Senior Automation Tester in Java

We are seeking a Senior Automation Tester in Java to define and lead the test automation strategy for our squad, ensuring high-confidence releases across backend services, integrations and UI flows. The role involves hands-on building and maintaining automated test suites, mentoring functional QAs to adopt automation practices, and promoting quality engineering best practices across the delivery lifecycle.
Responsibilities
Own and evolve the squad's test automation strategy, including test pyramid, automation coverage targets, risk-based approach, and quality gates
Define and enforce Definition of Done quality criteria, covering automation expectations, regression scope, and non-functional checks
Establish and monitor quality KPIs such as automation pass rate, flaky tests, defect leakage, and trend reporting
Design, implement, and maintain automated tests for RESTful APIs, executed with JUnit
Validate API contracts, versioning, backward compatibility, negative/error scenarios, and authorization patterns
Create robust integration test coverage for microservices and integration flows, including retries, error handling, and data consistency
Validate persistence and data integrity using SQL against Microsoft SQL Server
Implement and maintain reliable UI automation for critical user journeys
Debug API/UI interaction issues in collaboration with engineers
Design and execute performance/load tests, including workload models, baselines, and throughput/latency measurements
Integrate automated suites into CI/CD pipelines and improve reliability and speed through parallelization and test selection strategies
Mentor functional QAs to adopt automation through pairing, code reviews, training sessions, and clear contribution paths
Requirements
5+ years of proven experience as an Automation QA, including ownership of automation delivery in a squad/team
Strong skills in Java test automation using JUnit
Strong experience in API automation with RestAssured or Karate
Experience in UI automation with Playwright and CI execution best practices
Performance testing experience using Apache JMeter, including test plans, execution, and analysis
Experience with Git and Azure DevOps for CI/CD, including pipeline integration, gating, and reporting
Solid SQL skills and experience validating data in Microsoft SQL Server
Strong mentoring and collaboration skills, with the ability to raise QA maturity across functional and technical testing
English proficiency at B2 level or higher
Fluency in Greek
Nice to have
Familiarity with Agile methodologies
Experience with Azure DevOps
Background in Quality Architecture
Proficiency in REST Assured
We offer
For your comfortable work:
Remote and hybrid work opportunities
Option to work from our centrally located office in Athens
Corporate laptop provided
Private health insurance
Meal vouchers / restaurant tickets
My Benefit card (264€/year)
Monthly public transportation card
For your growth:
Global and diverse client portfolio, large-scale projects, and trendy technologies
Diverse multicultural, multi-functional, and multilingual work environment
Opportunity to contribute to internal and open-source products
Outstanding career development opportunities with a transparent career path and a roadmap to accelerate your journey
Possibility to create a Personal Development Plan from the first day in the company
Numerous opportunities for self-development: hard & soft skills internal training courses, mentoring programs, and unlimited access to LinkedIn Learning courses, external e-Libraries
Certification opportunities
Knowledge-sharing with colleagues from EPAM's global tech and non-technical communities
Language courses
EPAM strives to provide its global team of over 61,700 professionals in more than 55 countries with opportunities for professional growth from day one of collaboration. Our colleagues are the source of EPAM's success, so we value cooperation, strive to always understand our clients' business and aim for the highest quality standards. No matter where you are, you will join a dedicated, diverse community that will help you realize your potential to the fullest.
The remote option applies only to the Candidates who will be working from any location in Greece.

Work arrangement
Yes