Top QA Engineer Jobs in Osaka

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.

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.

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.

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.

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.

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.

Lead end-to-end QA for Fiat/BigPay: plan tests, design and execute cases across App/Web/Backend/Admin, maintain Python pytest+k6 automation framework, drive feature and edge-case testing, and collaborate cross-functionally to close quality loops.

Lead root-cause analysis for transformer product issues, prepare investigation reports, explain findings to customers, and perform or support on-site inspections. Execute other QA tasks and ensure compliance with internal and external regulations.

3-6 month internship testing and delivering high-quality products. Design and review test cases, execute functional and regression tests, identify and track bugs, and collaborate with engineering teams to ensure timely delivery.

Test and ensure quality of Binance Wallet across mobile, browser extension and APIs. Create and execute test cases, estimate and prioritize testing, and contribute to automated and manual test development while collaborating with engineers and product.

Early-career QA tooling developer to design and build internal tooling and testing systems, maintain cloud infrastructure and test environments, support engineering teams with configuration management and troubleshooting, and improve development and release cycle efficiency during a 6-month accelerator placement.

Perform functional and regression testing, design and review test cases, execute tests, identify and track bugs, collaborate with team to ensure timely, high-quality product delivery.

Participate in QA for Binance products: design and review test cases, execute functional and regression tests, identify and track bugs, and collaborate with teams to ensure timely delivery and product quality during a fixed-term accelerator program.

Early-career QA role within Binance Accelerator Program. Design and execute functional and regression tests, develop and review test cases, identify and track bugs, and collaborate with engineers to ensure timely, high-quality product delivery. Requires commitment of at least six months and minimum three days per week.

Lead and maintain GQP/QMS for pharma/medical device products: manage quality agreements, audits, change/deviation/complaint handling, recalls, SOPs, trainings, product master formulas, QMS records, support product introductions and site transfers, and supervise group-level budget and personnel.

The role involves manual and automation testing, guiding teammates, solving client challenges, and using various automation tools and scripting languages.

Join Binance Accelerator Program as a QA Automation intern to design and execute functional, regression, and automated tests. Develop test cases, review test plans, identify and track bugs, and build automation scripts to increase testing efficiency while collaborating closely with engineering teams to ensure timely, high-quality deliveries.

Support the Aprimo platform by gathering and documenting business requirements, writing user stories and acceptance criteria, and assisting configuration. Develop and execute test plans (functional, regression, UAT), track defects in ticketing tools, validate post-change performance, and collaborate with stakeholders and senior configurator to ensure timely resolution and high-quality delivery.

Oversee QA and QC activities for manufacturing and testing of power transformers for the Japanese utility market at overseas factories. Lead and instruct the TR JP2408 quality control team, troubleshoot legacy and new products, and manage HSE responsibilities in coordination with HE-J and HUB APMEA.