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Tezos is the product of many organizations and individuals across the globe working together on an open-source project.

Senior Performance Tester

Madfish

Madfish

Europe
Posted on Nov 28, 2025

We are looking for a Senior Performance Tester to join our teams!

Requirements:

- Proven experience (4+ years) in performance testing of web applications, API and/or distributed systems.

- Strong understanding of performance testing concepts, methodologies, and tools (e.g. Locust, K6, JMeter etc).

- Familiarity with monitoring and profiling tools.

- Ability to analyze performance metrics and logs to diagnose and resolve issues.

- Experience with CI/CD pipelines and test automation frameworks.

- Solid understanding of networking and web applications architecture.

- Familiarity with cloud infrastructure (AWS, Azure, GCP).

- Strong analytical and problem-solving skills.

- Excellent communication and collaboration skills.

Will be plus

- DevOPS experience will be a plus

Responsibilities:

- Design, develop and execute performance test plans.

- Collaborate on Performance testing strategy.

- Analyze test results to identify system performance issues, bottlenecks and capacity limits.

- Work closely with development and infrastructure teams to investigate and resolve performance related issues.

- Develop and maintain performance test scripts and integrate them into the CI/CD pipeline.

- Mentor other team members and expand performance testing expertise.

Our benefits to you:
☘️An exciting and challenging job in a fast-growing holding, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖Paid vacations, sick leave, personal events days, days off
💵Referral program — enjoy cooperation with your colleagues and get the bonus
📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯Rewards program for mentoring and coaching colleagues
🗣Free internal English courses
✈️In-house Travel Service
🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie / book / pets lovers and more
🎳Other benefits could be added based on your location