You will get Java Backend Code Review & Stabilization Plan
Project details
I help teams stabilize and improve existing Java backend systems.
This project is designed for situations where the backend is already in production, but bugs, unclear structure or technical debt slow down development and increase risk. Instead of risky rewrites, I focus on understanding the system first, identifying the most impactful issues and applying safe, incremental improvements.
You get clear communication, predictable delivery and practical results — whether it’s a code review, bug fixing or production debugging. My goal is to make your backend easier to maintain and more reliable, without disrupting your business.
This project is designed for situations where the backend is already in production, but bugs, unclear structure or technical debt slow down development and increase risk. Instead of risky rewrites, I focus on understanding the system first, identifying the most impactful issues and applying safe, incremental improvements.
You get clear communication, predictable delivery and practical results — whether it’s a code review, bug fixing or production debugging. My goal is to make your backend easier to maintain and more reliable, without disrupting your business.
Programming Languages
Java, KotlinCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$350
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 1 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100
Follow-up Call
+$50Frequently asked questions
About Filip
Backend Engineer | Fixing, Refactoring & Stabilizing Production
Dabrowa Gornicza, Poland - 5:56 am local time
If your application is hard to maintain, unstable in production or slowed down by technical debt — I can step in, understand it quickly and make it reliable again.
What I usually work on:
• Debugging production issues and performance problems
• Refactoring legacy Java codebases
• Improving API design and system stability
• CI/CD pipelines (GitHub Actions, Maven, Nexus)
• Writing missing tests and improving code quality
Tech stack:
Java, Kotlin, Spring Boot, REST APIs, SQL, Docker, GitHub Actions, Maven
How I work:
• I focus on understanding the system first
• I communicate clearly and honestly
• I deliver incremental improvements (not risky rewrites)
If you need someone who can jump into an existing backend and make it better — let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Filip can start the project.
Delivery time starts when Filip receives requirements from you.
Filip works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & access
You provide access to the repository (read-only is enough) and a short description of the problem or goal.
Analysis
I review the codebase, logs or reported issues and identify the most important risks or improvement areas.