The product is a complex application representing a network simulator that monitors, analyses, troubleshoots, and assures the networks in real-time. It helps identify anomalies, provide root-cause analysis, plan capacity, and manage and accelerate troubleshooting. The Bytex team is large, with 16 engineers (including the senior React Team Leader) who work on frontend, backend, and testing using the Agile methodology.
Develop and maintain automated tests in Python (Pytest, PyATS) for UI, API, and integration scenarios;
Build and extend Python scripts and reusable automation utilities;
Perform regression, smoke, sanity, load, and functional testing for complex network-simulation features;
Implement and maintain POM-based UI automation (Selenium, Playwright), including handling dynamic/shadow elements;
Create and execute API tests covering request/response validation, authentication flows, and sessions;
Validate data using MongoDB/MySQL as part of the testing process;
Collaborate with developers to ensure features are testable and automation-ready;
Investigate defects across frontend, backend, and network layers and support root-cause analysis;
Contribute to testing in Docker/Kubernetes environments and CI/CD pipelines when needed;
Manually test new or complex features when automation isn’t applicable.
Agile with 2-week sprints – no ceremonies.
EU flexible schedule (9:00-18:00) with occasional meetings outside these hours for US coordination (either 7:00-9:00 morning or 18:00-21:00 evening CET)
Short Bytex HR introductory discussion;
1-2h Bytex technical discussion with our senior QA engineers;
Customer call with the direct manager;
Offer presentation.
Open office policy - Work from Anywhere and Utilities expenses coverage
Extra days off & Bi-monthly team lunch / activities
Stock options
Offers for dental and optical clinics & health subscription & sports discounts
Access to learning platforms & Bookster subscription
Good coffee and snacks at the office & discounts at coffee shops nearby
The candidate should have a strong background in computer science and experience using Python and various testing methods.
1+ years of experience in Python test automation;
Strong Python fundamentals (data types, OOP, magic/dunder methods, inheritance, etc.);
Hands-on experience with Pytest and building automation frameworks;
Nice to know PyATS or past experience using it;
Solid understanding of API testing (requests, authentication, sessions, response validation);
UI automation experience with Selenium and POM; ability to handle dynamic and shadow DOM elements;
UI automation experience with Playwright;
Experience working and managing jenkins pipelines;
Experience working with databases (MongoDB, MySQL) for validation;
Familiarity with Docker/Kubernetes or cloud-based testing environments is a plus;
Good analytical/problem-solving skills; ability to handle complex, enterprise-level systems;
Comfortable collaborating closely with development teams;
Flexibility to attend meetings aligned with US time zones.
We are an East European software development and consulting company that can help your business grow by providing high-quality services.