quality assurance (auto) for event streaming

BUX is a fintech company focused on investing. Its products support trading and payment flows and aim to make investing more accessible.

• Design, develop, and maintain automated and manual tests for Kafka-based producers, consumers, and event flows
• Execute manual and exploratory testing where automation is not feasible
• Integrate automated regression, smoke, and integration test suites into CI/CD pipelines using GitHub Actions
• Help build and mature QA processes and standards for event-driven systems within the squad
• Apply quality gates and acceptance criteria in collaboration with Product and Development teams
• Participate in design reviews for owned features and event schemas, providing a QA perspective early in the development cycle
• Monitor and track quality metrics, test coverage, and defect trends for the streaming domain
• Validate message ordering, delivery guarantees, idempotency, and exactly-once/at-least-once semantics
• Validate producer and consumer contracts and schema compatibility as services evolve
• Perform failure-mode and resilience testing, including broker failures, consumer lag, retries, dead-letter handling, and replay scenarios
• Triage, reproduce, and prioritize bugs with development teams
• Support test environment setup, data provisioning, and maintenance in coordination with DevOps
• Use approved GenAI tooling with sanitized data to accelerate test design and automation, subject to human review, security policies, and validation of generated tests

• 5–7+ Years of experience in software quality assurance, with a senior-level track record of hands-on testing in the fintech domain
• Hands-on testing experience with Kafka or comparable event-streaming platforms
• Strong knowledge of REST API testing and microservices/event-driven architectures
• Hands-on experience with test automation frameworks
• Proficiency in at least one programming language: Java or Kotlin
• Understanding of CI/CD pipelines and automated test integration using GitHub Actions
• Ability to validate data consistency across multiple database technologies and asynchronous event flows
• Experience helping establish or mature QA processes for event-driven systems
• Experience working in a fast-paced Agile environment
• Excellent communication and collaboration skills with cross-functional teams
• Будет плюсом: fintech or financial services testing experience, including financial accuracy, transactional data, and regulatory compliance; practical experience with Postman/Newman, Charles Proxy, and Xray or similar test management tooling; performance and security testing experience; knowledge of KYC/AML regulations and compliance standards; knowledge of schema registries and contract testing tools for event-driven architectures

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