🤖 15+ AI Agents working for you. Find jobs, score and update resumes, cover letter, interview questions, missing keywords, and lots more.
Cookies & analytics consent
We serve candidates globally, so we only activate Google Tag Manager and other analytics after you opt in. This keeps us aligned with GDPR/UK DPA, ePrivacy, LGPD, and similar rules. Essential features still run without analytics cookies.
Read how we use data in our Privacy Policy and Terms of Service.
🤖 15+ AI Agents working for you. Find jobs, score and update resumes, cover letter, interview questions, missing keywords, and lots more.
Ciklum • Kyiv, Ukraine
Role & seniority: Senior Performance QA Engineer (full-time)
Stack/tools: Gatling, JMeter, Locust; Java preferred; Scala for custom Gatling scripts; CI/CD (GitLab, Jenkins); API/microservices (REST, WebSockets); Kubernetes/Docker/Istio; monitoring/observability (Grafana, Prometheus, InfluxDB, AppDynamics, New Relic, Graphite); cloud platforms (AWS, GCP, Azure)
Define performance test strategy and requirements; create/maintain test artifacts (plans, reports, dashboards)
Develop, run, and maintain load/stress/volume/endurance tests across front-end, back-end, and middleware; build custom scripts
Analyze performance, identify bottlenecks, provide tuning recommendations; integrate tests into CI/CD; collaborate with Dev/SRE/QA
3+ years in performance testing
Experience with Gatling, JMeter, or Locust; strong knowledge of HTTP/REST, WebSockets, async systems
Java (and/or Scala) proficiency; ability to build from scratch and plan testing activities
Experience with CI pipelines (GitLab, Jenkins) and service-side monitoring tools
Kubernetes/Docker experience; cloud platforms (AWS/GCP/Azure)
English proficiency; strong analytical, communication, and collaboration skills
Gatling Cloud experience; JVM metrics/APM (Datadog, New Relic)
Advanced observability practices; performance tuning/optimizations
Experience with microservices architectures and ramp-up/load pattern
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.
Determine performance test requirements and define the Performance Test strategy
Create and maintain test artifacts (plans, reports, dashboards) in line with client expectations
Develop and support load testing scripts and scenarios for front-end, back-end, and middleware systems using Gatling, JMeter, and other tools
Execute load, stress, volume, and endurance tests as required
Identify potential and ongoing performance and capacity issues, analyze findings, and provide actionable recommendations
Analyze system performance, identify bottlenecks, and recommend tuning strategies
Develop custom performance/load scripts for APIs and microservices using Scala-based Gatling framework
Define and implement SLAs, performance benchmarks, and KPIs for services
Integrate performance testing into CI/CD pipelines (e.g., GitLab, GitHub Actions)
Collaborate with development, SRE, and QA teams to interpret results and drive improvements
Monitor and report performance metrics using tools such as Grafana, Prometheus, InfluxDB, or cloud-native observability stacks
Participate in incident analysis and postmortems when performance regressions are suspected
Stay up to date with industry trends in performance engineering and microservice observability
3+ years of extensive performance testing experience
Strong understanding of performance bottlenecks and end-to-end performance measures (server response time, throughput, latency)
Experience with performance testing tools such as Gatling, JMeter, or Locust
Solid experience with object-oriented or scripting languages, preferably Java
Ability to set up performance testing processes from scratch and plan testing activities
Experience with service-side monitoring tools such as AppDynamics, NewRelic, or Graphite
Hands-on experience setting up and maintaining jobs and pipelines using CI tools (GitLab, Jenkins)
Strong English verbal and written communication skills
2+ years of hands-on experience with Gatling or Gatling Cloud
Strong knowledge of HTTP, REST APIs, WebSockets, and asynchronous event-driven systems
Experience testing in microservices architectures (Kubernetes, Docker, Istio)
Proficiency in Scala or willingness to learn for custom Gatling scripting
Familiarity with CI/CD workflows and integrating performance tests in pipelines
Experience analyzing JVM-level metrics, logs, and APM tools (e.g., Datadog, New Relic)
Experience with cloud platforms (AWS, GCP, or Azure)
Solid understanding of load patterns, ramp-up strategies, and test environments
Excellent problem-solving, communication, and collaboration skills
Good analytical skills with strong interest in problem analysis and tuning
Team player, motivated to solve complex tasks
Self-motivated, disciplined, and results-oriented
Strong attention to detail and accuracy
Experience in performance optimization and application tuning
Familiarity with advanced observability and monitoring practices
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
Want to learn more about us? Follow us on Instagram
[https: //www.instagram.com/ciklum/], Facebook
[https: //www.facebook.com/Ciklum/], LinkedIn
[https: //www.linkedin.com/company/ciklum/].
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.