The Role:
We are looking for a Senior Performance Test Engineer to join our high-performing team and contribute to the performance, scalability, and reliability of our trading platforms. This role involves hands-on performance testing and analysis in a high-throughput, low-latency environment, collaborating closely with development and infrastructure teams to ensure system efficiency and stability.
You will work with modern tools and practices, leveraging K6 with JavaScript/TypeScript, containerized environments (Docker, Kubernetes), and cloud-native performance strategies. While this is a technical role, there may be opportunities to mentor and guide engineers on the team as your role evolves.
The main responsibilities of the position include:
Define and refine performance testing strategy across the company
Develop and maintain performance testing scripts using K6 and JavaScript/TypeScript, focusing on reusable and scalable testing approaches
Execute various types of performance tests (load, stress, soak) on REST and GraphQL APIs
Monitor and analyze test results using tools like Grafana and Prometheus, providing actionable recommendations
Collaborate with engineering teams to identify and troubleshoot system performance bottlenecks
Apply performance best practices in Spring Boot, JVM, and microservice-based environments
Integrate performance tests into CI/CD pipelines (GitLab, Jenkins) to enable continuous validation
May take on mentorship or leadership responsibilities over engineers within the team over time
Main requirements:
BSc/MSc in Computer Science, or related discipline
5+ years of hands-on experience in QA
2+ years of experience in performance testing using tools like K6 or Gatling
Proficiency in JavaScript/TypeScript for writing test scripts
Strong experience in API performance testing (REST, GraphQL), including rate limiting and caching strategies
Familiarity with Spring Boot applications and microservices architecture
Experience working in Docker/Kubernetes environments, including performance-related configurations (HPA, resource limits, etc.)
Proficiency with monitoring/observability tools such as Grafana, Prometheus, etc.
Experience integrating testing into CI/CD pipelines (GitLab CI, Jenkins)
The following will be considered an advantage:
Experience with gRPC, WebSockets, and HTTP/2 performance testing
JVM tuning and database performance optimization expertise
Familiarity with cloud-native performance strategies and service mesh technologies (Istio, Linkerd)
Exposure to distributed tracing tools like Jaeger or OpenTelemetry
Experience in managing/leading a team
Benefit from:
Attractive remuneration package
Intellectually stimulating work environment
Continuous personal development and international training opportunities
The Hiring Experience: What Awaits You
Let’s Connect – Intro Chat with Talent Acquisition
Deep Dive – First Interview with Your Future Team
Final Connection – Final Interview
All applications will be treated with strict confidentiality!
