively across diverse cultures in both English and Japanese
- Experience in product development spanning multiple domains and technology areas, beyond a single area of expertise
Compensation
¥8,200,000 ~ ¥11,000,000 annually.
