Performance Engineer

EPAM Systems; United States; À distance; USD 90 000 - 130 000; Plein temps

Résumé du poste

EPAM Systems Inc. in the United States is seeking a Performance Engineer to drive performance engineering for applications and services. You will validate NFRs, model workloads, and work with DevSecOps, architecture, and product teams to prevent performance risks before release.

The role involves executing load, endurance, and capacity tests, building automated scripts, and delivering clear reports. Strong collaboration with cross-functional teams and a focus on production-like scenarios are

Qualifications

• 2+ years of performance testing/engineering experience with web apps and distributed systems.
• Hands-on with performance testing tools like k6, JMeter, or Gatling.
• Familiarity with Locust or similar load testing tools.
• Solid understanding of load, stress, and spike testing.
• Intermediate English proficiency (B1+).

Responsabilités

• Contribute to performance testing and performance engineering strategy based on architecture and NFRs.
• Translate NFRs into measurable performance criteria, test scenarios, workload models, and success thresholds.
• Execute load, stress, spike, endurance/soak, scalability, and capacity tests across web apps, APIs, and backend services.
• Develop and maintain automated performance test scripts using existing frameworks.
• Test performance of HTTP/REST and gRPC-based APIs and services.
• Build workload models based on expected user volumes and production-like behavior.
• Analyze performance across stack and identify bottlenecks; participate in root-cause analysis.
• Validate behavior under normal, peak, and sustained workloads; measure KPIs.
• Integrate performance tests into CI/CD to detect regressions early.
• Produce clear performance test reports and communicate release criteria status.
• Support capacity planning for applications and AWS infra scalability.

Connaissances

Performance testing

Web test design

CI/CD integration

English proficiency

Outils

k6

JMeter

Gatling

Locust

Description du poste

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)