Senior Software Development Engineer in Test

2 weeks ago

Belgrade, Central Serbia Bonapolia Full time

We are seeking a highly skilled Senior SDET to join our client's Digital Ecommerce team and take ownership of advanced test automation initiatives across internal high-traffic platforms. The ideal candidate will be an expert in building scalable automation frameworks, validating complex distributed systems, and ensuring quality across web, API, mobile, and cloud-native solutions.

This role requires a strong engineering mindset, hands-on automation expertise, and readiness to leverage AI tools and AI agents to accelerate testing, troubleshooting, and framework development..

About the Client

Our client is a leading global IT solutions distributor, supporting partners in over 100 countries. They provide a wide range of hardware, software, cloud, and infrastructure solutions, helping technology partners scale and maximize the value of their investments. In the local market, they maintain a strong presence and continue to expand their portfolio across IT, AV, unified communications, and gaming solutions.

What You'll Do

● Design, implement, and maintain modular, scalable automation frameworks using C#/.NET, MSTest, xUnit; or Python/JS

● Develop end-to-end automated tests for web, API, and mobile applications using Selenium, Playwright, and Appium with parallel and headless execution

● Automate API and microservices testing (Postman, RestAssured, Karate), including contract, negative, and fuzz testing

● Test SQL and NoSQL databases, ensuring data accuracy, integrity, and consistency across distributed systems

● Conduct load, stress, and scalability tests, apply chaos engineering, and collaborate on observability using Azure Monitor, Application Insights, Dynatrace, or ELK

● Deploy and manage test frameworks in cloud and container environments (AKS, Docker) and automate provisioning via Azure CLI

● Integrate automated tests into CI/CD pipelines with quality gates, static analysis, parallel execution, and fail-fast mechanisms

● Collaborate with Development, DevOps, and QA teams, produce documentation, deliver training, and conduct peer code reviews

What You Bring

● 8+ years in software testing; 3+ years in automation/SDET.

● Strong C#/.NET Core + exposure to JavaScript/Python.

● Expertise in Selenium/Cypress/Playwright/Appium.

● API testing tools: Postman, RestSharp, Karate.

● Cloud & DevOps experience: Azure, Docker, Kubernetes, Azure DevOps.

● SQL/NoSQL testing experience.

● AI-ready: ability to use LLM tools and implement AI agents in workflows.

English level

Advanced


 Location: Bulgaria, Lithuania, Poland, Romania, Uzbekistan

Ready to Join?
We look forward to receiving your application and welcoming you to our team

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