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Java Performance Optimization — JVM Tuning, GC, Query Profiling | From $349

Java application responding too slowly? High memory usage or frequent GC pauses? N+1 database query problem in your JPA/Hibernate layer? Our senior Java engineers profile your application, identify bottlenecks, and fix the top 3 performance issues — with measurable before/after results.

JVM tuning, garbage collection optimization, connection pool sizing, slow query profiling. We find the 20% of code causing 80% of your application's slowness.

Fixed Price: from $349
3–5 business days
14-Day Warranty
from $349
Fixed price, VAT excluded
Delivery3–5 business days
Warranty14 days
EngineersSenior only
  • JVM parameter tuning (heap size, GC algorithm selection)
  • Garbage collection optimization (pause time vs throughput)
  • Connection pool sizing (JDBC, HTTP client)
  • Query profiling — top 10 slowest queries optimized
Request a Quote — from $349

We'll confirm the exact price within 2 hours and send a PayPal invoice

or order without payment
+373 22 843569
🔒Secured by PayPal
👨‍💻Senior engineers only
14-day fix warranty
🌍Worldwide delivery
Service ID: OW-PERF-03
WHAT YOU GET

Deliverables Included

Profiling session with VisualVM, async-profiler, or JFR (Java Flight Recorder)
Top 3 performance bottlenecks identified and documented
N+1 query detection and JPA/Hibernate optimization
GC tuning recommendations with specific JVM flags
Slow query analysis (EXPLAIN plans, index recommendations)
Code-level fix for each identified bottleneck
Before/after performance comparison (response time, memory, throughput)

Ready to Get Started?

JVM tuning, garbage collection optimization, connection pool sizing, slow query profiling. We find the 20% of code causing 80% of your application's slowness.

Get Quote — from $349⏱️ Delivery: 3–5 business daysOW-PERF-03
IDEAL FOR

Who This Service Is For

Backend teams whose Spring Boot API response times have degraded over time
Engineers dealing with OutOfMemoryError or frequent Full GC in production
Teams preparing for a load increase (product launch, seasonal traffic spike)
TECHNOLOGIES

Technologies We Use

Java 8–21Spring BootJPA/HibernatePostgreSQLMySQLJVMVisualVMasync-profilerJava Flight RecorderMicrometerPrometheus
HOW IT WORKS

Our Process — 4 Simple Steps

01
📋

Access & Profile

We connect to your staging/production and run low-overhead profiling.

02
⚙️

Analyze

Top bottlenecks identified: queries, memory, GC, thread contention.

03
🧪

Fix

Code-level fixes applied for each identified issue.

04

Measure

Before/after comparison delivered with measurable improvements.

FAQ

Frequently Asked Questions

We use low-overhead profiling tools (async-profiler, JFR) that can run on production with minimal impact, or replicate the performance issue in staging with production-equivalent data.

We diagnose both. Database query optimization (slow query log, EXPLAIN, index creation) is included in scope.

Typical results: 40–80% reduction in API response time for N+1 fixes, 30–60% memory reduction from GC tuning, and 2–5x query speedup from index optimization. Results depend on the specific issues found.

Yes. Spring Batch jobs, @Scheduled tasks, and async processing thread pools are included in the performance analysis. Thread pool sizing and batch size tuning are common findings.

Yes. L2 cache setup with Ehcache or Redis, query cache configuration, and appropriate entity cache strategies are part of the JPA/Hibernate optimization.

This service includes a 14-day warranty. If anything doesn't work as specified after delivery — we fix it at no extra cost. No questions asked.

A senior engineer with 5+ years of hands-on experience. We never assign junior staff or subcontractors to fixed-price services.

Click 'Order Now', complete the secure PayPal payment, and we'll contact you within 24 hours to confirm scope and collect access details.

Java Application Performance Optimization — from $349, 3–5 day Delivery

Senior engineers only. Fixed price. 14-day warranty. No surprises.

Request a Quote — from $349

We'll confirm the exact price within 2 hours and send a PayPal invoice

Or Contact Us First
or order without payment
📞 +373 22 843569

Or email us directly: [email protected]

🔒 PayPal Secured🔑 256-bit SSL👨‍💻 Senior Only✅ 14-Day Warranty🆔 OW-PERF-03