Performance Engineer (Frontend Focus)

Capgemini

Jersey City, United States

6 days ago

Apply on www.dice.com

Prepare application

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

10 years minimum

Working hours

Regular working hours

Job source

www.dice.com

Tech stack

Microsoft Azure Cloud Computing Profiling Databases Amazon DynamoDB Apache JMeter NoSQL Site Reliability Engineering Practices SQL Databases Web Usability Datadog Link Control Protocol

+15 more

System Availability Grafana Gatling Caching Scalability Testing AWS ECS Front End Software Development Functional Programming Cloudwatch Api Gateway Splunk New Relic (SaaS) Appdynamics Dynatrace Network Optimization

Job description

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 full-stack performance visibility.
Improve frontend performance and Core Web Vitals (LCP, FID, CLS, INP) through network optimization, resource compression, and rendering improvements.
Conduct end-to-end performance analysis across application, database, infrastructure, and cloud layers.
Perform load, stress, soak, and scalability testing using JMeter, Gatling, K6.

Requirements

Strong knowledge of RUM and APM tools - AppDynamics (preferred), New Relic, Datadog.
Hands-on 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.