Senior QA Engineer

4 weeks ago

Johannesburg, South Africa Level-Up Full time

The Senior QA Engineer drives quality excellence by architecting and executing comprehensive testing strategies across the full software development lifecycle. This role ensures .NET Core, React, and Azure-based solutions achieve superior standards in reliability, performance, and security through strategic test planning, automation development, and continuous integration practices. Working at the intersection of development, operations, and product teams, the Senior QA Engineer champions quality-first principles, embeds testing into CI/CD workflows, and fosters a culture of proactive quality assurance and measurable improvement. Core Responsibilities Test Strategy & Architecture Architect comprehensive test strategies, plans, and case libraries for web applications, APIs, and system integrations Build and maintain scalable automation frameworks supporting regression, smoke, and integration testing Apply risk-based methodologies to focus testing efforts on high-impact business functions Test Automation Engineering Engineer automated UI test suites for React applications using Selenium, Playwright, or Cypress Develop API automation for .NET backend services leveraging Postman, RestAssured, or Newman Embed automated testing into Azure DevOps, Jenkins, or GitHub Actions CI/CD pipelines Create maintainable, reusable test libraries using JavaScript/TypeScript or Python Integration & Quality Validation Execute end-to-end, regression, and exploratory testing across web and API ecosystems. Validate integration points between APIs, front-end components, and Azure SQL databases. Ensure data integrity and transaction flow across microservices and Azure cloud infrastructure. Test Infrastructure & Continuous Quality Provision and maintain test environments within Azure cloud infrastructure. Drive continuous testing practices synchronized with CI/CD deployment cycles. Partner with development teams to design test data strategies, create mock services, and resolve quality issues. Cross-Functional Collaboration & Insights Align test coverage strategies with Developers, DevOps engineers, and product owners. Manage test artifacts and defect workflows through Jira, Azure DevOps, or TestRail. Deliver actionable quality metrics, visual dashboards, and root cause analyses to drive continuous improvement. Technical Capabilities Domain Technologies Test Automation Selenium, WebDriver, TestNG, NUnit, JUnit, Cucumber API Testing Postman, Swagger, RestAssured, Newman Programming JavaScript/TypeScript, Python, SQL Cloud & CI/CD Azure DevOps, GitHub Actions, Jenkins, Azure Test Plans Performance Testing JMeter, K6, Azure Load Testing Test Management Jira, Azure DevOps, TestRail Database Testing Azure SQL, PostgreSQL, SQL Server Version Control Git, Azure Repos Methodologies Agile/Scrum, BDD/TDD, DevOps Integration #J-18808-Ljbffr

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