Top QA Engineer Jobs in Japan

Join Micron as a Semiconductor Engineer to improve production processes and workflows in a team-focused, supportive environment. No prior experience needed.

Performs GMP quality assurance activities for sterile injectable medicines at Takeda’s Osaka site. Responsibilities include AQL visual sampling inspections of syringes and vials, verifying packaging formats and labeling information, and reviewing manufacturing and testing records. The role requires native-level Japanese, careful adherence to procedures, attention to detail, basic Word and Excel skills, and high school education or higher. Prior pharmaceutical, cosmetics, or food testing, inspection, or packaging experience is welcomed, but training is provided for inexperienced candidates.

Perform GMP quality assurance for sterile injectable medicines at Takeda’s Osaka manufacturing site. Responsibilities include investigating deviations, reviewing manufacturing records, inspecting manufacturing and testing areas, administering manufacturing and testing equipment systems, preparing product release decisions, and leading continuous improvement activities. The role requires native-level Japanese, pharmaceutical GMP experience, and a relevant scientific or engineering degree.

Leads regional and local quality functions, process improvement, quality planning, metrics, statistical process controls, and internal audits. Uses root cause analysis and CAPA to resolve nonconformances and improve business performance. Develops process maps, mentors and cross-trains staff, supports accreditation and regulatory compliance, and facilitates improvement teams. Requires detailed knowledge of quality systems, auditing, ISO standards, Lean Six Sigma, and business-level Japanese and English proficiency.

Performs manufacturing quality assurance and quality control, including in-process, receiving, and shipping inspections; nonconformity and root-cause analysis; MRB/DRB activities; process audits; KPI management; customer complaint resolution; 8D corrective actions; QMS/ISO maintenance; SPC implementation; measurement-system management; and quality improvement projects. The role collaborates with manufacturing, customers, Sales, and international teams and is based onsite in Ami Town, Japan.

Design and execute comprehensive test plans for dApps and smart contracts, perform unit/integration/end-to-end testing, run security audits and vulnerability assessments, automate tests within CI/CD pipelines, monitor quality metrics, debug issues, and collaborate with developers and product managers to ensure reliable DeFi/EVM-compatible applications.

Leads quality assurance and Japanese QMS compliance for medical devices. Responsibilities include maintaining SOPs and certifications, coordinating audits and inspections, overseeing foreign manufacturers, managing inspections, product release, labeling, complaints, nonconformances, CAPAs, recalls, and quality records. Supervises QA staff, supports management reviews, communicates with Japanese regulatory authorities, and drives continuous improvement.

Designs, executes, and maintains automated tests for mobile, web, and API applications. Responsibilities include creating test scenarios, cases, scripts, and data; executing manual and automated tests; analyzing defects and results; improving automation frameworks and testing processes; and collaborating with engineering, design, and QA teams. The role also uses AI-assisted development tools to improve test design, debugging, documentation, and productivity.

Lead weekly functional and non-functional release testing, roadmap project QA, test planning, scope definition, test execution, defect triage, reporting, and test case management. Collaborate with QA engineers, developers, designers, vendors, and affiliated teams to ensure product quality. Maintain master test cases, prepare test data and environments, review test cases, and improve QA processes for mobile securities services.

Designs and maintains automated testing frameworks for margin trading and risk systems using Java and/or Rust. Responsibilities include test planning, environment management, black-box and white-box testing, security and performance testing, defect analysis, and validation of complex trading workflows, margin calculations, liquidation processes, and high-concurrency distributed systems.

Lead and perform GCP audits of investigator sites, suppliers, and partners across Japan and APAC; develop risk-based audit plans; prepare audit reports and manage CAPA follow-up; support QA governance, training, QA tools and global consistency; mentor junior QA staff and act as QA liaison for Japanese development and PMDA inspections.

