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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on ensuring application performance, scalability and engineering quality. Technologies include C#, performance testing tools like JMeter, UI automation with Playwright/Selenium, CI/CD and containers with Docker, Jenkins, Git and supporting tools like Jira/XRay. Responsibilities include designing and executing performance strategies for UI and APIs, building automation and scalable test frameworks, embedding tests into CI/CD, analyzing metrics and performing RCA, maintaining documentation and playbooks, and exploring AI-driven testing approaches.
from: 15 September 2026
to: 15 October 2026
10 900 - 10 900 złgross/ mth.contract of employment (full-time)
Offer parameters
level:mid • senior
working mode:hybrid
location:Katowice, Silesian
Katowice, Silesian
Requirements
Expected technologies
C#
Docker
Jenkins
Git
Jira
Xray
Optional technologies
RabbitMQ
Our requirements
- 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
Optional
- 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
Your responsibilities
- 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
About the project
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).
What 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
Benefits
- sharing the costs of sports activities
- private medical care
- life insurance
- employee referral program
Diebold Nixdorf
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.
Senior Test Engineer - QA (UI & API)
10.9k–10.9k zł / mth. (CoE)
I apply to:
Diebold Nixdorf
Katowice, Silesian
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