You will get Backend Bug Fixes & Issue Resolution (Node.js / APIs)
Project details
This service is for teams that need backend bugs fixed properly, not patched temporarily.
I help identify, debug, and resolve backend and API issues in Node.js / SaaS systems, with a focus on stability, correctness, and preventing regressions.
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What I can help you with
• Backend and API bugs (Node.js / REST APIs)
• Logic errors, crashes, and unexpected behavior
• Database-related issues and query problems
• Performance bottlenecks and backend slowdowns
• Fixing fragile or rushed backend implementations
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How I work
I start by analyzing the issue and identifying the root cause, not just the symptom.
Fixes are implemented cleanly, tested, and validated to ensure the problem doesn’t come back.
You’ll receive a clear summary of what was wrong, what was fixed, and any recommendations to avoid similar issues.
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This service is a good fit if
✔ You need a backend issue fixed reliably
✔ You care about clean code and long-term stability
✔ You want a senior engineer to handle debugging
✘ Not for frontend-only issues
✘ Not for “quick hacks” or temporary patches
If you need a backend issue resolved correctly, this service is a good fit.
I help identify, debug, and resolve backend and API issues in Node.js / SaaS systems, with a focus on stability, correctness, and preventing regressions.
---
What I can help you with
• Backend and API bugs (Node.js / REST APIs)
• Logic errors, crashes, and unexpected behavior
• Database-related issues and query problems
• Performance bottlenecks and backend slowdowns
• Fixing fragile or rushed backend implementations
---
How I work
I start by analyzing the issue and identifying the root cause, not just the symptom.
Fixes are implemented cleanly, tested, and validated to ensure the problem doesn’t come back.
You’ll receive a clear summary of what was wrong, what was fixed, and any recommendations to avoid similar issues.
---
This service is a good fit if
✔ You need a backend issue fixed reliably
✔ You care about clean code and long-term stability
✔ You want a senior engineer to handle debugging
✘ Not for frontend-only issues
✘ Not for “quick hacks” or temporary patches
If you need a backend issue resolved correctly, this service is a good fit.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 2 |
Bug Investigation | |||
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Optional add-ons
You can add these on the next page.
Post-Fix Monitoring & Support (7 days)
+$100
4 reviews
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KS
Karolis S.
Dec 22, 2024
Full stack Symfony web developer
JB
Joseph B.
Mar 23, 2022
PHP Developer with Symfony experience
Aymen was nice to work with and had good frontend skills, but had trouble dealing with more complex tasks.
GE
Glen E.
Feb 14, 2022
Symfony 4 Strange Issue With DateTimeType Format Needs Fixing
Very good communication, completed the task very quickly and great to work with
MA
Moumen A.
Feb 8, 2022
Symphony Developer
Ayman was super active and attached to details, he was following up on each task given to him and added value to the team.
I am sure that he will be an added value to your team and project.
Good luck 👍
I am sure that he will be an added value to your team and project.
Good luck 👍
About Aymen
Senior SaaS Backend Engineer | Node.js (NestJS) | AWS
Tunis, Tunisia - 1:18 am local time
I work on real production systems — not demos or tutorials. My focus is long-term maintainability, performance, and clean architecture.
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What I specialize in
• Designing and building SaaS backends & APIs
• NestJS architecture (modular, testable, maintainable)
• Scaling Node.js applications in production
• AWS infrastructure (Docker, Kubernetes, CI/CD)
• Refactoring and stabilizing existing systems
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Clients typically hire me to
• Turn an MVP into a production-ready SaaS
• Fix backend code that doesn’t scale or is hard to maintain
• Add complex backend features safely
• Improve performance, reliability, and cloud costs
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How I work
• I ask the right questions early to avoid costly mistakes
• I deliver clean, documented, testable code
• I communicate clearly and proactively
• I treat your product as a long-term system, not a quick task
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Core stack
• Backend: Node.js, NestJS, TypeScript
• Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD
• Databases: PostgreSQL, MySQL, MongoDB, Redis
If you’re looking for a senior backend engineer who can own features end-to-end and think in systems, let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Aymen can start the project.
Delivery time starts when Aymen receives requirements from you.
Aymen works on your project following the steps below.
Revisions may occur after the delivery date.
Issue analysis & root cause identification
Debugging and backend fix implementation