QA Automation Engineer

SDET/QE Engineer

Location: Princeton, NJ

Contract 12+ months

Senior Software Development Engineer in Test (SDET) / Quality Engineering Engineer

Job Summary

We are seeking a highly skilled and hands-on SDET / Quality Engineering Engineer with 8+ years of overall QE and test automation experience to drive quality initiatives across web applications, APIs, and backend systems. The ideal candidate will have deep expertise in designing and implementing scalable automation frameworks using Playwright and Python , with TypeScript experience considered a strong advantage .

This role requires strong technical proficiency in end-to-end test automation, API validation, database testing, test case design, and CI/CD integration. The candidate should be capable of independently driving automation strategies while collaborating closely with developers, product managers, and quality engineering teams.

Key Responsibilities

• Design, develop, and maintain robust automation frameworks for UI, API, and backend testing.
• Create scalable and maintainable automated test suites using Playwright and Python .
• Automate end-to-end testing across web applications and services.
• Develop and execute API automation tests for RESTful services.
• Perform backend and database validations using SQL queries and data integrity checks.
• Design comprehensive test scenarios, test cases, and test data based on business requirements.
• Participate in requirement analysis, sprint planning, and defect triaging activities.
• Identify automation opportunities and improve test coverage across applications.
• Integrate automated test suites into CI/CD pipelines and support continuous testing practices.
• Analyze test execution results, identify root causes, and work with development teams to resolve issues.
• Define and implement quality metrics, reporting, and automation best practices.
• Mentor junior testers and contribute to overall QE process improvements.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 8+ years of overall Quality Engineering / Testing experience.
• 5+ years of hands-on test automation experience.
• Strong expertise in Playwright automation framework .
• Advanced programming skills in Python .
• Strong experience in UI / Front-End Automation Testing .
• Hands-on experience in API automation and validation .
• Experience in Database testing , SQL query development, and data verification.
• Strong understanding of Software Development Lifecycle (SDLC) and Software Testing Lifecycle (STLC).
• Experience designing and executing manual and automated test cases.
• Hands-on experience with defect management and test management tools.
• Experience working in Agile/Scrum environments.

Preferred Qualifications

• Experience with TypeScript and Playwright TypeScript-based frameworks.
• Experience with BDD frameworks and test automation design patterns.
• Knowledge of CI/CD tools such as Azure DevOps, GitHub Actions, Jenkins, or GitLab CI.
• Experience with cloud-based testing environments.
• Familiarity with container technologies such as Docker.
• Exposure to performance and security testing concepts.

Required Technical Skills

Test Automation

• Playwright
• Python
• Test Automation Framework Development
• UI/Front-End Automation
• Cross-browser Testing

API Testing

• REST API Testing
• API Automation
• Postman
• Request/Response Validation
• Authentication (OAuth, JWT)

Database Testing

• SQL
• Data Validation
• Backend Testing
• Data Integrity Verification

Version Control & CI/CD

• Git
• Azure DevOps
• Jenkins
• GitHub Actions

Quality Engineering

• Test Strategy
• Test Planning
• Test Case Design
• Test Data Management
• Defect Lifecycle Management
• Agile/Scrum Methodologies

Desired Candidate Profile

• Strong analytical and problem-solving skills.
• Self-driven and highly hands-on automation engineer.
• Excellent communication and collaboration abilities.
• Passionate about quality engineering and continuous improvement.
• Ability to work effectively in a fast-paced Agile environment.

Experience: 8+ Years



Primary Skills: Playwright, Python, API Automation, Database Testing, UI Automation, Test Case Design



Preferred Skills: TypeScript, CI/CD, Azure DevOps, Agile Testing, Framework Development

About TekNinjas

TekNinjas is a global IT staffing partner placing skilled professionals with leading enterprises and system integrators across the US, Canada, UK, India, and the EU. We focus on the right fit - not just the fast fill - and stay engaged with our consultants well beyond the start date.

We're the right partners in your success.

TekNinjas is an Equal Opportunity Employer.