JD-4: Senior Software Test Engineer (m/f/d)
Location: Salzburg, Austria | Level: Senior
Role Overview
Seeking a Senior Software Test Engineer with 7+ years of QA experience to ensure quality and reliability of an industrial automation platform used in mission-critical manufacturing and energy environments. The role encompasses testing SCADA/HMI, soft-PLC logic, and IIoT capabilities deployed in 24/7 production systems globally.
Key Responsibilities
· Define and execute comprehensive test strategies (functional, integration, regression, system) for desktop, web, and embedded automation components.
· Design detailed test cases, test data sets, and regression suites for Windows applications, HTML5 web dashboards, and REST APIs.
· Develop and maintain automated test frameworks (UI/API/integration) using industry-standard tools integrated into Azure DevOps CI/CD.
· Execute end-to-end scenarios simulating real manufacturing and energy plant operations, including industrial protocol communication and real-time data validation.
· Analyze defects, reproduce customer-reported issues, document findings, and verify fixes in collaboration with developers.
· Improve testing processes and standards; mentor junior testers in mission-critical QA practices.
Required Qualifications
· 7+ years software testing/QA experience in industrial automation, SCADA, or mission-critical technical products.
· Expert-level knowledge of test design techniques, complete software testing lifecycle, and risk-based testing methodologies.
· Advanced hands-on experience with UI and API automation (Selenium, Playwright, or equivalent) with scripting in C#, Python, or Java.
· Proficiency with Git version control and CI/CD environments (Azure DevOps, Jenkins, or similar).
· Analytical mindset with excellent documentation, attention to detail, and strong communication skills.
· Proficient German and English (spoken and written).
Preferred Skills
· Experience testing PLC/soft-PLC logic, drive systems, OPC UA, or HMI/SCADA applications.
· Knowledge of industrial communication protocols, real-time systems, hardware-in-the-loop, or field simulation testing.
· ISTQB certification or equivalent QA qualification.
· Performance, load, and security testing experience in 24/7 industrial environments.