About the role
Ciklum is looking for a Senior Performance QA Engineer to join our team full-time in Ukraine.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:
As a Senior Performance QA Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You will join a highly motivated team and will be working on a modern solution for our existing client. We are looking for technology experts who want to make an impact on new business by applying best practices and taking ownership.
Responsibilities:
Define performance test requirements and performance test strategy
Design, implement and execute performance test plans and scenarios using Gatling and k6
Develop and maintain load testing scripts for APIs, microservices, front-end and back-end systems
Execute load, stress, volume, spike and endurance tests
Analyze system performance, identify bottlenecks and capacity issues, and recommend tuning strategies
Define and implement SLAs, performance benchmarks and KPIs for services
Integrate performance testing into CI/CD pipelines (e.g. GitLab CI, GitHub Actions)
Monitor and report performance metrics using Grafana, Prometheus, InfluxDB or cloud- native observability stacks
Create and maintain test artifacts (plans, reports, dashboards) and communicate results to stakeholders
Collaborate with development, SRE and QA teams to interpret results and drive improvements
Participate in incident analysis and postmortems where performance regression is suspected
Requirements:
4+ years of experience in performance testing
2+ years of hands-on experience with Gatling (Gatling DSL; Gatling Cloud is a plus)
Hands-on experience with k6, including scripting in JavaScript/TypeScript
Proficiency in Scala or Java for Gatling scripting
Strong knowledge of HTTP, REST APIs, WebSockets and asynchronous event-driven systems
Understanding of end-to-end performance measures (response time, throughput, latency, error rate) and scalability
Solid understanding of load patterns, ramp-up strategies and test environments
Experience testing microservices architectures (e.g. Kubernetes, Docker, Istio)
Experience with APM and monitoring tools (e.g. Datadog, New Relic, AppDynamics), including analysis of JVM-level metrics and logs
Ability to set up the performance testing process from scratch and plan performance testing activities
Experience with setting up performance jobs in CI tools (GitLab CI, Jenkins)
Experience with cloud platforms (AWS, GCP or Azure)
Upper-Intermediate English or higher
Desirable:
Experience with other performance testing tools (JMeter, Locust)
Experience with Grafana Cloud k6 or distributed load generation
Experience building performance dashboards in Grafana for Gatling/k6 results
Personal skills:
Good analytical skills and strong interest in problem analysis and tuning
Excellent problem-solving, communication and collaboration skills
Good team player, motivated to solve complex tasks
Self-motivated, self-disciplined and result-oriented
Strong attention to detail and accuracy
What’s in it for you?
Strong community: Work alongside top professionals in a friendly, open-door environment
Growth focus: Take on large-scale projects with a global impact and expand your expertise
Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
Flexibility: Enjoy radical flexibility – work remotely or from an office, your choice
Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations
About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.
Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.
Originally posted on Himalayas
