Lead/Senior Performance Engineer

Reflections Info Systems; Thiruvananthapuram; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Reflections Info Systems is seeking a Lead/Senior Performance Engineer in India to drive end-to-end performance engineering for enterprise applications. You will analyze CPU, memory, and I/O bottlenecks, review JVM heap and thread dumps, perform GC tuning, and coordinate across DevOps, DB and development teams.

The role emphasizes proactive root-cause analysis, measurement against SLAs/SLOs, and mentoring junior engineers in a fast-paced environment.

Qualifications

• 8+ years of IT experience with significant performance engineering expertise.
• Proven ability to troubleshoot complex performance issues in enterprise apps.
• Strong knowledge of JVM internals, memory management, threading, GC, CPU and I/O.
• Ability to independently perform performance analysis and identify root causes.
• Experience collaborating with DevOps, infrastructure, and database teams.

Responsibilities

• Lead end-to-end application performance engineering and troubleshooting.
• Analyze performance issues across development, test, and production environments.
• Perform detailed Linux system-level performance analysis including CPU, memory, I/O, and network usage.
• Analyze JVM heap dumps to identify memory leaks and bottlenecks.
• Analyze thread dumps to identify deadlocks and CPU-intensive threads.
• Perform GC analysis and JVM tuning opportunities.
• Conduct database performance analysis including slow queries and indexing.
• Generate and analyze flame graphs to locate CPU hotspots.
• Use monitoring/observability tools to correlate metrics and identify degradation.
• Conduct root-cause analysis and provide actionable recommendations.
• Work with development teams to identify inefficient code paths and concurrency issues.
• Define performance baselines and monitor against SLAs/SLOs.
• Lead optimization initiatives and validate improvements via benchmarks.
• Prepare technical performance reports and bottleneck analyses.
• Mentor junior engineers and provide technical leadership.

Skills

Linux

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_t?

Application performance bottleneck_id

Root-cause analysis and performance_优化

Tools

JProfiler

VisualVM

Eclipse MAT

YourKit

Dynatrace

AppDynamics

New Relic

Datadog

Grafana

Prometheus

Splunk

ELK

APM

Kubernetes

JMeter

LoadRunner

Gatling

CI/CD monitoring

AWS

Azure

GCP

Job description

We are looking for an experienced Lead Performance Engineer with strong expertise in application performance engineering, production troubleshooting, and performance optimization.The ideal candidate should have hands-on experience analyzing application and server-side performance issues using Linux, heap dumps, thread dumps, Garbage Collection (GC) analysis, database analysis, flame graphs, and application/server-side monitoring tools.The candidate will work closely with application development, DevOps, infrastructure, and database teams to identify performance bottlenecks, conduct root-cause analysis, and drive performance improvements across enterprise applications.

Job Description

• 8+ years of overall IT experience, with significant experience in Performance Engineering / Application Performance Management.
• Proven experience troubleshooting complex performance issues in enterprise applications.
• Strong understanding of JVM internals, memory management, threading, GC, CPU and I/O behavior.
• Ability to independently perform performance analysis and identify root causes rather than only execute predefined performance test scripts.
• Experience working with development, DevOps, infrastructure, and database teams.

Responsibilities 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 initiatives.

Primary 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 optimization

Secondary 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

Role:

Lead/Senior Performance Engineer

Close Date :

04-09-2026