Role Description
We are still looking for the very Top Talent…and we would be delighted if you were to join our team More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.
What we look for?We are looking for a Senior Performance Test Engineer to join our Performance Test Services team. In this role, you will act as a technical expert and trusted advisor, helping internal teams ensure that applications and services meet the highest standards of performance, scalability, stability, and availability.
Hybrid position in Madrid (3 days at client´s office, Sol area, next to the underground)Key Responsibilities
- Design, develop, and execute performance and load testing strategies for business-critical applications.




- Build and maintain synthetic monitoring solutions to proactively measure application availability and user experience.
- Analyze test results and produce clear, actionable reports, including optimization recommendations.
- Review and assess performance testing and monitoring code written in Java, JavaScript, and TypeScript.
- Identify performance bottlenecks across applications, APIs, infrastructure, and integrations.
- Act as a trusted advisor, supporting stakeholders in defining and implementing testing and monitoring strategies.
- Contribute to the continuous improvement of testing frameworks, automation capabilities, methodologies, and best practices.
- Ensure high-quality, scalable, and maintainable test solutions throughout the software delivery lifecycle.

Mandatory Requirements
- Performance Testing
- Performance Engineering
- Test Automation
- Software Engineering

Proven experience designing and executing performance and load testing within complex enterprise environments.
Stro

📌 Senior Performance Test Engineer (Madrid)
🏢 Ust
📍 Madrid