Senior Test Engineer - QA (UI & API)

Expect more. Connect more. Be more at Diebold Nixdorf. Our teams automate, digitize, and transform the way more than 75 million people around the globe bank and shop in this hyper-connected, consumer-centric world. Join us in connecting people to commerce in this vital, rewarding role.

Position Overview

We’re looking for a curious, impact-driven engineer who is passionate about performance, scalability, and engineering quality.

In this role, you won’t just “test” systems—you’ll shape how they perform in the real world. You’ll design intelligent performance strategies, build automation, and partner closely with developers to ensure our applications are fast, resilient, and delightful to use at any scale.

If you enjoy digging into bottlenecks, working across UI and APIs, and building tools that make engineering teams stronger, this role is for you.

Location

Hybrid model is possible (minimum 3 days in Katowice office per week).

• Drive performance quality

Design and execute performance strategies covering UI and API layers (load, stress, and beyond)

• Build smart automation

Create scalable, reusable test frameworks and scripts that simulate real-world usage

• Turn data into insight

Analyze performance metrics, identify bottlenecks, and help teams make data-driven decisions

• Be part of the engineering flow

Embed performance testing seamlessly into CI/CD pipelines

• Enable great environments

Shape test data strategies and ensure systems are observable, stable, and ready to scale

• Elevate quality standards

Track meaningful KPIs (e.g., critical path coverage, defect escape) and continuously improve engineering practices

• Coach and collaborate

Review code, share best practices, and help teams build testable, high-quality systems

• Own problems end-to-end

Triage issues, perform root cause analysis, and implement long-term solutions—not just fixes

• Keep knowledge flowing

Maintain clear, living documentation and playbooks

• Innovate with AI

Explore and implement AI-driven approaches for test generation, anomaly detection, and smarter regression strategies

Must have

• Experience (3+ years) in software engineering or test automation, with a strong automation mindset
• Solid coding skills in C# (or similar modern language)
• A proactive approach—you enjoy designing solutions, not just executing tasks
• Performance testing tools (e.g., JMeter or similar)
• UI automation frameworks (e.g., Playwright, Selenium, Selenoid)
• CI/CD and engineering tools (Docker, Jenkins, Git, Jira/XRay)
• Working across Windows & Linux environments
• Understand modern software testing and Agile delivery
• Can clearly communicate ideas and document your work

Nice to have

• Experience with AI in testing (e.g., GitHub Copilot, MCP concepts)
• Familiarity with Elastic Stack or messaging systems (RabbitMQ)
• Exposure to hardware simulation or end-to-end system testing

We offer

• Contract of Employment
• Private Medical Care
• Cafeteria Program
• Multisport Card
• Life Insurance
• Hybrid Work Model (if applicable)
• 26 Days Annual Leave Regardless of Seniority
• Learning & Development (8,000+ Trainings)
• Career Growth Opportunities
• International & Multicultural Environment
• Foreign Language Use
• Employee Assistance Program
• Employee Referral Program
• Supportive & Inclusive Culture

Pay Transparency Statement

The monthly base salary range for this position starts from 10,900.00 PLN gross

Actual compensation will depend on factors such as qualifications, skills, competencies, geographic location, and relevant experience. Certain roles may include additional components beyond base salary, such as incentive opportunities or other forms of variable compensation. Details of any such components will be discussed during the interview process and will be governed by the applicable plan documents.

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