(Sr.) QA Engineer

The (Sr.) QA Engineer will play an important role in ensuring the quality, reliability, and performance of web applications, software platforms, and APIs. Working as part of an Agile Scrum team, you will collaborate closely with Developers, Product Managers, and Project Managers throughout the software development lifecycle. You will design, execute, and maintain test cases, identify defects, and help prevent regressions as applications evolve. The role combines hands-on manual testing with opportunities to contribute to automation and improve testing practices. You will also provide feedback on technical specifications and requirements, helping teams identify potential issues early. This is an opportunity to bring strong QA expertise to a collaborative, technology-focused environment, with exposure to blockchain-related testing.

• 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.

• 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.