Software QA Engineer

Join us in Advancing the Environmental Global Impact within the Rail Industry

For nearly 40 years, ZTR has designed, developed and released products that have a positive environmental impact within the Locomotive Industry. Planning for an environmentally sustainable future means taking action today in preparation for tomorrow. Everyone has a role to play and we take ours seriously.

As the  Software QA Engineer , you will be working to ensure the quality and reliability of our cloud-native applications in AWS cloud environments. The successful candidate will ideally have experience in testing in IoT-enabled systems and/or AWS IoT services in order to ensure our API testing, UI validation and test automation in Playwright is optimized.

Responsibilities include but are not limited to:

• Develop and execute test strategies, test plans, and test cases for AWS‑hosted applications


• Perform comprehensive API testing for  cloud services (functional, regression, integration, end to end tests and negative tests)


• Conduct thorough UI validations across browsers and devices


• Design, develop, and maintain automation frameworks using Playwright 


• Validate end‑to‑end workflows involving UI, APIs, and AWS backend services


• Integrate automated test suites into CI/CD pipelines (AWS CodePipeline, GitHub Actions, Jenkins, etc.)


• Validate deployments on AWS environments including DEV,  QA , and PROD


• Monitor and analyze test results, log defects, and collaborate closely with developers and DevOps teams


• Ensure test coverage for high availability, scalability, and fault tolerance in AWS


• Validate IoT data flows, device communication, and  cloud ingestion pipelines

Who you are:

• 5+ years of experience in  QA Engineering / Test Automation


• Strong experience testing applications deployed on AWS


• Solid understanding of API testing concepts (REST, methods, status codes, JSON)


• Hands‑on automation experience using Playwright (UI and API)


• Good proficiency in JavaScript or TypeScript


• Working knowledge of Python for API testing, data validation, and test utilities


• Experienced with AWS services


• Familiarity with CI/CD pipelines in  cloud environments


• Experienced using Git and modern development workflows


• Strong debugging, problem‑solving, and communication skills

Nice To Have Skills:

• Working experience with AWS IoT Core, IoT Devices or sensor-based platforms 


• Expertise in event-driven architectures (SNS, SQS, Lambda triggers) 


• Understanding of performance, security, and resilience testing


• Experience with test data management and environment configuration in  cloud setups.
  

Please apply even if you don’t qualify for all responsibilities or skills, we still want to hear from you!

This role is open as we're looking to expand our team!

Why Choose ZTR?

ZTR offers a positive working environment and a group of friendly and talented industry leaders passionate about driving environmental and financial benefits for our clients. We encourage and support employees to find long-term success and explore opportunities that play into their strengths and passions. We value lateral moves as much as vertical promotions; we believe all roles should develop your skills, broaden your experience, and help you continue on a journey to build a rewarding career at ZTR.

We are looking for flexible, compassionate and enthusiastic individuals who thrive in a fast-paced working environment, and who are looking for long-term, meaningful employment in a career that makes a real difference.

At ZTR, we continuously promote a healthy balance between work, fun and family. This is a place where employees make a difference in our company and within our customers’ organizations. You will have the ability to direct your career path at ZTR as we are rapidly growing with numerous opportunities for professional growth and development.

ZTR Control Systems provides accommodations for applicants with disabilities throughout the recruitment process. If you require accommodation, please contact Human Resources. We will address information received regarding the accommodation needs of applicants in confidence.

At ZTR, we're proud to share that we do not use AI tools when screening and evaluating candidates throughout our recruitment processes. All hiring decisions are carefully made by our recruiting team. We thank all who apply to our roles. Please be advised that due to a large volume of applications, we will only contact candidates that we decide to proceed with via email or phone.