Quality Assurance Engineer

Description :

Job Title : Full Stack API QA Engineer

Function : Quality Assurance / API Automation

Total Experience : 5 Years

Relevant Experience : 3 -06 Years

Location : Bangalore / Hyderabad / Kolkata / Kochi

Role Summary

We are seeking a highly skilled Full Stack API QA Engineer with a minimum of 3 - 6 years of relevant experience to specialize in testing, validating, and ensuring the quality and reliability of complex REST APIs and associated backend microservices.

The ideal candidate must be proficient in designing and implementing robust API automation frameworks in a continuous integration/continuous delivery (CI/CD) pipeline within a cloud-native environment.

This role demands deep technical expertise in test script development, system integration testing, and fundamental knowledge of cloud architecture.

Key Responsibilities (Inferred and Elaborated)

API Test Automation Development :

- Design, develop, and maintain comprehensive, reusable automation test frameworks and scripts primarily focused on API testing using industry-standard tools and programming languages (e.g., Postman, Rest-Assured, Python/Java).

- Implement and manage automation suites for functional validation, system integration testing (SIT), regression testing, and contract testing of all RESTful and GraphQL APIs.

- Integrate automation test suites seamlessly into the continuous integration/continuous delivery (CI/CD) pipeline (e.g., Jenkins, GitLab) to support frequent and rapid deployments.

Functional & Integration Testing :

- Analyze detailed API specifications (e.g., Swagger/OpenAPI documentation) and technical requirements to design meticulous test scenarios and cases covering all positive, negative, and edge conditions.

- Validate data integrity and end-to-end transaction flows by querying and verifying data in backend SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) used by the microservices.

- Perform deep-dive analysis and validation of request/response payloads (JSON/XML), HTTP status codes, authentication mechanisms (e.g., OAuth 2.0, JWT), and header validations.

Technical Quality & Troubleshooting :

- Execute system health checks, perform advanced API-level troubleshooting, and log detailed, technically accurate bug reports to the development teams.

- Utilize distributed tracing and logging tools (e.g., ELK stack, Prometheus) to monitor API performance and diagnose defects in the cloud-native environment.

- Implement and review security testing best practices at the API layer, including input sanitization and authorization checks.

Cloud & Performance Readiness :

- Apply basic knowledge of cloud infrastructure (AWS/Azure/GCP) to understand deployment environments, networking basics, and potential scaling issues affecting APIs.

- (Optional) Plan, develop, and execute high-volume performance and load testing using tools like JMeter or equivalent solutions (e.g., Gatling, k6) to identify API bottlenecks.

Mandatory Skills (Inferred and Elaborated)

API Testing Tools : Expert-level proficiency with dedicated API testing tools such as Postman, SoapUI, or Insomnia.

Automation Frameworks : Strong hands-on experience in designing and building robust API automation frameworks using libraries like Rest-Assured (Java) or the Requests library (Python).

Programming : Proficiency in at least one object-oriented programming language relevant for automation (Java, Python, or JavaScript/TypeScript).

REST/GraphQL : In-depth understanding of RESTful API architecture, HTTP protocols, status codes, and security mechanisms (OAuth, API Keys).

CI/CD Integration : Practical experience integrating automation suites with CI/CD tools (Jenkins, GitLab CI, or Azure DevOps).

Databases : Working knowledge of SQL for data validation in relational databases and familiarity with querying NoSQL structures.

Secondary Skills (Optional)

- Performance Testing : Experience with performance testing toolkits such as JMeter, Gatling, or LoadRunner for comprehensive load and stress testing of APIs.

- Cloud Basics : Foundational knowledge of public cloud platforms (AWS, Azure, or GCP) and containerization concepts (Docker/Kubernetes).

- Security Testing : Familiarity with common API security vulnerabilities and tools like Burp Suite or OWASP ZAP.

- Message Queues : Experience with messaging platforms like Kafka or RabbitMQ for testing event-driven architectures.