Senior Performance Tester

4 945 - 6 868 USDNet per month - B2B
Testing

Senior Performance Tester

Testing
centrum, Łódź +4 Locations

Happy Team

Full-time
B2B
Senior
Remote
4 945 - 6 868 USD
Net per month - B2B

Job description

👉 About us


We are looking for Senior Performance Tester who is going to support one of our biggest clients - Royal Mail Group. It’s another milestone for our growing relationship with this client.

 

As the name of our company suggests, we strive for our employees to be satisfied with their work as well as life, in general. We achieve it by:

🔹 Well-integrated team (culture fit is key).

🔹 Partnership approach.

🔹 Friendly atmosphere.

🔹 Company retreats.

🔹 Full support for growth initiatives of our coworkers.


👉  Essential competencies:


🔹 Design, execute, and maintain performance tests (load, stress, soak) for key system components.

🔹 Develop and manage test scripts using Apache JMeter.

🔹 Model performance scenarios reflecting real user workloads (e.g., transactions per second – TPS).

🔹 Execute and optimize performance tests in Microsoft Azure cloud environments.

🔹 Monitor system metrics (CPU, memory, network) using Azure-native tools and dashboards.

🔹 Analyze test results, identify performance bottlenecks, and propose improvements.

🔹 Prepare detailed reports with findings, recommendations, charts, and KPIs.

🔹Collaborate with development, architecture, and DevOps teams to support performance-related improvements.


👉  Requirement:

🔹 Solid experience in performance testing for enterprise-scale systems.

🔹 Expertise with JMeter for load and performance testing.

🔹 Scripting/programming skills

🔹 Hands-on experience running performance tests in Microsoft Azure.

🔹 Good understanding of performance metrics

🔹 Strong analytical and troubleshooting skills.

🔹 Ability to clearly communicate findings and work effectively with cross-functional teams.

🔹 Experience documenting performance results and recommendations.


Nice to have

🔹 Experience with Azure monitoring tools

🔹 Familiarity with CI/CD pipelines and integrating performance tests into automated workflows.

🔹 Experience testing microservices and APIs (REST/SOAP).

🔹 Knowledge of Docker, Kubernetes, or Azure Kubernetes Service (AKS).


👉  What we offer:

🔹 Flexible and fully-remote job.

🔹 B2B contract.

🔹 Health insurance.

🔹 English lessons.

🔹 Happy initiatives, e.g. birthday fundraiser for the charity of your choice.

🔹 Financial bonus for first-time parents.

🔹 Funds for office space rental where you live.

🔹 Multisport card.

🔹 Training budget and space for knowledge-sharing.

🔹 Happy Trips (company retreats) twice a year.

🔹 Defined goals, informal atmosphere and Happy Team support.

Tech stack

    Apache JMeter

    advanced

    Microsoft Azure

    advanced

    Kubernetes

    advanced

    CI/CD

    regular

    REST API

    regular

    SOAP

    regular

Office location

Published: 09.12.2025

Senior Performance Tester

4 945 - 6 868 USDNet per month - B2B
Summary of the offer

Senior Performance Tester

centrum, Łódź
Happy Team
4 945 - 6 868 USDNet per month - B2B
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Informujemy, że administratorem danych jest HappyTeam sp. z o.o. z siedzibą w Łodzi (dalej jako "administrator"). Masz prawo do żądani... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.