
Proventus Metrics
Jersey City, New Jersey • Today
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Third Party, Contract
Depends on Experience
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Proventus Metrics
Jersey City, New Jersey • Today
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
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