Senior Java Automation Tester — Data & API Quality (Hybrid)

Jit Team; Województwo pomorskie; Hybrid; PLN 166,000 - 203,000; Full time

Benefits offered by this job

Flexible work organization

Daily English interaction

Scandinavian culture & work-life bal

Team integrations

Job summary

Jit Team is seeking a Senior Test Automation Engineer to join a banking project and ensure data quality across transformations, validating data, and testing complex integrations. You will design and maintain automated tests for data flows, backend services, APIs, and integration processes to support an Automation First approach and reliable data across systems.

You will work in a hybrid setup from Gdynia, Gdańsk, or Warsaw, with three days in the office per week, collaborating with developers

Qualifications

• 6+ years of experience in test automation in complex enterprise environments.
• Hands-on experience with Java 17+ for test automation development.
• Practical experience with JUnit 5.
• Strong SQL skills and database testing experience.
• Experience testing data quality and transformations.
• REST and/or SOAP API testing experience.
• Experience using RESTAssured for automated API testing.
• Understanding QA methodologies, test design, defect management, and regression testing.
• Experience designing and maintaining test automation frameworks with Clean Code.
• Knowledge of Git and collaborative development practices.
• Experience with CI/CD pipelines (Jenkins, Bamboo, or similar).
• Experience with Jira and test management tools.

Responsibilities

• Design and implement automated tests for data transformations, data distribution processes, integrations, and APIs.
• Validate data quality and ensure consistency across systems.
• Perform database testing, data verification and backend process validation.
• Develop and maintain scalable, maintainable test automation frameworks.
• Create and execute regression test suites integrated with CI/CD pipelines.
• Analyze test results, investigate defects, and provide clear test evidence and reporting.
• Collaborate with developers, business analysts, Product Owners, and other teams.
• Support automation initiatives for new and existing products.
• Leverage AI tools to improve test automation efficiency.
• Mentor and support less experienced team members in test automation best practices.

Skills

Test automation

Java 17+

JUnit 5

SQL

API testing

CI/CD

Git

QA methodologies

Data validation

Clean Code

Tools

RESTAssured

Jenkins

Bamboo

Allure

Kafka

Jira

Master Data Management

Job description

Jit Team is seeking a Senior Test Automation Engineer to join a banking project and ensure data quality across transformations, validating data, and testing complex integrations. You will design and maintain automated tests for data flows, backend services, APIs, and integration processes to support an Automation First approach and reliable data across systems.

You will work in a hybrid setup from Gdynia, Gdańsk, or Warsaw, with three days in the office per week, collaborating with developers