Senior Performance QA Engineer

Responsibilities

• Translate business and technical requirements into concrete performance test plans.
• Design and implement architecture-level and code-level optimizations to enhance system throughput and stability.
• Work closely with DevOps to ensure production-level high availability across distributed systems.
• Build and execute performance testing strategies covering load, stress, scalability, and reliability.
• Independently troubleshoot real-time performance issues, identifying root causes and delivering solutions end-to-end.
• Develop internal tools for automated performance monitoring, testing, and issue analysis.

Requirements

• Strong ability to identify performance bottlenecks at system, service, and code levels, with actionable solutions.
• Hands-on experience troubleshooting microservice performance issues.
• Deep expertise in Java performance tuning, profiling, and JVM-level optimization.
• Proficiency with relational and NoSQL databases (MySQL, MongoDB).
• Familiarity with performance analysis for middleware such as Kafka, Redis, RabbitMQ.
• Practical experience setting up performance test environments.
• Experience with containerization and orchestration (Docker, Kubernetes).
• Solid Linux skills, both command-line and system-level troubleshooting.
• Strong passion for building systems that excel in performance, scalability, and reliability.
• Practical experience using performance engineering tools such as K6 or JMeter.
• Programming language requirement: Java (must). Rust experience is a plus. Nice-to-have
  
• Hands-on experience with public cloud platforms (AWS, Azure, GCP, AliCloud).
• Experience setting up monitoring/observability stacks (Prometheus, Grafana).
• Prior experience conducting performance tests in production environments.
• Experience triaging and resolving production performance incidents.
• Linux kernel or OS-level performance analysis skills.
• Experience working within distributed, remote teams.
• Ability to leverage APM tools effectively for performance troubleshooting.