PROGRAMMING SERVICES

Java Performance Optimization — Fix Slow APIs, Memory Leaks & N+1 Queries — from $349

Name: Optimum Web
Address: Calea Iesilor 8, office 3, Chisinau, MD-2069, MD
Telephone: +373 22 843569
Rating: 4.8

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.

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

Request a Quote — from $349

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

+373 22 843569

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)

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

Access & Profile

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

Analyze

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

Fix

Code-level fixes applied for each identified issue.

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.

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