QA Performance Engineer (IoT sphere) w Wrocław, Polska
COHERENT SOLUTIONS sp. z o.o.
KontraktUmowa czasowa lub freelancing
Wrocław, Polska
Your responsibilities
Execute performance, load, stress, and soak tests for backend services, REST APIs, and microservices using JMeter;
Develop and maintain JMeter test scripts under the guidance of senior performance engineers;
Contribute to the performance testing framework by adding new scenarios, reusable components, and test data sets;
Analyze test results, prepare reports, and help identify performance bottlenecks together with Developers and DevOps Engineers;
Use observability tools such as Grafana and Datadog to review dashboards and logs and support root cause analysis;
Document test plans, scenarios, execution results, and findings in a clear and reproducible way;
Collaborate with Developers, DevOps Engineers, and QA peers to ensure performance criteria are met before release;
Participate in Agile ceremonies, including planning, refinement, retrospectives, and daily team communication;
Continuously improve skills in performance engineering, JMeter, and cloud-based system performance through self-learning, training, and knowledge sharing;
Our requirements
1+ year of experience in QA, manual or automation;
Basic understanding of performance testing concepts, including common test types and key metrics;
Hands-on exposure to JMeter, including basic test plan structure, script recording, parameterization, and assertions;
Understanding of REST APIs and HTTP basics, including methods, status codes, headers, and JSON payloads;
Basic knowledge of Java and object-oriented programming;
Ability to read and interpret graphs, dashboards, and basic system metrics;
Strong analytical thinking, attention to detail, and problem-solving skills;
Good communication skills and ability to work in a team;
Familiarity with Agile/Scrum software development process;
English level: B2 or higher.
Optional
Basic Linux command-line skills;
Basic understanding of cloud platforms such as AWS, Azure, or GCP;
Exposure to observability or APM tools such as Grafana, Datadog, or CloudWatch;
Understanding of microservices architecture;
Familiarity with CI/CD pipelines such as Azure DevOps, GitHub Actions, or Jenkins;
Familiarity with home automation technologies or IoT.
What we offer
Resources and opportunities for self-education in technical and non-technical areas;
Access to internal conferences and meetups for knowledge sharing and learning from industry experts;
Medical insurance;
Sports activities to promote a healthy lifestyle;
Flexible work options, including remote and hybrid opportunities;