QA Engineer Senior

We are looking for a QA Engineer to join the team developing Aquila Flex and take responsibility for the quality of a complex POS and back-office system used in the retail and hospitality sectors.
The system supports sales, payments, returns, promotions, inventory management, reporting, fiscal devices, and integrations with external systems.
Responsibilities

• Analysing business and technical requirements and preparing test cases, test scenarios, and test documentation.

• Performing functional, integration, regression, and end-to-end testing.

• Designing, developing, and maintaining reliable and scalable automated tests for APIs and user interfaces.

• Designing and executing load, stress, and performance tests based on realistic system usage scenarios.

• Testing sales, payment, and inventory processes, as well as integrations with external systems and devices.

• Testing REST APIs and verifying data in databases.

• Analysing test results, application logs, and system behaviour to identify defects, performance bottlenecks, and root causes.

• Documenting defects and collaborating with developers, Business Analysts, the Product Owner, Project Manager, and Designer.

• Supporting the integration of automated tests into CI/CD processes.

• Participating in release preparation, acceptance testing, pilot deployments, and production rollouts.

Requirements

• At least 5 years of experience in software testing.

• Experience in testing complex business systems.

• Practical experience in creating test cases, test scenarios, and test documentation.

• Practical experience in designing, developing, and maintaining automated UI or API tests.

• Practical experience in preparing and executing load, stress, or performance tests.

• Good programming or scripting skills and an understanding of software development practices.

• Ability to independently analyse requirements, business processes, edge cases, and system behaviour under different workloads.

• Experience in testing REST APIs.

• SQL knowledge sufficient to independently verify data.

• Ability to analyse application logs and performance test results.

• Good understanding of web technologies, APIs, databases, and basic system architecture.

• English at a minimum B2 level.

Nice to Have

• Experience with POS, ERP, e-commerce, payment systems, or retail solutions.

• Knowledge of sales, inventory, or fiscal processes.

• Experience with Java and/or Python, particularly in the context of test automation.

• Experience with API test automation frameworks such as Karate or similar solutions.

• Experience with performance testing tools such as JMeter or comparable solutions.

• Experience integrating automated tests into CI/CD pipelines.

• Knowledge of Git and YouTrack.

• Familiarity with containerised environments such as Docker.

• Basic knowledge of Linux systems.

• ISTQB Foundation Level certification.

The technology choice for test automation is open. We are not tied to a specific programming language or toolset, but experience with Java, Python, Karate, JMeter, or comparable solutions would be beneficial.

What we offer:

• Employment in a reputable organization (ITwiz BEST100), operating in accordance with international quality and security standards (ISO 9001, ISO 27001)

• A non-corporate atmosphere and a flat organizational structure

• Opportunities for continuous development through:

  • working with a variety of technologies on projects for well-known clients

  • collaboration with an experienced team of experts who are eager to share their knowledge

  • co-financing of training and certifications

• Employee Referral Program

• Participation in charitable initiatives, including cooperation with the Joanna Radziwiłł Foundation “Opiekuńcze Skrzydła” and involvement in the “Gwiazdorzymy” holiday campaign

• A diverse and inclusive work environment – our company brings together representatives of four generations

• Equal development opportunities – 50% of managerial and leadership positions are held by women

• Organizational culture based on values:

  • we act with good intentions

  • we share knowledge

  • we take responsibility

  • we continuously improve people are our top priority

  • we act with a clear sense of purpose and meaning

  • we communicate honestly and professionally​