Design, develop, and execute comprehensive unit test cases and test suites for application components written in Java, ReactJs, and Python.
Utilize and maintain testing frameworks specific to each component :
Java (Backend) : Write unit tests using JUnit / TestNG and use Mockito / PowerMock for mocking complex dependencies and external service calls.
Python (Backend/Scripts) : Write unit tests using PyTest / unittest and employ mocking libraries like unittest.mock.
ReactJs (Frontend) : Write unit tests for functional and class components using Jest and React Testing Library (RTL) to focus on user-centric behavior.
Implement techniques like test doubles (Mocks, Stubs, Spies) to ensure tests are isolated, deterministic, and fast.
Collaborate with developers to achieve high code coverage metrics without sacrificing test quality.
Quality Assurance & Engineering Practices
Advocate for and help implement Test-Driven Development (TDD) and clean code practices.
Participate in code reviews to ensure new features and bug fixes are accompanied by robust unit tests.
Integrate unit tests into the CI/CD pipeline (e.g., using Jenkins, GitLab CI, or GitHub Actions) to enable continuous testing on every code commit.
Contribute to the overall automation and testing strategy, focusing on shifting quality left in the Software Development Life Cycle (SDLC).
Qualifications
Strong Proficiency in Core Languages :
Java : Solid understanding of OOP, data structures, and experience with Java-based unit testing.
Python : Experience with Python for scripting and backend logic.
JavaScript/TypeScript (for React) : Strong skills in modern JavaScript (ES6+).
Testing Framework Expertise
Backend : JUnit/TestNG (Java), PyTest (Python), and mocking libraries like Mockito.
Frontend : Jest and React Testing Library (RTL) is highly preferred.
Tools & Methodologies
Experience with Git and modern version control systems.
Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI).
Knowledge of an issue-tracking system like Jira.
Understanding of code quality tools like SonarQube (or similar static analysis tools).
Bachelor's degree in Computer Science, Software Engineering, or a related field.
Minimum 3+ years of experience as an SDET, Automation Test Engineer, or a Software Engineer with a heavy focus on unit testing.
Proven ability to write clean, maintainable, and effective test code.
