English の求人一覧 - 株式会社LegalOn Technologies

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-3e114a8aecfb410a96424e34a0ed8bd6 We are currently building a new product from the ground up that centers around AI Agents, delivering a radically new user experience. AI Agents are intelligent tools that understand users' natural language, create plans, and autonomously execute tasks to completion on their behalf. This product is being built from scratch, and the backend plays a critical role in orchestrating LLMs, tools(MCP), custom workflows, agent's long/short term memory, and user data with reliability and flexibility. To succeed, we need backend engineers who are not only technically strong but also product-minded and eager to tackle ambitious challenges alongside a cross-functional team. If you’re excited about shaping the backend of intelligent, task-completing agents - while balancing speed, scale, and safety - we’d love to hear from you. 【Key Responsibilities】 You will take ownership of designing and developing the backend architecture for our AI Agent product. This includes implementing APIs that interface with agent engine, managing session storage, message queues, database and other backend components, ensuring robustness of task execution, and designing data models that reflect real-world agent behavior.As an early team member, you'll also be deeply involved in architecture design, technology selection, and team culture. This is not a “build to spec” role—you’ll collaborate closely with designers, product managers, and AI engineers to iterate quickly and deliver user-impactful features. ■What Mission and Challenges you’ll take on - Designing and developing core features to realize AI agents that can complete real-world tasks—not just engage in conversation - Designing and building a backend foundation from scratch, free from existing constraints and with a clear vision for the product’s future ■What You’ll Do - Design and develop backend systems for a new AI Agent product from the ground up - Build APIs, task orchestration systems, and data models that support dynamic, goal-driven agent behavior - Integrate external tools and internal components (LLMs, workflow engines, etc.) - Ensure reliability, observability, performance, and scalability in production environments - Contribute to automation, testing, documentation, and engineering process improvement - Mentor junior engineers and contribute to team growth ■What Makes This Job Rewarding - Collaborate as equals with product managers and business stakeholders as part of a unified team - Gain valuable decision-making experience in a fast-growing company where you will be trusted with significant ownership and influence over business, technical, and process direction 【Development Environment / Tools】 Backend：Python, Go ▼We have compiled information about development environments and tools for our other products on Notion. https://legalforce-recruit.notion.site/LegalOn-Technologies-f5ebe38a6009428ab0fb1714efd3c90a

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-3e114a8aecfb410a96424e34a0ed8bd6 【Key Responsibilities】 The Knowledge Platform team is building a company-wide platform that extracts and organizes valuable insights from a diverse range of data sources—including contracts, case files, legal documents, and internal materials—so that this knowledge can be leveraged across multiple products. We are seeking a mission-driven Software Engineering Manager to lead the development of internal applications and platform features that extract, structure, and serve knowledge from a diverse range of documents and internal content. You will help accelerate LegalOn’s AI-native transformation by optimizing the information extraction process and enhancing our platform’s impact across multiple products. ■ What Mission and Challenges You’ll Take On - Build and scale a robust knowledge platform that powers various LegalOn products by structuring unorganized data into reusable knowledge - Lead the development and operation of internal web applications used for document processing and information extraction - Drive cross-functional collaboration to streamline data ingestion, annotation, and review workflows across the organization ■ What You’ll Do - Define and drive the technical vision, architecture, and roadmap for the knowledge platform and internal tools - Collaborate with product managers, designers, and AI engineers to identify opportunities and prioritize features - Manage day-to-day execution of software projects, ensuring high quality and timely delivery - Support the growth and engagement of a high-performing engineering team through hiring, mentoring, and performance management - Continuously improve the team’s development lifecycle, including design reviews, testing strategies, deployment automation, and operational excellence The details are described in the Notion page below: https://legalforce-recruit.notion.site/LegalOn-Technologies-f5ebe38a6009428ab0fb1714efd3c90a

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95 ■Job Description We are looking for a highly skilled and experienced AI Engineer to join our team. You will be at the forefront of designing, developing, and deploying AI agents that leverage cutting-edge AI techniques to streamline corporate business processes, with a strong focus on the legal domain. This is a unique opportunity to apply your expertise in AI and software engineering to solve complex, real-world challenges in a high-impact setting. ■Key Responsibilities What You’ll Do: - Design and implement robust AI agents. - Integrate AI solutions with existing SaaS platforms and legal workflow systems. - Evaluate third-party models, frameworks, and services to determine their suitability and integration potential. - Collaborate with cross-functional teams to gather requirements, understand user needs, and deliver high-impact agent solutions. - Build tools and infrastructure to monitor, test, and evaluate AI agent performance. - Conduct code reviews and maintain best practices in documentation and version control. - Diagnose and resolve issues in AI systems to ensure accuracy, reliability, and scalability. What You’ll Get: Join our collaborative, high-performance culture driven by curiosity and continuous improvement. You'll work alongside passionate professionals in an environment that fosters innovation and creative problem-solving. Together, we tackle complex challenges in legal automation, leveraging AI to transform the industry.

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95 ■Job Description We're seeking a highly skilled GenAI NLP Engineer specializing in legal data, focusing on NLP-based productions systems, to join our dynamic team at LegalOn. In this crucial role, you will be at the forefront of revolutionizing the legal tech industry by applying cutting-edge NLP and generative AI technologies to automate and enhance contract review processes. Your work will directly contribute to the efficiency and accuracy of legal document analysis, benefiting our global clientele across various industries. https://www.legalontech.com/ ■Key Responsibilities - Develop GenAI Text-based Systems: Design and implement best practice GenAI text models for GenAI-based systems. - Implement GenAI NLP Algorithms: Develop and integrate NLP algorithms, especially focusing on generative models, for analyzing and interpreting complex textual data. - Collaboration: Work closely with data teams, software developers, and other engineers to integrate NLP capabilities into various applications and systems. - Data Analysis: Conduct statistical analysis of textual data to extract insights and improve model accuracy. - Prototype Development: Transform data science prototypes into scalable NLP solutions using generative AI. - Continuous Learning: Stay updated with the latest developments in NLP, machine learning, and generative AI.

