
Proventus Metrics
Jersey City, New Jersey • Yesterday
Easy Apply
Third Party, Contract
Depends on Experience
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Proventus Metrics
Jersey City, New Jersey • Yesterday
Easy Apply
Third Party, Contract
Depends on Experience

Location: Onsite – New Jersey Client: Capgemini / Comcast Experience: 10+ Years
We are seeking a seasoned Performance Engineer with a strong focus on frontend performance engineering. Experience with SRE principles is highly preferable. The ideal candidate will drive service reliability, optimize frontend performance, and enhance observability across enterprise applications using modern monitoring and profiling tools.
Ensure high availability and resilience of services, applying SRE practices (SLI/SLO/SLA definitions, error budgets, toil reduction).
Identify and resolve systemic reliability issues through architectural improvements.
Develop and enhance observability dashboards using AppDynamics, Grafana, ELK, Splunk, OpenTelemetry.
Establish performance KPIs, monitor trends, and set proactive alerting mechanisms.
Implement distributed tracing and fullstack performance visibility.
Improve frontend performance and Core Web Vitals (LCP, FID, CLS, INP) through network optimization, resource compression, and rendering improvements.
Conduct endtoend performance analysis across application, database, infrastructure, and cloud layers.
Perform load, stress, soak, and scalability testing using JMeter, Gatling, K6.
Strong knowledge of RUM and APM tools – AppDynamics (preferred), New Relic, Datadog.
Handson experience with Cloud platforms (AWS – ECS/EKS, Lambda, DynamoDB, CloudWatch, API Gateway, ALB; Azure).
Expertise in SQL/NoSQL databases and caching strategies.
Solid understanding of Core Web Vitals, browser performance, rendering pipelines, and CDN optimization.
Proficiency with frontend profiling tools (Lighthouse, Chrome DevTools).
Strong experience in performance scripting (JMeter, K6, Gatling).
Dashboarding and monitoring skills with AppDynamics, Quantum Metrics, ELK, Grafana.
Frontend Performance: Strong
Performance Tuning: Very Strong
Load Testing: Very Strong
Observability: Strong
SRE Fundamentals: Preferable
🔢 Crunching numbers...
New York, New York
•
2d ago
Design and execute performance, load, stress, endurance, and scalability tests for enterprise applications.Develop and maintain performance test scripts using JMeter, LoadRunner, or similar tools.Analyze application performance metrics and identify bottlenecks across application, database, API, and infrastructure layers.Perform API performance testing for REST/SOAP services and validate response times, throughput, and scalability.Work with development, QA, DevOps, and infrastructure teams to tro
Easy Apply
Contract
Depends on Experience
New York, New York
•
Today
About Clay Our mission is to help organizations turn any growth idea into reality. We see growth as a creative practice, not a formula. Finding and reaching your best-fit customers takes unique ideas and constant iteration. As AI makes execution faster and tactics easier to copy, creativity is the only lasting advantage. We're already helping thousands of customers - including Anthropic, Notion, Google, and Ramp - go to market with unique data, signals, and AI research. In 2025, we raised a $
Full-time
USD 170,000.00 - 300,000.00 per year

Cox Communications
New York, New York
•
Today
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Full-time
USD 121,800.00 - 203,000.00 per year
New York, New York
•
Today
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Full-time