Senior QA Engineer - Hybrid, Automation & API Testing

MKS Instruments, Inc.; Poznań; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid work options

Private health insurance

Annual bonus

Wellness programs

Team events

Job summary

MKS Instruments, Inc. is seeking a Senior Quality Assurance Engineer to drive quality across our VCS solutions. You will design and execute manual and automated tests, contribute to automation strategy, and ensure seamless integration with CI/CD pipelines.

You will collaborate with system architects, PLC engineers, and a commissioning team in the EU to deliver reliable products. The role emphasizes testing across RESTful APIs, test framework development, and mentoring junior engineers, in a

Qualifications

• Experience in both manual and automated testing.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration in English.

Responsibilities

• Design, develop, and execute test strategies covering both manual and automated testing.
• Develop and maintain test automation frameworks using Python and JavaScript.
• Perform manual and automated API testing with Postman and Swagger.
• Integrate automated tests into CI/CD pipelines to ensure continuous quality.
• Identify, document, and track defects with steps to reproduce.
• Contribute to performance testing and test environment management.
• Mentor junior QA engineers in testing best practices.

Skills

Senior QA experience

Manual testing

Automated testing

Python

JavaScript

API testing

CI/CD

Education

Bachelor’s degree in Computer Science or related field

Tools

Postman

Swagger

Job description

MKS Instruments, Inc. is seeking a Senior Quality Assurance Engineer to drive quality across our VCS solutions. You will design and execute manual and automated tests, contribute to automation strategy, and ensure seamless integration with CI/CD pipelines.

You will collaborate with system architects, PLC engineers, and a commissioning team in the EU to deliver reliable products. The role emphasizes testing across RESTful APIs, test framework development, and mentoring junior engineers, in a