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95 ■Job Description We are looking for a seasoned NLP Data Scientist with a specialty in legal data, geared towards product development and enhancement. Join our vibrant team at LegalOn, where you will play a pivotal role in transforming the landscape of legal technology. Your expertise in applying advanced generative AI and data science methodologies will be instrumental in evolving our product strategy and processes. You will work closely with executive leaders, Product Manager, ML engineer, and all other teams. As a key member of our team, you will be responsible for spearheading product design, implementation, and management, ensuring that our offerings remain at the cutting edge of technology. https://www.legalontech.com/ ■Key Responsibilities - Collaborate with legal teams, engineers, and product managers to integrate advanced NLP in legal document analysis and contract management. - Build legal data collection, processing, and integration pipelines for NLP model training and fine-tuning. - Develop NLP system evaluation methods, including manual annotation and authoritative legal content analysis. - Analyze legal text-related data often using advanced NLP tools. - Maintain data quality throughout the project lifecycle. - Analyze LLM model results to derive actionable insights for contract-related decisions. - Conduct experiments to assess LLM model performance and identify improvement areas. - Perform comprehensive evaluations of LLM models focusing on legal accuracy, fairness, compliance, and robustness. - Communicate effectively with internal stakeholders, presenting complex findings clearly and clearly. - Document work for audit and compliance and present findings to senior leadership.

We are a global legal AI company with advanced technological capabilities in AI and specialized knowledge in law and contracts. Since our founding in 2017, we have focused on developing legal AI services powered by artificial intelligence, raising a total of approximately ¥28.6 billion in funding, establishing a group company in the United States in 2022 to accelerate our global expansion, and continuing to grow at a remarkable pace. Currently, we offer our flagship product, "LegalOn: World Leading Legal AI," which has been released not only in Japan but also in the United States and United Kingdom. We are also boldly expanding into multiple new business areas, and in January 2025, we extended our business domain to cover all corporate functions with the release of AI Counsel "CorporateOn." Our products feature AI-powered capabilities including machine learning algorithms in natural language processing, large language models (LLMs), as well as our "Legal Document Graph" that systematically organizes accumulated information, and AI agents that autonomously plan and execute tasks. Furthermore, we have begun a strategic partnership with OpenAI, Inc., and as a leader in legal AI, we will continue to deliver advanced user experiences and sophisticated solutions. For more details about our company, products, and development organization: https://legalforce-recruit.notion.site/LegalOn-Technologies-3e114a8aecfb410a96424e34a0ed8bd6 【Key Responsibilities】 The Search and Recommendation group at LegalOn Technologies is responsible for a wide range of search, recommendation and agentic features in multiple rapid-growth services. LegalOn Technologies is a leading company of LegalTech in Japan, and Search and Recommendation is one of the most essential and mission-critical systems for our services. We are looking for a skilled Senior Software Engineer passionate about technology to design and implement various search/recommendation features and solve complex challenges to provide the best search experience to our customers. ■ What Mission and Challenges You’ll Take On - Collaborate with product managers to explore what exciting features we would deliver to our customers, make a practical plan about how the work should be done, and take responsibility for the delivery. - Mentor team members to help design software systems in sustainable/maintainable ways. ■ What You’ll Do - Design, build, and deliver a wide range of search, recommendation, and Agent features/APIs. - Identify performance and accuracy bottlenecks in LLM-powered applications and improve them, as well as implement functional extensions such as integration with search/recommendation features. - Proactively maintain and operate search and recommendation features/APIs. - Collaborate with team members and other teams to investigate performance and accuracy issues in search, recommendation, and Agent systems in production environments, establish quantitative evaluation metrics, and drive improvements. ■ Mindset - Proactively identify team and product challenges, take autonomous action toward solutions, and see them through to completion with full accountability - Share expertise generously to help maximize the overall output of the team - Collaborate effectively within and beyond the team, leading constructive discussions and sound decisions

LegalOn Technologies is a global leader in Legal AI for in-house legal teams, trusted by over 7,000 companies and firms worldwide. Our software helps legal teams review and negotiate contracts faster and more accurately. The company operates globally with businesses in Japan and the United States, and is backed by leading investors such as SoftBank Vision Fund and Goldman Sachs, with over $130M raised. ■Mission and Challenges - Establish and scale LegalOn's first ever global hiring engine across Japan, US, UK and new global locations to be added in APAC / EMEA - Increase companywide talent competitiveness for both tech and go-to-market roles globally - Driving global mobility by strategically navigating complex legal and visa frameworks ■Work Responsibilities - Work with leadership to define hiring strategy and source candidates with a particular focus on AI, Dev and Sales resources. - Full-cycle recruiting across multiple regions and time zones - - Source diverse talent pipelines via AI sourcing referrals events and agencies - Work together with hiring manager on providing candidates with the information required to select LegalOn, including support around decisions related to relocation for roles based in Japan - Leverage ATS workflows and dashboards to track funnel metrics - Lead employer branding campaigns to elevate global visibility - Train interviewers and mentor junior recruiters - Ensure compliance with labor laws and VISA qualifications in each country