Software Engineer in Test

Treaty Software Ireland; Limerick; On-site; EUR 65,000 - 95,000; Full time

Job summary

Treaty Software Ireland seeks a Software Development Engineer in Test to design, develop, and maintain automated test solutions that ensure the quality, reliability, and performance of digital products. You will integrate automated testing into CI/CD pipelines and work closely with engineers, DevOps, product owners, and other testers.

The role emphasizes production-quality code and automated verification of REST APIs, web services, and AI-enabled features.

Qualifications

• BS in Computer Science, Software Engineering, Computer Engineering or equivalent experience.
• 3+ years in software development or test automation.
• Strong knowledge of software testing methodologies and best practices.
• Experience with automated tests using C# and .NET.
• Experience testing REST APIs and web services.
• Experience with Git.
• Experience in Agile teams.
• Experience with Azure DevOps or similar CI/CD platforms.

Responsibilities

• Design, develop and maintain automated test solutions.
• Integrate automated testing into the SDLC and CI/CD pipelines.
• Interface with Software Engineers, DevOps, Product Owners, and Test Engineers.
• Build production-quality test code that verifies software.

Skills

Problem solving

Analytical thinking

Communication skills

Attention to detail

Issue investigation

Education

Bachelor's degree in Computer Science/Software Engineering or equivalent

Tools

Playwright

Selenium

xUnit/NUnit

Postman

Performance testing

Job description

Company Description

Treaty Software Ireland is a custom software development company focused on turning clients’ ideas into robust, high-impact digital solutions. We partner with private and public organizations to modernize legacy systems, build innovative applications, and drive meaningful digital transformation. Our expertise spans custom software, data analytics, Microsoft digital and app innovation, and AI integration, helping businesses become more competitive and efficient. With offices in Ireland and California, we operate in international markets while maintaining a collaborative, client-centered culture that values quality, reliability, and long-term partnerships.

Role Description

The Software Development Engineer in Test will be responsible for designing, developing, and maintaining automated test solutions to ensure the quality, reliability, and performance of software products. The role will work closely with Software Engineers, DevOps Engineers, Product Owners, and Test Engineers to integrate automated testing into the software development lifecycle and CI/CD pipelines. This is a role where you will design and build production quality code that verifies software, not a testing role that occasionally writes scripts.

Roles and Responsibilities

• Problem solving and analytical thinking.
• Strong communication and collaboration skills.
• Strong attention to detail.
• Ability to investigate and diagnose complex issues.
• Ability to balance automation coverage with business value.
• Create and maintain automated functional, integration, system, regression and performance tests.
• Develop reusable and version controlled automated testing scripts and tools.
• Build software tests that interface with external systems and hardware devices to enable isolated, reproducible test environments independent of third-party availability.
• Design and execute tests that model realistic concurrent user journeys and produce actionable results.

Technical Skills

Frameworks

• Preferred: Playwright, Selenium, xUnit / NUnit, Postman, Performance Testing

Tools

Education and Experience

• Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or equivalent experience.
• 3+ years of experience in software development or software test automation.
• Strong knowledge of software testing methodologies and best practices.
• Experience developing automated tests using C# and .NET.
• Experience testing REST APIs and web services.
• Experience with source control systems such as Git.
• Experience working within Agile software development teams.
• Experience with Azure DevOps or similar CI/CD platforms.
• Strong analytical and troubleshooting skills.

Preferred Experience

• Instrument-to-software integration testing.
• Automated verification and validation activities.
• Working with simulators, hardware interfaces, and distributed systems.