Backend QA Engineer

<h3>Accountabilities:</h3><li>Analyze business requirements, functional specifications, and user stories to design comprehensive test cases, scenarios, and validation strategies.</li><li>Perform end-to-end testing of transaction lifecycles, including initiation, authorization, settlement, and reconciliation, ensuring accuracy and consistency across the platform.</li><li>Proactively explore the system to identify edge cases, unexpected behaviors, potential risks, and defects that may not be covered by documented requirements.</li><li>Develop, maintain, and improve automated regression test suites using TypeScript and Playwright, prioritizing critical business workflows and high-risk functionality.</li><li>Automate API testing and validate REST and gRPC endpoints using tools such as Postman, grpcurl, or equivalent solutions.</li><li>Test event-driven architectures and message-based workflows involving technologies such as Kafka, RabbitMQ, or NATS, including retry mechanisms, duplicate message handling, and failure scenarios.</li><li>Execute regression testing following deployments, combining automated and manual testing wherever automation coverage remains incomplete.</li><li>Document, report, and track defects in Jira, providing clear reproduction steps, relevant request payloads, service logs, and supporting evidence.</li><li>Validate data consistency across backend services using SQL queries and database checks when necessary.</li><li>Collaborate with backend developers and other stakeholders to investigate defects, verify fixes, improve test coverage, and strengthen overall software quality.</li><li>Contribute to continuous improvement of QA processes, testing standards, and automation practices throughout the software development lifecycle.</li><h2>Requirements:</h2><li>At least four years of professional experience in manual and automated software testing.</li><li>Hands-on experience in the iGaming industry, with exposure to areas such as online slots, bonuses, sportsbook products, or payment systems.</li><li>Practical experience developing automated tests using TypeScript and Playwright.</li><li>Experience with API testing and automation, including tools such as Postman, as well as test management platforms such as TestRail or Zephyr.</li><li>Working knowledge of Docker and the ability to run and configure services locally for testing purposes.</li><li>Solid understanding of Agile and Scrum methodologies, software testing principles, and the Software Testing Life Cycle (STLC).</li><li>Good conversational English skills, with the ability to communicate effectively with distributed engineering teams.</li><li>Willingness to perform manual testing when needed, maintaining a balanced approach between exploratory testing and automation.</li><li>Strong analytical and problem-solving abilities, combined with meticulous attention to detail and a proactive approach to identifying risks.</li><li>Familiarity with Go or the ability to read and understand Go code is an advantage.</li><li>Basic SQL knowledge and the ability to query relational databases to validate data integrity are desirable.</li><li>Experience supporting User Acceptance Testing (UAT) with business stakeholders is a plus.</li><li>Exposure to CI/CD pipelines and automated testing integration is beneficial.</li><li>Familiarity with Kubernetes, observability tools, and monitoring practices is an advantage.</li><li>Understanding of microservices architectures and distributed backend systems is desirable.</li><li>A collaborative mindset, a sense of ownership, and the ability to work independently in a fully remote environment are important for success.</li><h2>Benefits:</h2><li>
<strong>Fully remote work:</strong>Work remotely from eligible locations across Europe, with flexibility to organize your working environment.</li><li>
<strong>Generous time off:</strong>Take up to 28 unavailable days per year, in addition to public holidays.</li><li>
<strong>Startup environment:</strong>Join a growing B2B technology platform within a new technology ecosystem launched in 2025.</li><li>
<strong>International collaboration:</strong>Work with colleagues from different countries in a globally distributed team.</li><li>
<strong>Technical ownership:</strong>Help shape quality assurance practices, strengthen automation coverage, and contribute to the platform's development as it scales.</li><li>
<strong>Professional growth:</strong>Gain hands-on experience with backend testing, transaction processing, API automation, and event-driven architectures.</li><li>
<strong>Varied technical challenges:</strong>Work across manual testing, automated regression suites, distributed services, and complex transaction workflows.</li><li>
<strong>Collaborative engineering culture:</strong>Partner closely with backend developers and other stakeholders to improve reliability, prevent production issues, and deliver high-quality software.</li>