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以下、項目の中から現在のご自身の日本語スキルに当てはまるものを選択して記入してください。

・ネイティブ／母語レベル
・ビジネス上級（JLPT N1 相当）
・ビジネス中級（JLPT N2 相当）
・日常会話レベル
・日本語は使用できない

※業務上、日本語でのコミュニケーションが必要なポジションがあります。なお、JLPTの資格は必須ではありません。

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Please select the option below that best reflects your current Japanese language proficiency.

・Native / Fluent
・Advanced business level (equivalent to JLPT N1)
・Intermediate business level (equivalent to JLPT N2)
・Conversational level
・No Japanese proficiency

Please note that some positions require Japanese communication for business purposes.
Holding an official JLPT certification is not required.

現在の日本語能力（業務での使用レベル）※必須

本ポジションは日本（東京）での出社勤務が前提となります。東京へ転居し勤務することは可能ですか？
可能な場合は、想定時期に最も近い選択肢をお選びください。

This position requires on-site work in Tokyo, Japan. Are you able to relocate to Tokyo for this role? If yes, please select the option that best reflects your expected timeline.

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・ すでに東京近郊に在住しており、出社可能
　I currently reside in or near Tokyo and can work on-site

・ 日本国内（東京以外）に在住しており、転居可能
　I currently reside in Japan (outside Tokyo) and can relocate

・ 海外に在住しており、転居可能
　I currently reside outside Japan and can relocate

・ 現時点では転居は難しい
　I am not able to relocate at this time

※上記で「転居可能」を選択した場合、以下より時期を選択してください。
（1ヶ月以内／3ヶ月以内／6ヶ月以内／6ヶ月以上）

If you selected that relocation is possible, please specify your expected relocation timeline below:
(Within 1 month / Within 3 months / Within 6 months / More than 6 months)

日本への転居可否と可能時期※必須

DZSA-02-Senior Software Engineer, AI Agent & Search - LegalOn

We are a global leading company providing Professional AI — products that combine deep domain expertise with advanced AI.
Since our founding in 2017, we have focused on developing AI-powered legal technology, raising a total of approximately JPY 28.6 billion to date. In 2022, we established our U.S. entity, and in 2025, we accelerated our global expansion further through our first M&A, welcoming Germany-based Fides Technology into our group.
Our flagship product, LegalOn, is currently available in Japan, the United States, and the United Kingdom. In September 2025, just six and a half years after launch, LegalOn surpassed JPY 10 billion in ARR. Beyond legal, we are expanding into other highly specialized domains with products such as WorkOn, DealOn, and GovernOn, leveraging AI to support complex professional work.
Through our strategic partnership with OpenAI, we incorporate cutting-edge technologies such as AI agents into our product development. By delivering solutions that address a wide range of business challenges, we empower our customers to achieve better outcomes.

For more details about our company, products, and development organization:
https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95

### Key Responsibilities
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.

### Mission and Challenges
- 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
- Drive concrete and actionable development plans to ensure the successful delivery of product features
- Contribute to broader product development beyond search and recommendation to enhance the overall user experience
- Mentor team members in designing sustainable and highly maintainable software systems

### What You’ll Do
- Design, build, and deliver a wide range of search, recommendation, and Agent features/APIs
- Integrate LLM-powered applications with search and recommendation features to expand product capabilities
- Proactively maintain and operate search and recommendation systems to ensure high availability and performance
- Collaborate cross-functionally to investigate production issues in search, recommendation, and Agent systems, establish quantitative evaluation metrics, and drive continuous improvements
- Develop a deep understanding of user behavior regarding search and recommendation to contribute to broader product development and ensure a cohesive user experience

### Development Environment / Tools
Backend: Go, Python

For additional details, please refer to this notion page:
https://legalforce-recruit.notion.site/LegalOn-Technologies-f5ebe38a6009428ab0fb1714efd3c90a

DZSA-02-Senior Software Engineer, AI Agent & Search - LegalOn 応募フォーム