Software Engineer (AI Company)

Job Posting Software Engineer Location: Tokyo, Japan (Hybrid) Employment Type: Full-time Salary JPY 6,000,000 - 12,000,000 annuallyBonus twice yearlyStock option programSalary review twice yearly About The Role An innovative AI technology company is seeking a Software Engineer to join its QA team. This role focuses on improving software quality through intelligent automation, AI-powered testing, and continuous quality improvement. You'll work on expanding automated testing, improving test reliability, designing scalable QA processes, and building AI-assisted testing solutions used across multiple enterprise products. Responsibilities Develop automated testing solutions for manual testing processesBuild AI/LLM-powered test automation toolsImprove automated test quality and coverageDesign and manage the full test case lifecycleIntegrate automated testing into CI/CD pipelinesIdentify and resolve flaky testsEstablish QA standards and testing best practicesCollaborate with Engineering, Product, Customer Success, and Business teamsDrive continuous improvements to product quality Requirements 3+ years of software engineering experience1+ year of TypeScript developmentExperience with AI-assisted development or test automationExperience in software testing and QAStrong communication skills across technical and business teamsFluent Japanese Preferred Experience Full-stack developmentPlaywright, Cypress, Jest, or VitestGitHub Actions or CI/CD pipelinesLLM or AI Agent developmentCloud platforms (AWS, GCP, Azure)English communication Tech Stack TypeScriptPythonReactNext.jsBigQueryDockerKubernetesTerraformGitHub ActionsLangSmithPandas Benefits Hybrid work arrangementModern AI-assisted development environmentOpportunity to build AI-powered QA systemsHigh-impact work on enterprise-scale productsCollaborative engineering cultureCareer growth in AI and software engineering Hiring Process Document Screening → One Interview