Embed within feature teams to own manual and automated testing. Perform exploratory testing, identify defects, design and implement Java-based API, UI, and integration tests, and maintain CI/CD-integrated test stability.
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Software Engineer II
Software Engineer II - Test Automation/Java
We are looking for a Software Engineer - Test Automation (Java) with 3+ years of experience to join the Developer Experience team, responsible for the Mastercard Developers portal and related tools used by developers globally.
This is a hands-on individual contributor role focused on building and maintaining high-quality automated tests and frameworks. You will work closely with software engineers to embed test automation directly into the development workflow and ensure reliable, production-ready releases.
This is an individual contributor role, with opportunities to grow in scope and responsibility over time.
HOW WILL YOU WORK
You will be an embedded member of a feature team and take end-to-end ownership of testing for assigned features.
For each feature, you will:
- Understand the feature and its requirements
- Test it manually first, exploring edge cases and real user scenarios
- Identify defects and work directly with developers to clarify issues and drive fixes
- Once the feature stabilizes, design and implement automated tests to ensure long-term reliability
The balance between manual testing and automation is typically around 50/50, but may vary depending on the feature, its complexity, and delivery phase.
WHAT WILL YOU DO
- Own testing for assigned features as part of a feature team
- Perform manual and exploratory testing, identify defects, and work directly with developers on fixes
- Design and implement automated tests in Java (API, UI, integration)
- Ensure new features are covered by reliable automation before release
- Maintain and improve test stability and CI/CD integration
WHAT YOU BRING
- Experience in test automation or software engineering in test
- Very good Java skills used in automation or tooling
- Experience testing APIs, UI, and distributed systems
- Ability to combine manual testing and automation effectively
- Experience collaborating closely with developers in feature teams
- Familiarity with CI/CD pipelines and modern delivery practices
NICE TO HAVE
- Experience in cloud-native or microservices-based environments
- Familiarity with developer platforms or tools for external/internal developer experience
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Software Engineer II
Software Engineer II - Test Automation/Java
We are looking for a Software Engineer - Test Automation (Java) with 3+ years of experience to join the Developer Experience team, responsible for the Mastercard Developers portal and related tools used by developers globally.
This is a hands-on individual contributor role focused on building and maintaining high-quality automated tests and frameworks. You will work closely with software engineers to embed test automation directly into the development workflow and ensure reliable, production-ready releases.
This is an individual contributor role, with opportunities to grow in scope and responsibility over time.
HOW WILL YOU WORK
You will be an embedded member of a feature team and take end-to-end ownership of testing for assigned features.
For each feature, you will:
- Understand the feature and its requirements
- Test it manually first, exploring edge cases and real user scenarios
- Identify defects and work directly with developers to clarify issues and drive fixes
- Once the feature stabilizes, design and implement automated tests to ensure long-term reliability
The balance between manual testing and automation is typically around 50/50, but may vary depending on the feature, its complexity, and delivery phase.
WHAT WILL YOU DO
- Own testing for assigned features as part of a feature team
- Perform manual and exploratory testing, identify defects, and work directly with developers on fixes
- Design and implement automated tests in Java (API, UI, integration)
- Ensure new features are covered by reliable automation before release
- Maintain and improve test stability and CI/CD integration
WHAT YOU BRING
- Experience in test automation or software engineering in test
- Very good Java skills used in automation or tooling
- Experience testing APIs, UI, and distributed systems
- Ability to combine manual testing and automation effectively
- Experience collaborating closely with developers in feature teams
- Familiarity with CI/CD pipelines and modern delivery practices
NICE TO HAVE
- Experience in cloud-native or microservices-based environments
- Familiarity with developer platforms or tools for external/internal developer experience
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
- Abide by Mastercard's security policies and practices;
- Ensure the confidentiality and integrity of the information being accessed;
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Mastercard Dublin, Dublin, IRL Office



One South County, South County Business Park, Dublin, Dublin, Ireland, D18
Similar Jobs at Mastercard
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Design and build scalable, production-grade agentic AI applications and platform capabilities. Apply AI and agentic patterns to improve developer productivity across the SDLC, build cloud-native services, automate PDLC/CI-CD workflows, and partner with product and data science to deliver secure, reliable, production AI solutions.
Top Skills:
Agent OrchestrationAgentic Design PatternsAi Coding AssistantsAi FrameworksAi SdksAPIsAutomated TestingAWSAzureCi/CdData PipelinesDistributed SystemsEmbeddingsEvent-Driven ArchitecturesGenerative AiInference ApisJavaKubernetesNext.JsPythonReactRetrieval-Augmented Generation
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Design and build production-grade, AI-enabled and agentic applications and platform capabilities. Apply agent orchestration, prompt/context management, and AI tooling to improve developer productivity. Build cloud-native services with reliability, observability, security, and CI/CD. Partner with product, data science, and engineering to move prototypes to production and drive platform-level engineering improvements.
Top Skills:
Agentic Development PatternsAi Coding AssistantsAi FrameworksAi SdksAPIsAutomated TestingAWSAzureCi/CdData PipelinesDistributed SystemsEmbeddingsEvent-Driven ArchitecturesGenerative AiInference ApisJavaKubernetesNext.JsPythonReactRetrieval-Augmented Generation
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Design, build, and maintain automated test frameworks and CI-integrated pipelines for RESTful APIs and microservices. Implement API/integration tests (REST Assured, Playwright, Cucumber), triage failures, perform exploratory testing, and collaborate with feature teams to ensure production-ready releases.
Top Skills:
Ci/CdCucumberDevOpsJavaJavaScriptJenkinsMicroservicesPlaywrightRest AssuredRestful Apis
What you need to know about the Dublin Tech Scene
From Bono and Oscar Wilde to today's tech leaders, Dublin has always attracted trailblazers, with more than 70,000 people working in the city's expanding digital sector. Continuing its legacy of drawing pioneers, the city is advancing rapidly. Ireland is now ranked as one of the top tech clusters in the region and the number one destination for digital companies, with the highest hiring intention of any region across all sectors.




