You will get an expert bug fix for your Node.js, Express, or Go application
Project details
Are your users experiencing 500 errors? Is your API lagging, leaking memory, or failing with frustrating CORS issues? Don't waste days debugging.
I am a Senior Backend Engineer specializing in Go (Golang), Node.js, and TypeScript. I will quickly dive into your codebase, identify the root cause, and deliver a clean, tested fix.
What I can fix for you:
• Node.js & Express API crashes or silent failures
• Go concurrency issues (goroutines) & memory leaks
• Database query optimization (PostgreSQL, MongoDB, SQLite)
• Authentication, JWT, and CORS configuration errors
• Third-party API integration bugs
Why work with me?
I have an async-first mindset. I don't need hand-holding. Give me the repo, explain the issue, and I will deliver the Pull Request quickly and cleanly.
Note: Please message me before ordering so I can confirm the scope of the bug and recommend the right tier!
I am a Senior Backend Engineer specializing in Go (Golang), Node.js, and TypeScript. I will quickly dive into your codebase, identify the root cause, and deliver a clean, tested fix.
What I can fix for you:
• Node.js & Express API crashes or silent failures
• Go concurrency issues (goroutines) & memory leaks
• Database query optimization (PostgreSQL, MongoDB, SQLite)
• Authentication, JWT, and CORS configuration errors
• Third-party API integration bugs
Why work with me?
I have an async-first mindset. I don't need hand-holding. Give me the repo, explain the issue, and I will deliver the Pull Request quickly and cleanly.
Note: Please message me before ordering so I can confirm the scope of the bug and recommend the right tier!
Programming Languages
JavaScript, TypeScript, GoCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$30
|
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 |
Frequently asked questions
About Abdou
Go (Golang) & Node.js Backend API Expert | React & TypeScript
Dakar, Senegal - 8:28 pm local time
Whether you need to integrate a complex payment gateway, fix a critical database bottleneck (PostgreSQL/SQLite), or build a lightweight framework from scratch, I can deliver clean, type-safe, and scalable code.
As a Core Contributor at 01edu and the creator of open-source Go tools like 'Octopus' and 'Wave-pool', I don't just use frameworks—I understand how they work under the hood.
🔥 My core expertise:
- Backend: Go (Golang), Node.js (Express/Deno/Bun), TypeScript.
- APIs: RESTful, GraphQL, Webhooks, 3rd-party integrations (Stripe, messaging, etc.).
- Frontend: React, Next.js, Flutter.
- Infrastructure: Docker, Linux, PostgreSQL, Redis.
🌍 Why work with me?
- Perfect overlap with European (CET) business hours and US East Coast mornings.
- Native French and Fluent English (I adapt to your team's culture).
- Async-first mindset: I don't need hand-holding. Give me the requirements, and I'll deliver the PR.
Send me a quick message with your current tech stack or your API issue, and I'll tell you honestly if I'm the right developer for the job. Let's build something solid.
Steps for completing your project
After purchasing the project, send requirements so Abdou can start the project.
Delivery time starts when Abdou receives requirements from you.
Abdou works on your project following the steps below.
Revisions may occur after the delivery date.
ode Review & Reproduction
I will pull your code, set up the local environment, and reproduce the exact bug you are experiencing to find the root cause.
Development & Bug Fix
I will write a clean, optimized fix for the issue without breaking any existing features in your application.