We are seeking an experienced Senior QA Engineer to test and validate offline-first MERN stack applications deployed on Azure cloud environments with CI/CD pipelines. The ideal candidate will have solid expertise in manual and automation testing, with a focus on ensuring data integrity, synchronization accuracy, application reliability, and performance under intermittent connectivity conditions.

Key Responsibilities Functional & Integration Testing

Perform end-to-end testing of MERN stack applications (React, Node.js, MongoDB).
Validate frontend workflows, backend services, and API integrations.
Design, execute, and maintain test plans, test cases, and test scripts.
Ensure application functionality meets business and technical requirements.

Offline / Disconnected Testing

Test applications under low-connectivity and no-connectivity conditions.
Validate local data storage mechanisms such as IndexedDB and LocalStorage.
Verify synchronization processes, conflict resolution, and data merging scenarios.
Simulate real-world network conditions including latency, packet loss,



and intermittent connectivity.
Ensure eventual consistency and data reliability across systems.

Azure Cloud & CI/CD Testing

Work with Azure DevOps pipelines to integrate automated testing.
Validate application builds, deployments, and release processes.
Perform testing on Azure services including App Services, Functions, and APIs.
Ensure quality gates and testing standards within CI/CD pipelines.

Automation Testing

Develop and maintain automation frameworks and test suites.
Automate UI testing using Selenium, Cypress, or Playwright.
Automate API testing using Postman, RestAssured, or Supertest.
Integrate automated tests into CI/CD workflows.

Performance & Reliability Testing

Conduct load and performance testing during synchronization operations.
Validate system behavior during bulk data synchronization and offline data accumulation.
Utilize tools such as JMeter and k6 for performance testing.

📌 Senior QA Engineer (Mumbai)
🏢 Victrix
📍 Mumbai