English の求人一覧 - 株式会社LegalOn Technologies

We are a legal AI company that combines deep legal expertise with advanced capabilities in artificial intelligence. Since our founding in 2017, we have focused on developing AI-powered LegalTech solutions, raising over ¥17.9 billion in funding to date. In 2022, we established a U.S. subsidiary to accelerate our international expansion, continuing to grow at a remarkable pace. Our flagship product is “LegalOn Cloud,” an AI-powered legal operations platform that comprehensively supports in-house legal teams across a wide range of workflows. Internationally, we have launched “LegalOn Global,” our AI contract review service, in both the U.S. and U.K. markets. In addition, we are actively exploring new business domains. In 2025, we released “AI Counsel CorporateOn,” a generative AI solution purpose-built for corporate teams, enabling one-click access to internal policies and company-wide legal insights. Our products leverage advanced natural language processing technologies, including machine learning algorithms and large language models (LLMs). We also incorporate proprietary innovations such as our “Legal Document Graph”—a structured knowledge base of legal content—and autonomous AI agents that can plan and execute tasks. These capabilities enable us to deliver cutting-edge user experiences and highly 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

At LegalOn Technologies, our mission is to "create a society where people can move forward with confidence through the power of law and technology." As a technology-driven company, we develop and deliver cutting-edge AI-powered solutions across various business domains. Since our founding in 2017, we have experienced rapid growth—launching our AI contract review service LegalForce, raising approximately JPY 17.9 billion in funding, and expanding globally with the establishment of our U.S. subsidiary in 2022. Our flagship product, LegalOn Cloud, is an AI-powered legal platform that supports end-to-end legal operations, including case intake, contract review, electronic signing, post-execution management, and broader legal inquiries. On the global front, we offer LegalOn Global, an AI-driven contract review service available in both the U.S. and the U.K. In 2025, we further expanded our product portfolio with AI Counsel CorporateOn, a generative AI solution designed to streamline corporate functions such as HR, legal, finance, and tax operations. By harnessing the power of law and technology, we aim to address challenges across diverse business domains and create a world where people can move forward with confidence. For more information about our company, products, and development team, please visit: https://www.notion.so/legalforce-recruit/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95 【About This Position】 To strengthen our corporate IT infrastructure, LegalOn Technologies is seeking a Global Corporate IT Leader to drive IT strategy from a global perspective. This role will be responsible for designing and executing IT initiatives across both our headquarters in Japan and our U.S. subsidiary. The successful candidate will play a key role in our mission to achieve our goal of becoming the No.1 LegalTech company globally, by driving employee productivity and cost efficiency, while supporting sustainable growth and long-term profitability. 【Responsibilities】 ■IT Strategy Development & Execution 　- Develop and implement mid‐to long‐term IT strategies aligned with overall business plans. 　- Create and execute annual IT operational plans that support company objectives. 　- Leverage emerging technologies, including Generative AI, to enhance organizational efficiency. ■Organizational Management 　- Structure and lead the Corporate IT team to effectively achieve company-wide goals. 　- Plan and execute recruitment strategies to build a high-performing team. 　- Manage IT budget planning and ensure cost-effective operations. ■People Management. 　- Build and foster a strong team culture while maintaining high levels of motivation. 　- Assess and manage individual and team performance through regular feedback and evaluation. 　- Support the continuous skill development and career growth of team members. 【Team Structure】 The Corporate IT Team spans both our Japan headquarters and our U.S. subsidiary: - Japan Headquarters: 　- 1 full-time team leader 　- 6 full-time team members - U.S. Subsidiary: 　- 1 full-time team member The Global Corporate IT Leader will oversee and strengthen this team to ensure smooth and efficient IT operations across both regions. This includes optimizing collaboration between the Japan and U.S. teams, driving alignment with IT strategy, and fostering a high-performance team environment.

LegalOn Technologies is the world's leading AI contract review software provider, used by innovative lawyers and legal professionals at 7,000 companies and firms globally. Customers report significant improvements in review speed and quality. 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.

LegalOn Technologies is the world's leading AI contract review software provider, used by innovative lawyers and legal professionals at 7,000 companies and firms globally. Customers report significant improvements in review speed and quality. 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.

LegalOn Technologies is the world's leading AI contract review software provider, used by innovative lawyers and legal professionals at 7,000 companies and firms globally. Customers report significant improvements in review speed and quality. 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.