Top QA Engineer Jobs in Osaka

Lead independent QA/QC oversight for hyperscale data centre construction in Hong Kong. Conduct site inspections, manage NCRs and punch-lists, verify MEP installations and commissioning readiness, ensure regulatory compliance with HK codes, review quality documentation, report findings to the client, and support close-out and handover activities.

Lead QA strategy and execution across web and mobile product suites: define test plans, drive automation, oversee release readiness, track quality metrics, mentor QA team, and partner with Product, Engineering, DevOps, and Security to ensure reliability, performance, and security.

Design, build, and maintain automated test suites for smart contracts and UI; integrate testing into development; identify, document, and track bugs; improve automation frameworks; analyze results and ensure comprehensive coverage for new features.

Lead quality management and oversight for Japan, ensuring compliance with regulations, managing quality risks, and collaborating with marketing and safety roles.

Responsible for maintaining and improving product quality in manufacturing, leading quality control efforts, handling customer complaints, and collaborating cross-functionally on quality projects.

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.

As a Quality Assurance professional, you will analyze product issues, create reports, explain root causes to customers, conduct investigations, and ensure compliance with regulations.

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 backend QA efforts across the SDLC: design and execute test plans and automation, validate APIs, databases and distributed services, track defects, and improve test strategy to reduce manual effort.

Lead backend QA for a Web3 wallet: design and execute automated tests, investigate and reproduce backend issues, perform root-cause analysis, and test unreleased features through full test-cycle automation and some manual validation.

Design, develop, and maintain Java/Rust automated test frameworks for margin trading and risk systems. Plan and execute test strategies, manage test environments, perform functional, security, and performance testing, debug high-concurrency distributed systems, and collaborate with engineers and product teams to improve product quality.

Lead QA automation for Futures across web, desktop, and mobile: design and execute test plans, set up test environments, write automated tests, perform security and performance testing, root-cause analysis, and improve testing processes across the SDLC.

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.

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.

Design and implement automated tests, perform manual backend investigations, reproduce and track defects, conduct root-cause analysis, document test scenarios, expand scripted coverage, and improve QA processes while collaborating with developers, product managers, and stakeholders.

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.

Senior QA Automation Engineer responsible for designing, building, and maintaining Rust/Java-based automated test frameworks. Participate across the SDLC to create test plans, execute black-/white-box, security, performance, and mobile testing, diagnose root causes, and improve testing processes. Collaborate with engineers, PMs, designers, and operations to ensure system reliability across web, desktop, and mobile platforms. Apply AI models in testing where applicable and coordinate with global stakeholders in English and Mandarin.

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 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.

Responsible for functional and API testing of platform products, designing and executing end-to-end tests across frontend, backend, strategy, and algorithms. Validate personalized user experiences, improve test coverage and QA processes, and drive adoption of AI-assisted test generation and automation. Collaborate with Product, Engineering, Algorithm, and Strategy teams to identify issues and ensure quality.

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

As a Senior QA Engineer, you will develop automated testing strategies for a decentralized trading platform, focusing on E2E and API testing, while validating execution paths and collaborating across teams.

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.