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IT Performance Engineer

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Beacon Hill

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Location:
United States , Philadelphia

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Category:
IT - Software Development

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Contract Type:
Employment contract

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Salary:

100000.00 - 110000.00 USD / Year
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Job Description:

We are looking for a Senior Web Performance Engineer to lead performance optimization for large-scale, web-based applications. This role focuses on end-to-end performance testing and tuning across front-end, middleware, and backend services. You will design and execute performance strategies to ensure fast, scalable, and reliable web experiences.

Job Responsibility:

  • Define and implement performance testing strategies for web applications and APIs
  • Develop and maintain performance test scripts using Java or Python for web workloads
  • Conduct load, stress, and scalability testing for browser-based and API-driven traffic
  • Analyze front-end performance metrics (Core Web Vitals, Lighthouse scores) and optimize rendering, caching, and resource delivery
  • Profile and tune middleware components (API gateways, message brokers, application servers) for latency and throughput
  • Identify bottlenecks across client-side, server-side, and network layers using APM and browser dev tools
  • Collaborate with developers to optimize code, queries, and configurations for web performance
  • Automate performance tests in CI/CD pipelines and integrate results into dashboards
  • Establish KPIs for page load time, time-to-interactive, and API response times
  • Document findings and provide actionable recommendations for improving user experience

Requirements:

  • 5+ years in performance engineering for web-based applications
  • Strong programming skills in Java or Python for scripting and automation
  • Expertise in performance testing tools (JMeter, Gatling, Locust, k6) for web and API workloads
  • Deep understanding of web performance principles: HTTP/HTTPS, CDN, caching, compression, image optimization
  • Familiarity with browser performance tools (Chrome DevTools, Lighthouse) and Core Web Vitals
  • Experience with APM tools (New Relic, Datadog, Dynatrace) and distributed tracing
  • Knowledge of middleware tuning (Tomcat/Jetty, NGINX, API gateways)
  • Understanding of network latency, TLS overhead, and resource prioritization

Additional Information:

Job Posted:
December 23, 2025

Employment Type:
Fulltime
Work Type:
Remote work
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