Sr software Tester

Job Role: Sr software Tester
Location: Plano, TX/ Onsite

Only W2
Visa: EAD, L2S, and TN visa

About the Role
Looking for a seasoned Senior Software Tester to join our Quality Engineering team. You will own end-to-end test strategy across multiple product lines, ensuring every release meets the highest bar for quality, reliability, and performance. You will work closely with developers, product managers, and business analysts throughout the full SDLC from requirements review to post-release validation.

Key Responsibilities
Design, write, and execute detailed test plans, test cases, and test scripts for functional, integration, regression, system, and performance testing.
Participate actively in Agile ceremonies (sprint planning, standups, retrospectives) and contribute to sprint quality goals.
Perform manual testing across web and desktop applications built on the .NET Framework, ensuring coverage of all business-critical workflows.
Collaborate with developers to define acceptance criteria, identify edge cases early, and reduce defect escape rates.
Write and maintain SQL queries (Microsoft SQL Server) to validate data integrity, test backend logic, and support root-cause analysis.
Lead regression test cycles and manage test suites to keep up with iterative development.
Execute performance and load testing; analyze results and report findings with actionable recommendations.
Track, document, and follow up on defects using issue-tracking tools; ensure timely closure and proper re-test.
Mentor junior QA team members on best practices, test design techniques, and SDLC processes.
Contribute to continuous improvement of QA processes, standards, and tooling.

Requirements
5+ years of hands-on software testing experience in professional environments.
Strong background in manual testing functional, integration, regression, system, and performance testing.
Solid experience testing applications on the .NET Framework.
Proficiency in writing SQL queries with Microsoft SQL Server for data validation and troubleshooting.
Proven experience working within Agile/Scrum delivery teams.
Strong ability to author clear, reusable, and thorough test plans and test cases from functional specifications.
Excellent analytical and problem-solving skills with a keen eye for detail.
Clear written and verbal communication skills for defect reporting and stakeholder updates.
Experience with defect lifecycle management and issue-tracking tools (e.g. Jira, Azure DevOps).