Performance Engineer

We are looking for a Performance Engineer to contribute to the implementation and execution of the performance engineering approach for our applications and supporting services. In this role, you will validate Non-Functional Requirements (NFRs), including response time, throughput, scalability, stability, and resource utilization. The engineer will work closely with development, DevSecOps, architecture, and product teams to help identify performance risks early, build automated performance testing capabilities, analyze system behavior under realistic workloads, and ensure applications meet agreed performance and scalability targets before production release. Responsibilities Contribute to the performance testing and performance engineering strategy based on application architecture, business usage patterns, and NFRs Help translate business and technical NFRs into measurable performance acceptance criteria, test scenarios, workload models, and success thresholds Execute load, stress, spike, endurance/soak, scalability, and capacity tests across web applications, APIs, and backend services Develop and maintain automated performance test scripts using existing performance testing frameworks Test the performance of HTTP/REST and gRPC-based APIs and services Build workload models based on expected user volumes, concurrency, transaction patterns, and production-like behavior Analyze performance across the application stack, including frontend, APIs, services, databases, caching layers, infrastructure, and third-party dependencies Identify performance bottlenecks and participate in root-cause analysis using application, infrastructure, database, and observability data Validate application behavior under normal, peak, and sustained workloads Measure key performance indicators such as response time, latency, throughput, error rate, concurrency, CPU, memory, network utilization, and database performance Integrate performance tests into CI/CD pipelines to support continuous performance validation and detect regressions early Help establish performance baselines and track performance trends across releases Collaborate with software engineers and DevSecOps teams to validate performance optimizations Produce clear performance test reports, highlight risks, and communicate whether agreed NFRs and release criteria have been met Support capacity planning activities for application and AWS infrastructure scalability Requirements 2+ years of performance testing/performance engineering experience with web applications and distributed systems Hands-on experience with performance testing tools such as k6, JMeter, or Gatling Familiarity with Locust or similar load testing tools Solid understanding of load, stress, and spike testing Working knowledge of endurance/soak, scalability, and capacity testing Intermediate English proficiency (B1+ level) We offer International projects with top brands Work with global teams of highly skilled, diverse peers Healthcare benefits Employee financial programs Paid time off and sick leave Upskilling, reskilling and certification courses Unlimited access to the LinkedIn Learning library and 22,000+ courses Global career opportunities Volunteer and community involvement opportunities EPAM Employee Groups Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.