End to End QA Tester

Cozycozy is the only platform that gives you real-time access to all available holiday accommodations. Whether you're searching for a hotel, apartment, hostel, villa, or even a treehouse, our service features over 20 million listings from over 100 booking sites. You will find popular options like Airbnb, , Abritel/VRBO and , as well as plenty of specialised marketplaces to explore, such as Agriturismo, Gîtes de France, Onefinestay, Belvilla, Travelski, and many others. Experiencing rapid growth, we are now present in over 50 countries in 20 languages, with offices in Paris and Budapest.

As an End-to-End QA Tester at Cozycozy, you are the dedicated guardian of the user experience and their primary internal advocate. Your mission is to anticipate and find every bug before our millions of travelers do, ensuring the Cozycozy product is reliable, accurate, and seamless across every platform (Web, Android, and iOS).

Your role is highly hands-on, requiring you to execute comprehensive end-to-end testing and monitor the stability of our live service. Working closely within cross-functional teams, you will champion quality by identifying, documenting, and triaging defects with precision. If you are passionate about detailed execution and relentlessly protecting the interests of the user, this role is for you.

The position is an onsite role based in our office in Budapest.

Test Execution and Defect Management

• Daily service checks: Perform essential daily checks and monitoring tests across the live environment to verify core platform functionality, data freshness, and accurate price/availability.
• E2E testing: Execute detailed manual and automated end-to-end test cases for new features, regression testing, and system integration testing across Web, Android, and iOS devices.
• Defect triage & prevention: Accurately identify, reproduce, and document software defects and discrepancies, providing clear steps, expected results, and impact analysis in our bug tracking system (Jira). Your goal is zero user-reported bugs.
• Release assurance: Participate actively in release cycles, performing final smoke and sanity tests to ensure high quality before every production deployment.

Test Assets and Automation

• Test case maintenance: Create, update, and maintain robust test cases and test data in our test management tool, ensuring test coverage remains high.
• Automation contribution: Work with the QA Team Lead to learn and contribute to test automation scripts (e.g., using Selenium, Appium, or similar frameworks) for repetitive and critical flows.
• API testing: Perform basic functional and regression testing on integration APIs using tools like Postman.

Collaboration and quality advocacy

• Developer liaison: Collaborate directly with developers to ensure defects are clearly understood and resolved quickly; participate in feature discussions to identify testing risks early.
• User Focus (Voice of the User): Act as the relentless internal advocate for the user, consistently approaching testing from a user-centric perspective to ensure the product meets high quality, usability, and functional standards.

• 1+ years of professional experience in a hands-on QA Tester role.
• Proven experience in end-to-end manual testing for high-traffic Web and/or Mobile applications (iOS and Android).
• Experience with bug tracking and test management systems.
• A basic knowledge of API testing concepts and ability to read logs or use developer tools to analyze root causes.
• Exceptional focus on detail and a methodical, organized approach to testing and reporting.
• Clear, concise communication skills in English, both written (for bug reports) and verbal (for team collaboration).
• Self-motivation and are able to manage testing activities across multiple sprints and features simultaneously.
• A passion for the travel industry and enthusiasm for testing a global, consumer-facing product.

Bonus Points

• If you have hands-on experience writing or maintaining tests using an automation

framework (e.g., based frameworks).

• If you have experience testing applications that rely heavily on real-time data or

external partner integrations.

Jumpstart your career by joining our unique, international team where your contributions directly support our hyper-growth expansion across more than 50 countries, positioning Cozycozy at the forefront of global travel innovation

The core challenge of this role is to execute testing with speed and precision to validate the flow of real-time availability and pricing data, ensuring a flawless search experience across all devices.

Opportunity to become an expert in E2E testing for a global, complex product and contribute directly to our automation roadmap.

A stimulating and supportive work environment with an international team (12 nationalities represented) that is passionate about travel and innovation.

Strong entrepreneurial and open-minded culture with numerous projects to imagine and lead.

• Enjoy our office in the center of Budapest with unlimited coffee, tea, drinks, and snacks.

• A first 1:1 interview with the Hiring Manager
• A Technical Test to present to the stakeholders
• Meet the team onsite

Once we receive your application, we will thoroughly review your CV and cover letter and will return back to you with an update as soon as possible. We invite you to get to know more about us by visiting and follow us on LinkedIn , Instagram, Tiktok and Facebook