About the Role We need a QA engineer for a large, established enterprise web application. The system has many interconnected modules and limited documentation, so a big part of the job is building your own understanding of how things work by exploring the application and the database. This is a hands-on manual testing role with a strong investigation component. When something breaks, we expect you to dig in and tell us where the problem actually is: the application code, the SQL, or the data itself. Responsibilities - Manual functional, regression, and exploratory testing across the application. - Learn the system by exploring it. Map out how modules and workflows connect, and document what you find. - Investigate defects to the root cause. Reproduce the issue, check the relevant tables, read the queries or stored procedures involved, and determine whether it is a code issue, a query issue, or a data issue. - Write clear bug reports with reproduction steps, evidence (screenshots, query results), and your root-cause analysis. - Work directly with the client. Ask clarifying questions when expected behavior is unclear, confirm assumptions before testing, and report findings in plain language. - Plan your own work. Identify high-risk areas, decide what to test, and flag risks without waiting to be assigned tasks. Requirements - 3+ years of manual QA experience on complex, data-heavy business applications. - Solid SQL. Comfortable writing SELECTs with joins, reading existing queries and stored procedures, and inspecting tables to verify how data is populated. - Experience working on systems with little or no documentation. - Strong root-cause analysis. You don't stop at "it's broken" — you find out why, with evidence. - Clear written and spoken English. Able to explain technical issues to developers and non-technical stakeholders. - Independent and self-directed. Comfortable working with minimal supervision and across time zones. Nice to Have - Experience testing legacy applications (Classic ASP, older .NET) or systems under modernization. - SQL Server experience (stored procedures, views). - Jira / Azure DevOps or similar. - Basic web debugging skills (browser dev tools, HTTP, sessions). - Prior experience working directly with international clients.