QA Engineer (Frontend, Mobile, Java) - Trading

Own QA automation and testing for the Futures product, covering the full development lifecycle from requirements and test planning through execution, defect tracking, and ongoing maintenance. Collaborate with engineers, product managers, designers, and operations to improve test strategy and system implementation. Build and manage testing environments using Node.js, Java, Go, Python, and local blockchain; design robust test plans and run extensive black-box, white-box, security, automated, and performance testing across web, Windows, and mobile platforms.