Middle/Senior Full-Stack QA Engineer (C#)

IDT is seeking a Middle/Senior Full-Stack QA Engineer to join our cross-functional Scrum team building and evolving our web application.
We are looking for a self-motivated engineer with a strong automation background, hands-on experience in C#, and a deep understanding of quality practices across the entire testing stack.

Responsibilities:

• Design, implement, and maintain automated test frameworks in C# using NUnit.
• Contribute to test strategy, ensuring comprehensive coverage across UI, API, integration, and performance testing.
• Develop, maintain, and execute manual test cases when needed to support feature delivery.
• Integrate and maintain automation within CI/CD pipelines using GitHub, Jenkins, Docker, Kubernetes, and AWS.
• Collaborate closely with developers, product owners, and other QA engineers in a Scrum team to deliver high-quality software.
• Drive improvements in testing processes, frameworks, and tooling.
• Ensure product quality by identifying defects early, providing detailed reports, and supporting root cause analysis.

Required Skills:

• Proven experience in test automation for Web UI and API using C#, NUnit.
• Strong understanding of test architecture, design patterns, and coding standards.
• Hands-on experience with CI/CD and infrastructure tools: GitHub, Jenkins, Docker, Kubernetes, Selenium Grid, AWS.
• Experience with both manual and automated testing in Agile/Scrum environments.
• Strong analytical and problem-solving skills, with the ability to take ownership of complex quality challenges.
• Familiarity with relational and NoSQL databases (Oracle, MongoDB).
• English proficiency – B2 level or higher.

Nice-To-Have:

• Knowledge of AWS services such as SQS, SNS, and S3.
• Experience testing distributed systems and microservices.
• Hands-on experience with performance and load testing tools (K6).
• Exposure to monitoring and observability tools for quality insights.

We Are Pleased To Offer:

• Remote work as b2b contractor or hybrid/ Remote full-time in Belarus.
• Really good hardware.
• An exciting and challenging job with talented people around.
• Great learning and growth opportunities.
• Compensation for professional training, seminars, and conferences.
• First-class English lessons.
• More perks for the Minsk office full-time employees.

IDT Corporation is an American telecommunications company founded in 1990 and headquartered in New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ 1300 people across 20 countries, and have revenues above $1.5 billion. 
We are not ”another big IT corporation” – we encourage and support any in-house entrepreneurs to develop their ideas into business action.
Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT’s mission of enabling people to keep in touch and share resources with family and friends worldwide.
You will love there with us :)