Monday, October 27, 2025
G Talent

【Legal Tech Unicorn company/Hybrid work 】Senior fullstack engineer

Posted: Oct 16, 2025

Job Description

★Senior Full Stack Engineer [TypeScript、Go] | Legal-tech CompanyBusiness Level Japanese REQUIRED✦Flextime system & Hybrid Work✦Own Products/Services✦Famous Venture Company✦Side-job Allowed★Annual salary: 9.5 million yen - 14 million yen-------------【About the company】-------------The company's mission is to "make all contract risks controllable.To achieve this, the company is currently developing the following businesses【Business Description】(1) Development and operation of AI contract review platform "LegalForce"(2) Development and operation of AI contract management system "LegalForce Cabine"(3) Operation of "Contract Watch," a contract-related information mediaThe company's economic activities consist of a variety of contracts, large and small, entered into by consumers and businesses.At the same time, this means that "contract risks such as unfavorable terms and conditions and violations of laws and regulations are latent.The company combines the latest technology with legal expertise to make contract risks visible and controllable.To ensure that rights are properly protected and unforeseen events are prevented.And to create a more prosperous and trusting economic society.-------------【 Job Description】-------------In this position, you will serve as a full-stack engineer for AI Counsel CorporateOn, working with the Product Manager to contribute to the delivery of products with both quality and productivity. You will be responsible for technical decision making, architecture design, implementation, operation and maintenance of LLM functionality, and team productivity.■Mission/IssueAs a Full Stack Engineer at AI Counsel CorporateOn, you will work with the Product Manager to ensure the delivery of products that combine business goals with appropriate quality of service.■Responsibilities- Making technical decisions as a development team and negotiating with people outside the team- Domain modeling and data modeling for the future of the product- Architectural design that balances quality and productivity- Design, implementation, review, testing, operation and maintenance of functions using LLM- Develop various automations and processes to improve team productivity and product quality, and write documentation- Mentoring and coaching team members as needed-------------【 Requirements】-------------■Required・5+ years of hands-on experience in web system development or equivalent experience・Frontend development experience using TypeScript・Backend development experience・Experience designing and building cloud infrastructure using AWS, GCP, or Azure・Proven experience in improving code quality and team productivity・Experience setting up CI/CD pipelines using GitHub Actions, CircleCI, or Jenkins・Agile development experience・Japanese language proficiency equivalent to JLPT N1■Preferred・Web development experience using Go・Practical experience in machine learning or natural language processing・Experience in data collection and visualization for decision-making・Ability to write maintainable, high-quality code・Ability to write robust code with effective error handling--------------------------------------------------【Working Time 】Flextime System【 Welfare 】・Full social insurance・Commuting allowance・Stock Option・Subsidy for meal, water server・Subsidy for language learning・Subsidy for purchasing technical books・Subsidy for influenza vaccination・No smoking indoors (smoking room available in the building)・Various in-house clubs available・Lawyers' association fee subsidy (40,000 yen per month)・Second job allowed (permission required)【 Holiday 】2 days a week (Saturday and Sunday)Annual Paid LeaveNew Year HolidayParental LeaveNursing Care LeaveCongratulations & Condolence LeaveOthers-------------------------------------------------------------------------

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