Senior SDET: AI-Powered Automation Engineer

Mastercard; Tallaght; On-site; EUR 90,000 - 120,000; Full time

Job summary

Mastercard is seeking a Senior Software Engineer in Test (SDET) to own end-to-end quality for agentic applications, AI-powered workflows, and platform services. You will design and implement robust automation frameworks for UI, API, and integration testing, and collaborate with engineers and data/AI teams to ensure release confidence.

The role emphasizes ownership, innovative test strategies, and improving testability across teams, with a focus on scalable automation for complex

Qualifications

• Strong automation experience and test framework design.
• Test modern distributed systems, APIs, and user-facing apps.
• Experience with AI-enabled/agentic testing approaches is a plus.

Responsibilities

• Own end-to-end quality for agentic apps, workflows, APIs, UIs, and services.
• Build and maintain automation frameworks for UI/API/integration testing.
• Define test strategies for AI/agent-based systems and guardrails.
• Create automated quality gates for CI/CD and ensure release confidence.

Skills

Java

Python

Automation

Playwright

Selenium

CI/CD

Tools

Playwright

Selenium

REST Assured

Job description

Mastercard is seeking a Senior Software Engineer in Test (SDET) to own end-to-end quality for agentic applications, AI-powered workflows, and platform services. You will design and implement robust automation frameworks for UI, API, and integration testing, and collaborate with engineers and data/AI teams to ensure release confidence.

The role emphasizes ownership, innovative test strategies, and improving testability across teams, with a focus on scalable automation for complex