QA Engineer (API Automation) • Mumbai

Mintoak Innovations Private Limited; Mumbai; On-site; INR 600,000 - 1,000,000; Full time

Job summary

Mintoak Innovations Private Limited in Mumbai is looking for a skilled API Tester to design, develop, and execute test cases for API functionality, regression, and integration. The ideal candidate should have strong experience in Postman and Rest Assured, along with a sound understanding of REST APIs and automation frameworks.

This role requires teamwork, analytical skills, and the ability to maintain quality under pressure. A BSc or Diploma in Computer Science or relevant field is essential.

Qualifications

• Strong hands-on experience with Postman and Rest Assured.
• Good understanding of REST APIs and JSON/XML.
• Experience in Java-based automation frameworks.

Responsibilities

• Design, develop, and execute API test cases.
• Build and maintain API automation frameworks.
• Perform API validation using Postman.

Skills

Postman

Rest Assured

REST APIs

Java-based automation

JIRA

Git

Jenkins

Basic SQL/database knowledge

Education

BSc degree/Diploma in Computer Science or relevant field

Job description

Responsibilities

• Design, develop, and execute API test cases for functional, regression, and integration testing.
• Build and maintain API automation frameworks using Rest Assured.
• Perform API validation using Postman, including request/response validation, authorization, and environment management.
• Validate business logic, response structure, database mappings, and error handling scenarios.
• Analyze API logs, troubleshoot issues, and collaborate with developers for defect resolution.
• Create and maintain detailed test cases covering positive, negative, and edge scenarios.
• Integrate automated test suites with CI/CD pipelines where applicable.
• Participate in requirement discussions and provide QA inputs during feature planning.
• Work closely with functional QA teams to ensure end-to-end coverage across UI and API layers.
• Report defects with proper severity, priority, logs, and supporting evidence.
• Ensure test coverage alignment with release timelines and quality standards.

Technical Skills and Experience

• Strong hands-on experience in: Postman, Rest Assured
• Good understanding of: REST APIs, JSON/XML, API authentication methods (OAuth, Bearer Token, Basic Auth, etc.), HTTP methods and status codes
• Experience in Java-based automation frameworks.
• Knowledge of API automation framework design and maintenance.
• Experience with tools like: JIRA, Git, Jenkins
• Basic SQL/database validation knowledge.
• Maintain a high level of quality while working under pressure and deadlines.
• Strong sense of teamwork, personal integrity, responsibility & accountability
• Analytical and problem-solving skills.
• Familiar with Best Practices in Test Automation
• Test it to break it attitude
• Working experience of a startup.

Qualifications

• BSc degree/ Diploma in Computer Science or relevant field