Reflections Info Systems - Senior Performance Engineer - JVM/Linux in Ernakulam, भारत

Job Description:6+ years of overall IT experience, with significant experience in Performance Engineering - Application Performance https://jobeax.com/link/j34KRtsa7lfZsnJP experience troubleshooting complex performance issues in enterprise https://jobeax.com/link/FTo50c5Z13fuamRi understanding of JVM internals, memory management, threading, GC, CPU and I/O https://jobeax.com/link/heB1Mlu5Lu7D5Nev Linux troubleshooting https://jobeax.com/link/aBFol4QBev1SVrMA to independently perform performance analysis and identify root causes rather than only execute predefined performance test https://jobeax.com/link/n1AvZkWvxVKp1zt0 working with development, DevOps, infrastructure, and database https://jobeax.com/link/DB6EPuDzsTNx7ur8 include:- Lead end-to-end application performance engineering and troubleshooting activities.- Analyze application and server performance issues across development, test, and production environments.- Perform detailed Linux system-level performance analysis, including CPU, memory, disk I/O, network, processes, and system resource utilization.- Analyze JVM heap dumps to identify memory leaks, excessive object creation, and memory-related bottlenecks.- Analyze thread dumps to identify deadlocks, thread contention, blocked/waiting threads, thread pool issues, and CPU-consuming threads.- Perform Garbage Collection (GC) analysis, including GC logs, pause times, heap utilization, allocation patterns, and JVM tuning opportunities.- Conduct database performance analysis, including slow queries, execution plans, connection pools, locks, waits, indexing, and database resource utilization.- Generate and analyze flame graphs for identifying CPU hotspots and application-level performance bottlenecks.- Use application and server-side monitoring/observability tools to identify performance degradation and correlate application, infrastructure, and database metrics.- Conduct root-cause analysis of performance incidents and provide actionable recommendations.- Work with development teams to identify inefficient code paths, resource utilization issues, memory problems, and concurrency-related bottlenecks.- Define performance baselines and monitor application performance against agreed SLAs/SLOs.- Lead performance optimization initiatives and validate improvements through benchmarking and load testing.- Prepare technical performance reports, bottleneck analysis, and optimization recommendations.- Mentor junior performance engineers and provide technical leadership across performance engineering https://jobeax.com/link/PXPJziXhWZXnQqQY Skills:Candidates must have strong hands-on experience with:- Linux - system-level troubleshooting and performance analysis- Heap Dump Analysis- Thread Dump Analysis- Garbage Collection / GC Analysis- Database Performance Analysis- Flame Graphs- Application-side Monitoring- Server-side Monitoring- JVM performance troubleshooting and tuning- Application performance bottleneck identification- Root-cause analysis and performance optimizationSecondary Skills:- Java/JVM performance engineering- JProfiler, VisualVM, Eclipse MAT, YourKit or similar profiling tools- Dynatrace, AppDynamics, New Relic, Datadog, Grafana, Prometheus or similar observability platforms- Splunk or ELK for log analysis- APM and distributed tracing- Kubernetes/container performance monitoring- SQL performance tuning- Load/performance testing tools such as JMeter, LoadRunner, Gatling or similar- CI/CD performance monitoring and engineering- Cloud environments such as AWS, Azure or GCP (ref:hirist.tech)