You will get I will fix backend bugs, API errors, and performance issues
Project details
Are you dealing with backend issues, broken APIs, or slow performance?
I help companies quickly fix critical backend problems and improve system performance.
With 6+ years of experience as a Senior Backend Engineer, I specialize in debugging complex systems, identifying root causes, and delivering reliable, production-ready solutions using Go, Node.js, and Java.
What you will get:
• Fast and accurate bug fixing
• Clear root cause analysis (not just temporary fixes)
• Clean and maintainable code
• Performance improvements when needed
• Professional communication and fast delivery
I have experience working with:
• REST APIs, WebSockets, gRPC
• PostgreSQL, MySQL, SQL Server
• Distributed systems and real-time applications
• Payment integrations and production systems
If your backend is failing, slow, or unstable — I can fix it.
Send me a message and let’s solve your issue fast.
I help companies quickly fix critical backend problems and improve system performance.
With 6+ years of experience as a Senior Backend Engineer, I specialize in debugging complex systems, identifying root causes, and delivering reliable, production-ready solutions using Go, Node.js, and Java.
What you will get:
• Fast and accurate bug fixing
• Clear root cause analysis (not just temporary fixes)
• Clean and maintainable code
• Performance improvements when needed
• Professional communication and fast delivery
I have experience working with:
• REST APIs, WebSockets, gRPC
• PostgreSQL, MySQL, SQL Server
• Distributed systems and real-time applications
• Payment integrations and production systems
If your backend is failing, slow, or unstable — I can fix it.
Send me a message and let’s solve your issue fast.
Programming Languages
Java, TypeScript, GoCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$25
|
Standard
$60
|
Advanced
$120
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Additional Revision
+$10Frequently asked questions
About Luis Alberto
Senior Backend Engineer (Go/Node) | API & Performance Optimization | A
Barranquilla, Colombia - 3:08 pm local time
Whether it's debugging complex issues, optimizing performance, or designing scalable APIs — I deliver production-ready solutions fast.
With 6+ years of experience as a Senior Backend Engineer and Development Lead, I specialize in designing high-performance APIs, distributed systems, and real-time architectures using Go, Node.js, and Java.
My core strength is not just coding — it's understanding systems deeply, identifying hidden issues, and improving performance, reliability, and scalability.
What I can help you with:
• Fixing backend bugs and production issues
• API development (REST, WebSockets, gRPC)
• Performance optimization (slow queries, bottlenecks)
• Code review & debugging (fast root-cause analysis)
• System design (Hexagonal & Clean Architecture)
• AI-generated code review & improvement
I have experience working with:
• PostgreSQL, MySQL, SQL Server
• Distributed systems & real-time communication
• Payment integrations & POS systems
• Docker, Linux, CI/CD environments
Why clients work with me:
• I don’t just fix bugs — I solve root problems
• Strong focus on clean, maintainable architecture
• Fast understanding of complex systems
• Clear and professional communication
If you need a developer who can quickly understand your system and deliver solid, production-ready solutions — let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Luis Alberto can start the project.
Delivery time starts when Luis Alberto receives requirements from you.
Luis Alberto works on your project following the steps below.
Revisions may occur after the delivery date.
Issue analysis
I review your code, logs, and system behavior to identify the root cause of the problem.
Root cause identification
I analyze the issue deeply to find the exact source (not just symptoms).