(Sr.) QA Engineer

Accountabilities:: Perform system testing on new applications and existing software to verify that functionality meets design specifications and project requirements. Conduct regression testing following application updates and software enhancements to identify unintended impacts or defects. Design, write, execute, and maintain test cases for web applications and platform APIs. Maintain and manage manual and automated test scripts, as well as test databases. Review specifications, business and technical requirements, and design documents, providing timely and actionable feedback. Record test results, document defects, and follow up on reported issues in close collaboration with developers and other relevant engineers. Reproduce reported faults, verify defects, and provide supporting evidence to help technical teams investigate and resolve issues. Ensure deliverables meet customer expectations and quality requirements before being submitted for internal approval or release. Follow established team guidelines, testing procedures, and quality standards throughout the development process. Participate in development activities and contribute QA expertise throughout the software development lifecycle. Stay informed about emerging testing tools, frameworks, and strategies, identifying opportunities to improve quality assurance practices. Requirements: At least 5 years of professional Quality Assurance experience. Experience with different testing approaches, including application testing, system testing, and mobile testing. At least 1 year of blockchain testing experience is a strong advantage. Technical background with a good understanding of software development principles and web technologies. Knowledge of a range of testing methodologies, including functional, integration, regression, stress, and API testing. Hands-on experience with testing and debugging tools such as JMeter, Fiddler, Postman, Android Debug Bridge (ADB) Logcat, and Charles. Experience working in an Agile development environment, ideally within a Scrum team. Strong analytical skills and the ability to investigate, identify, and assess software defects and bugs. Excellent organizational skills, attention to detail, and the ability to manage multiple tasks effectively. Strong communication and teamwork skills, with the ability to collaborate across technical and product teams. Familiarity with mobile automation frameworks and tools such as Appium, Katalon, Espresso, or Xcode. Knowledge of Python, JavaScript, or other programming languages. Experience developing automated API tests. Familiarity with Android and iOS mobile platforms. Benefits: Full-time, remote position. Opportunity to work within a collaborative Agile Scrum team alongside Developers, Product Managers, and Project Managers. Exposure to web applications, platform APIs, mobile testing, and blockchain-related quality assurance. Opportunity to contribute to testing strategy, automation practices, and continuous quality improvement. Salary, healthcare coverage, paid leave, bonuses, equipment provision, and other employee benefits are not specified in the job description.