Overview
N-iX is looking for Senior Performance Test Engineer to join the team
Full job description
N-iX is looking for Senior Performance Test Engineer to join the team The role will focus on reproducing realistic enterprise workloads and failure conditions to identify bottlenecks and reliability issues before they reach customers. The engineer will work closely with development, QA, platform, and DevSecOps teams to define measurable performance expectations and integrate non-functional testing into our release process. Key Responsibilities: Design, develop, and execute non-functional test scenarios covering load, stress, scalability, endurance, failover, and resilience testing. Simulate real-world user traffic and peak load conditions to validate system Identify performance bottlenecks across application, database, API, infrastructure, and network layers. Work closely with developers, DevSecOps, QA, product, and infrastructure teams to define test objectives and acceptance criteria. Prepare detailed test reports including observations, bottlenecks, metrics, risks, and recommendations. Support performance testing as part of CI/CD pipelines where applicable. Skills required: 5+ years of commercial expertise in performance testing Experience designing load, stress, scalability, endurance and resilience tests. Strong experience with performance and load testing, preferably using tools such as k6, Gatling, JMeter, Locust, or similar. Good understanding of HTTP APIs, distributed systems, concurrency, queues and asynchronous processing. Experience with Kubernetes / containerized environments. Ability to analyse CPU, memory, JVM heap, disk, network and application metrics. Experience with observability tools such as Prometheus, Grafana, OpenTelemetry or similar. Experience integrating non-functional tests into CI/CD or scheduled test Scripting/programming skills in a language suitable for test automation. Ability to work with developers to reproduce production/customer performance problems and turn them into automated regression scenarios. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers
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