Performance Test Engineer

Job Description

We are looking for an experiencedPerformance Testerwith strong expertise in performance engineering, load testing, and capacity planning. The candidate will be responsible for defining and executing performance test strategies for complex applications, identifying system bottlenecks, and working closely with development, architecture, infrastructure, and DevOps teams to ensure optimal system performance, scalability and reliability. This role is primarilyhandsonwith opportunities to provide technical leadership and guidance.

Key Responsibilities

Performance Test Strategy & Planning

Define end-to-endperformance testing strategyaligned with business and nonfunctional requirements

Identify performance test scope, workloads, success criteria, and KPIs

Prepare performance test plans, scenarios, scripts, and execution schedules

Participate in architecture and design reviews from a performance standpoint Test Design & Script Development

Design and develop performance test scripts forload, stress, spike, endurance, and scalability testing

Create realistic workloads based on production usage patterns

Parameterize scripts, handle correlation, and apply best practices for script optimization

Validate test data, environments, and monitoring setup before execution

Test Execution & Analysis

Execute performance tests across different environments

Monitor system behavior using application, database, and infrastructure metrics

Analyze test results to identify performance bottlenecks related to application code, APIs, databases, middleware, network, or infrastructure

Produce detailed performance reports with findings, recommendations, and tuning suggestions

Performance Engineering & Optimization

Work with developers, architects, DBAs, and infrastructure teams to resolve performance issues

Supportroot cause analysisand validation of fixes through retesting

Provide recommendations on capacity planning, scalability, and resilience

Contribute to continuous performance optimization initiatives

Tools, Monitoring & CI/CD Integration

Integrate performance tests intoCI/CD pipelineswhere applicable

Use APM and monitoring tools to collect and analyze system metrics

Ensure performance testing is part of release readiness and golive activities

Mentoring & Best Practices

Provide technical guidance to junior performance testers

Standardize performance testing processes, templates, and reporting

Drive continuous improvement and adoption of performance engineering best practices

Required Skills & Experience

Performance Testing Tools

1012 years of handson experience in performance testing

Strong expertise with one or more tools such as:

LoadRunner (LR), JMeter, Gatling, NeoLoad

Technical & Engineering Skills

Strong understanding ofclientserver, web, microservices, and APIbased architectures

Experience testingweb, mobile, and backend applications

Proficiency in analyzing serverside metrics (CPU, memory, GC, threads, I/O)

Strong knowledge of REST APIs, messaging systems, and caching mechanisms

Handson experience withSQL and database performance validation

Monitoring & Diagnostics

Experience with monitoring and APM tools such as:

AppDynamics, Dynatrace, New Relic, Grafana, Splunk, CloudWatch (as applicable) CI/CD & Cloud (Preferred)

Exposure to CI/CD tools (Jenkins, Azure DevOps, GitLab CI, etc.)

Experience testing applications hosted oncloud platforms(AWS, Azure, GCP)

Familiarity with containerized and distributed systems (Docker, Kubernetes) is a plus Methodologies

Strong understanding ofSDLC and STLC

Experience working inAgile / Scrumand DevOps environments

Soft Skills

Strong analytical and troubleshooting skills

Excellent communication and documentation abilities

Ability to work independently and handle complex productionlike environments

Proactive mindset with strong ownership and accountability

Preferred Qualifications

Performance testing or cloud certification

Exposure to SRE or production performance monitoring Domain experience inBanking, Financial Services, Retail, Telecom, or Healthcare

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Job Details

Company
Response Informatics
Location
North West England, UK
Posted