Poland Hybrid

Coherent Solutions is hiring a QA Performance Engineer (IoT sphere)

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

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

Nice to Have

  • 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

Benefits

  • Technical and non-technical training for professional and personal growth
  • Internal conferences and meetups to learn from industry experts
  • Support and mentorship from an experienced employee to help you professional grow and development
  • Health insurance
  • English courses
  • Sports activities to promote a healthy lifestyle
  • Flexible work options, including remote and hybrid opportunities
  • Referral program for bringing in new talent
  • Work anniversary program and additional vacation days
Required Skills
QAJavaGitHub Actions
About company
Coherent Solutions

At Coherent Solutions, we’re more than just a digital product engineering company—we’re your partner in navigating the fast-paced digital world. Our global team of talented professionals doesn’t just work for you, we work with you, seamlessly blending innovation with collaboration to drive the kind of results that truly make a difference.

Imagine having a trusted ally who understands your business goals and helps you turn bold ideas into reality. That’s what we do. With nearly three decades under our belt, we’ve become the go-to digital partner for companies looking to thrive in an ever-evolving market.

Our vision is to be the industry leader in digital product engineering, empowering clients to thrive in the digital age. We foster a culture where creativity thrives, collaboration is second nature, and continuous learning is a way of life. Technology is our passion, and our focus is on creating meaningful impact for every business we partner with.

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Posted 15 days ago