Performance Engineer with JAVA

Job Title: JAVA Performance Engineer

Location: SECAUCUS, NJ - Onsite

Duration: 12+ Months W2 / 1099 Contract

Billing Rate: $55/hr on W2

Key Responsibilities:

• Perform end-to-end performance analysis, benchmarking, and tuning of Java applications.
• Identify performance issues, memory leaks, and CPU bottlenecks using profiling tools.
• Develop and execute performance test plans, scripts, and scenarios using tools like JMeter, LoadRunner, or Gatling.
• Collaborate with development teams to ensure code is optimized for performance.
• Monitor application performance in production and provide root cause analysis for performance issues.
• Recommend and implement improvements to code, database queries, and infrastructure configurations.
• Create detailed performance reports and present findings to stakeholders.
• Participate in architectural reviews with a focus on performance optimization.
• Work with DevOps to ensure performance KPIs are met in CI/CD environments.

Required Skills & Qualifications:

• 6+ years of experience in Java/J2EE development with strong exposure to performance engineering.
• Expertise in Java performance tuning, JVM internals, garbage collection, threading, and memory management.
• Hands-on experience with profiling and diagnostic tools (e.g., JProfiler, YourKit, VisualVM, Java Mission Control).
• Proficient in performance/load testing tools (e.g., Apache JMeter, LoadRunner, Gatling).
• Strong understanding of microservices architecture and RESTful APIs.
• Knowledge of databases (SQL/NoSQL) and experience with query optimization.
• Experience working in cloud environments such as AWS, Azure, or Google Cloud Platform.
• Familiarity with CI/CD pipelines and monitoring tools (e.g., New Relic, AppDynamics, Grafana, Prometheus).
• Excellent problem-solving, communication, and analytical skills.

Preferred Qualifications:

• Experience in tuning high-throughput, low-latency applications.
• Background in DevOps or Site Reliability Engineering (SRE) is a plus.
• Certifications in Java or Performance Engineering tools are desirable