Develop and maintain backend integration testing for unreleased features and changes. Responsibilities include designing manual and automated test scenarios, writing Python and other scripting tests, investigating defects, maintaining test environments and artifacts, improving automation and reporting frameworks, and building tools for RESTful API testing. The role requires strong backend QA experience, UNIX/Linux proficiency, and testing expertise across APIs, databases, and distributed services.

Designs and executes manual and automated tests for backend systems, APIs, databases, microservices, and distributed services. Develops test plans, automation scripts, data comparison tools, and QA frameworks; investigates defects and performs root cause analysis. Conducts performance, security, scalability, and big data testing while improving test coverage, release processes, and product quality. Collaborates with engineering, product, support, and external partners in an Agile environment.

Leads quality assurance and quality control across large-scale construction, infrastructure, industrial, manufacturing, pharmaceutical, semiconductor, or data center projects. Develops quality strategies, project quality plans, QMS processes, inspection and testing programs, audits, compliance assessments, and KPI reporting. Oversees NCRs, corrective actions, risk mitigation, client audits, regulatory compliance, and continuous improvement while managing and developing QA/QC teams.

The Head of Business Operations for Safety and Quality at Woven by Toyota drives strategy, governance, and transformation initiatives, ensuring operational excellence and risk management across the Safety & Quality organization while engaging with stakeholders globally.

Maintain and improve supplier quality for diagnostic components. Responsibilities include handling internal defect reports, registering defects in systems, communicating with suppliers, investigating root causes, implementing corrective actions, and managing supplier 5M changes. Future duties include supplier quality assessments, onsite audits, and process checks for new or changed suppliers. The role requires technical drawing literacy, PC skills, fluent Japanese, basic English reading, collaboration, problem-solving, and domestic and international travel.

QA Engineers will support quality assurance activities for GMS products and solutions while contributing to innovation and product development. The description provides no specific responsibilities, qualifications, technologies, location, salary, travel, or clearance details.

QA Engineers will support quality assurance activities for GMS products and solutions. The provided description contains limited role-specific details and does not list particular testing responsibilities, technologies, qualifications, compensation, travel, or clearance requirements.

Internship QA Engineer supporting Binance’s compliance and digital finance products. Responsibilities include understanding business and technical scenarios, designing and reviewing test cases, executing functional and regression testing, tracking defects, and developing automation scripts. Requires hands-on Java coding, MySQL familiarity, QA methodology knowledge, analytical and troubleshooting skills, communication, and a five-day-per-week commitment.

Participate in Android and iOS app testing, including functional and regression testing. Design, execute, and review test cases; identify, track, and verify bug fixes; and collaborate with developers and product managers to resolve issues. Use AI tools to improve testing efficiency and coverage. This is a six-month, full-time early-career program requiring five days per week.

Own quality strategy and release readiness for assigned product areas in Dialpad’s AI communications platform. Responsibilities include functional, integration, regression, exploratory, UI, API, and end-to-end testing; maintaining automated test suites; validating enterprise workflows and AI capabilities; investigating failures; reporting defects; performing root-cause analysis; and collaborating with Japanese, APAC, and global stakeholders to improve quality and release confidence.

Conduct functional, performance, security, and automation testing for blockchain products and DApps. Participate in requirements and architecture reviews, build automation test cases and tools, design performance and stability tests (including chaos engineering), and establish blockchain testing frameworks. Include browser testing for blockchain-enabled browsers.

The QA Specialist ensures linguistic and technical quality of English subtitles from Japanese content, collaborating with teams and managing translators to uphold standards and resolve issues.

The Quality Assurance Architect will develop and manage QA strategies, oversee testing frameworks, mentor teams, and ensure quality governance for robotics systems across agile teams.

Execute functional, regression, compatibility, and event-tracking tests across Android, iOS, Web, and Admin platforms. Prepare test data, reproduce production issues, document clear bug reports, verify fixes through closure, and maintain test case documentation. The role involves using existing QA tools, scripts, spreadsheets, and online test platforms within a mature testing process.