Senior Quality Engineer

Summary: We are looking for a Senior Quality Engineer who does more than execute test cases, someone who owns quality end-to-end. You will design the testing strategy, build and maintain automated suites using Playwright on a .NET stack, and take an active role in diagnosing root causes and recommending the most effective path to resolution. You will work closely with developers, product managers, and architects to embed quality at every stage of the delivery lifecycle.


Required Qualifications

• 5+ years of software quality engineering experience in enterprise environments
• Strong hands-on experience with Playwright for end-to-end and cross-browser automation
• Proficiency writing test code in C# within .NET (NUnit, xUnit, or MSTest)
• Demonstrated ability to build and own a QA strategy from scratch, not just follow one
• Experience with CI/CD pipelines and integrating automated tests into build workflows
• Solid understanding of RESTful APIs and ability to perform API-level testing
• Strong analytical skills to diagnose defects at the system level and guide resolution
• Experience with Agile/Scrum methodologies and sprint-based delivery

Preferred Qualifications

• Experience with Azure DevOps or GitHub Actions for pipeline automation
• Familiarity with SQL for data validation and backend testing
• Knowledge of performance testing tools such as k6, JMeter, or similar
• Experience with Docker or containerized test environments
• ISTQB certification or equivalent formal QA training

Core Responsibilities

Test Planning & Strategy


• Define test plans, risk matrices, and coverage strategies for new features and releases


• Establish QA standards, guidelines, and best practices across the team


• Partner with product and engineering to identify testability gaps early


• Own end-to-end release quality sign-off process


Test Execution & Automation


• Author and maintain automated UI, integration, and regression tests using Playwright


• Write clean, maintainable test code in C# within .NET test frameworks


• Integrate automated suites into CI/CD pipelines (Azure DevOps, GitHub Actions)


• Perform exploratory, functional, and performance testing as needed

Defect Analysis & Resolution Guidance


• Lead root cause analysis for complex or recurring defects


• Recommend and document the best fix approach not just report the bug


• Collaborate with developers to validate fixes and prevent regression


• Maintain a defect classification and prioritization framework


Continuous Improvement


• Track quality metrics: defect escape rate, test coverage, and flake rate


• Drive process improvements through retrospectives and data


• Mentor junior QA team members on strategy and automation


• Evaluate and adopt new testing tools and frameworks

Key Skills at a Glance


Primary language


C# / .NET


Automation framework


Playwright


Test frameworks


NUnit / xUnit


CI/CD


Azure DevOps / GH Actions


API testing


REST / Postman


Methodology


Agile / Scrum


Soft skill


Fix recommendation


Leadership


Strategy ownership