Senior Test Automation Engineer — AI-Driven QA & CI/CD

Jobtailor; Dublin; On-site; EUR 70,000 - 100,000; Full time

Job summary

Jobtailor is seeking an experienced QA Automation Engineer to design, build and maintain automated test frameworks across API, UI, and integration testing. You will collaborate with backend, frontend, and mobile teams to ensure robust end-to-end coverage and data integrity in SaaS environments.

Ideal candidates bring 5+ years in test automation, strong Java and TypeScript/JavaScript skills, and hands-on experience with modern testing tools.

Qualifications

• 5+ years of experience in test automation for enterprise or SaaS products.
• Strong engineering skills with Java, TypeScript/JavaScript, or similar languages.
• Hands-on experience with JUnit/TestNG, Selenium/WebDriver, Cypress, Playwright, RestAssured, or equivalents.
• Understanding of distributed systems, APIs, microservices, authentication, and message flows.
• Experience testing SaaS applications in cloud environments; AWS preferred.
• Experience using Docker/Kubernetes.
• Familiarity with CI/CD pipelines and integrating automated tests into GitHub Actions, Jenkins, or similar systems.
• Strong debugging skills, including analyzing logs, traces, and service interactions.
• Ability to understand system architecture diagrams, API contracts, and data models.
• Willingness to adopt AI-powered test development tools in daily workflow.
• Strong communication skills and ability to work closely with multiple engineering teams.

Responsibilities

• Design and enhance automated test frameworks for API, UI, and integration testing.
• Collaborate with backend, frontend, and mobile engineers to build end-to-end test coverage.
• Validate API contracts, authentication flows, session behavior, and data integrity across microservices.
• Ensure tests work across development, QC, staging, and production-like environments.
• Use GitHub Copilot and other AI tools to generate test cases, automation scaffolding, and documentation.
• Apply AI-powered techniques to identify missing coverage, explore edge cases, and perform regression analysis.
• Establish QA best practices for AI-assisted test creation and maintenance.
• Build automated health checks and smoke tests for release pipelines.
• Work with DevOps to instrument logs, metrics, and traces for test diagnostics and failure troubleshooting.
• Participate in performance and load testing and analyze bottlenecks and system-level issues.
• Validate release readiness and drive quality gates for deployments with service delivery managers.
• Collaborate with architects and developers on approaches that improve testability and maintainability.
• Support P1 incident investigations through automated reproduction, diagnostics, and post-incident test coverage improvements.
• Participate in code reviews and contribute to coding best practices within the QA automation group.
• Report to the Director of Quality Assurance

Skills

Java programming

TypeScript/JavaScript

Test automation

Distributed systems

API testing

Education

Degree in Computer Science

Degree in Engineering

Tools

JUnit

TestNG

Selenium WebDriver

Cypress

Playwright

RestAssured

Docker

Kubernetes

GitHub Actions

Jenkins

AWS

Job description

Jobtailor is seeking an experienced QA Automation Engineer to design, build and maintain automated test frameworks across API, UI, and integration testing. You will collaborate with backend, frontend, and mobile teams to ensure robust end-to-end coverage and data integrity in SaaS environments.

Ideal candidates bring 5+ years in test automation, strong Java and TypeScript/JavaScript skills, and hands-on experience with modern testing tools.