Senior Automation QA (Java)

About the Position

N-iX is seeking a skilled Senior Automation QA Engineer to join a key digital transformation initiative for a leading commercial retail bank. This role is pivotal in ensuring the quality and reliability of the bank's payment card services.

Responsibilities

• Design, build, and maintain robust API test automation frameworks in Java (REST Assured, TestNG/JUnit) for asynchronous Temporal workflows and Spring Boot services.
• Perform functional, integration, and regression testing of end-to-end customer journeys across staging, pre-release, and production-like environments for web/mobile channels.
• Work extensively with mocks and stubs for core banking interfaces to enable early and continuous integration testing.
• Define test data requirements and coordinate with the client’s testing department to order synthetic test profiles.
• Integrate automated test suites into CI/CD pipelines (GitLab CI). Monitor SonarQube quality gates, log and track defects in Jira, and perform root-cause analysis for failed workflow executions.
• Collaborate with the client’s central QA team and business stakeholders during User Acceptance Testing (UAT), performance benchmarks, and security release validations.

Requirements

• 5+ years of experience in Quality Assurance with a strong balance between Automation (Java) and Manual API testing in complex enterprise, banking, or fintech environments.
• Proficiency in Java 17+, REST Assured, JUnit/TestNG, WireMock/Mockito (or similar mocking tools), and Maven/Gradle.
• Deep understanding of RESTful API testing, JSON/XML contract validation, HTTP protocols, and testing asynchronous or event-driven architectures (Kafka, background execution workers).
• Proven experience in designing, building, and maintaining custom mock services from scratch to simulate complex backend interactions.
• Hands-on experience testing multi-tier architectures using mocks/stubs, analyzing backend logs (OpenSearch/Elasticsearch, Kibana), and managing complex test data setups.
• Strong experience with Git, GitLab CI/CD, Postman/Swagger, Jira, Confluence, and SonarQube.

We Offer

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

not applicable for freelancers

About the Company

N-iX is a leading provider of digital transformation services, empowering businesses to innovate and thrive in the digital age.