Senior Software Development Engineer in Test (+JS)

Warszawa - Poland

Monthly Salary: Not Disclosed

Posted on: Yesterday

Vacancies: 1 Vacancy

Job Summary

We are seeking a highly skilled Senior SDET to join our clients 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 the local market they maintain a strong presence and continue to expand their portfolio across IT AV unified communications and gaming solutions.

What Youll 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!

We are seeking a highly skilled Senior SDET to join our clients 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 sy...